CN112519371A - Novel high-thermoplasticity PP (polypropylene) super-thick plate and processing method thereof - Google Patents

Novel high-thermoplasticity PP (polypropylene) super-thick plate and processing method thereof Download PDF

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CN112519371A
CN112519371A CN202011298631.8A CN202011298631A CN112519371A CN 112519371 A CN112519371 A CN 112519371A CN 202011298631 A CN202011298631 A CN 202011298631A CN 112519371 A CN112519371 A CN 112519371A
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epoxy resin
parts
composite material
carbon fiber
group
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Chinese (zh)
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周益坚
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Taicang Longyi Plastic Industry Co ltd
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Taicang Longyi Plastic Industry Co ltd
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Abstract

The invention discloses a novel high-thermoplasticity PP (polypropylene) super-thick plate and a processing method thereof, belonging to the technical field of novel processing and application of high polymer materials. According to the novel high-thermoplasticity PP super-thick plate, due to the adoption of the multilayer laminated structure, the plate has scratch resistance, the modified plate layer has high impact resistance, the physical characteristics of the plate can be greatly improved, and the universality of the plate is enhanced. The processing method of the novel high-thermoplasticity PP super-thick plate has the advantages of simple process, quick forming, production efficiency improvement and production cost reduction, thereby meeting the industrial application in the industrial field.

Description

Novel high-thermoplasticity PP (polypropylene) super-thick plate and processing method thereof
Technical Field
The invention belongs to the technical field of novel processing and application of high polymer materials, and particularly relates to a novel high-thermoplasticity PP (polypropylene) super-thick plate. The invention also relates to a processing method of the novel high-thermoplasticity PP super-thick plate.
Background
The polypropylene plastic plate (PP plate for short) is a semi-crystalline material. It is harder and has a higher melting point than PE. Typically, PP is modified by the addition of glass fibers, metal additives or thermoplastic rubbers. However, the prior art has the following technical problems: low strength, poor flame retardancy and easy oxidation.
The honeycomb plate is formed by improving the PP plate, is also called as a sandwich plate, is obtained by adding a honeycomb interlayer between two plate surfaces, and has the characteristics of light weight and high strength, wherein the PP honeycomb plate has the characteristics of light weight, high strength, water resistance, heat insulation, sound insulation, thermoplastic deformation, impact resistance and the like, is particularly suitable for manufacturing various composite sandwich, and can be recycled, so the PP honeycomb plate is widely applied.
However, the existing PP honeycomb plate on the market generally adopts a structure of an upper skin layer, a lower skin layer and a middle PP honeycomb plate, and due to the chemical structure inertia of PP materials, the PP honeycomb plate has high crystallinity, mostly has the characteristics of low surface energy, non-polarity and weak interface layers, and is easy to warp and deform. Chinese patent No. CN205800348U discloses a novel PP honeycomb plate, which has increased strength by adding metal columns into the PP honeycomb plate, but this method not only increases the cost, but also makes the internal structure become abnormally complex, and increases the processing difficulty.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects, the invention aims to provide a novel high-thermoplasticity PP (polypropylene) super-thick plate, and solves the problems of heavy weight, poor strength, easy deformation and the like of a PP plate in the prior art. The processing method for manufacturing the PP ultra-thick plate is provided in a matched mode, and the PP plate with a novel structure is produced.
The technical scheme is as follows: a novel high-thermoplasticity PP (polypropylene) super-thick plate comprises an upper carbon fiber reinforced epoxy resin composite material skin, a lower carbon fiber reinforced epoxy resin composite material skin, a PP honeycomb plate, a group of epoxy resin foams, a group of epoxy resin foam reinforced supports, an upper epoxy resin adhesive film and a lower epoxy resin adhesive film, wherein the cross sections of the upper carbon fiber reinforced epoxy resin composite material skin and the lower carbon fiber reinforced epoxy resin composite material skin are the same, the upper carbon fiber reinforced epoxy resin composite material skin and the lower carbon fiber reinforced epoxy resin composite material skin are just opposite to each other, the PP honeycomb plate is arranged between the upper carbon fiber reinforced epoxy resin composite material skin and the lower carbon fiber reinforced epoxy resin composite material skin, the group of epoxy resin foams and the group of epoxy resin foam reinforced supports are arranged in a one-to-one correspondence manner, and the epoxy resin foams are filled in the epoxy resin foam reinforced supports, the group of epoxy resin foam reinforced supports are respectively arranged in the PP honeycomb plate, the carbon fiber reinforced epoxy resin composite material upper covering is bonded with one end of the PP honeycomb plate through an upper epoxy resin adhesive film, and the carbon fiber reinforced epoxy resin composite material lower covering is bonded with the other end of the PP honeycomb plate through a lower epoxy resin adhesive film.
Further, foretell novel super thick panel of high thermoplasticity PP, the PP honeycomb panel includes a set of parallel arrangement's horizontal PP base plate and a set of parallel arrangement's vertical PP base plate, a set of parallel arrangement's horizontal PP base plate and a set of parallel arrangement's vertical PP base plate are violently indulged the cross arrangement and are formed field word lattice structure, a set of parallel arrangement's horizontal PP base plate and a set of parallel arrangement's vertical PP base plate form a set of PP honeycomb, epoxy foam reinforcing support sets up in the PP honeycomb.
Furthermore, according to the novel high-thermoplasticity PP super-thick plate, the epoxy resin foam reinforced support is diamond-shaped and comprises a first support ring, a second support ring and a middle support ring, wherein the first support ring, the second support ring and the middle support ring are coaxially arranged, the middle support ring is positioned between the first support ring and the second support ring, and the sectional areas of the first support ring, the second support ring and the middle support ring are sequentially arranged from small to large.
Furthermore, foretell novel super thick panel of high thermoplasticity PP, be equipped with a set of V type bracing piece one and a set of cylinder connecting rod one between support ring one and the middle support ring, a set of V type bracing piece one and a set of cylinder connecting rod one all use the center of support ring one to set up according to the mode of annular array to a set of V type bracing piece one and a set of cylinder connecting rod one-to-one set up, the pointed end and the first fixed connection of support ring of V type bracing piece to both ends and the middle support ring fixed connection of V type bracing piece one, cylinder connecting rod one is located the intermediate position of V type bracing piece one, the pointed end fixed connection of one end and V type bracing piece of cylinder connecting rod one to the other end and the middle support ring fixed connection of cylinder connecting rod one.
Furthermore, a group of V-shaped support rods II, a group of cylindrical connecting rods II and a group of V-shaped support rods III are arranged between the support ring II and the middle support ring, the group of V-shaped supporting rods II, the group of cylindrical connecting rods II and the group of V-shaped supporting rods III are all arranged in an annular array mode by taking the center of the supporting ring II as the circle center, the group of V-shaped supporting rods II and the group of V-shaped supporting rods III are arranged in a one-to-one correspondence mode, the two end parts of the V-shaped support rod II are fixedly connected with the two end parts of the V-shaped support rod III, the sections of the V-shaped support rod II and the V-shaped support rod III are rhombic, the tip of the V-shaped support rod II is fixedly connected with the support ring II, the tip of the V-shaped support rod III is fixedly connected with the middle support ring, and the second cylindrical connecting rod is arranged between the end part of the second V-shaped supporting rod connected with the third V-shaped supporting rod and the middle supporting ring.
Furthermore, in the novel high-thermoplasticity PP super-thick plate, the epoxy resin foam comprises foamed epoxy resin and a curing agent, and the foamed epoxy resin comprises epoxy resin, a chemical foaming agent and a nano toughening agent.
Further, the novel high thermoplastic PP super-thick sheet material comprises an E-51 bisphenol a epoxy resin, nano calcium carbonate, 4, -diaminodiphenylmethane, 2-phenylimidazole and acetone, wherein the E-51 bisphenol a epoxy resin, nano calcium carbonate, 4, -diaminodiphenylmethane, 2-phenylimidazole and acetone are in parts by weight:
110-120 parts of E-51 bisphenol A epoxy resin
6-8 parts of nano calcium carbonate
60-68 parts of 4, 4-diaminodiphenylmethane
0.6 to 0.9 portion of 2-phenylimidazole
40-50 parts of acetone.
Further, the novel high-thermoplasticity PP super-thick plate comprises a chemical foaming agent, a foaming agent and a solvent, wherein the chemical foaming agent comprises sodium dodecyl benzene sulfonate, benzenesulfonyl hydrazide, talcum powder, azodicarbonamide, trifluoropropene, rosin resin, sodium bicarbonate, a deodorant, clay powder, calcium carbonate, sodium dodecyl sulfonate and water, and the sodium dodecyl benzene sulfonate, benzenesulfonyl hydrazide, talcum powder, azodicarbonamide, trifluoropropene, rosin resin, sodium bicarbonate, the deodorant, clay powder, calcium carbonate, sodium dodecyl sulfonate and water are calculated according to parts by weight:
10-12 parts of sodium dodecyl benzene sulfonate
Benzenesulfonyl hydrazide 5-15 parts
10-20 parts of talcum powder
10-12 parts of azodicarbonamide
6-10 parts of trifluoropropene
10-20 parts of rosin resin
6-8 parts of sodium bicarbonate
1-3 parts of deodorant
7-9 parts of clay powder
3-5 parts of calcium carbonate
6-8 parts of sodium dodecyl sulfate
60-100 parts of water.
Further, the curing agent comprises alicyclic amine, fatty amine, accelerator and thixotropic agent, and the mixing weight ratio of the alicyclic amine, the fatty amine, the accelerator and the thixotropic agent is as follows:
alicyclic amine 13-20
3-15 parts of fatty amine
2 to 3 of an accelerator
6-15 parts of thixotropic agent.
The invention also provides a processing method of the novel high-thermoplasticity PP super-thick plate, which comprises the following steps:
s1, preparation of epoxy resin: mixing raw materials E-51 bisphenol A epoxy resin, nano calcium carbonate, 4-diaminodiphenylmethane, 2-phenylimidazole and acetone in proportion, heating and stirring uniformly;
s2, uniformly mixing the epoxy resin, the chemical foaming agent and the nano toughening agent in proportion to obtain foamed epoxy resin;
s3, preparation of a curing agent: uniformly mixing alicyclic amine, aliphatic amine, an accelerator and a thixotropic agent in proportion to obtain a curing agent;
s4, placing the PP cellular board into a lower die of the die, placing the epoxy resin foam reinforced bracket in the PP cellular board at one time, wherein the placing rule of the epoxy resin foam reinforced bracket on the PP cellular board is that the adjacent epoxy resin foam reinforced brackets are placed in a vertical reverse direction;
s5, uniformly mixing the foamed epoxy resin obtained in the step S2 and the curing agent obtained in the step S3 in proportion, sequentially injecting the mixture into the honeycomb of each PP honeycomb plate at a constant speed to enable the mixture of the foamed epoxy resin and the curing agent to be filled into the epoxy resin foam reinforced support, closing the upper die and the lower die, heating the die to 40-60 ℃, and foaming for 10-30 minutes to obtain the PP honeycomb plate filled with epoxy resin foam;
s6, taking out the PP honeycomb plate filled with the epoxy resin foam from the die, and placing the PP honeycomb plate filled with the epoxy resin foam in a trimming die for trimming;
s7, placing the lower skin of the carbon fiber reinforced epoxy resin composite material on a workbench, and then stacking the lower epoxy resin adhesive film on the lower skin of the carbon fiber reinforced epoxy resin composite material;
s8, placing the PP honeycomb plate filled with the finished epoxy resin foam in the step S6 on a lower epoxy resin adhesive film for stacking;
s9, stacking an upper epoxy resin adhesive film on the upper end face of the PP honeycomb plate filled with the epoxy resin foam, and finally stacking an upper skin of the carbon fiber reinforced epoxy resin composite material on the upper epoxy resin adhesive film;
s10, putting the upper carbon fiber reinforced epoxy resin composite material skin, the upper epoxy resin adhesive film, the PP honeycomb plate filled with epoxy resin foam, the lower epoxy resin adhesive film and the lower carbon fiber reinforced epoxy resin composite material skin which are sequentially stacked from top to bottom in the step S9 into a mold for heating, then preserving heat, and cooling to obtain a product blank;
and S11, carrying out post-treatment on the product blank obtained in the step S10 to obtain the high-plasticity PP super-thick plate.
The technical scheme shows that the invention has the following beneficial effects: according to the novel high-thermoplasticity PP super-thick plate, due to the adoption of the multilayer laminated structure, the plate has scratch resistance, the modified plate layer has high impact resistance, the physical characteristics of the plate can be greatly improved, and the universality of the plate is enhanced; the high-strength and high-rigidity carbon fiber reinforced epoxy resin composite material is used as the external structural skin, so that the external structural skin is light in weight and high in strength, can realize the effects of heat insulation, sound insulation and impact resistance, meets the requirements of vibration reduction and noise reduction, is low in cost and can be quickly molded; the multi-layer structure connected through the epoxy resin adhesive films has the advantages that the connection among layers is tight, the layers are not prone to layered fracture, the wear resistance, the impact resistance, the buffering performance, the flame retardant performance and the oxidation resistance are good, and the service life is prolonged.
The processing method of the novel high-thermoplasticity PP super-thick plate has the advantages of simple process, quick forming, improvement of production efficiency and reduction of production cost, thereby meeting the industrial application in the industrial field.
Drawings
FIG. 1 is a schematic view of the overall structure of the novel high thermoplastic PP ultra-thick sheet material of the present invention;
FIG. 2 is a cross-sectional view of the novel high thermoplastic PP ultra-thick sheet material according to the present invention;
FIG. 3 is a schematic view of the internal structure of the novel high thermoplastic PP ultra-thick sheet material of the present invention;
FIG. 4 is a layout view of an epoxy foam reinforced bracket according to the present invention;
fig. 5 is a schematic structural view of an epoxy resin foam reinforced bracket according to the present invention.
In the figure: the carbon fiber reinforced epoxy resin composite material comprises an upper carbon fiber reinforced epoxy resin composite material skin 1, a lower carbon fiber reinforced epoxy resin composite material skin 2, a PP cellular board 3, a transverse PP substrate 31, a longitudinal PP substrate 32, a PP cellular 33, epoxy resin foam 4, an epoxy resin foam reinforced support 5, a first support ring 51, a second support ring 52, a middle support ring 53, a first V-shaped support rod 54, a first cylindrical connecting rod 55, a second V-shaped support rod 56, a second cylindrical connecting rod 57, a third V-shaped support rod 58, an upper epoxy resin adhesive film 6 and a lower epoxy resin adhesive film 7 which are arranged in parallel.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Example one
The novel high-thermoplasticity PP super-thick plate shown in figures 1 and 2 comprises an upper carbon fiber reinforced epoxy resin composite material skin 1, a lower carbon fiber reinforced epoxy resin composite material skin 2, a PP cellular board 3, a group of epoxy resin foams 4, a group of epoxy resin foam reinforced supports 5, an upper epoxy resin adhesive film 6 and a lower epoxy resin adhesive film 7, wherein the cross sections of the upper carbon fiber reinforced epoxy resin composite material skin 1 and the lower carbon fiber reinforced epoxy resin composite material skin 2 are the same, the upper carbon fiber reinforced epoxy resin composite material skin 1 and the lower carbon fiber reinforced epoxy resin composite material skin 2 are oppositely arranged, the PP cellular board 3 is arranged between the upper carbon fiber reinforced epoxy resin composite material skin 1 and the lower carbon fiber reinforced epoxy resin composite material skin 2, the group of epoxy resin foams 4 and the group of epoxy resin foam reinforced supports 5 are arranged in a one-to-one correspondence manner, and epoxy resin foam 4 is filled in the epoxy resin foam reinforced support 5, the epoxy resin foam reinforced supports 5 are respectively arranged in the PP cellular board 3, one end of the carbon fiber reinforced epoxy resin composite material upper skin 1 and one end of the PP cellular board 3 are bonded through an upper epoxy resin adhesive film 6, and the other end of the carbon fiber reinforced epoxy resin composite material lower skin 2 and the other end of the PP cellular board 3 are bonded through a lower epoxy resin adhesive film 7.
The PP honeycomb panel 3 shown in fig. 3 includes a set of parallel transverse PP substrates 31 and a set of parallel longitudinal PP substrates 32, the set of parallel transverse PP substrates 31 and the set of parallel longitudinal PP substrates 32 are arranged crosswise to form a grid structure, the set of parallel transverse PP substrates 31 and the set of parallel longitudinal PP substrates 32 form a set of PP honeycombs 33, and the epoxy resin foam reinforced bracket 5 is disposed in the PP honeycombs 33.
The epoxy resin foam reinforced bracket 5 shown in fig. 4 and 5 is diamond-shaped, the epoxy resin foam reinforced bracket 5 comprises a first support ring 51, a second support ring 52 and an intermediate support ring 53, the first support ring 51, the second support ring 52 and the intermediate support ring 53 are coaxially arranged, the intermediate support ring 53 is positioned between the first support ring 51 and the second support ring 52, and the sectional areas of the first support ring 51, the second support ring 52 and the intermediate support ring 53 are arranged in the order from small to large. A group of V-shaped supporting rods 54 and a group of cylindrical connecting rods 55 are arranged between the first supporting ring 51 and the middle supporting ring 53, the group of V-shaped supporting rods 54 and the group of cylindrical connecting rods 55 are arranged in an annular array mode by taking the center of the first supporting ring 51 as a circle center, the group of V-shaped supporting rods 54 and the group of cylindrical connecting rods 55 are arranged in a one-to-one correspondence mode, the tips of the V-shaped supporting rods 54 are fixedly connected with the first supporting ring 51, the two end parts of the V-shaped supporting rods 54 are fixedly connected with the middle supporting ring 53, the cylindrical connecting rods 55 are located in the middle positions of the first V-shaped supporting rods 54, one ends of the cylindrical connecting rods 55 are fixedly connected with the tips of the first V-shaped supporting rods 54, and the other ends of the cylindrical connecting rods 55. A group of V-shaped support rods II 56, a group of cylindrical connecting rods II 57 and a group of V-shaped support rods III 58 are arranged between the second support ring 52 and the middle support ring 53, the group of V-shaped support rods II 56, the group of cylindrical connecting rods II 57 and the group of V-shaped support rods III 58 are all arranged in an annular array mode by taking the center of the support ring II 52 as the center of a circle, the group of the second V-shaped supporting rods 56 and the group of the third V-shaped supporting rods 58 are arranged in a one-to-one correspondence manner, and both end portions of the second V-shaped support rod 56 are fixedly connected with both end portions of the third V-shaped support rod 58, the sections of the V-shaped support rod II 56 and the V-shaped support rod III 58 are rhombic, the tip end of the V-shaped support rod II 56 is fixedly connected with the support ring II 52, the tip of the V-shaped support rod III 58 is fixedly connected with the middle support ring 53, and the cylindrical connecting rod II 57 is arranged between the end part where the V-shaped support rod II 56 and the V-shaped support rod III 58 are connected and the middle support ring 53.
The epoxy resin foam 4 comprises foaming epoxy resin and a curing agent, wherein the foaming epoxy resin comprises epoxy resin, a chemical foaming agent and a nano toughening agent.
The epoxy resin comprises E-51 bisphenol A epoxy resin, nano calcium carbonate, 4-diaminodiphenylmethane, 2-phenylimidazole and acetone, and the E-51 bisphenol A epoxy resin, the nano calcium carbonate, the 4, 4-diaminodiphenylmethane, the 2-phenylimidazole and the acetone are calculated according to the parts by weight:
110-120 parts of E-51 bisphenol A epoxy resin
6-8 parts of nano calcium carbonate
60-68 parts of 4, 4-diaminodiphenylmethane
0.6 to 0.9 portion of 2-phenylimidazole
40-50 parts of acetone.
In addition, the chemical foaming agent comprises sodium dodecyl benzene sulfonate, benzenesulfonyl hydrazide, talcum powder, azodicarbonamide, trifluoropropene, rosin resin, sodium bicarbonate, deodorant, clay powder, calcium carbonate, sodium dodecyl sulfate and water, wherein the sodium dodecyl benzene sulfonate, benzenesulfonyl hydrazide, talcum powder, azodicarbonamide, trifluoropropene, rosin resin, sodium bicarbonate, deodorant, clay powder, calcium carbonate, sodium dodecyl sulfate and water are calculated according to the parts by weight:
10-12 parts of sodium dodecyl benzene sulfonate
Benzenesulfonyl hydrazide 5-15 parts
10-20 parts of talcum powder
10-12 parts of azodicarbonamide
6-10 parts of trifluoropropene
10-20 parts of rosin resin
6-8 parts of sodium bicarbonate
1-3 parts of deodorant
7-9 parts of clay powder
3-5 parts of calcium carbonate
6-8 parts of sodium dodecyl sulfate
60-100 parts of water.
In addition, the curing agent comprises alicyclic amine, fatty amine, accelerator and thixotropic agent, and the alicyclic amine, the fatty amine, the accelerator and the thixotropic agent are mixed in the following weight ratio:
alicyclic amine 13-20
3-15 parts of fatty amine
2 to 3 of an accelerator
6-15 parts of thixotropic agent.
The invention also provides a processing method of the novel high-thermoplasticity PP super-thick plate, which comprises the following steps:
s1, preparation of epoxy resin: mixing raw materials E-51 bisphenol A epoxy resin, nano calcium carbonate, 4-diaminodiphenylmethane, 2-phenylimidazole and acetone in proportion, heating and stirring uniformly;
s2, uniformly mixing the epoxy resin, the chemical foaming agent and the nano toughening agent in proportion to obtain foamed epoxy resin;
s3, preparation of a curing agent: uniformly mixing alicyclic amine, aliphatic amine, an accelerator and a thixotropic agent in proportion to obtain a curing agent;
s4, placing the PP cellular board 3 into a lower die of a die, placing the epoxy resin foam reinforced bracket 5 in the PP cellular board 3 at one time, wherein the epoxy resin foam reinforced bracket 5 on the PP cellular board 3 is placed in a way that the adjacent epoxy resin foam reinforced brackets 5 are placed in a vertical reverse direction;
s5, uniformly mixing the foamed epoxy resin obtained in the step S2 and the curing agent obtained in the step S3 in proportion, sequentially injecting the mixture into the honeycomb of each PP honeycomb plate 3 at a constant speed to enable the mixture of the foamed epoxy resin and the curing agent to be filled into the epoxy resin foam reinforcing support 5, closing the upper die and the lower die, heating the die to 40-60 ℃, and foaming for 10-30 minutes to obtain the PP honeycomb plate 3 filled with epoxy resin foam;
s6, taking out the PP honeycomb plate 3 filled with the epoxy resin foam from the die, and placing the PP honeycomb plate 3 filled with the epoxy resin foam in a trimming die for trimming;
s7, placing the lower skin 2 made of the carbon fiber reinforced epoxy resin composite material on a workbench, and then overlapping the lower epoxy resin adhesive film 7 on the lower skin 2 made of the carbon fiber reinforced epoxy resin composite material;
s8, placing the PP honeycomb plate 3 filled with the finished epoxy resin foam in the step S6 on a lower epoxy resin adhesive film 7 for stacking;
s9, stacking the upper epoxy resin adhesive film 6 on the upper end face of the PP honeycomb plate 3 filled with the epoxy resin foam, and finally stacking the carbon fiber reinforced epoxy resin composite material upper skin 1 on the upper epoxy resin adhesive film 6;
s10, placing the upper carbon fiber reinforced epoxy resin composite material skin 1, the upper epoxy resin adhesive film 6, the PP honeycomb plate 3 filled with epoxy resin foam, the lower epoxy resin adhesive film 7 and the lower carbon fiber reinforced epoxy resin composite material skin 2 which are sequentially stacked from top to bottom in the step S9 into a mold for heating, then preserving heat, and cooling to obtain a product blank;
and S11, carrying out post-treatment on the product blank obtained in the step S10 to obtain the high-plasticity PP super-thick plate.
Example two
The epoxy resin foam 4 comprises foaming epoxy resin and a curing agent, wherein the foaming epoxy resin comprises epoxy resin, a chemical foaming agent and a nano toughening agent.
The epoxy resin comprises E-51 bisphenol A epoxy resin, nano calcium carbonate, 4-diaminodiphenylmethane, 2-phenylimidazole and acetone, and the E-51 bisphenol A epoxy resin, the nano calcium carbonate, the 4, 4-diaminodiphenylmethane, the 2-phenylimidazole and the acetone are calculated according to the parts by weight:
110 parts of E-51 bisphenol A epoxy resin
6 parts of nano calcium carbonate
60 parts of 4, 4-diaminodiphenylmethane
0.6 part of 2-phenylimidazole
And 40 parts of acetone.
In addition, the chemical foaming agent comprises sodium dodecyl benzene sulfonate, benzenesulfonyl hydrazide, talcum powder, azodicarbonamide, trifluoropropene, rosin resin, sodium bicarbonate, deodorant, clay powder, calcium carbonate, sodium dodecyl sulfate and water, wherein the sodium dodecyl benzene sulfonate, benzenesulfonyl hydrazide, talcum powder, azodicarbonamide, trifluoropropene, rosin resin, sodium bicarbonate, deodorant, clay powder, calcium carbonate, sodium dodecyl sulfate and water are calculated according to the parts by weight:
10 portions of sodium dodecyl benzene sulfonate
Benzenesulfonyl hydrazide 5 parts
10 portions of talcum powder
10 portions of azodicarbonamide
Trifluoropropene (6 parts)
Rosin resin 10 parts
Sodium bicarbonate 6 parts
Deodorant 1 part
3 portions of clay powder
3 portions of calcium carbonate
6 parts of sodium dodecyl sulfate
60 parts of water.
In addition, the curing agent comprises alicyclic amine, fatty amine, accelerator and thixotropic agent, and the alicyclic amine, the fatty amine, the accelerator and the thixotropic agent are mixed in the following weight ratio:
alicyclic amine 13
Aliphatic amine 3
Accelerator 2
A thixotropic agent 6.
The invention also provides a processing method of the novel high-thermoplasticity PP super-thick plate, which comprises the following steps:
s1, preparation of epoxy resin: mixing raw materials E-51 bisphenol A epoxy resin, nano calcium carbonate, 4-diaminodiphenylmethane, 2-phenylimidazole and acetone in proportion, heating and stirring uniformly;
s2, uniformly mixing the epoxy resin, the chemical foaming agent and the nano toughening agent in proportion to obtain foamed epoxy resin;
s3, preparation of a curing agent: uniformly mixing alicyclic amine, aliphatic amine, an accelerator and a thixotropic agent in proportion to obtain a curing agent;
s4, placing the PP cellular board 3 into a lower die of a die, placing the epoxy resin foam reinforced bracket 5 in the PP cellular board 3 at one time, wherein the epoxy resin foam reinforced bracket 5 on the PP cellular board 3 is placed in a way that the adjacent epoxy resin foam reinforced brackets 5 are placed in a vertical reverse direction;
s5, uniformly mixing the foamed epoxy resin obtained in the step S2 and the curing agent obtained in the step S3 in proportion, sequentially injecting the mixture into the honeycomb of each PP honeycomb plate 3 at a constant speed to enable the mixture of the foamed epoxy resin and the curing agent to be filled into the epoxy resin foam reinforcing support 5, closing the upper die and the lower die, heating the die to 40-60 ℃, and foaming for 10-30 minutes to obtain the PP honeycomb plate 3 filled with epoxy resin foam;
s6, taking out the PP honeycomb plate 3 filled with the epoxy resin foam from the die, and placing the PP honeycomb plate 3 filled with the epoxy resin foam in a trimming die for trimming;
s7, placing the lower skin 2 made of the carbon fiber reinforced epoxy resin composite material on a workbench, and then overlapping the lower epoxy resin adhesive film 7 on the lower skin 2 made of the carbon fiber reinforced epoxy resin composite material;
s8, placing the PP honeycomb plate 3 filled with the finished epoxy resin foam in the step S6 on a lower epoxy resin adhesive film 7 for stacking;
s9, stacking the upper epoxy resin adhesive film 6 on the upper end face of the PP honeycomb plate 3 filled with the epoxy resin foam, and finally stacking the carbon fiber reinforced epoxy resin composite material upper skin 1 on the upper epoxy resin adhesive film 6;
s10, placing the upper carbon fiber reinforced epoxy resin composite material skin 1, the upper epoxy resin adhesive film 6, the PP honeycomb plate 3 filled with epoxy resin foam, the lower epoxy resin adhesive film 7 and the lower carbon fiber reinforced epoxy resin composite material skin 2 which are sequentially stacked from top to bottom in the step S9 into a mold for heating, then preserving heat, and cooling to obtain a product blank;
and S11, carrying out post-treatment on the product blank obtained in the step S10 to obtain the high-plasticity PP super-thick plate.
EXAMPLE III
The epoxy resin foam 4 comprises foaming epoxy resin and a curing agent, wherein the foaming epoxy resin comprises epoxy resin, a chemical foaming agent and a nano toughening agent.
The epoxy resin comprises E-51 bisphenol A epoxy resin, nano calcium carbonate, 4-diaminodiphenylmethane, 2-phenylimidazole and acetone, and the E-51 bisphenol A epoxy resin, the nano calcium carbonate, the 4, 4-diaminodiphenylmethane, the 2-phenylimidazole and the acetone are calculated according to the parts by weight:
120 parts of E-51 bisphenol A type epoxy resin
8 parts of nano calcium carbonate
68 parts of 4, 4-diaminodiphenylmethane
0.9 part of 2-phenylimidazole
And 50 parts of acetone.
In addition, the chemical foaming agent comprises sodium dodecyl benzene sulfonate, benzenesulfonyl hydrazide, talcum powder, azodicarbonamide, trifluoropropene, rosin resin, sodium bicarbonate, deodorant, clay powder, calcium carbonate, sodium dodecyl sulfate and water, wherein the sodium dodecyl benzene sulfonate, benzenesulfonyl hydrazide, talcum powder, azodicarbonamide, trifluoropropene, rosin resin, sodium bicarbonate, deodorant, clay powder, calcium carbonate, sodium dodecyl sulfate and water are calculated according to the parts by weight:
12 parts of sodium dodecyl benzene sulfonate
Benzenesulfonyl hydrazide 15 parts
20 portions of talcum powder
Azodicarbonamide 12 parts
10 parts of trifluoropropene
Rosin resin 20 parts
Sodium bicarbonate 8 parts
Deodorant 3 parts
9 portions of clay powder
5 portions of calcium carbonate
Sodium dodecyl sulfate 8 parts
100 parts of water.
In addition, the curing agent comprises alicyclic amine, fatty amine, accelerator and thixotropic agent, and the alicyclic amine, the fatty amine, the accelerator and the thixotropic agent are mixed in the following weight ratio:
alicyclic amines 20
Fatty amines 15
Accelerator 3
A thixotropic agent 15.
The invention also provides a processing method of the novel high-thermoplasticity PP super-thick plate, which comprises the following steps:
s1, preparation of epoxy resin: mixing raw materials E-51 bisphenol A epoxy resin, nano calcium carbonate, 4-diaminodiphenylmethane, 2-phenylimidazole and acetone in proportion, heating and stirring uniformly;
s2, uniformly mixing the epoxy resin, the chemical foaming agent and the nano toughening agent in proportion to obtain foamed epoxy resin;
s3, preparation of a curing agent: uniformly mixing alicyclic amine, aliphatic amine, an accelerator and a thixotropic agent in proportion to obtain a curing agent;
s4, placing the PP cellular board 3 into a lower die of a die, placing the epoxy resin foam reinforced bracket 5 in the PP cellular board 3 at one time, wherein the epoxy resin foam reinforced bracket 5 on the PP cellular board 3 is placed in a way that the adjacent epoxy resin foam reinforced brackets 5 are placed in a vertical reverse direction;
s5, uniformly mixing the foamed epoxy resin obtained in the step S2 and the curing agent obtained in the step S3 in proportion, sequentially injecting the mixture into the honeycomb of each PP honeycomb plate 3 at a constant speed to enable the mixture of the foamed epoxy resin and the curing agent to be filled into the epoxy resin foam reinforcing support 5, closing the upper die and the lower die, heating the die to 40-60 ℃, and foaming for 10-30 minutes to obtain the PP honeycomb plate 3 filled with epoxy resin foam;
s6, taking out the PP honeycomb plate 3 filled with the epoxy resin foam from the die, and placing the PP honeycomb plate 3 filled with the epoxy resin foam in a trimming die for trimming;
s7, placing the lower skin 2 made of the carbon fiber reinforced epoxy resin composite material on a workbench, and then overlapping the lower epoxy resin adhesive film 7 on the lower skin 2 made of the carbon fiber reinforced epoxy resin composite material;
s8, placing the PP honeycomb plate 3 filled with the finished epoxy resin foam in the step S6 on a lower epoxy resin adhesive film 7 for stacking;
s9, stacking the upper epoxy resin adhesive film 6 on the upper end face of the PP honeycomb plate 3 filled with the epoxy resin foam, and finally stacking the carbon fiber reinforced epoxy resin composite material upper skin 1 on the upper epoxy resin adhesive film 6;
s10, placing the upper carbon fiber reinforced epoxy resin composite material skin 1, the upper epoxy resin adhesive film 6, the PP honeycomb plate 3 filled with epoxy resin foam, the lower epoxy resin adhesive film 7 and the lower carbon fiber reinforced epoxy resin composite material skin 2 which are sequentially stacked from top to bottom in the step S9 into a mold for heating, then preserving heat, and cooling to obtain a product blank;
and S11, carrying out post-treatment on the product blank obtained in the step S10 to obtain the high-plasticity PP super-thick plate.
Example four
The epoxy resin foam 4 comprises foaming epoxy resin and a curing agent, wherein the foaming epoxy resin comprises epoxy resin, a chemical foaming agent and a nano toughening agent.
The epoxy resin comprises E-51 bisphenol A epoxy resin, nano calcium carbonate, 4-diaminodiphenylmethane, 2-phenylimidazole and acetone, and the E-51 bisphenol A epoxy resin, the nano calcium carbonate, the 4, 4-diaminodiphenylmethane, the 2-phenylimidazole and the acetone are calculated according to the parts by weight:
115 parts of E-51 bisphenol A epoxy resin
7 parts of nano calcium carbonate
65 parts of 4, 4-diaminodiphenylmethane
0.8 part of 2-phenylimidazole
And 45 parts of acetone.
In addition, the chemical foaming agent comprises sodium dodecyl benzene sulfonate, benzenesulfonyl hydrazide, talcum powder, azodicarbonamide, trifluoropropene, rosin resin, sodium bicarbonate, deodorant, clay powder, calcium carbonate, sodium dodecyl sulfate and water, wherein the sodium dodecyl benzene sulfonate, benzenesulfonyl hydrazide, talcum powder, azodicarbonamide, trifluoropropene, rosin resin, sodium bicarbonate, deodorant, clay powder, calcium carbonate, sodium dodecyl sulfate and water are calculated according to the parts by weight:
11 parts of sodium dodecyl benzene sulfonate
Benzenesulfonyl hydrazide 8 parts
15 portions of talcum powder
11 parts of azodicarbonamide
Trifluoropropene (8 parts)
Rosin resin 15 parts
Sodium bicarbonate 7 parts
Deodorant 2 parts
8 portions of clay powder
Calcium carbonate 4 parts
Sodium dodecyl sulfate 7 parts
80 parts of water.
In addition, the curing agent comprises alicyclic amine, fatty amine, accelerator and thixotropic agent, and the alicyclic amine, the fatty amine, the accelerator and the thixotropic agent are mixed in the following weight ratio:
alicyclic amines 15
Aliphatic amine 10
Accelerator 2.5
A thixotropic agent 10.
The invention also provides a processing method of the novel high-thermoplasticity PP super-thick plate, which comprises the following steps:
s1, preparation of epoxy resin: mixing raw materials E-51 bisphenol A epoxy resin, nano calcium carbonate, 4-diaminodiphenylmethane, 2-phenylimidazole and acetone in proportion, heating and stirring uniformly;
s2, uniformly mixing the epoxy resin, the chemical foaming agent and the nano toughening agent in proportion to obtain foamed epoxy resin;
s3, preparation of a curing agent: uniformly mixing alicyclic amine, aliphatic amine, an accelerator and a thixotropic agent in proportion to obtain a curing agent;
s4, placing the PP cellular board 3 into a lower die of a die, placing the epoxy resin foam reinforced bracket 5 in the PP cellular board 3 at one time, wherein the epoxy resin foam reinforced bracket 5 on the PP cellular board 3 is placed in a way that the adjacent epoxy resin foam reinforced brackets 5 are placed in a vertical reverse direction;
s5, uniformly mixing the foamed epoxy resin obtained in the step S2 and the curing agent obtained in the step S3 in proportion, sequentially injecting the mixture into the honeycomb of each PP honeycomb plate 3 at a constant speed to enable the mixture of the foamed epoxy resin and the curing agent to be filled into the epoxy resin foam reinforcing support 5, closing the upper die and the lower die, heating the die to 40-60 ℃, and foaming for 10-30 minutes to obtain the PP honeycomb plate 3 filled with epoxy resin foam;
s6, taking out the PP honeycomb plate 3 filled with the epoxy resin foam from the die, and placing the PP honeycomb plate 3 filled with the epoxy resin foam in a trimming die for trimming;
s7, placing the lower skin 2 made of the carbon fiber reinforced epoxy resin composite material on a workbench, and then overlapping the lower epoxy resin adhesive film 7 on the lower skin 2 made of the carbon fiber reinforced epoxy resin composite material;
s8, placing the PP honeycomb plate 3 filled with the finished epoxy resin foam in the step S6 on a lower epoxy resin adhesive film 7 for stacking;
s9, stacking the upper epoxy resin adhesive film 6 on the upper end face of the PP honeycomb plate 3 filled with the epoxy resin foam, and finally stacking the carbon fiber reinforced epoxy resin composite material upper skin 1 on the upper epoxy resin adhesive film 6;
s10, placing the upper carbon fiber reinforced epoxy resin composite material skin 1, the upper epoxy resin adhesive film 6, the PP honeycomb plate 3 filled with epoxy resin foam, the lower epoxy resin adhesive film 7 and the lower carbon fiber reinforced epoxy resin composite material skin 2 which are sequentially stacked from top to bottom in the step S9 into a mold for heating, then preserving heat, and cooling to obtain a product blank;
and S11, carrying out post-treatment on the product blank obtained in the step S10 to obtain the high-plasticity PP super-thick plate.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that a person of ordinary skill in the art could make a series of modifications without departing from the principle of the present invention, and these modifications should also be considered as the protection scope of the present invention.

Claims (10)

1. The utility model provides a novel high thermoplasticity PP super thick plate which characterized in that: the composite material comprises an upper carbon fiber reinforced epoxy resin composite material skin (1), a lower carbon fiber reinforced epoxy resin composite material skin (2), a PP cellular board (3), a group of epoxy resin foams (4), a group of epoxy resin foam reinforced supports (5), an upper epoxy resin adhesive film (6) and a lower epoxy resin adhesive film (7), wherein the cross sections of the upper carbon fiber reinforced epoxy resin composite material skin (1) and the lower carbon fiber reinforced epoxy resin composite material skin (2) are the same, the upper carbon fiber reinforced epoxy resin composite material skin (1) and the lower carbon fiber reinforced epoxy resin composite material skin (2) are arranged oppositely, the PP cellular board (3) is arranged between the upper carbon fiber reinforced epoxy resin composite material skin (1) and the lower carbon fiber reinforced epoxy resin composite material skin (2), the group of epoxy resin foams (4) and the group of epoxy resin foam reinforced supports (5) are arranged correspondingly one to one, and epoxy resin foam (4) is filled in the epoxy resin foam reinforced support (5), the epoxy resin foam reinforced supports (5) are respectively arranged in the PP cellular board (3), one ends of the carbon fiber reinforced epoxy resin composite material upper skin (1) and the PP cellular board (3) are bonded through an upper epoxy resin adhesive film (6), and the other ends of the carbon fiber reinforced epoxy resin composite material lower skin (2) and the PP cellular board (3) are bonded through a lower epoxy resin adhesive film (7).
2. The new high thermoplastic PP ultra thick sheet material according to claim 1, characterized in that: PP honeycomb panel (3) are including a set of parallel arrangement's horizontal PP base plate (31) and a set of parallel arrangement's vertical PP base plate (32), a set of parallel arrangement's horizontal PP base plate (31) and a set of parallel arrangement's vertical PP base plate (32) are violently indulged the cross arrangement and are formed field word lattice structure, a set of parallel arrangement's horizontal PP base plate (31) and a set of parallel arrangement's vertical PP base plate (32) form a set of PP honeycomb (33), epoxy foam reinforcing support (5) set up in PP honeycomb (33).
3. The new high thermoplastic PP ultra thick sheet material according to claim 1, characterized in that: the epoxy resin foam reinforced support (5) is diamond-shaped, the epoxy resin foam reinforced support (5) comprises a first support ring (51), a second support ring (52) and a middle support ring (53), the first support ring (51), the second support ring (52) and the middle support ring (53) are coaxially arranged, the middle support ring (53) is positioned between the first support ring (51) and the second support ring (52), and the sectional areas of the first support ring (51), the second support ring (52) and the middle support ring (53) are arranged in sequence from small to large.
4. A new high thermoplastic PP super thick sheet material according to claim 3, characterized in that: a group of V-shaped supporting rods I (54) and a group of cylindrical connecting rods I (55) are arranged between the first supporting ring (51) and the middle supporting ring (53), the group of V-shaped supporting rods (54) and the group of cylindrical connecting rods (55) are arranged in an annular array mode by taking the center of the supporting ring I (51) as the center of a circle, and a group of V-shaped supporting rods (54) and a group of cylindrical connecting rods (55) are arranged correspondingly one by one, the tip end of the V-shaped support rod I (54) is fixedly connected with the support ring I (51), and the two ends of the V-shaped support rod I (54) are fixedly connected with the middle support ring (53), the first cylindrical connecting rod (55) is positioned in the middle of the first V-shaped supporting rod (54), one end of the first cylindrical connecting rod (55) is fixedly connected with the tip end of the first V-shaped supporting rod (54), and the other end of the first cylindrical connecting rod (55) is fixedly connected with the middle supporting ring (53).
5. The new high thermoplastic PP ultra thick sheet material according to claim 4, characterized in that: a group of V-shaped support rods II (56), a group of cylindrical connecting rods II (57) and a group of V-shaped support rods III (58) are arranged between the support ring II (52) and the middle support ring (53), the group of V-shaped support rods II (56), the group of cylindrical connecting rods II (57) and the group of V-shaped support rods III (58) are all arranged in an annular array mode by taking the center of the support ring II (52) as the center of a circle, the group of V-shaped support rods II (56) and the group of V-shaped support rods III (58) are arranged in a one-to-one correspondence mode, two end parts of the V-shaped support rods II (56) are fixedly connected with two end parts of the V-shaped support rods III (58), the sections of the V-shaped support rods II (56) and the V-shaped support rods III (58) are rhombic, the tips of the V-shaped support rods II (56) are fixedly connected with the support ring II (52), and, the second cylindrical connecting rod (57) is arranged between the end part where the second V-shaped supporting rod (56) and the third V-shaped supporting rod (58) are connected and the middle supporting ring (53).
6. The new high thermoplastic PP ultra thick sheet material according to claim 1, characterized in that: the epoxy resin foam (4) comprises foaming epoxy resin and a curing agent, wherein the foaming epoxy resin comprises epoxy resin, a chemical foaming agent and a nano toughening agent.
7. The new high thermoplastic PP ultra thick sheet material according to claim 6, characterized in that: the epoxy resin comprises E-51 bisphenol A epoxy resin, nano calcium carbonate, 4-diaminodiphenylmethane, 2-phenylimidazole and acetone, wherein the E-51 bisphenol A epoxy resin, the nano calcium carbonate, the 4, 4-diaminodiphenylmethane, the 2-phenylimidazole and the acetone are calculated according to the parts by weight:
110-120 parts of E-51 bisphenol A epoxy resin
6-8 parts of nano calcium carbonate
60-68 parts of 4, 4-diaminodiphenylmethane
0.6 to 0.9 portion of 2-phenylimidazole
40-50 parts of acetone.
8. The new high thermoplastic PP ultra thick sheet material according to claim 6, characterized in that: the chemical foaming agent comprises sodium dodecyl benzene sulfonate, benzenesulfonyl hydrazide, talcum powder, azodicarbonamide, trifluoropropene, rosin resin, sodium bicarbonate, a deodorant, clay powder, calcium carbonate, sodium dodecyl sulfate and water, wherein the sodium dodecyl benzene sulfonate, benzenesulfonyl hydrazide, talcum powder, azodicarbonamide, trifluoropropene, rosin resin, sodium bicarbonate, the deodorant, the clay powder, calcium carbonate, sodium dodecyl sulfate and the water are calculated according to the parts by weight:
10-12 parts of sodium dodecyl benzene sulfonate
Benzenesulfonyl hydrazide 5-15 parts
10-20 parts of talcum powder
10-12 parts of azodicarbonamide
6-10 parts of trifluoropropene
10-20 parts of rosin resin
6-8 parts of sodium bicarbonate
1-3 parts of deodorant
7-9 parts of clay powder
3-5 parts of calcium carbonate
6-8 parts of sodium dodecyl sulfate
60-100 parts of water.
9. The new high thermoplastic PP ultra thick sheet material according to claim 6, characterized in that: the curing agent comprises alicyclic amine, fatty amine, an accelerator and a thixotropic agent, and the alicyclic amine, the fatty amine, the accelerator and the thixotropic agent are mixed in the following weight ratio:
alicyclic amine 13-20
3-15 parts of fatty amine
2 to 3 of an accelerator
6-15 parts of thixotropic agent.
10. A processing method of a novel high-thermoplasticity PP super-thick plate is characterized by comprising the following steps: the method comprises the following steps:
s1, preparation of epoxy resin: mixing raw materials E-51 bisphenol A epoxy resin, nano calcium carbonate, 4-diaminodiphenylmethane, 2-phenylimidazole and acetone in proportion, heating and stirring uniformly;
s2, uniformly mixing the epoxy resin, the chemical foaming agent and the nano toughening agent in proportion to obtain foamed epoxy resin;
s3, preparation of a curing agent: uniformly mixing alicyclic amine, aliphatic amine, an accelerator and a thixotropic agent in proportion to obtain a curing agent;
s4, placing the PP cellular board (3) into a lower die of a die, placing the epoxy resin foam reinforced bracket (5) in the PP cellular board (3) at one time, wherein the epoxy resin foam reinforced bracket (5) on the PP cellular board (3) is placed in a way that the adjacent epoxy resin foam reinforced brackets (5) are placed in a vertical reverse direction;
s5, uniformly mixing the foamed epoxy resin obtained in the step S2 and the curing agent obtained in the step S3 in proportion, sequentially injecting the mixture into the honeycomb of each PP honeycomb plate (3) at a constant speed to enable the mixture of the foamed epoxy resin and the curing agent to be filled into the epoxy resin foam reinforcing support (5), closing the upper die and the lower die, heating the die to 40-60 ℃, and foaming for 10-30 minutes to obtain the PP honeycomb plate (3) filled with epoxy resin foam;
s6, taking out the PP honeycomb plate (3) filled with the epoxy resin foam from the die, and placing the PP honeycomb plate (3) filled with the epoxy resin foam in a trimming die for trimming;
s7, placing the lower carbon fiber reinforced epoxy resin composite material skin (2) on a workbench, and then stacking a lower epoxy resin adhesive film (7) on the lower carbon fiber reinforced epoxy resin composite material skin (2);
s8, placing the PP honeycomb plate (3) filled with the finished epoxy resin foam in the step S6 on a lower epoxy resin adhesive film (7) for stacking;
s9, stacking an upper epoxy resin adhesive film (6) on the upper end face of the PP honeycomb plate (3) filled with epoxy resin foam, and finally stacking an upper carbon fiber reinforced epoxy resin composite material skin (1) on the upper epoxy resin adhesive film (6);
s10, putting the upper carbon fiber reinforced epoxy resin composite material skin (1), the upper epoxy resin adhesive film (6), the PP honeycomb plate (3) filled with epoxy resin foam, the lower epoxy resin adhesive film (7) and the lower carbon fiber reinforced epoxy resin composite material skin (2) which are sequentially stacked from top to bottom in the step S9 into a mold for heating, then preserving heat, and cooling to obtain a product blank;
and S11, carrying out post-treatment on the product blank obtained in the step S10 to obtain the high-plasticity PP super-thick plate.
CN202011298631.8A 2020-11-19 2020-11-19 Novel high-thermoplasticity PP (polypropylene) super-thick plate and processing method thereof Withdrawn CN112519371A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113878866A (en) * 2021-09-08 2022-01-04 煤炭科学研究总院 Three-dimensional film forming method based on electric field regulation and control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113878866A (en) * 2021-09-08 2022-01-04 煤炭科学研究总院 Three-dimensional film forming method based on electric field regulation and control
CN113878866B (en) * 2021-09-08 2022-10-14 煤炭科学研究总院有限公司 Three-dimensional film forming method based on electric field regulation and control

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Application publication date: 20210319