TW434283B - Process and apparatus for producing prepreg - Google Patents

Abstract

There is provided a process of producing a prepreg in which a sheet-shaped fabric material as a reinforcing substrate is continuously provided, a thermosetting resin as a matrix resin in a molten state is supplied to the substrate, and the resin is heated, which process contains the steps of: (a) a first coating step in which the matrix resin is applied to one surface of the reinforcing substrate using a first die coater, and an amount of the matrix resin to be applied is equal to or larger than an amount of the matrix resin which the reinforcing substrate is able to contain in its total void as much as possible, (b) a first heating step in which the reinforcing substrate having the matrix resin is heated by a first non-contact type heating unit so that the matrix resin is impregnated into the inside of the reinforcing substrate, whereby a laminar composite made of the matrix resin and the reinforcing substrate is obtained, (c) a second coating step in which the matrix resin is further applied to at least one of surfaces of the laminar composite using a second die coater, and (d) a second heating step in which the laminar composite which has an amount of the matrix resin applied in the step (c) is heated by a second non-contact type heating unit so as to semi-harden the matrix resin.

Description

89. 8. -9 Λ3 4 28 3 ^ No. 8611U98 · I petition case __1 > 'Chinese specification revision Ma Republic S S. August 9th, 5. Description of the invention (1 Background of the invention The field of the invention is related to ~ A method for manufacturing a prepreg, wherein a liquid thermosetting resin is used as a matrix resin and supplied to a sheet-shaped reinforced substrate including a fabric, and a substrate including the resin is heated. Method for manufacturing a device for prepreg. The present invention relates in particular to a method for manufacturing a prepreg, in which no solvent is used to impregnate a sheet-like reinforced fabric substrate such as glass cloth with a matrix resin, and there is also a method for manufacturing a prepreg Device for manufacturing prepreg. 8. Please read the notes on the back before filling out this page.) Intellectual Property Bureau, Ministry of Economic Affairs, employee consumer cooperatives print out the know-how. Greased glass is used on this substrate to prevent prepreg. The quality of the material is a case (2 7 illustrations). There is a method for manufacturing solid resin dissolved in one cloth and one strong method. Therefore, the micro-results in the use of explosion equipment will overcome the JP-shown substrate At this time, the amount of the prepreg solvent remains, and this amount remains deteriorated. The method of using the solvent A) to place the first prepreg method, wherein one is used as a matrix tree solvent to obtain a low viscosity solution, and a variety of immersion is mixed with this Solution and allow the substrate to dry. It can be easily produced because the matrix resin is sufficiently incorporated by capillary action. The method has the following problems: the need for a solvent recovery device will increase the installation cost of prepreg manufacturing; and because the solvent will form bubbles, the related problems of the prepared prepreg method, Japanese Patent Early Publication 5 2 0 0 7 4 law. In this method, No. 8 discloses a type of use, which is provided with a multi-tape press. The paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) -4- Π 4 23 3 I Α7

:! R ι. * J _ __Β7 ί_ V. Description of the Invention (2) Machine 2 1 ′-a feed module 2 2 for a reinforced substrate such as glass cloth, and one of the multi-belt presses 2 1 Extruder in front of the entrance 2 3. In this extruder 23, a matrix resin 2 'such as an epoxy resin is formed into a thin film and extruded to a reinforcing substrate, and the substrate is coated with the resin. The composite laminate of the reinforced substrate and the matrix resin are introduced into the multi-belt press 21 and heated while applying a planing pressure (that is, the pressure applied by a planer or planers). During this stage, as the composite passes through the multi-belt press, the matrix resin melts and penetrates into the interior of the reinforced substrate to prepare a prepreg containing a matrix resin in a semi-solid state. However, even the method using the device as shown in Fig. 27 still has the following problems: When the consumer cooperative of the Intellectual Property Bureau of the Ministry of Economy printed and used the multi-belt press, the planing pressure was applied to the two sides of the compound, so that Air bubbles do not easily escape from the interior of the composite and remain, thereby forming voids within the prepreg. In particular, when the substrate has a larger mesh so that the resin does not have sufficient impregnation into the matrix, voids are more likely to be left. In addition, because the planing pressure is applied to the two sides of the composite, the matrix resin on the strengthened substrate may diffuse toward the two edge portions of the composite | so that the adjustable range of the amount of matrix tree contained in the substrate is narrow, and it is difficult to manufacture Large matrix resin content prepreg. Also, the amount of matrix resin in one portion of the prepreg may be different from that in the other portion, and the surface smoothness of the prepreg may be insufficient. DESCRIPTION OF THE INVENTION Therefore, an object of the present invention is to provide a prepreg manufacturing method for overcoming the above-mentioned problems, in which the resin is fully impregnated with rheological resin, and the remaining space is in accordance with Chinese national standards ( CNS) A4 specification (210 X 297 mm) Printed by the Shellfish Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs, 28 3at B7 Five 'invention description (3) The gap is very small, and the surface smoothness and uniformity of the resin impregnated are improved. It is also an object of the present invention to provide a device capable of realizing a method for manufacturing such a prepreg. The present invention provides a method for manufacturing a prepreg, which is to continuously supply a sheet-like fabric material (such as fibers, fiber yarns, and fiber bundles) as a reinforcing substrate, and supply a thermosetting resin as a matrix resin in a molten state thereto. The substrate, and then the resin is heated. The method includes the following steps: (a)-a first coating step, in which a matrix resin is applied to a surface of a reinforced substrate using a first die coater, and The amount of the matrix resin applied is equal to or greater than the amount of the matrix substrate that can accommodate the matrix resin in all of its voids; (b)-a first heating step in which the matrix substrate-reinforced substrate is a first non-contact heating element It is heated, and the matrix resin is dipped into the interior of the reinforced substrate to obtain a composite laminate of the matrix resin and the reinforced substrate; (c) a second coating step, wherein the matrix resin is further coated with a second die coater; At least one surface of the composite stack, and (d)-a second heating step, wherein a second non-contact heating element is used to coat the coated substrate tree in step c An amount of the composite laminate is heated to make the matrix resin semi-hard * According to the method for manufacturing a prepreg according to the present invention, the matrix resin is supplied to the reinforcing substrate in a first coating step, and the amount supplied at least substantially all of the reinforcing substrate The voids are filled with matrix resin. The voids include voids in the reinforced substrate. For example, the void includes the space between fibers (ie, micro-gap) and fiber bundles. The paper size of this paper is applicable to the China National Standard (CNS) A4 specification (210 × 297 mm) -6-^^ ------ *, Ό ^ — (Please read the notes on the back before filling this page) JB1 Order _ Printed by the Consumer Consumption Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs, 3. -9 --- βζ ___— ύ_ V. Description of Invention (4) (Ie large voids). In general, the sum of the volumes of micro-gap is the sum of the volume of larger voids. In fact, the amount of matrix resin that can be contained in all voids of the reinforced substrate can be determined using the thickness and mesh of the reinforced substrate. For example, the sheet area of the sheet-shaped reinforced substrate is CA (m2)], the thickness is [B (m)], the mesh is [eg / m 2], and the net density of the material forming the reinforced substrate is [D (g / cm3)] At this time, the amount of resin contained in all the voids of the reinforced substrate can be calculated by the following equation: E = AxB— AXC / D. So, the amount of a E a is equivalent to the minimum amount of matrix resin applied in the first step. In the first heating step, the coated resin is heated so that the resin is embedded in substantially all the voids of the reinforcing substrate. The first heating step reduces the viscosity of the matrix resin and increases the degree of penetration of the matrix resin into the interior of the substrate through capillary action. The amount of matrix resin may be greater than the minimum amount in the first step. During the first heating step, since nothing is in contact with one surface of the coated matrix resin or one of the uncoated surfaces of the reinforced substrate (although the surrounding atmosphere (such as air) Contact with these surfaces), so the foam easily escapes from the inside of the resin and the reinforced substrate. The matrix resin is further supplied to the composite surface in the second coating step, and is heated in the second heating step to reduce the viscosity of the coated matrix resin. The foam further escapes from the inside of the resin and the reinforced substrate, at the same time, it is semi-hardened, and finally Made of prepreg. In the first coating step, if the reinforcing substrate does not move vertically, but for example, it moves substantially horizontally, the matrix resin can be coated on the top surface (or side) of the reinforcing substrate. As mentioned above, apply matrix resin to A7 X in the first coating step. Please read the precautions on the back before filling in this page.) Applicable to China National Standard (CNS) A4 specification (210 X 297 mm) Yin Ben, Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 1 4 28 3 ^ 4 3 ^ A7 _ ___B7_______ 5. Description of the invention (5) The bottom surface of the substrate side). The second coating step may apply a matrix resin to the bottom side and / or the top side of the reinforcing substrate. In a preferred embodiment, the first coating step solidly coats the resin on the top side of the reinforced substrate, but the second coating step coats the matrix resin on the bottom side. There is also a method for manufacturing a The impregnation device includes a loosening component of a reinforced substrate; a reservoir, which functions to continue the process when a reinforced substrate feed roller is replaced; the storage tanks respectively maintain a main component (A) and a hardener The component (B) and a hardener component (C) are in a liquid state at a predetermined temperature; the metering components respectively distribute the components from the tanks; a mixing component that mixes the measured components to prepare a matrix resin A first die coater that applies a matrix resin to a reinforced substrate; a first non-contact heating element that impregnates the reinforced substrate with the matrix resin to form a composite laminate; a second die coater, Apply the matrix resin to the composite laminate; _ A second heating component to semi-dry the matrix resin contained in the composite laminate: a pressure roller assembly that presses the reinforced substrate impregnated with the matrix resin and makes it smooth Keeping the reinforced substrate at a predetermined temperature; and a winding roller, the prepreg obtained by winding, or a cutting assembly, the prepreg obtained by transverse cutting. As described in the above-mentioned method of the present invention, use the device just described '(CNS) (210X297 / > *) ^ 8 ~-(Please read the precautions on the back before filling this page) k' · 434283-, ¾ A7 _ Factory X * B7 V. Description of the invention (6) The matrix resin is uniformly impregnated into the reinforced substrate through the first heating element. 'The foam escapes from the inside of the reinforced substrate including the matrix resin through its surface. In addition, the second coating component further supplies the matrix resin to the surface of the composite laminate, and the second heating component manufactures the prepreg, and the matrix resin is uniformly and semi-hardened throughout. DETAILED DESCRIPTION OF THE INVENTION In a preferred embodiment of the method of the present invention, the matrix resin includes an epoxy resin component as a main component, a resin component (B) containing at least one hardener, and a co-hardener (C). The ingredients remain in a liquefied state "All ingredients are mixed together and supplied to the first and / or second die applicator. In this way, since the epoxy resin component (A) does not contain a hardener and a hardener before mixing, it does not contain a hardening situation before mixing, and the resin can be stored stably for a long time. Furthermore, since the resin component (B) does not contain a hardener. Therefore, the hardener does not react with the hardener, and can stably maintain its quality. That is, in the above-mentioned embodiment, each component can be stably stored for a long time. In this way, there is no need to worry about the storage time of the matrix resin. Printed by the Central Standards Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperative (please read the notes on the back before filling this page). In a preferred embodiment, when the ingredients are supplied from a storage tank to a mixer and all ingredients are mixed together, Its viscosity is between 5 0 and 5 0 0 0 centipoise (cP s). In addition, it is preferable that the component transferred from the mixer to the mold coater as a component of the matrix resin has a viscosity between 5,000 and 50,000 cP s. When the viscosity is less than 500 c P s, the matrix resin can easily pass through the reinforced substrate and be deposited on a back roller. For viscosities greater than this paper size, the Chinese Standard for Household Standards (CNS) A4 (2 〖0X297mm） * 9-A7 B7 A ^ 3 4 | g 3 V. Description of the invention (7) 5 0 0 0 0 〇〇c P At s, the covering performance of the matrix resin on the reinforced substrate may be insufficient to ensure uniform coating on the reinforced substrate. The components or mixtures should preferably be filtered to exclude any impurities (such as dust or gel from the surrounding atmosphere). Thing). To filter well, it should have a specific viscosity. In a preferred embodiment of the method of the present invention, in addition to the minimum amount of resin, the amount of matrix resin applied in the first coating step also includes applying the matrix resin to the surface of the reinforced substrate (ie, the coating side) to form a coating. The amount of coating is required, and the second coating step applies a matrix resin to one surface (uncoated surface) of the reinforcing substrate, which surface is opposite to the surface coated with the matrix resin in the first coating step. The amount of resin applied in the second coating step corresponds to the amount required to form a coating layer on the uncoated side in the first step. In this embodiment, since the first coating step not only impregnates the reinforced substrate with the matrix resin but also forms a coating layer on one side of the reinforced substrate, the second coating step is easy to implement, and only another coating needs to be formed to strengthen the substrate. The other side of the substrate is sufficient. In a preferred embodiment of the method of the present invention, the amount of the matrix resin applied in the first step is equal to the minimum amount of the matrix resin, and the second coating step applies the matrix resin to the reinforcing substrate (ie, the composite laminate). On either side, the coating amount is sufficient to form a coating layer on either side of the reinforced substrate. In this embodiment, 'substantially the same application conditions can be applied to the second coating step to form a coating layer on two sides, and the thickness of the matrix resin coating layer on one side of the reinforced substrate is the same as that on the other side. 》 In a preferred embodiment of the method of the present invention, the first heating step further includes an additional heating step at the inlet and / or outlet of the first heating component: -1Η ----- ^ k-1 (Please read first (Notes on the back fill in this page)

Si

1, 1T Printed by the Central Standards Bureau of the Ministry of Economic Affairs, Consumer Cooperatives This paper is printed in accordance with China National Standards (CNS) A4 specifications (210X297 mm) 10 Printed bags by the Central Standards Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperatives ^ 3428 3 (8) In this embodiment, the additional heating step can prevent the temperature at the inlet and / or outlet from decreasing, extending the predetermined temperature holding pressure (this pressure can be regarded as an effective infiltration zone) and ensuring that the matrix resin is adequate Impregnation into the reinforcing substrate β In a preferred embodiment of the method of the present invention, a second heating step is performed, and the heating temperature is increased toward the outlet of the second heating component. In this embodiment, due to the heating of the inlet portion of the heating component The temperature is low, so the viscosity of the unhardened matrix resin will not be excessively reduced at a lower temperature, and the matrix resin will not pass through the reinforced substrate. In this way, there is no re-relaxation of the self-reinforced substrate. And, the temperature increases toward the outlet This causes the matrix resin to accelerate to harden. In a preferred embodiment of the method of the present invention, it further comprises a step, wherein after the second heating step, the bonding Heated composite laminate compaction β In this embodiment, the pressure of the compaction roller makes the thickness of the prepreg uniform and ensures the surface smoothness of the prepreg. In the comparative embodiment of the method of the present invention, it further includes A step in which the thickness of the reinforced substrate is detected before the reinforced substrate is supplied to the first mold coater, and the gap between the first mold coater and a backing roller is adjusted based on the detected thickness of the reinforced substrate. In the embodiment, for example, when a reinforced substrate is supplied and its end portion is connected or overlapped with the beginning portion of another reinforced substrate on a backup roll in a continuous manufacturing method, the double thickness of the overlapped portion is detected and the first is increased. The gap between the die coater and the backing roller smoothly passes through the gap without being pinched. In this way, the reinforcing substrate can be prevented from breaking, and the prepreg can be smoothly and continuously manufactured. In the method of the present invention In a preferred embodiment, for example, depending on the thickness of the substrate, the mesh and / or the weaving density (these factors affect the gas of the substrate (or: -IM ----- r'rII.., V, please read the back Please fill in the matters needing attention Page) The size of the paper used for this edition is in accordance with the Chinese National Standard (CNS) A4 (210X297 cm) -11-A7 B7 When the number of channels is appropriately increased or decreased, the warm resin of the gentle roller can be adhered to the invention method to strengthen The substrate has a high degree of resin in the first heating matrix. The weaving density is not too high to prevent it from being avoided by the back-to-back rollers. In the preferred embodiment of the thickness and steps, the temperature adjustment and adjustment methods are the same. On the substrate side (that is, equivalent) The amount on the top side of the reinforced substrate is substantially equal to the amount on the bottom side. 5. Description of the Invention (9) Air) Through) Adjust the temperature of the first coating to lower the air quality, mesh cover and back Therefore, the substrate is adjusted by the substrate tree (for example, appropriately adjusted. Here, the temperature of the solid roll is extended to the viscosity of the mold coater and the backing roller used in the step of strengthening the matrix resin. The temperature is adjusted in this embodiment. At the same time, the thickness of the substrate is strengthened. At the same time, the die coating is changed to prevent the matrix resin from extending to the back-up roller. If it is on a roller, and the reinforced substrate can be prevented from being affected by the air permeability mesh and / or weaving density of the reinforced substrate in the examples) The heat temperature can be increased or decreased by the viscosity of the matrix resin. In this embodiment, the amount of the first coating side of the top side of the unified matrix resin is unified> 俾-(Please read the precautions on the back before filling this page) The same is true for each part of the longitudinal direction, so the better practical part of the method of strengthening the top side of the board is different). At the same time, the erbium matrix will cause the upper part and the bottom edge of the substrate to be better heated in the transverse direction of the substrate of the hair reinforcement substrate. Instead, it can be unified. In the example, each of the first portions is heated in this embodiment and has a lower gas permeability. The resin is stretched to a strong thickness even if the coating is thickened on the substrate side. The heating step individually pairs (ie, the heating temperature, the portion that strengthens the permeability of the substrate, ie The amount of the bottom side of the predicable substrate is substantially equal to the degree of air permeability in the lateral direction. The portion usually has a strong air permeability. In the embodiment • A test step is further included. The paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -12-Duyin Consumer Cooperation Du Yin, Central Bureau of Standards, Ministry of Economic Affairs «. V. Description of the invention (10). It is between the first heating step and the second coating step 'to detect the matrix resin infiltration Strengthen the inner state of the substrate (ie, there are gaps) 'and adjust the heating temperature of the first heating step to reduce the gaps. The temperature adjustment is to increase the temperature and reduce the space by reducing the matrix resin In this embodiment, because the voids are reduced, the matrix resin can be fully impregnated into the reinforced substrate. In a preferred embodiment of the method according to the present invention, it further includes a detection step in the first heating step and Between the second coating step 'the amount of detection of the matrix resin extending to the side of the reinforced substrate (ie, not the first coating side)' This side and the coating side in the first coating step (ie, the first coating side) In contrast, the heating temperature in the first heating step is adjusted to uniformly extend the amount of matrix resin on the bottom side. The temperature adjustment is performed in such a manner that the amount of matrix resin extended to the bottom side increases as the temperature increases. In this embodiment, the matrix The uniformity of the resin extension is improved through temperature adjustment, and the thickness of the resin coating layer on the top side and the bottom side of the reinforced substrate is substantially uniform. In a preferred embodiment of the method of the present invention, the reinforced substrate is supported by a back roller. Support, the backing roller is rotated in a direction opposite to the moving direction of the reinforcing substrate in the second coating step. In this embodiment, since the rotating direction of the backing roller and the substrate are The moving directions are opposite, so substantially no matrix resin is accumulated between the backing roller and the reinforcing substrate, and the reinforcing substrate supports the quantitative matrix resin. In the above embodiment, a reinforcing substrate is preferably supported by a backing roller, and this The peripheral speed of the reverse rotation of the back roller in the second coating step is greater than the moving speed of the reinforced substrate, the 俾 matrix resin is smoothly applied to the reinforced substrate, and the resin coating layer formed in the second coating step becomes Flat and smooth. 丨, -1 ^? * II ~ Please read the notes on the back before filling out this page.) The size of the paper is applicable to the Chinese National Standard (CNS) M specifications (210X297 mm) -13- Central Ministry of Economic Affairs Printed by the Standards Bureau Consumer Cooperative A7 B7 V. Description of the invention (11) In a preferred embodiment of the method of the present invention, in the second coating step, the substrate is forced downward by the pressing roller before and after the backing roller.俾 Make sure that the contact area between the reinforced substrate and the back roller is constant, and smooth the resin coating layer formed in the second coating step. In a preferred embodiment of the method of the present invention, between the second coating step and the second heating step, one or both surfaces of the reinforced substrate are rotated from one or more directions in a direction opposite to the direction of movement of the reinforced substrate In the preferred embodiment of the method of the present invention, in a first coating step, the matrix resin is coated on one of the reinforcing substrates. When the reinforcing substrate is transferred substantially laterally, the matrix resin is applied to the top side of the reinforcing substrate in the second coating step. In this embodiment * since the matrix resin is coated on the bottom side of the substrate, under the effect of gravity, excessive infiltration of the matrix resin toward or through the top side can be avoided, and the resin coating layers on the top and bottom sides of the substrate are strengthened The thickness can be unified. In a preferred embodiment of the method of the present invention, the second heating step heats each of the plurality of longitudinal portions of the reinforced substrate including a matrix resin (ie, a composite laminate) individually (ie, the heating temperature is along the width direction of the substrate). different). In this embodiment, when the hardness of each part of the matrix resin is different, the higher hardness part is heated to a higher temperature to reduce the hardness. In this way, a prepreg with uniform hardness in the width direction was prepared. In a preferred embodiment of the method of the present invention, at least the first or second heating step is performed to vertically transfer the reinforced substrate, and the influence of the gravitational force along the thickness direction of the reinforced substrate is minimized, so that the matrix resin can be uniformly impregnated into the substrate. < Please read the notes on the back before filling this page) narrative · The size of the paper of the book 逋 The standard of China National Standards (CNS) A4 (210X297) 嫠 -14-4 3 4 283, V. Description of the invention ( 12) Description of specific embodiments With reference to the drawings, the present invention will be further described in detail by means of an embodiment of a reinforced substrate impregnated with a matrix resin. Fig. 1 is a schematic view showing a first embodiment of a device 'the prepreg manufacturing method of the present invention is performed by the device', and Fig. 2 is a schematic view showing states of a matrix resin and a reinforcing substrate in the steps of this method. As shown in Fig. 1, this device is configured so that the sheet-like fabric-reinforced substrate 1 is continuously fed from a release roll 9a 'and the matrix resin in a molten state is supplied to a reinforcing substrate and heated to form a prepreg. Specifically, the method for manufacturing the prepreg 38 is performed in the following steps (a) a first coating step, in which a first mold is used. The applicator 3 applies a matrix resin 2 to one of the reinforcing substrates 1 Side, such as the top side 50, and the coating amount of matrix resin is at least equal to the amount of the matrix substrate to accommodate the matrix resin in all its voids; printed by the Bayer Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs «. (B) first heating A step in which the reinforced substrate 1 is heated by using the first non-contact heating component 4 and the coated matrix resin 2 is impregnated into the substrate to obtain a composite laminate of the matrix resin and the reinforced substrate; (c) a second coating step Wherein a second die coater is used to further apply the matrix resin to at least one surface of the composite laminate 37, such as the bottom side 5 of one of the substrates; and (d) a second heating step, wherein a second non-contact type is used The heating unit 6 heats the composite laminate 37 containing the matrix resin applied in the second coating step to make the matrix resin semi-hard. This paper size is applicable to China National Bare Standards (CNS) 8 4 ^ _ (2 丨 0 > &297; 4, ΠδΤ Printed by Shellfish Consumer Cooperative, Central Standards Bureau, Ministry of Economic Affairs 434283 5. Explanation of the invention (13) The second diagram The various states of the matrix resin 2 and the reinforced substrate 1 in the above steps are illustrated. In the second figure, the reinforced substrate composed of the bundle 5 3 of yarns 5 2 is defined by a top side 50 and a bottom side 51. It should be noted that 'top side 50 or bottom side 51 does not really exist, but is a hypothetical surface defined by a plane including the outermost part of the reinforced substrate side. Thus, between' two sides 50 and 51 ' No. The space between the yarns 5 and 3 is equivalent to the volume of the matrix resin that can be held by the substrate as much as possible. Figure 2 (a) shows the state after the first coating step, where the matrix resin 2 is coated. Attached to the top side of the reinforced substrate 50 0. When the reinforced substrate 1 and the matrix resin 2 are heated by the first heating element 4, the matrix resin 2 mainly penetrates into the interior of the reinforced substrate 1 by capillary action, and the reinforced substrate 1 is completely impregnated with the matrix resin. 2 (俾 is formed by a reinforced substrate and includes a matrix resin 41 and a tree on the top side of the substrate 50 Composite layer with coating 40), and this state corresponds to that shown in FIG. 2 (b). In the embodiment shown in FIG. 2, the amount of matrix resin supplied to the reinforcing substrate is greater than the minimum amount described above,俾 The coating layer 40 is formed on the top side 50 of the reinforced substrate 1. It should be noted that the maximum amount of matrix resin that can be accommodated in all the voids of the reinforced substrate is equivalent to the removal of the yarn 5 3 bundle 5 2 in the outer portion 4 1 Resin amount 0 When the amount of matrix resin supplied to the reinforcing substrate is the minimum amount described above, substantially no coating layer 40 is formed on the first coating side 50 of the reinforcing substrate 1, and only a portion 41 is formed. Next, The second coating step applies a matrix resin to the opposite side 51 of the first coating side (ie, the bottom side) of the reinforcing substrate 1 to form a coating layer 42 as shown in FIG. 2 (c). In this embodiment, the first coating step is combined with the matrix resin coating of the first coating step, so that the two coating layers 40 and 42 are formed on the two sides 50 and 51 of the reinforcing substrate 1. Generally, the Chinese paper standard is applicable to this paper size (CNS) A4 size (210X297 male) -16- (Please read the precautions on the back before filling this page) Order the central standard of the Ministry of Economic Affairs Printed by Zhunzhou Beigong Consumer Cooperative Co., Ltd. 434 ^ 8 3 ^ __ V. Description of the invention (14) In terms of 'resin content, the manufacture of prepregs is defined, which is equivalent to strengthening the substrate contained in the substrate and inside it The amount of resin. In this way, the resin content of the embodiment shown in Figure 2 is equal to the total matrix resin of 40 + 4 1 + 4 2 (excluding the reinforcing matrix 1). When the resin content is expressed as a percentage, it is prepreg. The total weight is the base. When the resin content is expressed per unit area, the content unit is gram resin / m 2 prepreg. Note: The mesh of the fabric (such as glass cloth) used to strengthen the substrate is too large and / or the viscosity of the matrix resin 2 When it is so low that the matrix resin penetrates extremely fast, a non-preferred situation occurs, in which the outer coating layer 4 except the coating layer 40 may be formed in the first coating step. It should also be noted that there is no clear boundary between the coating 40 or 42 and the reinforced substrate with the base resin 41. For convenience, the prepreg or its precursors are hypothetically divided into these parts. The second heating step (d) uses the heating component 6 to heat the composite with the coating (4 ◦ and 4 2), and the 俾 matrix resin 2 is appropriately semi-hardened (that is, hardened to level 13) to obtain hardening to a certain degree Prepreg. The first and second heating elements 4 and 6 are non-contact type. "Reinforced substrate 1" When the matrix resin is impregnated throughout the first heating step, the reinforced substrate (or composite) does not touch anything, so that its top side and bottom Both sides are free sides, so that the air bubbles inside the matrix resin and / or the reinforced substrate can easily escape through the free sides. In this way, the prepared prepreg has fewer voids, and preferably no voids remain in it. In addition, in the second heating step, the air bubbles easily escape from the inside due to the similar mechanism as described above, and the prepreg produced by the grate has fewer voids. And because the impregnation is carried out uniformly, the prepreg prepared is finished ,, ------------.--------. Please read the precautions on the back before filling this page ) Order, _s This paper size applies to China National Standard (CNS) A4 specification (2 丨 0X297 Gongao) -17-Printed by the Consumers' Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs p..0 ffut

4 3 4 28 3 fA

丨, Li I _! ____ B7-… · ". __ 5. Description of the invention (15) The prepreg has a smooth surface and an even resin content. An important feature of the present invention is that since the substrate 1 is almost entirely and preferably substantially entirely impregnated with the matrix resin in the first coating step, the first heating element 4 is of a non-contact type. Any fabric material such as glass cloth can be used as the reinforcing substrate 1. Other sheet materials can also be used. For example, woven or non-woven fabrics made of various materials such as inorganic fibers or organic fibers (such as aromatic polyamide fibers, aromatic polyester fibers, and carbon fibers) can be used. It is also possible to continuously feed the fiber bundles as described above from the rollers to form a weft-free reinforcing substrate. As the matrix resin 2, various thermoplastic resins such as epoxy resin can be used. There is no particular limitation on the resin without adversely affecting the prepreg, and further resins such as the following resins, unsaturated polyester resins, polyurethane resins, vinyl ester resins, acrylic resins, and phenolic resins can be used. 〇The prepregs prepared according to the present invention are generally used for various coatings, such as for manufacturing multilayer circuit substrates. The glass / epoxy prepregs produced by the present invention can be used on this substrate. However, the prepreg of the present invention can be used not only for manufacturing related circuit products, but also for products in other fields such as decorative sheets or structural laminates. The production of the prepreg of the present invention will be further explained in detail by using an example of a prepreg that substantially contains glass cloth as a reinforcing substrate and epoxy resin as a matrix resin, but the present invention is not limited to this example. In FIG. 1, the feed-out module 15 continuously supplies glass cloth from a release roller 9 a as a reinforcing substrate. Can be used in thicknesses of 0. 0 3 and 0. 2 ΪPlease read the notes on the back before filling in this page} T— n «

Order --------- IV This paper size is applicable to China Solid National Standard (CNS) A4 specification (210 X 297 mm) -18-.V.,:,. Ί · ν. .〆; A7. ········. * -U / ft * V. Description of the invention (16) Glass cloth with a mesh size between 5 and 250 g / m2. With this glass cloth, the resin content can be adjusted between 40 and 75% depending on the weight of the prepreg to be manufactured. The storage tanks 7a, 7b, and 7c contain components (A), (B), and (C) for the matrix resin 2, respectively. These ingredients are distributed to the mixing module 12 via the metering members 1 1 a, 1 1 b, 1 1 c at a predetermined rate. These ingredients are mixed in a stirring unit 12 to prepare a matrix resin 21, and the matrix resin 2 is supplied to a first mold coater 3 and a second mold coater 5 and applied to a reinforcing substrate 1. The first mold coater 3 was used to apply the matrix resin to the surface (that is, the top side 50) supported by the glass cloth 1 as the backing roller 14a. The second mold coater 5 is used to apply the matrix resin 2 to the backing roller 1 4 a. The backing roller 1 4 a supports the reinforcing substrate 1 and the coating side is made (by the first mold coater). Then, the coated resin is transferred to the opposite surface of the reinforcing substrate 1 (that is, the uncoated bottom side). To coat the matrix resin, the first die coater 3 may be a pump transfer die type, including a built-in pump transfer mechanism for metering, and the second die coater 5 may be a T-die type. Contains a pump transfer mechanism, which is located outside. However, the die coater is not limited to the above embodiment type, and other die such as a coathanger die, a fish tail die, or a fan die may be used. The amount of the matrix resin applied by the first applicator 3 may be 70 g 90% of the total resin applied to the entire substrate (resin content of the prepreg) 'times 1J of resin (ie, 30 to 10%) can be coated by the second die coater 5 丨 2 ° This paper size is applicable to China National Standard (CNS) A4 (210x297 mm) -19-Please read the note on the back first? Please fill in this page for further details.) Binding -------- 嗥 Printed by the Consumer Property Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, printed by the Central Standards Bureau of the Ministry of Economic Affairs, and printed by the Sheller Consumer Cooperative ^ 4 28 3 __s' V. Invention Description The compaction roller 8 presses the composite 39 containing the reinforced substrate 1 impregnated with matrix resin and the matrix resin coating applied to the inside and outside of the substrate 1 to unify the composite 39 and smooth the surface. The compaction roller 8 is maintained at a predetermined temperature at which the matrix resin can be softened (semi-cured state), and is located on the exit side of the second heating unit 6 in the embodiment shown in FIG. In the second heating step, the compaction roller 8 may be provided inside, instead of being provided on the exit side of the second heating module 6, or may be additionally provided. In this way, the second heating unit 6 can be divided into at least two parts, and the compaction rollers can be between these parts, and a plurality of pairs of compaction rollers can be set at different positions. The reinforced substrate 1 impregnated with the matrix resin 2 is hot-pressed with the above-mentioned compaction roller, and the thickness of the prepared prepreg 38 is uniformed and its surface is smoothed. The prepreg 3 8 is continuously wound by a winding roller 13 located behind the compacting roller 8. Instead of the winding roller 1 3, a cutting unit may be provided. This cutting unit cuts the prepreg transversely to produce a prepreg sheet having a predetermined length. The component (A) contained in the storage tank 7a is an epoxy resin used as a main component, and contains at least one hip of a resin such as bisphenol. The component (B) contained in the storage tank 7 b contains a hardener (such as dicyandiamide), which is mixed with a less reactive resin to improve its metallicity at the storage temperature. The storage in the storage tank 7 b Ingredient (c) contains a hardening agent such as an imidazole compound. The components (A), (B) and (C) are each maintained at a predetermined temperature, and their fluid states are stably maintained. Finely mix these ingredients and then bake them to the first mold coater 3 and / or the second mold coater 5 »In one embodiment, the storage tank 7 a contains a liquid resin having a temperature of about 65 ° C The composition is used as the main ingredient, which contains a bisphenol epoxy resin (this paper size applies to the CNS > A4 specification (210x297 mm) -20-(Please read the note on the back before filling in this page)

4 3 428 3 V. Description of the invention (18) as the main component), a desertified epoxy resin and a multifunctional epoxy resin 'storage tank 7 b contains a temperature of about 40 ° C containing dicyandiamide hardener Epoxy resin; and the storage tank 7c contains an imidazole-based hardener at a temperature of about 4 Ot. These ingredients (A), (B) and (C) are mixed by a fixed mixer (24 stages, average dwell time: -minutes) used as a mixing module 12 and then are supplied to remain at 60 ° C die applicators 3 and 5. When the components (A), (B), and (C) are stored and supplied as described above, they do not even react when the wave is raised to a liquid state, so they can be stored for a long time, thereby improving manufacturing efficiency. Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling out this page) Although not shown, the ingredients can be filtered on the way to the mixing module 12 or the mixed ingredients (to be The coated matrix resin) can be filtered on the way to the mold applicators 3 and 5 to remove impurities such as ash or gel. The removal of impurities can promote uniform infiltration of the matrix resin and produce a prepreg with less impurities. The viscosity of each component or matrix resin should be between 500 and 500000 cPs (centipoise), and more preferably between 10,000 c Ps. Filtration is preferably performed with the composition or matrix resin within this specific range. When the viscosity is at least 5 0 c P s, the matrix resin does not excessively pass through the reinforcing substrate, so that a large amount of matrix resin hardly extends to the opposite side (ie, the bottom side) of the reinforcing substrate opposite to the coating side on. Thus, the matrix resin hardly adheres to the back-up roller, and this can suppress the troublesome operation caused by the adhesion of the matrix resin. In addition, when the viscosity does not exceed 5000 c c s, the matrix resin usually has sufficient coverage to ensure uniform coating on the reinforcing substrate 1. This paper size applies the Chinese National Standard < CNS) A4 size (210X297 mm) · 21-43423 3 is, A7 B7 d 28 3 ^ V. Description of the invention (彳 9) Figure 3 shows the manufacturing of the invention A second embodiment of an apparatus for a prepreg method. (Please read the precautions on the back before filling this page.) In the device shown in Figure 3, the backing roller 14b is located on one side of the reinforcing substrate 1, and this side is the same as the first coated by the first die coater 3. One coating side is the same side, and the second die coater 5 is on the other side, and the second die coater 5 is directly in contact with the reinforcing substrate 1. In this way, the second die coater 5 directly applies the matrix resin 2Applied to reinforced substrate 1 »These situations are different from those shown in Figure 1 < · Printed by Shellfish Consumer Cooperative of Central Bureau of Standards, Ministry of Economic Affairs, as described above, matrix resin can be applied to reinforced substrate 2 . One of the methods: one is to apply the matrix resin 2 to the backing roller 14b, and then transfer the matrix resin 2 to the reinforcing substrate 1: the other is to directly apply the matrix resin to the reinforcing substrate 1. The coating method is usually selected based on various factors such as ready-made space and facility costs. In particular, once the matrix resin is coated on the backing roller 1 4 b, the gap between the mold coater 5 and the backing roller can be precisely controlled. The amount of matrix resin applied can be easily controlled. In this case, The rotation direction of the backing roller 1 4 b may be opposite to or opposite to the moving direction of the reinforcing substrate 1. Preferably, the rotating direction is opposite to this moving direction. FIG. 4 is a schematic view showing the third device of the prepreg manufacturing method. Example: Different from the example shown in FIG. 1, two second die applicators 5 are used in the device shown in FIG. 4, so that a second die applicator 5 is located on a reinforced substrate (ie, a composite laminate). 3 7). In this way, the matrix resin 2 is coated on the two sides of the substrate. In this inert shape, the first coating step applies the basic paper size to the Chinese National Standard (CNS) A4 specification (210X297) in a minimum amount. Mm) 22 · 4 28 3

A A7 B7 V. Description of the invention (20) The quality resin is coated on the reinforced substrate. The embodiment shown in FIG. 4 uses two substrates to clamp and carry the reinforcing substrate and transfer the matrix resin (coated by the die coater 5) to the backing roller 14b of the reinforcing substrate. When the coating method of the embodiment shown in FIG. 4 is used, the matrix resin is coated on the two sides of the reinforcing substrate 1 under the same conditions, and it is easy to uniformize the thickness of the two layers of the matrix resin on the two sides of the reinforcing substrate. The coating as described above with reference to FIG. 4 can be performed, for example, as follows. The reinforced substrate 1 is a glass cloth with a thickness of 180 micrometers and a mesh size of 210 g / m 2, and the coated body is an epoxy resin as described above with reference to FIG. 1. The first die coater 3 applies a matrix resin having a viscosity of about 6 0 0 c P s. The amount of the matrix resin applied by the first die coater 5 is 80% of the content of all the coated matrix resins in the manufacturing method, and this amount (that is, 80%) is printed by the Consumers' Cooperative of the China Standards Bureau of the Ministry of Economic Affairs. .,! — 一 ------ r pack—1 C *-(please read the note on the back ^ > before filling out this page). It is equivalent to a resin content of 1 2 2 g / m 2, and This is equal to the minimum amount of matrix resin β used for the glass cloth. Next, the glass cloth passes through a far-red radiation heating furnace used as the first heating element 4 for 30 seconds, and the matrix resin 2 penetrates the glass cloth. The extra matrix resin 2 having a viscosity of 0 0 c P s is coated on the top and bottom sides of the glass cloth by the second die coater 5. 10% of the total amount of the matrix resin applied in the manufacturing method is applied to each side, and the amount of the matrix resin is equivalent to a resin content of 15 g / m2 each. The reinforced substrate 1 containing the matrix resin 2 is semi-hardened (to a so-called grade B) by a second heating unit 6. FIG. 5 is a schematic view showing a state of the reinforcing substrate 1 and the matrix resin 2 in the above coating using the apparatus shown in FIG. 4. Figure 5 (a) is equivalent to the state after the matrix resin 2 is applied through the first coating step. This paper size is in accordance with China National Standard (CMS) A4 (210X297 mm) · 23 · 40 ^^ 8 3 A7 Free _ '_ B7 ~ — One… One_ 5. Description of the invention (21) ▲ (Please read the precautions on the back before filling this page) The figure shows the matrix resin 2 on the top side of the reinforced substrate 1. When this substrate passes through the second heating element 4 and is heated by it, its state is changed as shown in Fig. 5 (b). It should be noted that the amount of the resin applied in the first coating step is the minimum amount, and a non-matrix resin layer is formed on each side of the substrate. However, the third coating step coats additional matrix resins on both sides 50 and 51 of the substrate. As shown in FIG. 5 (c), two matrix resin coating layers 40 and 42 are formed on the two substrates. side. In any of the above-mentioned and later methods, a heating element is added to the inlet and / or outlet of one of the heating elements 4 most. This additional heating element prevents the heating temperature from increasing at the inlet and / or outlet of the first heating element 4, and the predetermined temperature band maintained by the first heating step can be extended, thereby causing full infiltration of the matrix resin. For the example of adding a heating element, a near-infrared heater that emits radiation having a wavelength of 0.75 to 2.0 micron may be provided at the inlet and / or outlet of the first heating element 4, and the substrate is heated by the heater for five times. Seconds. In this case, another part of the first heating element may be a far-infrared heater emitting rays having a wavelength of 25 to 5000 micrometers. Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Figure 6 is a chart showing the temperature distribution of the first heating module (far infrared heater) with additional heating modules at the inlet and outlet of the first heating module 4. For comparison, a heating element is not shown in this table. The first heating temperature in both cases was set at 100 ° C. In this table, a horizontal axis refers to the time when the first heating element 4 enters, corresponding to the longitudinal position of the heating element 4 from the entrance. Since the heating element is designed to be a row of substrates passing through the heating element for 30 seconds, a time of 0 leap seconds represents entering the heating element. At this time, the size of this paper is applicable to China National Standard (CNS) A4 (210 X 297 mm) -24- a repair -Α7 Β7 Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of the invention (22) '' 30 0 seconds are exported from the outlet. As shown in Figure 6, the set temperature is fixed at 100 ° C, and the temperature in the heating module with only the far-infrared heater and no additional heater is gradually increased to about 100 ° C within 12 seconds, At the outlet, the temperature drops to 80 ° C. When the additional heating was performed, it reached about 100 ° C within 5 seconds, and after that, the outlet was hardly lowered. One of the heaters shown in the schematic diagram in Fig. 7 can be used as a non-contact heater instead of the above far-infrared heater. This heater is a suspended heater in which a heated gas such as air or nitrogen is sprayed onto the top and bottom sides of the substrate 1 through most nozzles, and the base is suspended when the heater is supported. Any other non-contact heater such as the use of a heating medium may also be used. Fig. 8 is a schematic view showing a fourth embodiment of an apparatus for carrying out the prepreg manufacturing method. In the device shown in Fig. 8, the second heating module 6 of the device shown in Fig. 1 is divided into three parts 6a, 6b and 6c. The heating temperature of heating part 6a is the lowest, and heating temperature of heating part 6c is the highest. When the split heater is used, the temperature of the inlet part 6a is not so high. Therefore, even if the viscosity is not high, the viscosity of the molten matrix resin is not sufficiently hardened and the speed decreases. In this way, the phenomenon that the resin self-reinforces the substrate can be avoided. And because the semi-hardened resin is greatly increased in part 6 b or 6 c due to the higher temperature within it, it can effectively increase the manufacturing speed. In terms of the specific degree of semi-hardening reaction, for example, a hardening degree of about 10% can be achieved in part 6a | and a hardening degree of 50% can be achieved after passing through part 6c. The degree of hardening used here is based on the epoxy family (please read the precautions on the back before filling out this page). -------- Order. 嗥 'This paper size applies to national standards (CNS). A4 specification (210 X 297 mm) -25- 43428 3 ^ V. Description of the invention (Reaction ratio. The alternatives to the 9th and 18th are arranged in the part 6 of Fig. 9a. The thickness is equal to the uniformity of the prepreg of the first heating element 6 of the second heating element 6. The bucket moon shown in Figure 1 1 1 0 ^ A7 B7—23 0 and 1 1 are shown in Figure 8 In the embodiment shown in the compaction roller of the display device, the compaction roller 8 is also disposed between the horizontal heating and the straight heating portion 6 b. Since the degree after the portion 6 a is not high and the resin is easy to place at the place where the roller is provided Deformation ', so that the surface of the precursor prepreg is uniformed and the embodiment shown in the figure of the precursor prepreg is unified. The' two sets of compacted light 8 are sequentially arranged behind 6. The compaction roller group is added to leave The pressure of the heating element, which enhances the surface smoothness of the prepreg and its thickness. In the embodiment shown in the figure, the 'compaction roller 8 is also set at the horizontal heating part 6 a and vertical Between hot part 6.b (these examples are shown in Figures 9 and 10 at first). This example further improves the surface smoothness and thickness uniformity of the prepreg. Figure 12 shows An alternative embodiment of the feed-out component 15 of the embodiment shown in Fig. 1 is shown. The embodiment shown in Fig. 12 includes a spare roller 9 b in addition to the release roller 9 a. The glass cloth is fed from the roller 9 a After going out and then passing through the collector 12, the matrix resin 2 is coated on the glass cloth by the first die coater 3. The collector 1 2 is set so that even if the roll 9a is loosened, even if it is a spare roll 9b Instead, it is also possible to continuously feed the glazed cloth. Fig. 13 is a schematic diagram showing an alternative embodiment of the first coating step in the embodiment shown in Fig. 12. The embodiment shown in Fig. 13 There is one paper size applicable to Chinese National Standard (CNS) A4 specification (210 X 297 mm) · (Please read the precautions on the back before filling this page) -------- Order ilf — Economy Printed by a member of the Intellectual Property Bureau of the Ministry of Economic Affairs and Consumer Cooperatives-26- 4 3 ^ 28 3 fu (η. ·; L A7i ;, B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs (24) Move the gauge 2 4 'to detect the change in the thickness of the glass cloth before feeding to the first die coater 3. The gauge 24 is located on the glass cloth, between the release roller 9 a and the collector 10 ° Meter 2 4 includes a sensor 2 4 a 'to detect the thickness (or thickness change) of the glass cloth' and an amplifier 2 4 b to amplify the signal sent by the sensor 2 4 a. A glass cloth One end part overlaps and attaches to the other—the first end part of the glass cloth 'and continuously feeds the glass cloth so connected' while the gauge 2 4 is supplied to the first mold coating in the double thickness part of the glass cloth The applicator 3 is inspected before, and the gap between the first die coater 3 and the backing roller 1 4 a is enlarged by the thickness adjustment, and the overlapping part can pass through the gap smoothly without being pinched. This prevents the glass cloth from being broken by being caught. It should be noted that the displacement gauge 24 may be located below, or above or below the glass cloth. Any other sensor other than the above displacement gauge can be used as long as it can detect changes in the thickness of the glass cloth. Figure 14 shows the displacement measurement results of a double-sided adhesive 26 connecting one end portion of the glass cloth to the overlapping portion 25 formed by the beginning portion. The glass cloth each has a thickness of 180 micrometers and 2 10 g / m2 mesh. A non-contact visible light laser displacement meter 2 4 is positioned above the overlapping portion 2 5 between the release roller 9 a and the collector 10, and is measured when the portion 25 passes below the sensor 2 4 . Figure 14 (a) shows the cross section of part 25, and Figure 14 (b) shows the displacement measurement of glass cloth, where the vertical axis represents the displacement of the glass cloth, and the horizontal axis represents the position of the glass cloth (Or length) measurement corresponds to the manufacturing time of the prepreg. As shown in Fig. 14, a displacement of about 250 micrometers occurs in the overlapping portion 25. When the displacement is greater than the thickness of the glass cloth. 1 The sensor will send a signal t Please read the precautions on the back before filling this page)

-------- Order · '-------- S This paper size applies to China National Standard (CNS) A4 (2W X 297 mm) -27-434 28 3 Α7 Β7 V. Invention Explanation (25) indicates that the overlapping part 25 is about to pass, and then the signal opens the valve of a cylinder (not shown). This cylinder moves a lateral forward or backward, and the applicator 3 moves backward. Actually, The gap between the first die coater 3 and the backing roller 14a can be increased to about 100 mm. As a result, the overlap portion having a thickness of 430 m can be clamped through the gap. A C C D camera can be used instead of the displacement gauge, or as an additional component outside the displacement gauge to detect the overlap. When using a C C D camera, attach a black belt of an appropriate size to the overlapping part. The C C D camera can capture the part with the black belt. This photo continues to use a personal computer for two-bit processing (ie, two-bit photos), and identifies the black belt and the overlapping part 2 5 »Using the device shown in Figure 1, the first step is performed under various conditions of prepreg manufacturing A coating step experiment (examples 1 to 5 and comparisons 1 and 2) 'and the results are shown in Table 1 below: (Please read the precautions on the back before filling out this page), binding. Order-Central Ministry of Economics Bureau Bayer Consumer Cooperatives Yinjia-28- This paper size uses the Chinese solid standard (CNS) A4 specification (210 × 297 mm) 434.28 3 ^ A7 B7 V. Description of the invention (26) The Ministry of Economic Affairs Central Standards Bureau staff consumer cooperatives printed Tabulation 1 Sample Example 1 WW1 Example 3 Thickness (¾m I Mesh (g / m0 Woven Uniformity Jingluo (Thread / 25mm) Weft (Thread / 25mm)) The yarn warp and weft used are breathable Properties (CC / cm2 / 歹 also) Die coating device temperature Back roller temperature U.18 210 43.5 32.5 9 microns X 400 fibers 9 microns X 400 fibers 6 60 ° C 10 ° C 0.1 103.5 60 58 7 Micron X 200 fibers 7 μm X 200 fibers 15 60 ° C 10 ° C 0.1 103.5 60 58 7 Meters X 200 fiber counts_ 7 microns X 200 fiber counts 50 60 ° C 10 ° C Samples on the back rollers of resin splash bars Sample 4 Sample 5 Thickness (mm. Mesh @ 7 米 2) Weaving density warp (Ototo / 25mm) Weft (Ototo / 25mm) Used yarn warp weft thread permeability (CC / cm die coating device temperature back roller temperature 0.06 48 60 47 5 microns X 200 fiber number 5 microns X 200 Number of fibers 70 55 ° C 0.06 48 60 47 5 micrometers X 200 fibers 5 micrometers X 200 fibers 250 50 ° C 5 ° C pr grease 1 槚 w ft i sample No. Comparative example 1 Specific case 2 Thickness ( Mm) Mesh (g / m0 Woven uniformity warp 1 (thread / 25mm) Weft (thread / 25mm) Weft of yarn warp thread (CC / cm bar die coating device temperature backing) Roller temperature 0.06 48 60 47 5 microns X 200 fibers 5 microns X 200 fibers 70 60 ° C 10eC 0.06 48 60 47 5 microns X 200 fibers 5 microns X 200 fibers 250 60 ° C 10 ° C Resin deposition back Yes on the roller (please read the precautions on the back before filling this page) This paper size applies to China National Standard (CNS) A4 (210X297mm) -29- 43 ^ 28 3 Λ 'Α7 Β7 Pager Consumer Cooperation Du Printing Packing, Central Bureau of Standards, Ministry of Economic Affairs 5. Description of Invention (27) The resin used is the same as described above with reference to Figure 1. Change the combination of conditions, change the air permeability of the glass cloth affected by the thickness, the weaving density of the glass cloth, and its mesh, and adjust the temperature of the first die coater 3 and the backing roller 14a. When using a highly air-permeable glass cloth, the matrix resin easily passes through the glass cloth and is deposited on the backing roller 1 4 a, and the continuously fed glass is attached to the backing roller 1 4 due to the attached resin. a, so that the glass cloth may be broken. "In this way, when the matrix resin is coated on this glass cloth, the first mold coater 3 and the backing roller 1 4 a are kept at a lower temperature to increase the viscosity of the matrix resin.俾 癍 Do not extend the matrix resin to the backing roller 1 4 a »In the above experiment, check whether the matrix resin 2 is deposited on the backing roller 1 4 a. Comparative Example 1 uses the same glass cloth as Example 1, and compares In Example 2, the same glass cloth as in Example 5 is used. As shown in Table 1, in Examples 1 to 5, no matrix resin was deposited on the backing roller 1 4 a, but in Comparative Examples 1 and 2, a matrix resin 2 was deposited. Accumulated on the back roller 1 4 a. It has been found that when the air permeability of the glass cloth is large, it is possible to prevent the matrix resin from being deposited on the back roller by reducing the temperature of the first die coater 3 and the back roller 1 4 a to increase the profit of the matrix resin. . The first heating step experiments (Examples 6 to 10 and Comparative Examples 3 to 10) were performed under various conditions for manufacturing prepregs using the apparatus shown in Fig. 1, and the results are shown in Table 2 below. (Please read the note on the back before filling this page)

The paper size of the table applies the Chinese National Standard (CNS) A4 specification (210X 297mm)-30-434.28 3 V. Description of the invention (M) A7 B7 Example 8 Thickness (mm) 0.18 0,1 0.1 Mesh (g / m2) Weaving density 210 103.5 103.5 Warp threads (thread / 25 mm) 43.5 60 60 Weft threads (thread / 25 mm) 3 2.5 58 58 Yarn used Warp 9 micron X 400 fiber 7 micron X 200 fiber 7 micron X 200 fiber number dimension dimension weft 9 micron X 400 fiber 7 micron X 200 fiber 7 micron X 200 fiber dimension dimension air permeability (CC / cm V Second) 6 15 50 Heater temperature 350 ° C 300 ° C 300 ° C Atmospheric temperature 160 ° C 160 ° C 140 ° C Resin on the bottom side is good (Good on the bottom side (Good on the bottom side (Coating condition on the bottom side) No coating layer) No coating layer) No coating layer) Sample example 9 Example 10 Thickness (mm) 0.06 0.06 Mesh (g / m2) Weaving density 48 48 Warp threads (thread / 25 mm) 60 60 Weft threads ( Thread / 25mm) 47 47 used yarn warp 5 microns X 2 00 number of fibers 5 microns X 200 number of weft threads 5 microns X 200 number of fibers 5 microns X 200 number of fibers Air permeability (CC / cm V seconds) 70 250 Heater temperature 250 ° C 50 ° C Atmospheric temperature 100 ° C 80 ° C Resin on the bottom side is good (good on the bottom side (with no coating on the bottom side) (without coating) 91 --- J ------- pack-r .. rr (please read first (Please fill in the notes on the back before filling this page)

._J 'tr This paper size is in accordance with China National Standard (CNS) A4 (210X297 mm) -31-4 34 28 3 B7 V. Description of the invention (29) Printed copy by the Central Bureau of Standards, Ministry of Economic Affairs Comparative Example 3 Comparative Example 4 Comparative Example Thickness (鼋 米) Ream (绪 头 / 25mm) Weft (绪 头 / 25mm) The yarn warp weft thread permeability (CC / cm V sec) used by the heater Degree atmospheric temperature 1). 1¾ 210 43.5 32.5 9 meters X 4〇0 fiber secret number 9 microns X 400 fibers 6 150 ° C 80 ° C U.1 103.5 60 58 7 microns X 200 fibers 7 microns X 200 fibers Number 15 3501C 160 ° C 0.1 103.5 60 58 7 micron X 200 fiber number 7 micron X 200 fiber number 15 150 ° C 80 ° C resin coating situation on the side wwwwww ~ layer bottom p tt is too high i coating top Comparative example of side 穸 coating layer ¢) Comparative example 7 Comparative example》 Thickness (蹇 mesh mesh (g / m2) Weaving density warp (thread / 25mm) Weft thread (thread / 25mm) @ 1-thread weft breathable heater temperature atmospheric temperature 0.1 103.5 60 58 5 microns X 200 fibers 5 microns X 200 fibers 50 350 ° C 160 ° C ΐΓί 103.5 60 58 5 micron X 200 fiber • several meters X 200 fiber 50 150eC 80 ° C 0.06 48 60 47 5 micron X 200 fiber 1¾¾ X 200 fiber number 70 35 ° C 160 ° C bottom side Resin coating on top The bottom side is too thick. The top side is too much. The overlying layer is over Mf. Sample Comparative Example 9 Comparative Example 10 Weaving Density Warp (Thread / 25% m) Thread (Thread) / 25mm) The yarn warp and weft used are breathable for 1 heating i temperature atmospheric temperature 0.06 48 60 47 5 microns X 200 fiber X 20. Fiber 70 欤 150 ° C 80eC 48 60 47 5 microns X 200 fiber 5 microns X 200 Number of fibers 250 350 ° C 160 ° C Resin coating on the bottom side Excessive coating on the top side MiT Excessive coating on the top side (Please read the precautions on the back before filling this page) This paper size applies to Chinese national standards (CNS) A4 specification (210 X 297 mm) -32-A7 B7 43 4 28 3 V. Description of the invention (30) Use a far-infrared heater as the heating element 4. The matrix resin used was the same as that used in the above examples. The combination of changing conditions is based on the air permeability of the glass cloth, the weaving density of the glass cloth, and its mesh, as described above, and the temperature of the first heating unit 4 is adjusted. When a glass cloth having a large air permeability is used, the matrix resin easily passes through the glass cloth, so that the bottom side of the reinforcing substrate may contain a matrix resin coating layer having a large thickness. When a less air-permeable glass cloth is used, the matrix resin does not easily pass through the glass cloth, so that the top side of the reinforcing substrate may contain a matrix resin coating layer having a larger thickness. In this way, when the matrix resin is coated on the glass cloth, the temperature of the heating module 4 (and the heating atmospheric temperature of the heating module 4) is lower or higher, so as to increase or decrease the viscosity of the matrix resin 2 and extend to the bottom of the substrate. The amount of matrix resin on one side or left on the top side is the same as that on the other side of the substrate, and the substrate is coated with a matrix resin with a uniform thickness on both sides. In the experiment described above, the amount of the matrix resin extended to the bottom side of the substrate can be visually inspected. Comparative Example 3 corresponds to Example 6, Comparative Example 4 and corresponds to Example 7 'Comparative Examples 6 and 7 correspond to Example 8, and Comparative Example 8 and 9 correspond to Example 9, while Comparative Example 10 corresponds to Example. 1 0 ° As shown in Table 2 'by appropriately reducing or increasing the first heating element 4 when the air permeability of the glass cloth is larger or smaller The temperature was such that the reinforced substrates in Examples 6 to 10 were coated with a suitable matrix resin. Conversely, when the temperature of the first heating element 4 in Comparative Examples 4, 6, 8, and 10 is too high, the viscosity of the matrix resin is too low, so that the amount of the matrix resin 2 extending to the bottom portion of the substrate is excessive. This causes the resin coating to appear on the bottom side of the substrate. And, in Comparative Examples 3, 5, 7, and ^ ------ ^ Install —,, rv. (Please read the precautions on the back before filling out this page)-Ordered by the Shellfish Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs The paper size of this paper applies the Chinese National Standard (CNS) A4 (210X297 mm) -33-. ^ 34 28 3 Η Α7 Β7 'I " 1 — — · Μ I ιιι ,,,. ^ — &Quot; —' " V. Description of the invention (31) When the temperature of the first heating element 4 in 9 is too low, the viscosity of the matrix resin is too high, so that the amount of the matrix resin left on the top side of the substrate is too large, resulting in resin coating. Now the top side of the substrate. Throughout the description, the terms "bottom side portion" and "top side portion" mean the upper and lower halves of the reinforced substrate, and there is no clear boundary between these portions. Actually, the impregnated state that can be viewed from the substrate side is the impregnated state of the bottom part, and vice versa. Fig. 15 is a schematic diagram showing the first heating step of the fifth embodiment of the apparatus used for carrying out the prepreg manufacturing method. The first heating element 4 is divided into three longitudinal portions (heating zones 30a, 30b, and 30c) along the direction of the glass cloth. The glass cloth can be heated differently in the three longitudinal portions. In this way, the set temperature of each heating pressure can be selected according to the air permeability of a certain part of the glass cloth. Because the temperature set by the heating pressure is set lower to heat the glass cloth with higher air permeability, and vice versa, the bottom portion of the glass cloth contains a substantially equal amount of matrix resin. In this way, the top side of the substrate is strengthened. The matrix resin coating thickness is substantially the same as that applied on the bottom side. Printed by the Shell Standard Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page) The following can be used as an example of zone heating in the first heating step: use a width of 1 300 mm, a thickness of 1 80 microns and Glass cloth with a mesh of 210 g / m2; the mixture used as the matrix resin includes a component (A), containing a bisphenol type epoxy resin as a main component, and a small amount of a phenolic compound and a polyphenol Functional epoxy resin, an epoxy resin mixture (B), containing a difluoroamine (DICY) hardener, and an epoxy resin mixture (C), containing an imidazole-based promoter; this matrix resin has 60% 0 0 c P s viscosity; the size of the paper coated by the first die coater 3 is applicable to Chinese National Standard (CNS) A4 (210 X 297 mm) -34 · 43428 3 * A7 _____B7_ V. Description of the invention ( 32) The amount of matrix resin is 90% of the total amount of matrix resin applied in the manufacturing method, and this amount is equivalent to the resin content of 137 g / m2, which is the minimum amount of matrix resin plus only for reinforcement The amount of resin on the first coating side of the substrate. Each of the heating presses 30a, 30b, and 30c has a thickness of 500 mm. Experiments were performed using the fifth embodiment including the heating unit 4 shown in Figure 15 above (Examples 11 to 15), and the results are shown in Table 3 below: (Please read the precautions on the back before filling this page) " Binding 0. Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs This paper size applies to Chinese national standards (CNS > A4 size (210X297 mm)-35-4 34 28 3 4!, • Γ .r. A7 B7 V. Invention Explanation (33 The printed sample of the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs is not set. Example 1 '3 Thickness (group technique Λ mesh (g / m0 Knitting density _ warp thread (Thread head / 25¾ m)) (Suto / 25mm) Α FREE The g μ warp and weft threads are used. Air 悻 (CC / %% mQ m ΐ between the ΐ side s side 1 1α. 30a pressure heater temperature 30b pressure heater temperature 30c Pressure heater temperature Atmospheric temperature 0.18 210 43.5 32.5 9 microns X 400 fibers 9 microns X 400 fibers 9 6 6 330 ° C 350 ° C 350 ° C 160 ° C 0.1 103.5 60 58 7 microns X 200 fibers count 7 microns X 200 fiber number 20 15 15 280 ° C 300 ° C 300 ° C 160 ° C 0.1 103.5 60 58 7 microns X 200 fiber Number of 7 micron X 200 fiber number 65 50 50 250. 300 ° G 300 ° C 140 ° C Resin impregnation on the bottom side Uniform transverse 冋 Uniform transverse are the same as the sample Example 14 Example 15 Thickness (mm ~ 0.06 0.06 Mesh (g / m2) Weaving density 1 48 48 warp threads (thread / 25 mm) 60 60 weft threads (thread / 25 mm) used yarn 47 47 warp threads 5 microns X 200 fibers 5 microns X 200 fibers mm ^ Weft thread permeability (CC / cm V seconds) 5 microns X 200 fibers 5 microns X 200 fibers Left part 90 300 Ningjian part 70 250 δ Side part 70 250 30a Heater temperature 30b Pressure heater 30c Pressure heater temperature_ Atmosphere temperature 200. 100 ° C 25CTC 150 250〇C 15 o ° c 100 ° C 80 ° C The resin coating on the bottom side is horizontal and horizontally uniform (please read the precautions on the back first) (Fill in this page) Loading,, tr This paper size is applicable to the Chinese National Standard (CNS) A4 (210X297 mm) -36-Printed by the Bayer Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 43428 3 A7 ______B7_____ V. Description of the Invention (34) In the above example. Each of the five types of glass cloth has three portions' and one of them has a gas permeability different from that of the other two portions. The first heating step was performed by selecting different heating temperatures of the heating pressures 30a, 30b, and 30c, and the infiltration of the matrix resin 2 on the bottom side portion of the substrate was visually checked. In any of Examples 1 to 15, the air permeability of the part of the glass cloth facing the heating pressure 300a is extremely high, and the heating temperature of the heating pressure 30a is set to be low, so that the transverse direction of the matrix resin can be obtained. Evenly impregnated. FIG. 16 is a schematic diagram showing a first heating step and a second coating step of a sixth embodiment of the apparatus used for the present prepreg manufacturing method. FIG. 17 is a schematic diagram showing a gap portion after the first heating step. One of the 31 glass cloth surfaces was enlarged by a C CD camera. This photo was taken with the C CD camera 3 2 above the horizontal center of the glass cloth (ie, the composite laminate), and this glass cloth The first heating step 4 has been removed. The heating step is performed as described with reference to the embodiment shown in FIG. 15. A backlight 36 is located across the glass cloth. A monitor 3 3 connected to a CC camera was used to observe the state where the matrix resin penetrated into the glass cloth. The light of the backlight does not pass through the gap portion 3 1 ', so that these portions appear dark in the photo, and the impure portion looks bright because the light passes through these portions. "As shown in Figure 17 The glass cloth has a void portion 31. If these parts are still present after the first heating step, they will remain in the prepreg at the end. Use the CCD camera to monitor the infiltration state of the matrix resin between the first heating step and the second coating step, and when the void portion 3 '1 appears in the composite laminate, increase the heating temperature of the first heating element 4 to reduce Substrate (please read the precautions on the back before filling this page) '' Bind_Order '' This paper size is applicable to China National Standard (CNS) Α4 size (21 × 297 mm) -37- Ministry of Economic Affairs Central Standards Bureau Printed by the consumer cooperatives 43428 3 * Α7 _____ Β7 ____ V. Description of the invention (35) Viscosity of resin 2, the rhenium matrix resin can fully penetrate into the glass cloth without leaving voids. In addition, when a photo can be taken for a better density measurement, an image processing and analysis module can be used to perform double photo processing of the photo. In addition, when multiple CCD cameras are positioned laterally, different infiltrations along the width of the glass cloth can be detected, and if necessary, the first heating element can be divided into longitudinal portions, and each longitudinal portion of the glass cloth can be individually heated. . Fig. 18 is a schematic diagram showing the first heating step and the second coating step of the seventh embodiment of the apparatus used for carrying out the prepreg manufacturing method. In the embodiment shown in FIG. 18, a displacement gauge 24 is positioned between the first heating step and the second coating step, and the detection of the extension of the gap formed by the warp and weft to the bottom side of the reinforced substrate The amount of matrix resin 2. When this amount is too large, the heating temperature of the first heating element 4 is reduced to increase the viscosity of the base resin 2, and vice versa. In this way, the amount of resin extended can be unified, but the impregnation state of the top and bottom sides of the glass cloth is substantially the same (that is, the thickness of the coating layer on one side is the same as the other side). Figures 19 and 20 show the displacement measurement results of the top and bottom surfaces of the glass cloth 1 containing the matrix resin 2 during the first coating step using the apparatus shown in Figure 18. Using the same glass cloth and matrix resin described in reference to Figure 15 under the same conditions as described in Figure 15 "Displacement measurement using a visible light laser displacement meter positioned at the transverse center of the glass cloth In the first heating step and Between Second Coating Steps "In Figures 19 and 20, a schematic cross-sectional view of a substrate containing a matrix resin (ie, a composite laminate) is shown in (a), and the surface (the top of the composite laminate) Surface and bottom surface) displacement measurements are shown in (b). The first heating paper size is applicable to China National Standards (CNS) A4 (210X297 mm) -38-(Please read the note on the back before filling this page) Ordered by the Central Standards Bureau of the Ministry of Economic Affairs System 434 28 3 ^ Α7 ____ Β7 _____ V. Description of the Invention (36) The atmospheric heating temperature of module 4 is 160 ° C in Figure 19 (please refer to the setting temperature of the heating module is 3 50 ° C), and In Figure 20, it is 80 ° C (refer to the set temperature of the heating unit at 150 t). In FIG. 19, since the matrix resin 2 has been extended to the bottom side (bottom surface) 51 of the reinforcing substrate 1, the surface displacement pattern of the bottom side 51 has not changed substantially regardless of the position of the glass cloth. In contrast, in FIG. 20, the matrix resin 2 does not extend to the bottom side 51 of the reinforcing substrate 1 between the fiber bundles 52. Thus, the surface displacement of the bottom side is in a wave shape corresponding to the fiber bundles. And a small sharp displacement can also be seen corresponding to the exposed fiber or yarn (because it is a schematic diagram, it is not shown in Figure 20 (a), but in fact there are exposed fibers or yarn). When multiple visible laser light displacement gauges are arranged side by side with respect to the glass cloth, the lateral displacement of the bottom side of the glass cloth can be recognized, so that the infiltration difference can be detected along the width direction of the glass cloth. According to this difference, the heating module can be divided into the vertical part as described above, and the horizontal part can be changed part by part, and the viscosity of the matrix resin can be changed partly by the horizontal part. status. Fig. 21 is a schematic diagram showing a second coating step of the eighth embodiment of the apparatus used for the present prepreg manufacturing method. Fig. 22 shows the enlarged back-up rollers 1 4b used in the device shown in Fig. 21. Figure 2 2 (a) shows the back roller 1 4 b rotating in the moving direction of the strengthened substrate (ie, rotating forward), and Figure 2 2 (b) shows that it is better to follow the direction opposite to the moving direction of the strengthened substrate. Back rollers that rotate in the same direction (ie, backward) 1 4 b. As shown in section 2 2 (b), the back roller 1 4 b supporting the substrate 1 rotates in the opposite direction from the substrate 1, and substantially no matrix resin 2 accumulates on the reinforced substrate 1 and the back (please read the precautions on the back first) Please fill in this page again j. Binding. The size of the paper is applicable to the Chinese National Standard (CNS) A4 (210X297 mm) -39-Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economy 4 34 28 3 a? ___ _B7_ _ 5 Explanation of the invention (37) Between the rollers 1 4 b, the amount of 俾 can be kept constant on the substrate 1. For example, under the same conditions as the first coating step and the first heating step shown in FIG. 15 The same glass cloth 1 and matrix resin 2 as described with reference to Fig. 15 are used in the apparatus described in Figs. 21 and 22. After the first heating step, the matrix resin to be completely coated (total resin content) is used. 10% of 2 (viscosity 6 0 0 0 c P s) was applied to the bottom side of glass cloth 1 using a second die coater 5. The content of this matrix resin was equivalent to a resin content of 15 g / m2. When the back roller 1 4 b rotates in reverse at a peripheral speed of 8 m / min (as shown in Figure 22 (b)) and the substrate moving speed is 8 m / min, A matrix coating with an improved smoothness and a substantially uniform thickness is obtained. In contrast, when the backing roller 1 4 b is rotated forward at a speed of 8 m / min (as shown in Figure 2 2 (a)), a matrix resin The amount is accumulated between the substrate 1 and the backing roller 14 b, and when the amount reaches a certain limit, all the accumulated resin is transferred to the glass cloth. Further, the peripheral speed of the backing roller 1 4 b rotating forward increases. When it is faster than the moving speed of the glass cloth, the matrix resin 2 is transferred to the glass cloth more smoothly, and a smooth resin coating is formed. The speed of the backing roller 14 b is increased to 12 m / min or even 16 m / Time-sharing 'can obtain a smoother coating. Conversely, when the peripheral speed is reduced to 4 meters per hour, the smoothness of the coating is relatively reduced. Figures 2 and 3 show the schematic diagram of the method used to perform the prepreg manufacturing method. The second coating step of the ninth embodiment of the device 'wherein the glass cloth is pressed by the pressing rollers 34a and 34b with the backing roller 14b interposed therebetween. Alternatively, both the pressing rollers 3 4 a and 3 4 b may be omitted. Only one of them is used. In this embodiment, the contact area between a glass cloth 1 and a backing roller 14 is to protect the paper rule. Applicable in countries around the quasi-rub (CNS > A4 size (210X297 public widow) --40-- ~ (^^ Please read the back of the note and then fill in the entry page) installed · Γ '

S A7 B7 43428 3, V. Description of the invention (38) is kept constant, so that a uniform and smooth matrix resin coating can be effectively produced. (Please read the precautions on the back before filling this page.) For example, you can use the same conditions as those described with reference to Figure 15 under the same conditions as the first coating step and the first heating step with reference to Figure 15 The glass cloth 1 and the matrix resin 2 are placed in the device shown in FIG. 23 after the first heating step. The second mold coater 5 and the back-rotating back roller 1 4 b are used to completely coat the substrate to be coated. 10% of the resin (6 0 0 0 c P s viscosity) is coated on the bottom side of the glass cloth. This matrix resin amount is equivalent to a resin content of 15 g / m2. The upstream pressure roller 3 4 a and the optional pressure roller 3 4 b are lowered to keep the contact area between the glass cloth 1 and the backing roller 1 4 b constant. This contact area can be further increased or decreased by moving the rollers 3 4 a and / or 3 4 b in the longitudinal direction of the glass cloth. 俾 An optimum contact area β can be selected. Figure 24 shows the schematic diagram of the prepreg. The second coating step of the tenth embodiment of the apparatus used in the method, wherein the smoothing rollers 3 5 a and 3 5 b are rotated in opposite directions to the glass cloth moving direction to smooth the resin coating on both sides of the glass cloth. Arbitrary selection of a single smoothing roller. For example, it can be printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs. For example, the same glass cloth 1 and substrate as described with reference to FIG. 15 can be used under the same conditions as the first coating step and the first heating step with reference to FIG. 15. Resin 2 is in the apparatus shown in Figs. After the first heating step, 10% of the matrix resin (6 0 0 0 c P s viscosity) to be completely coated was coated with the second die coater 5 and the back-rotating back roller 1 4 b. Glass cloth underside. This matrix resin amount is equivalent to a resin content of 15 g / m2. One of the smoothing rollers 3 5 a and 3 5b (backward spinner) is arranged on the top side of the glass cloth, and the other is arranged on the bottom side of the glass cloth 'here'. This paper size applies to the Chinese National Standard (CNS) A4 (210X297 mm) -41 Yin Jia, Consumer Work Cooperative, Central Standards Bureau, Ministry of Economic Affairs, 4 34 28 3., 'at B7 V. Description of the invention (39) The matrix resin is released between the second coating step and the second heating step Body status. The moving speed of the glass cloth is 8 m / min, and the peripheral speeds of the smoothing rollers 35a and 35b are each 8 m / min. A 6 Ot heating medium is refluxed through the smoothing rollers 35a and 35b. Using the repair rollers 3 5 a and 3 5b can greatly improve the smoothness of the coating on the top and bottom sides of the glass cloth. FIG. 25 is a schematic diagram showing the first coating step, the first heating step, the second coating step, and the second heating step of the eleventh embodiment of the apparatus used in the prepreg manufacturing method. The state of the glass cloth 1 and the matrix resin '2 during the manufacturing process are illustrated, in which FIG. 2 (a) shows the state after the first coating step, and FIG. 2 (b) shows the state after the first heating step, and Fig. 26 (c) shows the state of the second coating step. As shown in Figures 2 5 and 26, the first coating step is performed from the glass cloth 1 by at least the minimum amount (in fact, the minimum amount plus the amount required to form a coating on the bottom side 51 of the glass cloth 1). The bottom side 51 applies a matrix resin to a glass cloth. The second coating step applies a matrix resin 50 from the top side of the glass cloth 1. Since the first coating step is performed from the bottom side, the excessive matrix resin can be prevented from extending to the top side of the glass cloth by gravity, and the resin content in the bottom side portion and the top side portion is substantially uniform. In a coating step, the resin is coated on the bottom side of the glass resin, and the same glass cloth 1 as described with reference to FIG. 15 can be used under the same conditions as the first coating step with reference to FIG. 15 And matrix resin 2 in the device shown in Figure 25. After the first heating step, that is, the glass cloth with the coating on the bottom side is heated with a far-infrared heater for 30 seconds. After the matrix resin penetrates into the glass cloth or even into the top side, the second, --1-- ---- Γ ^ Equipment-V :, ί Please read the precautions on the back before filling out this page) Order _ This paper size applies to China National Standard (CNS) A4 specification (210X297 mm) -42-Ministry of Economic Affairs Central Government Bureau! Printed by the Industrial and Commercial Cooperatives 3 4 28 3 ^ Λ7 B7 V. Description of the invention (40) The mold coater 5 coats 10% of the matrix resin (60 0 0 c P s viscosity) to be completely coated on the glass Top side of cloth. This matrix resin corresponds to a resin content of 15 g / m2. In the second heating step, the heating element 6 is divided into several parts longitudinally, and the heating temperature is individually controlled. When the matrix resin part heated by the divided part is too hard, the heating temperature of the divided part of the heating element 6 is heated. Reduce, so that the entire prepreg reaches a uniform degree of hardening. In the above-mentioned embodiment using the compaction roller 8, when pressing the reinforced substrate with matrix resin, it is preferable to cool the substrate by, for example, a spot cooler to prevent matrix resin from being deposited on the compaction roller. Brief Description of the Drawings FIG. 1 is a schematic view showing a first embodiment of a device for manufacturing a prepreg according to the method of the present invention; FIG. 2 is a schematic view showing a period in which the method of the present invention uses the device shown in FIG. A cross-sectional state of a reinforced substrate, where FIG. 2 (a) shows a state just after a first coating step, and FIG. 2 (b) shows a state just after a first heating step, and 2 (c ) Shows a state just after a second coating step; FIG. 3 shows a second embodiment of a device for manufacturing a prepreg according to the method of the present invention; FIG. 4 shows a method for manufacturing a prepreg according to the method of the present invention. One embodiment of the impregnating device; FIG. 5 is a schematic view showing a cross-sectional state of a matrix resin and a reinforced substrate during the method of the present invention using the device shown in FIG. The dimensions are applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) -43-(Please read the precautions on the back before filling this page)

Printed by the Central Standards Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperatives 4 3428 3 J |: A7 ____B7______ V. Description of the Invention (41) The figure shows the state just after a first coating step, and the figure 5 (b) shows just after a The state of the first heating step, and FIG. 5 (c) shows the state just after a second coating step; FIG. 6 is a schematic diagram showing the temperature distribution between the presence of a first heating step and the absence of additional heating. Different; FIG. 7 is a schematic view showing a heating component replacing a far-infrared heater in the first heating step; FIG. 8 is a schematic view showing a fourth embodiment of a device for manufacturing a prepreg according to the method of the present invention; Fig. 9 is a schematic diagram showing an alternative compaction roller configuration in the embodiment shown in Fig. 8; Fig. 10 is a diagram showing another alternative compaction roller configuration in the embodiment shown in Fig. 8; The figure shows a compaction roller arrangement in the alternative shown in Figure 8; Figure 12 shows a replacement of a loosening component of a reinforced substrate in the device shown in Figure 1. Example "Figure 1 3 shows an alternative example of the first coating step of the device shown in Figure 1; Figure 1 4 The laser displacement measurement results are shown in Fig. 14 (a), which shows an overlapping part of the reinforced substrate, and Fig. 14 (b), which shows no measurement results. The first heating component of the fifth embodiment of the fifth embodiment of the prepreg device manufactured by the method of the present invention; lii In-K u 11 (!: (Please read the precautions on the back before filling this page)

Order I-This paper size is in accordance with Chinese National Standard (CNS) A4 (210X297 mm) -44 · A7 B7 134 28 3 V. Description of the invention (42) The schematic diagram in Figure 16 shows the manufacturing of prepreg according to the method of the present invention One of the sixth embodiment of the device is a first heating step and a second coating step; (please read the note on the back before filling in this page) Figure 17 shows the first heating step. Photograph taken by a CCD camera, one of the surface states of a composite laminate with a glass cloth; Fig. 18 is a schematic diagram showing a first coating step and a second embodiment of a seventh embodiment of a prepreg device manufactured according to the method of the present invention; Coating steps: Figure 19 shows the measurement results of the surface displacement of a glass cloth. Figure 19 (a) shows the cross section of the glass cloth, and Figure 19 (b) shows the top side of the glass cloth. And the bottom side displacement measurement chart; Figure 20 shows a comparison of the surface displacement measurement results of glass cloth with Figure 19, where Figure 20 (a) is a schematic cross-sectional view of glass cloth, and Figure 20 ( b) The graph of displacement measurement results of the top and bottom sides of the glass cloth. The second coating step of the eighth embodiment of the method for manufacturing a prepreg device by the inventive method; printed by the Central Consumer Standards Bureau of the Ministry of Economic Affairs, the Consumer Cooperatives, Figure 2 is a schematic diagram showing one of the devices shown in Figure 2 Figure 2 (a) shows that the back roller rotates forward as indicated by the arrow in a comparative example, and figure 22 (b) shows that the back roller rotates backward as indicated by the arrow in the practice of the present invention; Figure 2 3 The schematic diagram illustrates a second coating step of one of the ninth embodiment of the prepreg device manufactured according to the method of the present invention; FIG. 24 illustrates the tenth embodiment of the prepreg device according to the method of the present invention. A second coating step and a second heating step; FIG. 25 is a schematic diagram showing the 45-45 of the prepreg device manufactured according to the method of the present invention. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm). 43 4 28 3 ^ A7 B7 V. Description of the invention (43) One of the eleventh embodiment is a first coating step, a first-heating step, a second coating step and a second heating step; A schematic diagram of a substrate resin and a glass during the method of the present invention using the device shown in Figure 25 A cross-sectional view of the cloth, wherein FIG. 2 (a) shows the state just after a first coating step, and FIG. 2 (b) shows a state just after a first heating step, and the 2 6 ( c) The figure shows the state just after a second coating step; and Fig. 27 is a schematic diagram showing a conventional device for manufacturing a prepreg. Brief description of the component symbols The numbers in the drawing refer to the following: * _. N —Ml-II 'iy ·· ~ (Please read the precautions on the back before filling this page) Printed by the Central Standards Bureau of the Ministry of Economic Affairs System 1 ........ Reinforced substrate 2 ........ Matrix resin 3 ........ First die coater 4 ........ First heating Module 5 ........ Second die coater 5 a ........ Second die coater outlet 6 ........ Second heating assembly 7 a .. ... storage tank 7 b ······· storage tank 7 c ........ storage tank 8 ·· V · " · compaction roller 9 ..... ... The paper size of the release roller is applicable to the Chinese national standard (CNS > A4 size (210X297 mm) _ 46 _ ^ 34 28 3 · βί V. Description of the invention (44) 9 b · · · · · 10. ..... A7 B7 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 12 .. 13 ·· 14a 14b 15 .. 2 1 · 2 2 * 2 3 ·· 2 4 ·· 2 4a 2 4b2 5 .. 2 6 ·· 3 0a 3 0b 3 0c Spare Roller Reservoir •• Metering Member * · Metering Member •• Metering Member Stirring Assembly Winding Assembly * * Back Support Roller •• Back Support Roller Release Kit Component Press displacement meter • Displacement sensor • * Double-sided adhesive on the overlapping part of the amplifier * • Heating pressure * • Heating pressure • • Heating pressure 3 1 ·· ·· …… Gap 3 2 .. ···· ·· CCD camera 3 3 ·· · · * · · · Monitor J ---- „------ ^ .Installation-... Ί (Please read the precautions on the back before filling this page) -The paper size of the book is free of China National Standards (CNS) Α4 specifications (210X297 mm) _ 47-

434.28 3 A r V. Description of the invention (45) 3 4a ......... Pressing roller 3 4b ......... Pressing roller 3 5a ......... Smoothing roller 3 5b ...... •• Smoothing roller 3 6 ........ Backlight 3 7 ........ Composite laminate 3 8 ........ Prepreg 4 0 ........ coating layer 4 1 ··· ..... matrix resin 4 2 ........ coating layer 5 0 ........ top side 5 1 ........ Bottom side 5 2 ........ Yarn 5 3 ........ Bundle (Please read the precautions on the back before filling this page) Central Standard of the Ministry of Economy The paper size printed by the Bureau ’s Consumer Cooperatives is applicable to China National Standards Corporation (CNS > A4 size (210X297 mm) · 48-

Claims (1)

8. '9 Λ8 R8 C8 D8 VI. Application for Patent Scope No. 86 1 1 1 39 Patent Application No. 8 Chinese Application for Patent Scope Amendment August 1989 Amendment 1. A method for manufacturing prepregs, which continuously supplies one A sheet-like fabric material used as a reinforcing substrate, a molten thermoplastic resin used as a matrix resin is supplied to the substrate 1 and the resin is heated. The method includes the following steps. (A) — 第一 涂A covering step in which a first mold coater is used to equalize or maximize the amount of matrix resin; (b) a first heating step in which a reinforced substrate having a matrix resin is heated by a first non-contact heating element; The matrix resin penetrates into the interior of the reinforced substrate to obtain a composite laminate made of the matrix resin and the reinforced substrate; (c) a second coating step in which the matrix resin is further applied to the composite using a second mold coater; At least one surface of the stack; and one surface of the printed substrate of the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, and all voids of the substrate-coated board may contain the substrate Resin is applied to strengthen more than reinforced base (d component pair to make the matrix tree in the matrix 2 (A (B is in the step) resin is semi-hard. For example, the method of manufacturing a prepreg in the first scope of the patent application, its fat The components included are:) a second heating step, in which a second non-contact heating) the composite lamination of the coated matrix resin is heated) —used as) an epoxy resin containing up to one main component Resin mixture with one less hardener: and the national standard of this paper (CNSM..1 specification (210 χ 297 g: g)) 3 4 28 3. Rong I __ ns 6. Scope of patent application (C) Hardener; each component is kept in a fluid state, and all the components are uniformly mixed and supplied to the first and / or second die coater. 3 · The method for manufacturing a prepreg as described in the scope of patent application item 2, wherein the matrix resin is Each ingredient or a mixture of the ingredients is filtered between its storage tank and the mixer that mixes all the ingredients together or between the mixer and the mold applicator, and each ingredient or mixture of the matrix resin has 5 0 0 to 5 0 0 Viscosity in the range of 0 0 0 centipoise. 4 · The method for manufacturing a prepreg as described in item 1 of the patent application range, wherein the amount of the matrix resin applied in the first coating step, except for all the voids that can strengthen the matrix, may be accommodated In addition to the maximum amount of matrix resin, 尙 includes the amount required to form a coating layer on the surface of the reinforced substrate coated with the matrix resin, and the second coating step applies the matrix resin to one surface of the reinforced substrate. The surface is opposite to the surface coated by the matrix resin in the first coating step. The method for manufacturing a prepreg as described in the first item of the patent application scope, wherein the second coating step is coated with a matrix resin The amount of layers formed on each surface of the composite laminate coated the matrix resin on both sides of the composite laminate. 6. The method for manufacturing a prepreg according to item 1 of the scope of the patent application, wherein additional heating is performed at one of the first heating group inlet or outlet of the first heating step. 7. The method for manufacturing a prepreg according to item 1 of the patent application scope, wherein a second heating step is performed, and the heating temperature is increased toward an outlet of one of the second heating components. This paper size applies to China National Standard (CNS) A4 specifications (210 X 297 males; g) (Please read the Weeping Matters on the back 'i, talk about writing this page) -Itching, printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 43 4 28 3.,! AS B8 C8 D8 6. Application for patent scope 8. If the patent is applied, the method further includes heating and using compaction 9 · For example, the step of detecting the thickness of the reinforced substrate is further included in the application patent. The thickness of the first die coater and the back 10 is adjusted as required. 1 1. If the application is in the range of the first heating step, the step of the roller pressing range is strong, and the gap between the rollers is coated by the die, and the gap is detected by the substrate with the base 1 item. Method for manufacturing prepreg, the second method is to strengthen the substrate of quality resin during or after the heating step. "Method for manufacturing prepreg, which is to supply the thickness of the strengthened substrate before the first mold coater to adjust the manufacturing prerequisite of item 1. The method of impregnation, the temperature of the device and a back roller depends on the strengthening base, please read the precautions of the back S, fill in) The air permeability of the substrate is adjusted 1 2. As in the method for manufacturing a prepreg according to item 1 of the patent application scope, wherein the first heating step heats any one of the plurality of longitudinal portions of the reinforcing substrate, respectively. 1 3. If the scope of the applied patent is set out, -'The method for manufacturing prepreg of item 1 printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs > and detecting the penetration of the matrix resin into the reinforced matrix between the second coating steps State, and if there is a void in the composite laminate >, adjust to reduce this void. The method for manufacturing a prepreg according to item 1, detecting the matrix resin extension between the coating steps, wherein the heating temperature in the first plus the first heating step is 1 4. As in the scope of the patent application, the first heating step and the second extension The state of the substrate on the side opposite to the heating temperature of the first coating side in a heating step is strengthened, and the state of the first matrix resin is adjusted. This paper size applies the Chinese National Standard (CNS) Al specification (210 X 297 mm) AS 4 34 28 3 I VI. Application for patent box enclosure 1 5 · As for the method for manufacturing prepregs in item 1 of the patent application scope, where The reinforcing substrate is supported by a backing roller, which is rotated in a direction opposite to the moving direction of the reinforcing substrate in the second coating step. 16. The method for manufacturing a prepreg according to item 1 of the scope of the patent application, wherein the back-up roller is rotated at a peripheral speed with a large substrate moving speed in the second coating step. 17. The method for manufacturing a prepreg according to item 1 of the patent application scope, wherein in the second coating step, the substrate is reinforced by a pressing step before or after the backing roller or by a step before or after the backing roller. The pressure rollers are pressed down. 1 8 · The method for manufacturing a prepreg as described in claim 1, wherein one or both surfaces of the reinforced substrate having a matrix resin are moved between the second coating step and the second heating step to follow the reinforced substrate. One or more smoothing rollers rotated in opposite directions to smooth. 19. The method for manufacturing a prepreg according to item 1 of the scope of patent application, wherein the matrix resin is applied to the bottom side of the reinforced substrate in a first coating step, and the matrix resin is applied in a second coating step. On the top side of the reinforced substrate. 20. The method for manufacturing a prepreg as described in the first item of the patent application scope, wherein the second heating step heats a plurality of longitudinal portions of the reinforcing substrate containing the matrix resin, respectively. 2 1. The method for manufacturing a prepreg according to item 1 of the scope of patent application, wherein the first heating component includes a vertical displacement component for vertically displacing the reinforced substrate. 2 2 · —A kind of device for manufacturing prepreg, including—Releasing component of reinforced substrate; This paper size applies to China National Standard (CNS) A4 specifications (210, 297 mm) η ^^ 1 In ϋ ^^ 1 nnn (锖 Please read the notes on the back and write this page first)-Line ', Printed by the Consumers Cooperative of the Intellectual Property Office of the Ministry of Economic Affairs 4 3 428 3 · ^ 6. Apply for a patent scope a depositor, feed on a strengthened substrate During the roll replacement, the prepreg process is continuously performed; the storage tanks respectively maintain a main component (A)-a hardener component (B) and a hardener component (C) at a predetermined temperature so that they are in a liquid state »metering components Distribute these ingredients from the tanks separately; a mixing module that mixes the measured ingredients to prepare a matrix resin; a first die coater that coats the matrix resin on a reinforced substrate; a first non- A contact-type heating element impregnates the matrix substrate with a matrix resin to form a composite laminate; a second die coater applies the matrix resin to the composite laminate; a second heating element causes the matrix contained in the composite laminate to Resin semi-dry A compaction roller that presses the reinforced substrate impregnated with the matrix resin and smoothes it, keeping the reinforced substrate at a predetermined temperature; and a winding roller, which is a prepreg or a cutting component produced by winding, horizontally Prepreg obtained by cutting. (Please read the precautions on the back before writing this page). Packing ---- Ordering --------- Line, printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperatives, this paper is printed in accordance with Chinese national standards ( CNS) A4 size (2.10 X 297 mm). 5-