CN111391437A - Carriage plate and preparation method thereof - Google Patents

Carriage plate and preparation method thereof Download PDF

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Publication number
CN111391437A
CN111391437A CN202010238138.0A CN202010238138A CN111391437A CN 111391437 A CN111391437 A CN 111391437A CN 202010238138 A CN202010238138 A CN 202010238138A CN 111391437 A CN111391437 A CN 111391437A
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China
Prior art keywords
layer
fiber reinforced
panel
reinforced resin
prepreg tape
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Withdrawn
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CN202010238138.0A
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Chinese (zh)
Inventor
余启勇
董会娜
潘广镇
刘光亚
姚栋嘉
李倩
杨红霞
张东生
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Gongyi Van Research Yihui Composite Material Co Ltd
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Gongyi Van Research Yihui Composite Material Co Ltd
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Priority to CN202010238138.0A priority Critical patent/CN111391437A/en
Publication of CN111391437A publication Critical patent/CN111391437A/en
Withdrawn legal-status Critical Current

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    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a 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
    • 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
    • B32B27/08—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 of 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/281—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyimides
    • 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
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/18—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
    • B32B3/20—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side of hollow pieces, e.g. tubes; of pieces with channels or cavities
    • 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
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/06—Interconnection of layers permitting easy separation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/04—Enclosed load compartments ; Frameworks for movable panels, tarpaulins or side curtains
    • 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
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • 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
    • 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
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0221—Vinyl resin
    • B32B2266/0235—Vinyl halide, e.g. PVC, PVDC, PVF, PVDF
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • 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
    • B32B2605/00—Vehicles

Abstract

The invention belongs to the technical field of preparation of carriage plates, and discloses a carriage plate and a preparation method thereof. Including first and second panel layer, sandwich layer, skeleton supporting layer, the sandwich layer includes a plurality of foam block, and the skeleton supporting layer is latticed, the skeleton supporting layer sets up between first panel layer and second panel layer, and the foam block is filled in the net of skeleton supporting layer, skeleton supporting layer and first panel layer, second panel layer integrated into one piece. The preparation steps are as follows: sequentially layering an release film, a first demolding cloth, a first fiber reinforced resin prepreg tape and a latticed fiber reinforced resin prepreg tape frame from bottom to top; pouring the resin foam composition into a latticed fiber reinforced resin prepreg tape frame; laying a second fiber reinforced resin prepreg tape-second release cloth; hot-pressing, curing and molding, and demolding. The carriage plate has greatly improved mechanical properties.

Description

Carriage plate and preparation method thereof
Technical Field
The invention belongs to the technical field of preparation of carriage plates, and particularly relates to a carriage plate and a preparation method thereof.
Background
With the demand of social development, automobiles have become an indispensable vehicle for life. In order to meet the high-quality life and use requirements, the light weight of automobiles is a hot spot for the research of the automobile industry and the new material industry at present. The light weight of the automobile reduces the overall quality of the automobile as much as possible on the premise of ensuring the hardness and the safety performance of the automobile, thereby improving the power utilization rate of the automobile, reducing the fuel consumption and reducing the exhaust pollution. In addition, the acceleration performance of the automobile is improved after the automobile is lightened, and the braking distance is reduced due to small inertia during collision. Furthermore, carbon dioxide emissions can be reduced by about 5 g/km for every 100 kg of vehicle. Therefore, the energy-saving and environment-friendly benefits of the light weight of the automobile are not inferior to those of the automobile engine fuel-saving technology. The requirements for the automobile body and the accessory materials thereof, new materials and new processes are gradually improved, and the light box body is produced.
The van is a carriage with an independent closed structure or an integral closed structure carriage connected with a cab into a whole, and is mainly used for carrying goods. The carriage board of traditional van can adopt various steel sheet, aluminium flat board or aluminum alloy flute to make, and not only weight is heavy, the price is noble, and heat conduction speed is fast, is unfavorable for keeping the low temperature of carriage board.
Compared with a metal framework, at present, a glass fiber reinforced composite material is mostly adopted as a panel layer, and a foam material is adopted as a carriage body of a sandwich layer. The glass fiber reinforced composite material carriage plate not only accords with the trend of the development of the lightweight era of the whole automobile, but also compounds the national policy of environmental protection and energy conservation, and more importantly accords with the current national conditions of China, so that the glass fiber reinforced composite material carriage plate has good development and application prospects. However, the glass fiber reinforced composite material prepared at present has the defects of low bonding strength, easy bubbling and the like. The sandwich material mostly adopts honeycomb core materials, wood core materials, organic foams and the like, but the sandwich material and the glass fiber reinforced composite material panel have the phenomena of low bonding strength, layering and the like so as to reduce the mechanical property of the whole carriage plate.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a carriage plate and a preparation method thereof.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a carriage plate comprises a first panel layer, a second panel layer, a sandwich layer and a framework supporting layer, wherein the sandwich layer comprises a plurality of foam blocks, the framework supporting layer is latticed, the framework supporting layer is arranged between the first panel layer and the second panel layer, the foam blocks are filled in grids of the framework supporting layer, and the framework supporting layer, the first panel layer and the second panel layer are integrally formed; the first panel layer, the second panel layer and the framework supporting layer are made of fiber reinforced resin composite materials at the same time; the foam block is a polyurethane foam block, a PVC foam block or a phenolic foam block.
Preferably, the fiber in the fiber reinforced resin composite material is glass fiber, carbon fiber, boron fiber or aramid fiber, and the resin is unsaturated polyester, vinyl resin, polyurethane resin, epoxy resin or phenolic resin.
Preferably, the thickness of the first panel layer is 0.5-5 mm, the thickness of the second panel layer is 0.5-5 mm, and the thickness of the framework support layer is 5-50 mm.
Preferably, the grid shape of the framework supporting layer is quadrilateral, pentagonal or hexagonal.
The preparation method comprises the following steps:
(1) sequentially layering an release film, a first demolding cloth, a first fiber reinforced resin prepreg tape and a latticed fiber reinforced resin prepreg tape frame from bottom to top;
(2) pouring the resin foam composition corresponding to the foam block into the grids of the grid-shaped fiber reinforced resin prepreg tape frame;
(3) sequentially paving a second fiber reinforced resin prepreg tape and second demolding cloth on the upper surface of the latticed fiber reinforced resin prepreg tape frame to obtain a laminated body;
(4) placing the laminated body which is laminated in the step (3) on a hot press for hot pressing, curing and molding;
(5) demolding after curing is finished to obtain the carriage plate;
preferably, the fibers and the resins in the first fiber reinforced resin prepreg tape, the second fiber reinforced resin prepreg tape and the grid-shaped fiber reinforced resin prepreg tape frame correspond to the fibers and the resins in the fiber reinforced resin composite material, respectively.
Preferably, the grid shape of the grid-shaped fiber reinforced resin prepreg tape frame is a quadrangle, a pentagon or a hexagon.
Preferably, in the step (4), the pressure of the hot-press curing molding is 0.5-5 Mpa, the curing temperature is 20-180 ℃, and the curing time is 0.5-12 h.
Preferably, the release film is a PET film, a PE film, a PI film or an OPP film; the first demolding cloth and the second demolding cloth are made of polytetrafluoroethylene demolding cloth, nylon 66 demolding cloth, nylon 6 demolding cloth or polyester demolding cloth.
In the invention, the resin foam composition corresponding to the foam block is a polyurethane foam composition, a PVC foam composition and a phenolic foam composition, and refers to raw material compositions before foaming, and can be selected from one of the mature foam preparation processes in the prior art, for example, the polyurethane foam composition refers to the Chinese patent 'preparation method of temperature-resistant rigid polyurethane foam', the patent number Z L200610130410.3, the PVC foam composition refers to the Chinese patent 'antistatic PVC foam and preparation method thereof', the patent number Z L201410257506.0, and the phenolic foam composition refers to the Chinese patent 'preparation method of phenolic foam plate', the patent number Z L201110010748.6.
Has the advantages that:
(1) the carriage plate prepared by the invention has the characteristics of light weight and heat insulation, and the mechanical property of the carriage plate is greatly improved compared with that of the existing carriage plate preparation technology;
(2) according to the invention, the sandwich layer is spliced by adopting the foam blocks, the resin foaming composition is subjected to in-situ foaming molding in the latticed fiber reinforced resin prepreg tape frame, and is integrally cured and molded with the panel layer through hot pressing, the framework supporting layer is formed among the foam blocks, and is a fiber reinforced resin composite material, so that the good mechanical property of the framework supporting layer can support the foam blocks, the mechanical property of the sandwich layer is greatly improved, the mechanical property of the whole core material is further improved, the obtained carriage plate has excellent impact resistance and compression resistance, and the application occasion of the plate is enlarged;
(3) the invention adopts the mode of integrally curing and molding the framework supporting layer and the panel layer, greatly improves the bonding strength of the sandwich layer and the panel layer, and avoids the phenomenon of low bonding strength delamination of the sandwich layer and the panel layer caused by the traditional bonding method;
(4) the carriage plate is integrally cured and molded, the molding period is short, the operation is simple and convenient, the surface of the prepared carriage body is smooth and clean, the attractiveness is increased, the large-scale industrialization requirement can be met, the carriage plates with different sizes and thicknesses can be prepared according to the requirement, and the application range of the carriage plate on different vehicle types is expanded.
Drawings
FIG. 1: the invention discloses a structural schematic diagram of a carriage plate;
FIG. 2: a schematic front view structure diagram of a latticed fiber reinforced resin prepreg tape frame (the latticed shape is a regular quadrangle);
FIG. 3: a schematic plan view structure diagram of a latticed fiber reinforced resin prepreg tape frame (the latticed shape is a regular quadrangle);
in the figure: 1-a first panel layer; 2-a second panel layer; 3-a foam block; 4-a framework support layer; 5-fiber reinforced resin prepreg tape; 6 grids.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that the following examples are illustrative only and are not intended to limit the scope of the present invention.
Example 1
As shown in fig. 1, a car compartment panel includes a first panel layer 1, a second panel layer 2, a sandwich layer, and a framework support layer 4, where the sandwich layer is disposed between the first panel layer 1 and the second panel layer 2, the sandwich layer includes a plurality of foam blocks 3, the framework support layer 4 is in a grid shape (the grid shape is a regular quadrilateral), the framework support layer 4 is disposed between the first panel layer 4 and the second panel layer 4, the foam blocks 3 are filled in the grids of the framework support layer 4, and the framework support layer 4, the first panel layer 1, and the second panel layer 2 are integrally formed by curing;
the first panel layer 1, the second panel layer 2 and the framework supporting layer 4 are made of glass fiber reinforced unsaturated polyester composite materials; the foam block 3 is a PVC foam block; the thickness of first panel layer 1 is 1.2 mm, and the thickness of second panel 2 is 1.2 mm, the thickness of skeleton supporting layer 4 is 10 mm.
The preparation method of the carriage plate comprises the following preparation steps:
(1) paving: sequentially layering an release film, first demolding cloth, a first fiber reinforced resin prepreg tape (sheet) and a latticed fiber reinforced resin prepreg tape frame (the latticed shape is a regular quadrangle) from bottom to top; the structure of the latticed fiber reinforced resin prepreg tape frame is shown in fig. 2 and fig. 3, and comprises a fiber reinforced resin prepreg tape 5, wherein a plurality of grids 6 are uniformly distributed on the fiber reinforced resin prepreg tape 5;
(2) pouring a PVC resin foam composition (refer to the raw material composition disclosed in example 1 of patent No. Z L201410257506.0) corresponding to the foam block 3 into the grid 6 of the grid-shaped fiber reinforced resin prepreg tape frame;
(3) sequentially paving a second fiber reinforced resin prepreg tape (sheet-shaped) and a second demolding cloth on the upper surface of the latticed fiber reinforced resin prepreg tape frame to obtain a laminated body;
(4) placing the laminated body which is laminated in the step (3) on a hot press, and curing for 1.5 hours under the conditions of 1 Mpa and 80 ℃;
(5) demolding after curing is finished to obtain the carriage plate;
the first fiber reinforced resin prepreg tape and the second fiber reinforced resin prepreg tape are glass fiber reinforced unsaturated polyester prepreg tapes, and the latticed fiber reinforced resin prepreg tape frame is a latticed glass fiber reinforced unsaturated polyester prepreg tape frame.
The release film is a PI film; the first demolding cloth and the second demolding cloth are nylon 66 demolding cloth;
the density of the carriage board prepared by the embodiment is 0.30 g/cm3The compressive strength was 3.6 MPa.

Claims (8)

1. A carriage plate, which is characterized in that: the carriage board comprises a first panel layer, a second panel layer, a sandwich layer and a framework supporting layer, wherein the sandwich layer comprises a plurality of foam blocks, the framework supporting layer is latticed, the framework supporting layer is arranged between the first panel layer and the second panel layer, the foam blocks are filled in grids of the framework supporting layer, and the framework supporting layer is integrally formed with the first panel layer and the second panel layer; the first panel layer, the second panel layer and the framework supporting layer are made of fiber reinforced resin composite materials at the same time; the foam block is a polyurethane foam block, a PVC foam block or a phenolic foam block.
2. The car panel of claim 1, wherein: the fiber in the fiber reinforced resin composite material is glass fiber, carbon fiber, boron fiber or aramid fiber, and the resin is unsaturated polyester, vinyl resin, polyurethane resin, epoxy resin or phenolic resin.
3. The car panel of claim 1, wherein: the thickness of the first panel layer is 0.5-5 mm, the thickness of the second panel layer is 0.5-5 mm, and the thickness of the framework support layer is 5-50 mm.
4. The car panel of claim 1, wherein: the grid shape of the framework supporting layer is quadrilateral, pentagonal or hexagonal.
5. A method of manufacturing a car body panel according to any one of claims 1 to 4, characterized in that the steps of manufacturing are as follows:
(1) sequentially layering an release film, a first demolding cloth, a first fiber reinforced resin prepreg tape and a latticed fiber reinforced resin prepreg tape frame from bottom to top;
(2) pouring the resin foam composition corresponding to the foam block into the grids of the grid-shaped fiber reinforced resin prepreg tape frame;
(3) sequentially paving a second fiber reinforced resin prepreg tape and second demolding cloth on the upper surface of the latticed fiber reinforced resin prepreg tape frame to obtain a laminated body;
(4) placing the laminated body which is laminated in the step (3) on a hot press for hot pressing, curing and molding;
(5) demolding after curing is finished to obtain the carriage plate;
the fiber and the resin in the first fiber reinforced resin prepreg tape, the second fiber reinforced resin prepreg tape and the latticed fiber reinforced resin prepreg tape frame respectively correspond to the fiber and the resin in the fiber reinforced resin composite material.
6. The method of making a car body panel of claim 5, wherein: the grid shape of the grid-shaped fiber reinforced resin prepreg tape frame is quadrilateral, pentagonal or hexagonal.
7. The method of making a car body panel of claim 5, wherein: in the step (4), the pressure of hot-pressing curing molding is 0.5-5 Mpa, the curing temperature is 20-180 ℃, and the curing time is 0.5-12 h.
8. The method of making a car body panel of claim 5, wherein: the release film is a PET film, a PE film, a PI film or an OPP film; the first demolding cloth and the second demolding cloth are made of polytetrafluoroethylene demolding cloth, nylon 66 demolding cloth, nylon 6 demolding cloth or polyester demolding cloth.
CN202010238138.0A 2020-03-30 2020-03-30 Carriage plate and preparation method thereof Withdrawn CN111391437A (en)

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN113370605A (en) * 2021-05-18 2021-09-10 上海市富力达科技股份有限公司 Carbon fiber composite material plate with sandwich structure and preparation process thereof
CN114293726A (en) * 2022-01-06 2022-04-08 福建永中利实业有限公司 Environment-friendly composite wallboard for house interior decoration

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CN101067343A (en) * 2007-04-10 2007-11-07 南京工业大学 Grid structural reinforced composite material sandwich structure
CN101342807A (en) * 2008-09-01 2009-01-14 天津工业大学 Foam sandwich extensional organization composite material and method of producing the same
CN101954761A (en) * 2010-08-03 2011-01-26 南京工业大学 Spatial fiber web-reinforced composite material sandwich structure part
CN107187150A (en) * 2017-05-26 2017-09-22 武汉理工大学 Thermal-insulating type shearing resistance formula frp sandwich construction and preparation method thereof

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CN101032876A (en) * 2007-04-10 2007-09-12 南京工业大学 Lattice enhanced type composite material sandwich structure
CN101067343A (en) * 2007-04-10 2007-11-07 南京工业大学 Grid structural reinforced composite material sandwich structure
CN101342807A (en) * 2008-09-01 2009-01-14 天津工业大学 Foam sandwich extensional organization composite material and method of producing the same
CN101954761A (en) * 2010-08-03 2011-01-26 南京工业大学 Spatial fiber web-reinforced composite material sandwich structure part
CN107187150A (en) * 2017-05-26 2017-09-22 武汉理工大学 Thermal-insulating type shearing resistance formula frp sandwich construction and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113370605A (en) * 2021-05-18 2021-09-10 上海市富力达科技股份有限公司 Carbon fiber composite material plate with sandwich structure and preparation process thereof
CN114293726A (en) * 2022-01-06 2022-04-08 福建永中利实业有限公司 Environment-friendly composite wallboard for house interior decoration

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Application publication date: 20200710