CN111993683A - Continuous fiber reinforced thermoplastic resin powder impregnation device and impregnation method - Google Patents
Continuous fiber reinforced thermoplastic resin powder impregnation device and impregnation method Download PDFInfo
- Publication number
- CN111993683A CN111993683A CN202010303481.9A CN202010303481A CN111993683A CN 111993683 A CN111993683 A CN 111993683A CN 202010303481 A CN202010303481 A CN 202010303481A CN 111993683 A CN111993683 A CN 111993683A
- Authority
- CN
- China
- Prior art keywords
- thermoplastic resin
- powder
- roller
- resin powder
- continuous fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/504—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands
- B29C70/506—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands and impregnating by melting a solid material, e.g. sheet, powder, fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/543—Fixing the position or configuration of fibrous reinforcements before or during moulding
Abstract
The invention provides a continuous fiber reinforced thermoplastic resin powder impregnation device and an impregnation method. The device comprises a creel, a yarn spreading device, an atomizing and humidifying device, a powder spraying chamber, a powder recovery device, a radiation preheating device, a three-roller extrusion dipping device, a cooling device and a winding device. After being unreeled by a creel, the continuous fiber bundle firstly enters a yarn spreading device to be spread, is humidified by an atomizing and humidifying device, then enters a powder spraying chamber to be sprayed with powder, enters a radiation preheating device to melt resin, then enters a three-roller extrusion impregnating device to fully impregnate the fiber, then is cooled by a cooling device, and finally is coiled to obtain the continuous fiber reinforced thermoplastic resin composite material. The invention overcomes the defect that the electrostatic adsorption of the powder fluidized bed can not be applied to non-conductive fibers, and can prepare the continuous fiber reinforced thermoplastic resin composite material with good interface combination and excellent performance.
Description
Technical Field
The invention relates to a continuous fiber reinforced thermoplastic resin electrostatic powder impregnation device and an impregnation method, and belongs to the technical field of continuous fiber reinforced thermoplastic composite material manufacturing.
Background
The continuous fiber reinforced thermoplastic composite material has great potential advantages in the aspects of performance, application, price and the like. In order to fully exert the reinforcing effect on the fiber, impregnation processes such as melt impregnation, solution impregnation, film inlaying, hybrid weaving and the like have been developed successively. However, it is a problem how to sufficiently impregnate the matrix resin or the resin sensitive to heat having a high viscosity between the continuous fibers. Because the resin has high viscosity and large melt resistance, the fiber is difficult to impregnate or is easy to break in the impregnating die, and because the resin is sensitive to heat, the dead angle in the impregnating die is easy to cause the resin to decompose, so that the traditional preparation process is difficult to prepare the high-viscosity matrix resin or the continuous fiber reinforced impregnating sheet of the resin sensitive to heat.
The main equipment and method for preparing continuous fiber reinforced composite material impregnated sheet at present is melt impregnation, for example, chinese patent application CN201711495628.3, which introduces a fiber prepreg, its preparation method and application, an extruder is used to melt and extrude thermoplastic resin into an impregnation die, continuous fibers are simultaneously introduced into the impregnation die, fiber bundles and resin are impregnated and compounded in the die, but the method has high requirements for resin characteristics, and the resin must have good fluidity and heat resistance, and is not easy to decompose.
At present, a powder impregnation process is adopted to prepare a continuous fiber reinforced composite material impregnated sheet, which is divided into a wet process and a dry process, wherein the wet process powder impregnation is somewhat similar to solution impregnation, resin powder and a volatile solvent are prepared into a suspension, when reinforcing fibers pass through the solution, the resin powder is adhered to the surfaces of the fibers and among fiber bundles, and the prepreg is obtained through the processes of solvent removal, melting and impregnation. The wet method has the defects that the fiber content is not easy to control, the powder is not uniformly distributed in the suspension, the liquid medium and the surfactant are difficult to completely remove, and the interface combination ratio is difficult to solve, so that the overall performance of the material is influenced. Dry powder impregnation is mainly based on means such as fluidized bed and electrostatic adsorption, as described in EP2586585a1, to make resin powder adsorbed on the fiber surface and between bundles passing through the resin powder region, and then to prepare prepreg through melting and re-impregnation processes.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a continuous fiber reinforced thermoplastic resin electrostatic powder impregnation device and an impregnation method, which realize a continuous fiber reinforced thermoplastic resin prepreg sheet product with high viscosity or thermoplastic resin, humidify the surface of the fiber by adopting an atomizing and humidifying device, improve the conductivity of the fiber, further improve the adsorption force of the fiber and the resin powder, and can well adsorb the resin powder even if the non-conductive glass fiber or plant fiber is controlled by the atomizing amount; the electrostatic powder gun can accurately control the powder spraying amount, and further can accurately control the content of the fiber or the resin.
In order to achieve the purpose, the invention adopts the following technical scheme:
a continuous fiber reinforced thermoplastic resin powder impregnation device is characterized in that: the continuous fiber reinforced thermoplastic resin powder impregnation device sequentially comprises a creel, a yarn spreading device, an atomization and humidification device, a powder spraying chamber, a powder recovery device, a radiation preheating device, a three-roller extrusion impregnation device, a cooling device and a winding device; the atomizing and humidifying device is arranged at the inlet of the powder spraying chamber, is provided with 4-6 nozzles, is vertically and symmetrically distributed on the upper surface and the lower surface of the fiber bundle and is used for humidifying the upper surface and the lower surface of the fiber and improving the conductivity of the fiber; an inlet guide roller and an outlet guide roller are arranged at the inlet and the outlet of the powder spraying chamber, the outlet guide roller 14 is provided with a conductive wire connected with the ground to ensure that the fiber is provided with positive charges, 4-6 electrostatic powder spraying guns are symmetrically distributed up and down or horizontally and symmetrically distributed left and right in the powder spraying chamber, in order to ensure that the powder spraying is uniform, the distance between the electrostatic powder spraying guns and the fiber is 200-300mm, and the flow rate of the electrostatic powder spraying guns is 10-150 g/min.
Optionally, the exhibition yarn device form by air current exhibition yarn device and mechanical roller pendulous device combination, air current exhibition yarn device is located under the tow, exhibition yarn mode is for breathing in, the air current speed of breathing in is 6-9m/s to guarantee fibrous expansion, through mechanical roller swing exhibition yarn device behind the air current exhibition yarn, swing mechanical roller diameter is 50mm, the swing mode is for along the axial swing of mechanical roller, the frequency of swing is 20-120r/min, swing roller surface is electroplated in order to reduce the friction, the reduction is to the fibre wearing and tearing.
Optionally, the radiation preheating device preheats by infrared radiation, the length is 5-6 m, and the heating temperature is 200-.
Optionally, the three-roller extrusion and impregnation device comprises 3 compression rollers with the diameters of 300-500mm, the compression rollers are arranged in an L shape, the core part of each compression roller is heated by adopting heat conduction oil, and the temperature of the heat conduction oil is 100-380 ℃; the cooling device is composed of 3 compression rollers with the diameter of 400mm, the compression rollers are arranged in a straight line, the core part of each compression roller is cooled by cooling water, and the temperature of the cooling water is 5-20 ℃.
Optionally, the thermoplastic resin powder can be polyphenylene sulfide, polyether ether ketone, polyvinyl chloride, polyformaldehyde and the like, and the particle size of the powder is 100-150 meshes.
Optionally, the continuous fibers used are carbon fibers, glass fibers or vegetable fibers.
Optionally, the continuous fiber reinforced thermoplastic resin powder impregnation device and the molding process are characterized in that the process comprises the following steps:
a. after being unreeled by a creel, continuous fiber bundles firstly enter a yarn unfolding device, the fiber bundles are tightly arranged under the combined action of airflow yarn unfolding and mechanical roller swinging yarn unfolding, the fiber bundles become wide and thin, the unfolding width of a single fiber bundle is 15-25mm, the thickness of the single fiber bundle is 0.05-0.15mm, and a plurality of fiber bundles are changed into tightly arranged fiber bundles;
b. after spreading yarns of the continuous fiber bundles, humidifying the upper and lower surfaces of the fiber bundles by an atomizing humidifying device and spray heads which are symmetrically arranged up and down to increase the conductivity of the fiber bundles, wherein the atomizing amount is 30-100g/cm2；
c. The fiber bundle with the humidified and atomized upper and lower surfaces enters a powder spraying chamber under the traction action of a three-roller extrusion impregnation device, thermoplastic resin powder enters an electrostatic powder spraying gun through vacuum adsorption, the thermoplastic resin powder is charged with negative charges, the thermoplastic resin powder charged with the negative charges is sprayed to the upper and lower surfaces of the fiber bundle with the positive charges under the action of air pressure, the thermoplastic resin powder is adsorbed to the upper and lower surfaces of the fiber bundle due to the adsorption action of the positive and negative charges, and the traction speed is 3-5 m/min;
d. after being guided by an outlet guide roller, the fiber bundle adsorbing the thermoplastic resin powder enters a radiation preheating device, and the surface of the plastic resin powder is melted and adhered to the fibers under the radiation action of an infrared heat source;
e. the fiber bundle with the adhered resin enters a three-roller extrusion impregnation device, and under the combined action of extrusion and heat of rollers in an L-shaped layout, molten thermoplastic resin powder is extruded into the fiber bundle, so that the fiber is fully impregnated; and then, the fiber bundle passes through a cooling device, the upper surface and the lower surface of the fiber bundle are fully cooled and the surface is smooth under the cooling action of the compression rollers arranged in a straight line, and finally the fiber bundle is rolled to obtain the continuous fiber reinforced thermoplastic resin composite material.
Compared with the prior art, the continuous fiber reinforced thermoplastic resin electrostatic powder impregnation device and the impregnation method have the following beneficial effects:
(1) the atomization humidifying device is adopted to humidify the surface of the fiber, so that the conductivity of the fiber is improved, the adsorption force of the fiber and the resin powder is further improved, and the resin powder can be well adsorbed even if the non-conductive glass fiber or plant fiber is controlled by the atomization amount; the mixture of water and a coupling agent is used as a medium, so that the conductivity of the impregnated sheet can be improved, and the interfacial bonding force between fibers and resin can be improved, so that the performance of the impregnated sheet is obviously improved;
(2) the adopted electrostatic powder gun can accurately control the powder spraying amount, so that the content of fiber or resin can be accurately controlled;
(3) the yarn spreading device adopts a mode of combining air flow yarn spreading and mechanical yarn spreading, the air flow yarn spreading device is positioned under a fiber bundle, the yarn spreading mode is air suction, the air flow direction is vertical to the surface of the fiber bundle and faces downwards, the air flow speed of two sides is greater than that of air flow blocked by fibers in the middle under the action of initial fibers, so that the pressure of two sides is lower, the fiber bundle starts to be gradually spread towards two sides under the action of air pressure, and the fiber bundle splitting effect is achieved.
Drawings
FIG. 1 is a schematic view of the continuous fiber-reinforced thermoplastic resin powder impregnation apparatus of the present invention;
FIG. 2 is a schematic structural view of a vertical powder spraying chamber of the invention;
FIG. 3 is a schematic structural view of a horizontal powder spraying chamber of the invention;
fig. 4 is a schematic view of the yarn spreading device of the present invention.
Wherein: 1-a creel; 2-a yarn spreading device; 3-an air-flow yarn spreading device; 4-mechanical roller oscillating device; 5-an atomizing and humidifying device; 6-powder spraying chamber; 7-powder gun; 8-a powder recovery unit; 9-radiation preheating device; 10-three-roller extrusion dipping packaging; 11-a cooling device; 12-a winding device.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the electrostatic powder impregnation device for the continuous fiber reinforced thermoplastic resin sequentially comprises a creel 1, a yarn spreading device 2, an atomizing and humidifying device 5, a powder spraying chamber 6, a powder recovery device 8, a radiation preheating device 9, a three-roller extrusion impregnation device 10, a cooling device 11 and a winding device 12. Wherein the atomizing and humidifying device 5 is arranged at the inlet of the powder spraying chamber, preferably, the atomizing and humidifying device 5 is provided with 4-6 spray heads which are symmetrically and uniformly distributed on the upper surface and the lower surface of the fiber bundle, and the humidifying medium is a mixture of water and a coupling agent and is used for humidifying the upper surface and the lower surface of the fiber bundle and improving the conductivity of the fiber; an inlet guide roller 13 and an outlet guide roller 14 are arranged at the inlet and the outlet of the powder spraying chamber 6, the outlet guide roller 14 is provided with a conductive wire connected with the ground to ensure that the fiber is positively charged, 74-6 electrostatic powder spraying guns are arranged in the powder spraying chamber 6 and are uniformly distributed in an up-down symmetrical mode or in a left-right horizontal symmetrical mode, in order to ensure that the powder spraying is uniform, the distance between the electrostatic powder spraying guns 7 and the fiber is 200-300mm, and the flow speed of the electrostatic powder spraying guns is 10-150 g/min.
The powder spraying chamber 6 can be a vertical powder spraying chamber or a horizontal powder spraying chamber. The vertical powder spraying chamber is provided with an opening at the upper part and the lower part respectively as a fiber inlet and a fiber outlet, 4-6 nozzles are arranged in the powder spraying chamber, the nozzles are distributed in bilateral symmetry, the fibers enter from the upper inlet, the lower outlet is led out, the nozzles uniformly spray charged powder onto the surface of the fibers, and the right side of the powder spraying chamber is provided with a powder recovery device which can absorb and recycle the redundant powder; the horizontal powder spraying chamber is provided with a left opening and a right opening which are used as a fiber inlet and a fiber outlet, 4-6 nozzles are arranged in the powder spraying chamber and are distributed in an up-and-down symmetrical mode, fibers enter from the left inlet, the right outlet is led out, charged powder is uniformly sprayed onto the surface of the fibers by the nozzles, and a powder recovery device is arranged at the bottom of the powder spraying chamber and can absorb and recycle redundant powder.
The yarn spreading device 2 comprises an airflow yarn spreading device 3 and a mechanical roller swinging device 4, the airflow yarn spreading device 3 is located under a fiber bundle, the yarn spreading mode is air suction, the air suction airflow speed is 6-9m/s to guarantee the spreading of fibers, the yarn spreading device 4 is swung by the mechanical roller after the airflow yarn spreading, the diameter of the swinging mechanical roller is 50mm, the swinging mode is swinging along the axial direction of the mechanical roller, the swinging frequency is 20-120r/min, the swinging amplitude is 10-20mm, the surface of the swinging roller is electroplated to reduce friction, and the abrasion to the fibers is reduced. The fiber bundle enters a mechanical roller swinging yarn spreading device (4) after passing through an airflow yarn spreading device (3).
The radiation preheating device 9 is used for preheating by infrared radiation, the length is 5-6 meters, and the heating temperature is 200-380 ℃.
The three-roller extrusion dipping device 10 comprises 3 extrusion compression rollers with the diameter of 300-500mm, the extrusion compression rollers are arranged in an L shape, the core part of the extrusion compression rollers is heated by adopting heat conduction oil, and the temperature of the heat conduction oil for heating is 200-380 ℃; the cooling device comprises 3 cooling compression rollers with the diameter of 400mm, the cooling compression rollers are arranged in a straight line shape, the core part of the cooling compression roller is cooled by cooling water, and the temperature of the cooling water is 5-20 ℃.
The impregnation method adopting the device comprises the following impregnation steps:
(1) after being unreeled by a creel 1, continuous fiber bundles firstly enter a yarn unfolding device 2, under the combined action of an airflow yarn unfolding device 3 and a mechanical roller swinging yarn unfolding device 4, the fiber bundles are closely arranged, the fiber bundles become wide and thin, the unfolded width of a single fiber bundle is 15-25mm, the thickness of the single fiber bundle is 0.02-0.15mm, and a plurality of fiber bundles are changed into closely arranged fiber bundles;
(2) after the continuous fiber bundle is spread, the upper and lower surfaces of the fiber bundle are humidified through the atomizing and humidifying device 5 and the symmetrically arranged spray heads to increase the conductivity of the fiber bundle, and the atomizing amount is 30-100g/cm2；
(3) The fiber bundle with the humidified and atomized upper and lower surfaces enters a powder spraying chamber 6 under the traction action of a three-roller extrusion and impregnation device 10, thermoplastic resin powder enters an electrostatic powder spraying gun 7 through vacuum adsorption, the thermoplastic resin powder is charged with negative charges, the thermoplastic resin powder charged with the negative charges is sprayed to the upper and lower surfaces of the fiber bundle with positive charges under the action of air pressure, due to the adsorption action of the positive and negative charges, the thermoplastic resin powder is adsorbed to the upper and lower surfaces of the fiber bundle, and the traction speed is 3-5 m/min;
(4) the fiber bundle absorbing the thermoplastic resin powder enters a radiation preheating device 9 after being guided by an outlet guide roller 14, and the surface of the thermoplastic resin powder is melted and adhered in the fiber under the radiation action of an infrared heat source;
(5) the fiber bundle with the adhesive resin enters a three-roller extrusion impregnating device 10, and under the combined action of extrusion and heat of the rollers in the L-shaped layout, molten thermoplastic resin powder is extruded into the fiber bundle, so that the fiber is fully impregnated; then, the fiber bundle passes through a cooling device 11, the upper surface and the lower surface of the fiber bundle are fully cooled under the cooling action of compression rollers arranged in a straight line, the surface is smooth, and finally the fiber bundle is rolled to obtain the continuous fiber reinforced thermoplastic resin powder impregnated composite material.
Examples 1
The continuous fiber reinforced thermoplastic resin powder impregnation device and the impregnation method are adopted, wherein the parameters are as follows:
the atomization humidifying device 5 is provided with 6 spray heads, and the atomization amount is 80g/cm2The number of the electrostatic powder spray guns 7 is 4,the distance between the electrostatic powder gun 7 and the fiber is 200mm, and the flow rate of the electrostatic powder gun is 120 g/min. The traction speed is 4 m/min;
the air flow speed of the air suction flow of the air spreading 3 is 8m/s, the diameter of the swing mechanical roller is 50mm, and the swing frequency is 100 r/min. The individual fiber bundles after passing through the spreading device 2 were spread to a width of 18mm and a thickness of 0.035 mm.
Preheating by infrared radiation, the length is 5m, and the heating temperature is 200 ℃.
The three-roller extrusion dipping device 10 is composed of 3 compression rollers with the diameter of 300mm, the compression rollers are arranged in an L shape, the core part of each compression roller is heated by heat conduction oil, and the heating temperature of the heat conduction oil is 190 ℃; the cooling device is composed of 3 compression rollers with the diameter of 400mm, the compression rollers are arranged in a straight line, the core part of each compression roller is cooled by cooling water, and the temperature of the cooling water is 5 ℃.
The selected thermoplastic resin powder is polyoxymethylene, and the particle size of the powder is 120 meshes. The continuous fibers used are glass fibers.
The fiber mass content of the continuous glass fiber reinforced polyformaldehyde composite material prepared by the method is 45%, and the bending strength, the tensile strength and the unnotched impact strength of the continuous glass fiber reinforced polyformaldehyde composite material are 265Mpa, 302Mpa and 152KJ/m respectively2。
EXAMPLES example 2
The continuous fiber reinforced thermoplastic resin powder impregnation device and the impregnation method are adopted, wherein the parameters are as follows:
the atomization humidifying device 5 is provided with 6 spray heads, and the atomization amount is 80g/cm2The number of the electrostatic powder spray guns 7 is 4, the distance between the electrostatic powder spray guns 7 and the fiber is 200mm, and the flow rate of the electrostatic powder spray guns is 100 g/min. The traction speed is 4 m/min;
the air flow speed of the air suction flow of the air spreading 3 is 8m/s, the diameter of the swing mechanical roller is 50mm, and the swing frequency is 100 r/min. The single fiber bundle passes through the yarn spreading device 2 and is spread to have a width of 20mm and a thickness of 0.025 mm.
Preheating by infrared radiation, the length is 6 meters, and the heating temperature is 380 ℃.
The three-roller extrusion dipping device 10 is composed of 3 compression rollers with the diameter of 300mm, the compression rollers are arranged in an L shape, the core part of each compression roller is heated by heat conduction oil, and the heating temperature of the heat conduction oil is 380 ℃; the cooling device is composed of 3 compression rollers with the diameter of 400mm, the compression rollers are arranged in a straight line, the core part of each compression roller is cooled by cooling water, and the temperature of the cooling water is 5 ℃.
The selected thermoplastic resin powder is polyether ether ketone, and the particle size of the powder is 100 meshes. The continuous fibers used are carbon fibers.
The fiber mass content of the continuous carbon fiber reinforced polyether-ether-ketone composite material prepared by the method is 60 percent, and the bending strength, the tensile strength and the unnotched impact strength of the continuous carbon fiber reinforced polyether-ether-ketone composite material are 1026Mpa, 802Mpa and 342KJ/m respectively2。
EXAMPLE 3
The continuous fiber reinforced thermoplastic resin powder impregnation device and the impregnation method are adopted, wherein the parameters are as follows:
the atomization humidifying device 5 is provided with 6 spray heads, and the atomization amount is 80g/cm2The number of the electrostatic powder spray guns 7 is 4, the distance between the electrostatic powder spray guns 7 and the fiber is 200mm, and the flow rate of the electrostatic powder spray guns is 150 g/min. The traction speed is 4 m/min;
the air flow speed of the air suction flow of the air spreading 3 is 8m/s, the diameter of the swing mechanical roller is 50mm, and the swing frequency is 100 r/min. The single fiber bundle passes through the yarn spreading device 2, and the spread width is 15mm and the thickness is 0.05 mm.
Preheating by infrared radiation, the length is 5m, and the heating temperature is 165 ℃.
The three-roller extrusion dipping device 10 is composed of 3 compression rollers with the diameter of 300mm, the compression rollers are arranged in an L shape, the core part of each compression roller is heated by heat conduction oil, and the heating temperature of the heat conduction oil is 165 ℃; the cooling device is composed of 3 compression rollers with the diameter of 400mm, the compression rollers are arranged in a straight line, the core part of each compression roller is cooled by cooling water, and the temperature of the cooling water is 5 ℃.
The thermoplastic resin powder selected was polyvinyl chloride, and the particle size of the powder was 150 mesh. The continuous fiber is hemp fiber
The fiber mass content of the continuous fibrilia reinforced polyvinyl chloride composite material prepared by the method is 38.5 percent, and the bending strength, the tensile strength and the unnotched impact strength of the continuous fibrilia reinforced polyvinyl chloride composite material are 189Mpa, 214Mpa and 76KJ/m respectively2。
Claims (9)
1. The electrostatic powder impregnation device for the continuous fiber reinforced thermoplastic resin is characterized in that: comprises a creel (1), a yarn spreading device (2), an atomizing and humidifying device (5), a powder spraying chamber (6), a powder recovery device (8), a radiation preheating device (9), a three-roller extrusion dipping device (10), a cooling device (11) and a winding device (12) which are arranged in sequence; the atomization and humidification device (5) is positioned at the front end of an inlet of the powder spraying chamber, the atomization and humidification device (5) comprises a plurality of spray heads, and the spray heads are connected with a humidification medium storage component; an inlet guide roller (13) and an outlet guide roller (14) are arranged at the inlet and the outlet of the powder spraying chamber (6), the outlet guide roller (14) is provided with a conductive wire connected with the ground, a plurality of electrostatic powder spraying guns (7) are arranged in the powder spraying chamber (6), the distance between the electrostatic powder spraying guns (7) and the fibers is 200-300mm, and the flow rate of the electrostatic powder spraying guns is 10-150 g/min.
2. The continuous fiber reinforced thermoplastic resin powder impregnation device according to claim 1, characterized in that: 4-6 spray heads of the atomization humidifying device (5) are symmetrically and uniformly distributed, and 4-6 electrostatic powder spraying guns (7) of the powder spraying chamber (6) are symmetrically and uniformly distributed.
3. The continuous fiber reinforced thermoplastic resin powder impregnation device according to claim 1, characterized in that: the yarn unfolding device (2) comprises an airflow yarn unfolding device (3) and a mechanical roller swinging device (4), the airflow yarn unfolding device (3) is located under a fiber bundle, the yarn unfolding mode is air suction, the air suction airflow speed is 6-9m/s, the mechanical roller swinging yarn unfolding device (4) is located in the far direction away from a creel (1), the diameter of a swinging mechanical roller is 50mm, the swinging mode is swinging along the axial direction of the mechanical roller, the swinging frequency is 20-120r/min, the swinging amplitude is 10-20mm, the surface of the swinging roller is electroplated, and the fiber bundle enters the mechanical roller swinging yarn unfolding device (4) after passing through the airflow yarn unfolding device (3).
4. The continuous fiber reinforced thermoplastic resin powder impregnation device according to claim 1, characterized in that: the radiation preheating device (9) is used for preheating by infrared radiation, the length is 5-6 meters, and the preheating temperature is 200-380 ℃.
5. The continuous fiber reinforced thermoplastic resin powder impregnation device according to claim 1, characterized in that: the three-roller extrusion and impregnation device (10) comprises three extrusion compression rollers with the diameters of 300-500mm, the extrusion compression rollers are arranged in an L shape, the core part of each extrusion compression roller is provided with a through hole, heat conduction oil is led in the through hole, and the temperature of the heat conduction oil is 200-380 ℃; the cooling device comprises three cooling compression rollers with the diameter of 400mm, the three cooling compression rollers are arranged in a straight line shape, a cooling compression roller core part is provided with a through hole, cooling water is introduced into the through hole, and the temperature of the cooling water is 5-20 ℃.
6. A method for impregnating with continuous fiber reinforced thermoplastic resin powder, using the continuous fiber reinforced thermoplastic resin powder impregnation device according to any one of claims 1 to 5, comprising the steps of:
a. after being unreeled by a creel (1), the continuous fiber bundles firstly enter a yarn unfolding device (2), and under the combined action of airflow yarn unfolding (3) and mechanical roller swinging yarn unfolding (4), the continuous fiber bundles are tightly arranged, the fiber bundles become wide and thin, the unfolded width of a single fiber bundle is 15-25mm, the thickness of the single fiber bundle is 0.02-0.15mm, and a plurality of fiber bundles are changed into tightly arranged fiber bundles;
b. after spreading yarns, the continuous fiber bundles enter an atomization and humidification device (5), humidification media are sprayed on the upper surface and the lower surface of the fiber bundles through a spray head to increase the conductivity of the fiber bundles, and the humidification and atomization amount of the spray head is 30-100g/cm2；
c. The fiber bundle with the upper and lower surfaces humidified and atomized enters a powder spraying chamber (6) under the traction action of a three-roller extrusion impregnating device (10), thermoplastic resin powder enters an electrostatic powder spraying gun (7) through vacuum adsorption, the thermoplastic resin powder is charged with negative charges, the thermoplastic resin powder charged with the negative charges is sprayed to the upper and lower surfaces of the fiber bundle with the positive charges under the air pressure, the thermoplastic resin powder is adsorbed to the upper and lower surfaces of the fiber bundle due to the adsorption action of the positive and negative charges, and the traction speed is 3-5 m/min;
d. the fiber bundle adsorbing the thermoplastic resin powder enters a radiation preheating device (9) after being guided by an outlet guide roller (14), and the surface of the thermoplastic resin powder is melted and adhered in the fiber under the radiation action of an infrared heat source;
e. the fiber bundle adhered with the resin enters a three-roller extrusion impregnation device (10), and under the hot extrusion action of an extrusion pressing roller, molten thermoplastic resin powder enters the interior of the fiber bundle, so that the fiber is fully impregnated; and then, the fiber bundle passes through a cooling device (11), the upper surface and the lower surface are fully cooled under the action of a cooling compression roller, and finally, the continuous fiber reinforced thermoplastic resin powder impregnated composite material is obtained by rolling.
7. The continuous fiber reinforced thermoplastic resin powder impregnation device according to claim 6, characterized in that: the thermoplastic resin is selected from polyphenylene sulfide, polyether ether ketone, polyvinyl chloride and polyformaldehyde, and the particle size of the powder is 100-150 meshes.
8. The continuous fiber reinforced thermoplastic resin powder impregnation device according to claim 6, characterized in that: the continuous fibers are selected from the group consisting of carbon fibers, glass fibers, and plant fibers.
9. The continuous fiber reinforced thermoplastic resin powder impregnation device according to claim 6, characterized in that: the humidifying medium is a mixture of water and a coupling agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010303481.9A CN111993683A (en) | 2020-04-17 | 2020-04-17 | Continuous fiber reinforced thermoplastic resin powder impregnation device and impregnation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010303481.9A CN111993683A (en) | 2020-04-17 | 2020-04-17 | Continuous fiber reinforced thermoplastic resin powder impregnation device and impregnation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111993683A true CN111993683A (en) | 2020-11-27 |
Family
ID=73461535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010303481.9A Pending CN111993683A (en) | 2020-04-17 | 2020-04-17 | Continuous fiber reinforced thermoplastic resin powder impregnation device and impregnation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111993683A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI765625B (en) * | 2021-03-26 | 2022-05-21 | 長興材料工業股份有限公司 | Method for manufacturing polyaryletherketone plastic containing fiber |
| CN115366443A (en) * | 2022-09-08 | 2022-11-22 | 四川大学 | Continuous fiber reinforced thermoplastic composite material impregnation method, printing method and device |
| CN116038941A (en) * | 2022-12-30 | 2023-05-02 | 中国人民解放军军事科学院系统工程研究院 | Continuous fiber reinforced thermoplastic resin powder impregnating device |
| CN116426071A (en) * | 2023-05-25 | 2023-07-14 | 江苏大易材料科技有限公司 | Thermoplastic continuous fiber strip with high mechanical property and production process thereof |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082125A (en) * | 1992-07-31 | 1994-02-16 | 佐治亚科技研究公司 | Soft multiply predipped yarn, with its product of making and preparation method |
| CN102850816A (en) * | 2011-06-27 | 2013-01-02 | 上海杰事杰新材料(集团)股份有限公司 | Thermoplastic resin composite material and preparation method and application thereof |
| CN103847111A (en) * | 2012-12-01 | 2014-06-11 | 北京化工大学 | Molding method of continuous fiber reinforced thermoplastic resin sheet |
| CN103847109A (en) * | 2012-12-07 | 2014-06-11 | 苏州荣昌复合材料有限公司 | Method and device for preparing continuous fiber reinforced thermoplastic composite material |
| CN103915032A (en) * | 2014-04-22 | 2014-07-09 | 湖南大学 | GMT sheet production system for teaching experiments |
| CN104005138A (en) * | 2014-05-07 | 2014-08-27 | 华南理工大学 | Stepless-regulation airflow-mechanical cellosilk spreading mechanism |
| JP2015030129A (en) * | 2013-07-31 | 2015-02-16 | 宇部エクシモ株式会社 | Method for producing fiber-reinforced thermoplastic resin flat shape composite material having water-absorption property and coloring discrimination function |
| WO2016062896A1 (en) * | 2014-10-24 | 2016-04-28 | Porcher Industries | Strands powdered by electrostatic method |
| CN108214980A (en) * | 2017-12-12 | 2018-06-29 | 华东理工大学 | A kind of device and method for preparing continuous fiber reinforced thermoplastic prepreg tape |
| CN108340599A (en) * | 2018-02-13 | 2018-07-31 | 山东节点新材料科技有限公司 | A kind of new type of continuous fiber makes the technique and method of thermoplasticity prepreg |
| TWI655081B (en) * | 2018-04-26 | 2019-04-01 | 財團法人塑膠工業技術發展中心 | Equipment and method for producing ultra thin films |
| CN110087847A (en) * | 2016-12-22 | 2019-08-02 | 阿科玛法国公司 | Pass through the manufacturing method of the fibrous material of the thermoplastic polymer pre-preg of injection powder type |
-
2020
- 2020-04-17 CN CN202010303481.9A patent/CN111993683A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082125A (en) * | 1992-07-31 | 1994-02-16 | 佐治亚科技研究公司 | Soft multiply predipped yarn, with its product of making and preparation method |
| CN102850816A (en) * | 2011-06-27 | 2013-01-02 | 上海杰事杰新材料(集团)股份有限公司 | Thermoplastic resin composite material and preparation method and application thereof |
| CN103847111A (en) * | 2012-12-01 | 2014-06-11 | 北京化工大学 | Molding method of continuous fiber reinforced thermoplastic resin sheet |
| CN103847109A (en) * | 2012-12-07 | 2014-06-11 | 苏州荣昌复合材料有限公司 | Method and device for preparing continuous fiber reinforced thermoplastic composite material |
| JP2015030129A (en) * | 2013-07-31 | 2015-02-16 | 宇部エクシモ株式会社 | Method for producing fiber-reinforced thermoplastic resin flat shape composite material having water-absorption property and coloring discrimination function |
| CN103915032A (en) * | 2014-04-22 | 2014-07-09 | 湖南大学 | GMT sheet production system for teaching experiments |
| CN104005138A (en) * | 2014-05-07 | 2014-08-27 | 华南理工大学 | Stepless-regulation airflow-mechanical cellosilk spreading mechanism |
| WO2016062896A1 (en) * | 2014-10-24 | 2016-04-28 | Porcher Industries | Strands powdered by electrostatic method |
| CN110087847A (en) * | 2016-12-22 | 2019-08-02 | 阿科玛法国公司 | Pass through the manufacturing method of the fibrous material of the thermoplastic polymer pre-preg of injection powder type |
| CN108214980A (en) * | 2017-12-12 | 2018-06-29 | 华东理工大学 | A kind of device and method for preparing continuous fiber reinforced thermoplastic prepreg tape |
| CN108340599A (en) * | 2018-02-13 | 2018-07-31 | 山东节点新材料科技有限公司 | A kind of new type of continuous fiber makes the technique and method of thermoplasticity prepreg |
| TWI655081B (en) * | 2018-04-26 | 2019-04-01 | 財團法人塑膠工業技術發展中心 | Equipment and method for producing ultra thin films |
Non-Patent Citations (1)
| Title |
|---|
| 郭晓军: "《作业现场HSE管理》", 31 August 2018, 上海交通大学出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI765625B (en) * | 2021-03-26 | 2022-05-21 | 長興材料工業股份有限公司 | Method for manufacturing polyaryletherketone plastic containing fiber |
| CN115366443A (en) * | 2022-09-08 | 2022-11-22 | 四川大学 | Continuous fiber reinforced thermoplastic composite material impregnation method, printing method and device |
| CN116038941A (en) * | 2022-12-30 | 2023-05-02 | 中国人民解放军军事科学院系统工程研究院 | Continuous fiber reinforced thermoplastic resin powder impregnating device |
| CN116038941B (en) * | 2022-12-30 | 2024-04-19 | 中国人民解放军军事科学院系统工程研究院 | Continuous fiber reinforced thermoplastic resin powder impregnating device |
| CN116426071A (en) * | 2023-05-25 | 2023-07-14 | 江苏大易材料科技有限公司 | Thermoplastic continuous fiber strip with high mechanical property and production process thereof |
| CN116426071B (en) * | 2023-05-25 | 2024-03-19 | 江苏大易材料科技有限公司 | Thermoplastic continuous fiber strip with high mechanical property and production process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111993683A (en) | Continuous fiber reinforced thermoplastic resin powder impregnation device and impregnation method | |
| JP5722732B2 (en) | Method for producing isotropic random mat for forming thermoplastic composite material | |
| US5565049A (en) | Method of making mats of chopped fibrous material | |
| CN110799578A (en) | Fibrous material impregnated with thermoplastic polymer | |
| CN106555277B (en) | The device and method of composite ultrafine fiber beam is prepared using melt-blown and electrostatic spinning | |
| CN105583962A (en) | Method for preparing thermoplastic prepreg by two-sided dusting technology | |
| TWI427201B (en) | Process and device for manufacturing a composite strand | |
| JP6454400B1 (en) | Alternating pressure melt impregnation apparatus and melt impregnation method | |
| KR20230145233A (en) | Method for manufacturing a fibrous material pre-impregnated with thermoplastic polymer in powder form | |
| CN104924487A (en) | Preparation system and preparation method of thermoplastic carbon fiber prepreg | |
| CN106182494B (en) | A kind of preparation process of continuous fiber reinforced thermoplastic prepreg tape | |
| CN205631113U (en) | Serialization preparation facilities of continuous fibers reinforcing thermoplasticity preimpregnation material | |
| CN108340599B (en) | Process and method for manufacturing thermoplastic prepreg by continuous fibers | |
| CN106239937B (en) | A kind of device preparing continuous fiber reinforced thermoplastic prepreg tape | |
| CN106015838A (en) | Inner core material used for vacuum heat-insulating plate and vacuum heat-insulating plate | |
| WO2017028421A1 (en) | Production equipment for nano-fiber deposit-based waterproof breathable fabric | |
| US5134959A (en) | Apparatus for coating fibers with thermoplastics | |
| CN110712383A (en) | Device and method for preparing carbon fiber thermoplastic impregnated tape by water-based powder impregnation | |
| CN116038941B (en) | Continuous fiber reinforced thermoplastic resin powder impregnating device | |
| CN212143102U (en) | Powder electrostatic spraying device is used in production of continuity reinforcing fiber preimpregnation area | |
| CN114892288B (en) | Enhanced flash evaporation/electrostatic spinning composite spinning equipment | |
| CN112810262B (en) | Preparation method of resistance welding element made of thermoplastic plastic composite material | |
| CN111979644A (en) | Preparation method for forming strong electrostatic cloth by fusing plastic melt spinning with low-pressure water mist silk | |
| CN102011281B (en) | Hot melt wire gluing device | |
| CN106555236A (en) | A kind of utilization meltblown prepares the device and method of superfine fibre beam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20201127 |
|
| WD01 | Invention patent application deemed withdrawn after publication |