CN108001018B - Preparation method of glass fiber reinforced thermosetting thermoplastic composite board - Google Patents
Preparation method of glass fiber reinforced thermosetting thermoplastic composite board Download PDFInfo
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- CN108001018B CN108001018B CN201711456345.8A CN201711456345A CN108001018B CN 108001018 B CN108001018 B CN 108001018B CN 201711456345 A CN201711456345 A CN 201711456345A CN 108001018 B CN108001018 B CN 108001018B
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- thermosetting
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- 239000003365 glass fiber Substances 0.000 title claims abstract description 119
- 229920001187 thermosetting polymer Polymers 0.000 title claims abstract description 116
- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 72
- 239000004416 thermosoftening plastic Substances 0.000 title claims abstract description 72
- 239000002131 composite material Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 238000007493 shaping process Methods 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 229920005989 resin Polymers 0.000 claims description 41
- 239000011347 resin Substances 0.000 claims description 41
- 229920005992 thermoplastic resin Polymers 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 16
- 230000009471 action Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000003822 epoxy resin Substances 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 8
- 229920000647 polyepoxide Polymers 0.000 claims description 8
- 239000000047 product Substances 0.000 claims description 8
- 229920006337 unsaturated polyester resin Polymers 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 4
- 229920001431 Long-fiber-reinforced thermoplastic Polymers 0.000 claims description 3
- 239000011199 continuous fiber reinforced thermoplastic Substances 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000010924 continuous production Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 29
- 239000012815 thermoplastic material Substances 0.000 description 11
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 5
- 229920001155 polypropylene Polymers 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- -1 Polypropylene Polymers 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/04—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/38—Layered products comprising a layer of synthetic resin comprising epoxy resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
Landscapes
- Laminated Bodies (AREA)
- Moulding By Coating Moulds (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention relates to a glass fiber reinforced thermosetting thermoplastic composite board and production equipment and a preparation method thereof, belonging to the field of composite materials. The composite board comprises a glass fiber reinforced thermosetting board, a continuous felt layer and a glass fiber reinforced thermoplastic board, wherein the continuous felt layer is arranged between the glass fiber reinforced thermosetting board and the glass fiber reinforced thermoplastic board. The production equipment of the composite board comprises a conveying structure, a first oven, a second oven, a forming pair roller and a shaping roller, wherein the glass fiber reinforced thermosetting board enters the first oven through the conveying structure, a layer of glass fiber reinforced thermoplastic board is arranged on the surface of the cured glass fiber reinforced thermosetting board, enters the second oven through the conveying structure, is heated and melted through the second oven, and then sequentially passes through the forming pair roller and the shaping roller. The invention also provides a preparation method of the composite board with convenient operation. The invention has reasonable structure, good performance, safety and reliability, and the production equipment can realize continuous production.
Description
Technical Field
The invention relates to production equipment and a preparation method thereof, in particular to glass fiber reinforced thermosetting thermoplastic composite board, production equipment and a preparation method thereof, which belong to the field of composite materials.
Background
The thermosetting resin is a resin system which forms a reticular structure through intermolecular crosslinking, is not softened and can not be dissolved even after being cured completely, and has the characteristics of high hardness, good strength and large modulus. The thermoplastic resin is a resin which is bonded together through intermolecular forces and has the characteristics of softening by heating and cooling hardening, and has the characteristics of excellent shock resistance, lower density and recoverability.
Because of the difference of the properties and characteristics of the thermosetting resin and the thermoplastic resin, the thermosetting resin including glass fiber reinforced thermosetting resin has wide application in the fields with high strength and modulus requirements, and the thermoplastic resin including glass fiber reinforced thermoplastic resin has more application in the aspects of impact resistance requirements, weight reduction, recycling and the like.
Therefore, the thermosetting material and the thermoplastic material are organically combined on the same plate, one side of the plate is made of the thermosetting material, and the other side of the plate is made of the thermoplastic material, so that the advantages of thermoplastic and thermosetting can be simultaneously exerted, and the application range of the plate is widened.
However, thermosetting resins and thermoplastic resins have great differences in molecular structure and properties, and Particularly for Polypropylene (PP) and Polyethylene (PE) resins, it is difficult to achieve the combination of thermoplastic and thermosetting by an adhesive method.
The existing thermosetting thermoplastic connection mode generally adopts an adhesive or mechanical connection mode. If an adhesive is used to connect the thermosetting and thermoplastic materials, on the one hand, the surface of the thermosetting and thermoplastic (especially thermoplastic PP or PE) materials needs to be subjected to pretreatment such as cleaning, polishing, activating, etc., and on the other hand, the adhesive itself is different in performance from the thermosetting and thermoplastic materials to be combined, so that the adhesive is easy to deglue or the adhesive layer is easy to fail.
The mechanical connection mode is adopted to easily generate stress concentration at the mechanical connection position, so that the combined materials cannot bear higher external force action, and the material damage is easy to generate.
In chinese patent publication No. 101570067, publication No. 2009, 11, 04, an invention patent named "method of combining thermoplastic material with thermoset composite material" is disclosed. The thermoplastic material is selected and pre-cut, and then the cut thermoplastic material is put into a processing mould; then the thermosetting composite material is placed on the thermoplastic material in the mould, and the thermosetting composite material and the thermoplastic material placed in the mould are heated and pressurized; finally, the product with the thermoplastic material on the surface is taken out by opening the mould, and the thermoplastic material and the thermosetting composite material can be well combined by the method, so that the product has the characteristics of thick and thin meat and high strength, the competitiveness of the product is improved, but stress concentration is easy to occur at the joint, so that the combined material cannot bear higher external force action, and the material is easy to damage, so the defect still exists.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the glass fiber reinforced thermosetting thermoplastic composite board and the production equipment with reasonable structural design, good performance, safety and reliability, continuous production realized by arranging the continuous felt layer between the glass fiber reinforced thermosetting board and the glass fiber reinforced thermoplastic board, and convenient operation.
The invention solves the problems by adopting the following technical scheme: the glass fiber reinforced thermosetting thermoplastic composite board comprises a glass fiber reinforced thermosetting board, a continuous felt layer and a glass fiber reinforced thermoplastic board, and is characterized in that: the continuous felt layer is arranged between the glass fiber reinforced thermosetting plate and the glass fiber reinforced thermoplastic plate, thermosetting resin and thermoplastic resin are arranged in the continuous felt layer, the thermosetting resin and the thermoplastic resin form an interpenetrating network structure in the continuous felt layer, and the continuous felt layer is an interface layer of the thermosetting resin and the thermoplastic resin; through continuous felt layer, realize the combination of thermosetting panel and thermoplastic panel, interpenetrating network form interlock, intensity is high, is difficult for being destroyed, does not also need complicated preliminary treatment, satisfies the user demand.
Preferably, the glass fiber reinforced thermoplastic sheet material of the present invention includes a short fiber reinforced thermoplastic sheet material, a long fiber reinforced thermoplastic sheet material and a continuous fiber reinforced thermoplastic sheet material; and selecting according to actual conditions.
The invention also provides production equipment of the glass fiber reinforced thermosetting thermoplastic composite board, which adopts the glass fiber reinforced thermosetting thermoplastic composite board and is characterized in that: the glass fiber reinforced thermosetting plate is provided with a layer of continuous felt without any resin, the glass fiber reinforced thermosetting plate enters the oven I through the conveying structure, the resin in the glass fiber reinforced thermosetting plate and the continuous felt is solidified to form a transitional continuous felt with one surface containing solidified resin, the surface of the solidified glass fiber reinforced thermosetting plate is provided with a layer of glass fiber reinforced thermoplastic plate, the glass fiber reinforced thermosetting plate enters the oven II through the conveying structure, and the glass fiber reinforced thermoplastic plate is heated and melted through the oven II and then sequentially passes through the functions of the shaping pair roller and the shaping roller; the production equipment is safe and reliable, and continuous production can be realized.
Preferably, the conveying structure of the invention adopts a conveying belt or a conveying roller; for transfer.
Preferably, the glass fiber reinforced thermosetting plate adopts glass fiber fabrics or other glass fiber products containing unsaturated polyester resin or epoxy resin monomers.
The invention also provides a preparation method of the glass fiber reinforced thermosetting thermoplastic composite board, which adopts production equipment of the glass fiber reinforced thermosetting thermoplastic composite board and is characterized in that: the method comprises the following steps: after one surface of the glass fiber reinforced thermosetting plate is covered with a layer of continuous felt without any resin, the glass fiber reinforced thermosetting plate enters a first oven through a conveying structure, unsaturated polyester or epoxy resin is initiated to be cured in a heating mode, a part of resin enters the continuous felt from the glass fiber reinforced thermosetting plate through capillary action while curing, and after the resin in the glass fiber reinforced thermosetting plate and the continuous felt is cured, the continuous felt partially forms a transition state continuous felt with one surface containing cured resin; and then covering a layer of glass fiber reinforced thermoplastic plate on the surface of the cured glass fiber reinforced thermosetting plate, entering the glass fiber reinforced thermoplastic plate into a second oven through a conveying structure, heating and melting the glass fiber reinforced thermoplastic plate in the second oven, enabling thermoplastic resin which is partially melted under the action of a forming pair roller to enter a continuous felt, forming a continuous felt layer with a thermosetting and thermoplastic resin interpenetrating network structure in the continuous felt, and finally cooling and shaping the product under the action of a shaping roller to form the final product.
Preferably, the thickness of the glass fiber reinforced thermosetting plate is 0.5 mm-10 mm; the thickness of the glass fiber reinforced thermoplastic plate is 0.4 mm-6 mm.
Preferably, the continuous mat of the present invention has a grammage of 100 g/square meter to 1000 g/square meter.
Preferably, the temperature of the first baking oven is 50-150 ℃; the temperature of the second oven ranges from 180 ℃ to 250 ℃.
Preferably, the pressure range of the forming roller is 0.1 MPa-10 MPa, and the temperature range is 80 ℃ to 180 ℃; the pressure range of the shaping roller is 0.1 MPa-5 MPa, and the temperature range is 10 ℃ to 80 ℃.
Compared with the prior art, the invention has the following advantages and effects: the continuous glass fiber continuous felt is used as an interface, one surface of the continuous felt is impregnated with thermosetting resin, and the other surface of the continuous felt is impregnated with thermoplastic resin, so that an interface gradual change layer from thermosetting to thermoplastic is formed, and the combination of thermosetting and thermoplastic plates is realized.
Drawings
FIG. 1 is a schematic view of a glass fiber reinforced thermoset and glass fiber reinforced thermoplastic sheet material in accordance with an embodiment of the present invention.
FIG. 2 is a schematic diagram of an apparatus for producing glass fiber reinforced thermoset thermoplastic composite board and a process for preparing the same according to an embodiment of the present invention.
In the figure: the glass fiber reinforced thermosetting plate 1, the continuous felt 2, the glass fiber reinforced thermoplastic plate 3, the transitional continuous felt 21, the continuous felt layer 22, the conveying structure 51, the first oven 52, the second oven 53, the forming pair roller 54 and the shaping roller 55.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and not limited to the following examples.
Examples
Referring to fig. 1 to 2, the glass fiber reinforced thermosetting thermoplastic composite board comprises a glass fiber reinforced thermosetting board 1, a continuous felt layer 22 and a glass fiber reinforced thermoplastic board 3, wherein the continuous felt layer 22 is arranged between the glass fiber reinforced thermosetting board 1 and the glass fiber reinforced thermoplastic board 3, thermosetting resin and thermoplastic resin are arranged in the continuous felt layer 22, and the thermosetting resin and the thermoplastic resin form an interpenetrating network structure inside the continuous felt layer 22, and the continuous felt layer 22 is an interface layer of the thermosetting resin and the thermoplastic resin.
The glass fiber reinforced thermoplastic sheet 3 of the present embodiment includes a short fiber reinforced thermoplastic sheet, a long fiber reinforced thermoplastic sheet, and a continuous fiber reinforced thermoplastic sheet.
The production equipment of the glass fiber reinforced thermosetting thermoplastic composite board in this embodiment includes a conveying structure 51, a first oven 52, a second oven 53, a forming pair roller 54 and a shaping roller 55, wherein a layer of continuous felt 2 without any resin is arranged on the glass fiber reinforced thermosetting board 1, the glass fiber reinforced thermosetting board 1 enters the first oven 52 through the conveying structure 51, the resin in the glass fiber reinforced thermosetting board 1 and the continuous felt is solidified to form a transition state continuous felt 21 with one surface containing solidified resin, the surface of the solidified glass fiber reinforced thermosetting board 1 is provided with a layer of glass fiber reinforced thermoplastic board 3, the glass fiber reinforced thermosetting board enters the second oven 53 through the conveying structure 51, the glass fiber reinforced thermoplastic board 3 is heated and melted through the second oven 53, and then the glass fiber reinforced thermosetting board 3 sequentially passes through the functions of the forming pair roller 54 and the shaping roller 55.
The conveying structure 51 of the present embodiment employs a conveying belt or a conveying roller.
The glass fiber reinforced thermosetting plate 1 of the embodiment adopts glass fiber fabrics or other glass fiber products containing unsaturated polyester resin or epoxy resin monomers; the unsaturated polyester or epoxy resin is added with substances such as initiator, etc., which can initiate polymerization reaction under the condition of heating, and finally form the solidified plate.
The preparation process of the glass fiber reinforced thermosetting thermoplastic composite board in the embodiment is as follows: after one surface of the glass fiber reinforced thermosetting plate 1 is covered with a layer of continuous felt 2 without any resin, the glass fiber reinforced thermosetting plate 1 enters a first oven 52 through a conveying structure 51, unsaturated polyester or epoxy resin is initiated to be cured in a heating mode, a part of resin enters the continuous felt from the glass fiber reinforced thermosetting plate 1 through capillary action while being cured, and after the resin in the glass fiber reinforced thermosetting plate 1 and the continuous felt is cured, the continuous felt forms a transition state continuous felt 21 with one surface containing cured resin; and then covering a layer of glass fiber reinforced thermoplastic plate 3 on the surface of the cured glass fiber reinforced thermosetting plate 1, feeding the glass fiber reinforced thermoplastic plate into a second oven 53 through a conveying structure 51, heating and melting the glass fiber reinforced thermoplastic plate 3 in the second oven 53, feeding thermoplastic resin which is partially melted under the action of a forming pair roller 54 into a continuous felt 21, forming a continuous felt layer 22 with a thermosetting and thermoplastic resin interpenetrating network structure in the continuous felt, and finally cooling and shaping the product under the action of a shaping roller 55 to form the final product.
The thickness of the glass fiber reinforced thermosetting plate 1 is 0.5 mm-10 mm; the thickness of the glass fiber reinforced thermoplastic plate 3 is 0.4 mm-6 mm.
The continuous mat of this embodiment has a gram weight of 100 g/square meter to 1000 g/square meter.
The temperature of oven one 52 of this example ranges from 50 deg.c to 150 deg.c; the temperature of the second oven 53 ranges from 180 ℃ to 250 ℃.
The pressure of the forming roller 54 of the embodiment ranges from 0.1MPa to 10MPa, and the temperature ranges from 80 ℃ to 180 ℃; the pressure of the shaping roller 55 is in the range of 0.1MPa to 5MPa, and the temperature is in the range of 10 ℃ to 80 ℃.
According to the embodiment, a layer of continuous felt is added to the surface of the thermosetting plate in the forming process, partial impregnation of the continuous felt is realized by using thermosetting resin with rich surfaces, the thermosetting plate is used as a base plate for pressing the thermoplastic plate after solidification, the thermoplastic resin in the thermoplastic plate is heated and melted, the continuous felt is impregnated by the thermoplastic resin, a thermosetting thermoplastic mutually fused interface is finally formed at the continuous felt, organic combination of the thermosetting plate and the thermoplastic plate is realized, and continuous production is realized by designed production equipment.
The thermosetting resin makes the thermosetting resin monomer in the glass fiber fabric enter the continuous felt through capillary action, and the combination of the glass fiber fabric reinforced thermosetting plate system and the continuous fiber felt is realized through the action of heating and curing.
The thermoplastic resin enters the continuous fiber felt under the action of capillary action and external pressure, and the formation of a thermosetting and thermoplastic interpenetrating network inside the continuous fiber felt is realized, so that the thermosetting and thermoplastic are mutually combined and form a whole through the continuous fiber felt as an interface.
The glass fiber reinforced unsaturated polyester resin and the glass fiber reinforced PP or PE plate can be combined, or the glass fiber reinforced epoxy resin and the glass fiber reinforced PP or PE plate can be combined.
In the embodiment, the combination of thermosetting and thermoplastic is realized by arranging a layer of fiber continuous felt as the transition layer, so that the damage caused by stress concentration at the connecting part due to mechanical connection is avoided, and the complex pretreatment procedure added by adopting an adhesive is also avoided.
From the above description, those skilled in the art will be able to practice.
In addition, it should be noted that the specific embodiments described in the present specification may vary from part to part, from name to name, etc., and the above description in the present specification is merely illustrative of the structure of the present invention. All equivalent or simple changes of the structure, characteristics and principle according to the inventive concept are included in the protection scope of the present patent. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the scope of the invention as defined in the accompanying claims.
Claims (4)
1. The preparation method of the glass fiber reinforced thermosetting thermoplastic composite board comprises glass fiber reinforced thermosetting thermoplastic composite board and production equipment of the glass fiber reinforced thermosetting thermoplastic composite board, wherein the glass fiber reinforced thermosetting thermoplastic composite board comprises a glass fiber reinforced thermosetting board, a continuous felt layer and a glass fiber reinforced thermoplastic board, the continuous felt layer is arranged between the glass fiber reinforced thermosetting board and the glass fiber reinforced thermoplastic board, thermosetting resin and thermoplastic resin are arranged in the continuous felt layer, an interpenetrating network structure is formed inside the continuous felt layer by the thermosetting resin and the thermoplastic resin, and the continuous felt layer is an interface layer of the thermosetting resin and the thermoplastic resin; the production equipment of the glass fiber reinforced thermosetting composite board comprises a conveying structure, a first oven, a second oven, a forming pair roller and a shaping roller, wherein a layer of continuous felt without any resin is arranged on the glass fiber reinforced thermosetting board, the glass fiber reinforced thermosetting board enters the first oven through the conveying structure, the resin in the glass fiber reinforced thermosetting board and the continuous felt is cured to form a transition state continuous felt with one surface containing cured resin, the surface of the cured glass fiber reinforced thermosetting board is provided with a layer of glass fiber reinforced thermoplastic board, the glass fiber reinforced thermosetting board enters the second oven through the conveying structure, the glass fiber reinforced thermoplastic board is heated and melted through the second oven, and then sequentially passes through the forming pair roller and the shaping roller, and the production equipment is characterized in that: the method comprises the following steps: after one surface of the glass fiber reinforced thermosetting plate is covered with a layer of continuous felt without any resin, the glass fiber reinforced thermosetting plate enters a first oven through a conveying structure, unsaturated polyester or epoxy resin is initiated to be cured in a heating mode, a part of resin enters the continuous felt from the glass fiber reinforced thermosetting plate through capillary action while curing, and after the resin in the glass fiber reinforced thermosetting plate and the continuous felt is cured, the continuous felt partially forms a transition state continuous felt with one surface containing cured resin; covering a layer of glass fiber reinforced thermoplastic plate on the surface of the cured glass fiber reinforced thermosetting plate, entering the glass fiber reinforced thermoplastic plate into a second oven through a conveying structure, heating and melting the glass fiber reinforced thermoplastic plate in the second oven, enabling thermoplastic resin which is partially melted under the action of a forming pair roller to enter a continuous felt, forming a continuous felt layer with a thermosetting and thermoplastic resin interpenetrating network structure in the continuous felt, and finally cooling and shaping the product under the action of a shaping roller to form a final product; the thickness of the glass fiber reinforced thermosetting plate is 0.5 mm-10 mm; the thickness of the glass fiber reinforced thermoplastic plate is 0.4 mm-6 mm; the gram weight of the continuous felt is 100 g/square meter-1000 g/square meter; the temperature of the first baking oven ranges from 50 ℃ to 150 ℃; the temperature of the second baking oven ranges from 180 ℃ to 250 ℃; the pressure range of the forming pair roller is 0.1 MPa-10 MPa, and the temperature range is 80 ℃ to 180 ℃; the pressure range of the shaping roller is 0.1 MPa-5 MPa, and the temperature range is 10 ℃ to 80 ℃.
2. The method for preparing the glass fiber reinforced thermosetting thermoplastic composite board according to claim 1, wherein the method comprises the following steps: the glass fiber reinforced thermoplastic sheet material comprises a short fiber reinforced thermoplastic sheet material, a long fiber reinforced thermoplastic sheet material and a continuous fiber reinforced thermoplastic sheet material.
3. The method for preparing the glass fiber reinforced thermosetting thermoplastic composite board according to claim 1, wherein the method comprises the following steps: the conveying structure adopts a conveying belt or a conveying roller.
4. The method for preparing the glass fiber reinforced thermosetting thermoplastic composite board according to claim 1, wherein the method comprises the following steps: the glass fiber reinforced thermosetting plate adopts glass fiber fabric containing unsaturated polyester resin or epoxy resin monomer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711456345.8A CN108001018B (en) | 2017-12-28 | 2017-12-28 | Preparation method of glass fiber reinforced thermosetting thermoplastic composite board |
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| CN201711456345.8A CN108001018B (en) | 2017-12-28 | 2017-12-28 | Preparation method of glass fiber reinforced thermosetting thermoplastic composite board |
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| CN108001018B true CN108001018B (en) | 2024-05-17 |
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| CN109825979A (en) * | 2019-03-12 | 2019-05-31 | 常小琼 | A kind of glass fiber net molding with cloth device and its operating method |
| WO2021033992A1 (en) * | 2019-08-20 | 2021-02-25 | 주식회사 엘지하우시스 | Hybrid-type fiber-reinforced composite material and apparatus for producing same |
| CN110712397A (en) * | 2019-09-12 | 2020-01-21 | 青岛中集创赢复合材料科技有限公司 | Composite board and continuous production system and continuous production method thereof |
| CN114153016A (en) * | 2021-12-10 | 2022-03-08 | 苏州多凯复合材料有限公司 | Light-relaxing glass fiber reinforced unsaturated resin plate |
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| GB1280995A (en) * | 1968-05-27 | 1972-07-12 | Maxwell Alvin Earl Rhiando | Improvements in or relating to laminates or methods of manufacturing laminates |
| CN1204280A (en) * | 1995-12-15 | 1999-01-06 | 欧文斯科尔宁格公司 | Glass fibre mat thermoplastic product |
| CN102452203A (en) * | 2010-11-02 | 2012-05-16 | 上海杰事杰新材料(集团)股份有限公司 | Anti-skidding thermoplastic composite material |
| CN105313393A (en) * | 2014-05-28 | 2016-02-10 | 青岛顺益新材料科技有限公司 | Novel composite material and production method thereof |
| CN106273555A (en) * | 2016-08-05 | 2017-01-04 | 振石集团华美新材料有限公司 | A kind of high glass fiber content continuous fiber reinforced thermoplastic material, Preparation equipment and preparation method thereof |
| CN207931238U (en) * | 2017-12-28 | 2018-10-02 | 振石集团华美新材料有限公司 | A kind of glass fiber reinforced thermosetting thermoplastic composite board material and production equipment |
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| JP2015113385A (en) * | 2013-12-10 | 2015-06-22 | パナソニックＩｐマネジメント株式会社 | Adhesive composition for steel sheet and thermoplastic resin coating steel sheet using the same |
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