CN107955248B - Internal reinforced composite board prepared from traditional Chinese medicine dregs and preparation method thereof - Google Patents

Internal reinforced composite board prepared from traditional Chinese medicine dregs and preparation method thereof Download PDF

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CN107955248B
CN107955248B CN201711188297.9A CN201711188297A CN107955248B CN 107955248 B CN107955248 B CN 107955248B CN 201711188297 A CN201711188297 A CN 201711188297A CN 107955248 B CN107955248 B CN 107955248B
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chinese medicine
traditional chinese
medicine dregs
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CN107955248A (en
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李卫红
雷文
李虹昆
赵雨晗
汪瑾
唐祖坤
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Nanjing Forestry University
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Nanjing Forestry University
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • 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
    • B32B27/32—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
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/06—Unsaturated polyesters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/06—Biodegradable
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

Abstract

The invention relates to an internal reinforced composite board prepared from traditional Chinese medicine dregs and a preparation method thereof. The thermoplastic composite material layer is prepared by mixing, extruding and rolling polyolefin plastic particles, traditional Chinese medicine residues, maleic anhydride, stearate, an antioxidant, basic magnesium sulfate whiskers and microcrystalline cellulose; the porous thermosetting composite material layer is prepared by manually pasting unsaturated polyester resin, cobalt naphthanate, methyl ethyl ketone peroxide, traditional Chinese medicine residues and linen, molding, drilling, roughening the surface and etching with alkali. The invention has the advantages of convenient production, low cost, environmental protection, high modulus and creep resistance, and can utilize the waste of the Chinese medicine residue. Can make into products such as flooring, railing, wallboard, photo holder frame, skirting line, hang buckle, a great deal of occasions such as wide application in building and hall institute, house official working, municipal garden.

Description

Internal reinforced composite board prepared from traditional Chinese medicine dregs and preparation method thereof
Technical Field
The invention discloses a composite material plate, and particularly relates to an internal reinforced composite plate manufactured by utilizing traditional Chinese medicine dregs and a production method thereof.
Background
In many occasions such as buildings, houses, offices, municipal gardens and the like, products such as various flooring boards, railings, wallboards, photo frames, picture frames, skirting lines, hanging buckle plates and the like are commonly used, and traditionally, the products are generally made of wood boards, plastic boards, marble boards and the like, but the boards have certain limitations in the production or use process, for example, the wood boards are easy to crack and damage by worms, the cost is high, and trees need to be cut down in the processing process, so that the water and soil conservation and the environmental protection are not facilitated; the plastic plates have poor degradability, the waste materials generated after the waste generate pollution to soil, water and the like, and most of the plastic plates are easy to deform, age and fade; the marble slab is heavy, inconvenient to transport and install, poor in touch feeling, poor in repairability and the like. In recent years, the research and application of the wood-plastic composite material are highly concerned, and the wood-plastic composite material has excellent corrosion resistance, water resistance, crack resistance and stain resistance, does not need secondary processing, is convenient to install, does not contain toxic chemical components, is low-carbon and environment-friendly, does not need painting, polishing and maintenance, is easy to clean, and is heat-insulating and sound-insulating, so that the wood-plastic composite material can be widely applied to various occasions such as indoor and outdoor decoration, garden engineering construction, workshop corrosion protection engineering, ocean corrosion protection engineering, environmental sanitation facilities and the like. However, the plant fiber used for producing the wood-plastic composite material at present basically adopts wood powder or rice bran powder, the wood powder is undoubtedly used to consume a large amount of wood, the wood resource of China is in short supply, and the gap of the wood supply and demand reaches 6000 ten thousand meters every year3(ii) a The rice bran powder is relatively short in source, is an important feed for livestock, and is used in large amountThe rice bran powder is equivalent to the consumption of grains from the mouths of the livestock. Therefore, the method for preparing the wood-plastic composite material by using the fiber powder of other resources is the front edge of the research of various countries in the world and is also a necessary way for the development of the wood-plastic industry in China.
China is a big country for producing and using traditional Chinese medicines, the annual growth rate of the traditional Chinese medicine industry is estimated to be between 20 and 25 percent in most provinces and cities in China, more than 30 percent in some provinces and cities, and the traditional Chinese medicine industry develops rapidly. In the process of preparing the traditional Chinese medicine, a large amount of solid traditional Chinese medicine dregs are generated, and traditionally, the traditional Chinese medicine dregs are generally discarded as waste or burnt as fuel, so that the resource waste is serious.
Therefore, the waste traditional Chinese medicine dregs are used for replacing the traditional plant fibers to produce the wood-plastic composite material, so that the market requirement can be met, and the waste can be changed into valuable.
Disclosure of Invention
The invention aims to recycle abundant Chinese medicine dregs in China, and provides an internal reinforced composite board manufactured by using the Chinese medicine dregs and a production method thereof.
An internal reinforced composite board made of traditional Chinese medicine dregs is realized by adopting the following scheme:
an internal reinforced composite board made of Chinese medicine dregs is composed of three thermoplastic composite layers and two porous thermosetting composite layers, and one porous thermosetting composite layer is between each two thermoplastic composite layers.
The three thermoplastic composite material layers are completely the same in composition and structure and are prepared by mixing, extruding and rolling polyolefin plastic particles, traditional Chinese medicine dregs, maleic anhydride, stearate, an antioxidant, basic magnesium sulfate whisker and microcrystalline cellulose; the two porous thermosetting composite material layers have the same composition and structure and are prepared from unsaturated polyester resin, cobalt naphthanate, methyl ethyl ketone peroxide, traditional Chinese medicine residues and linen through hand pasting, die pressing, drilling, surface napping and alkali etching.
The polyolefin plastic particles are one of polyethylene or polypropylene.
The grain diameter of the traditional Chinese medicine decoction dregs is 40-120 meshes.
The stearate is one of calcium stearate or zinc stearate.
The antioxidant is one of 2, 6-di-tert-butyl-p-methylphenol or 4, 4' -methylene bis (2, 6-di-tert-butylphenol).
The grain diameter of the microcrystalline cellulose is 20-230 meshes.
The unsaturated polyester resin is one of ortho-benzene type or meta-benzene type unsaturated polyester resin.
The linen is one of ramie cloth, linen, hemp cloth or jute cloth.
A preparation method of an internal reinforced composite board prepared from traditional Chinese medicine dregs comprises the following steps:
(1) evenly mechanically mixing polyolefin plastic particles, maleic anhydride, stearate, an antioxidant, basic magnesium sulfate whiskers and microcrystalline cellulose according to the mass ratio of 100: 5-15: 1-2: 0.8-1.2: 5-15, and then extruding and granulating to obtain composite plastic particles, wherein the extrusion temperature is 170-190 ℃; mechanically mixing the composite plastic particles and the traditional Chinese medicine dregs according to the mass ratio of 100: 30-50, and rolling the mixture into a thermoplastic composite material layer by using a double-roller rubber mixing mill, wherein the rolling temperature is 165-;
(2) respectively weighing unsaturated polyester resin, cobalt naphthoate, methyl ethyl ketone peroxide, traditional Chinese medicine dregs and linen according to the mass ratio of 100: 0.5-1.5: 10-20: 10-30, mechanically and uniformly stirring the unsaturated polyester resin and the cobalt naphthoate, adding the methyl ethyl ketone peroxide and uniformly stirring, then adding the traditional Chinese medicine dregs and uniformly stirring again to obtain traditional Chinese medicine dreg filling resin paste; finally, adopting a layering mould pressing process, taking linen as a reinforcing material, filling resin paste into dregs of traditional Chinese medicine as a matrix, manufacturing a linen reinforced resin-based composite material plate, carrying out post-curing treatment on the linen reinforced resin-based composite material plate at the temperature of 75-85 ℃ for 2-4h after curing at the room temperature of 30-90Pa, cooling to the room temperature to obtain a thermosetting composite material layer, drilling upper and lower through holes on the thermosetting composite material layer by utilizing cobalt hole equipment to obtain a perforated thermosetting composite material layer, then carrying out galling on the surface of the perforated thermosetting composite material layer to obtain a galling perforated thermosetting composite material layer, putting the galling perforated thermosetting composite material layer into a NaOH solution with the mass concentration of 2-10% for soaking treatment for 24-48h, taking out, washing to be neutral by using tap water, airing to obtain a porous thermosetting composite material layer, the thickness of the porous thermosetting composite material layer is 0.6-3 cm;
(3) cutting the thermoplastic composite material layer and the porous thermosetting composite material layer according to the size of a die cavity for compression molding to enable the length and the width of the thermoplastic composite material layer and the porous thermosetting composite material layer to be respectively consistent with the length and the width of the die cavity, wherein the porous thermosetting composite material layer is provided with a boundary upper through hole, a boundary lower through hole and a central upper through hole, and the central upper through hole and the central lower through hole;
(4) placing 1 layer of thermoplastic composite material layer at the bottom of a mold cavity of a compression molding mold, then laying 1 layer of porous thermosetting composite material layer on the mold cavity, then laying 1 layer of thermoplastic composite material layer and 1 layer of porous thermosetting composite material layer on the mold cavity in sequence, and finally laying 1 layer of thermoplastic composite material layer, wherein the thicknesses of the three layers of thermoplastic composite material layers are the same, the thicknesses of the two layers of porous thermosetting composite material layers are the same, heating the mold to raise the temperature to 30-50 ℃, exhausting for 5-15min, closing the mold, preheating for 10-20min within the range of 170-190 ℃, and then performing compression molding under the pressure of 10-50MPa to prepare the internal reinforced composite plate prepared from traditional Chinese medicine dregs.
The internal reinforced composite board prepared from the traditional Chinese medicine dregs is convenient to produce and manufacture, can be produced and processed by adopting the traditional composite material production process, and has high degree of mechanization and low production cost in the production process. Compared with the common plastic plate, the internal reinforced composite plate manufactured by using the traditional Chinese medicine dregs has the advantages that the used plastic amount is reduced, the internal reinforced composite plate is more environment-friendly, higher in modulus and more resistant to creep deformation, and meanwhile, the traditional Chinese medicine dregs can be subjected to waste utilization, so that the environmental pollution can be reduced, and the product raw material cost can be reduced; compared with wood-plastic composite material plates, the internal reinforced composite material plate manufactured by utilizing the traditional Chinese medicine dregs has higher strength, the traditional Chinese medicine dregs are used for replacing wood powder or rice bran powder, the forest cutting amount can be reduced, the water and soil conservation and the environmental protection are facilitated, grains cannot be deprived from livestock mouths, and the cultivation of livestock is facilitated. Compared with glass fiber reinforced plastic plates, the internally reinforced composite plate manufactured by utilizing traditional Chinese medicine dregs has the advantages that the amount of thermosetting resin is less, fibrilia cloth is used for replacing glass fiber cloth, the degradability is stronger, the environment is more friendly, and the combination of different laminated plates is firmer and the comprehensive performance is more excellent by adopting the processes of porosity, surface napping, alkaline etching and the like. In addition, the composite material produced by utilizing the traditional Chinese medicine dregs can also improve the use value of the traditional Chinese medicine dregs, change waste into valuable and be beneficial to promoting the benign development of the traditional Chinese medicine industry. The inner reinforced composite board prepared from the traditional Chinese medicine dregs can be widely applied to various occasions such as buildings, halls, offices, municipal gardens and the like, and can be made into products such as flooring boards, railings, wall boards, photo frames, picture frames, skirting lines, buckle plates and the like.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic structural view of an internally reinforced composite board made of traditional Chinese medicine dregs.
Fig. 2 is a schematic structural view of the porous thermoset composite layer of fig. 1.
Fig. 3 is a schematic view of the cross-sectional structure a-a in fig. 2.
1-thermoplastic composite material layer, 2-porous thermosetting composite material layer, 3-polyolefin plastic particles, 4-traditional Chinese medicine dregs, 5-maleic anhydride, 6-stearate, 7-antioxidant, 8-basic magnesium sulfate whisker, 9-microcrystalline cellulose, 10-unsaturated polyester resin, 11-cobalt naphthanate, 12-methyl ethyl ketone peroxide, 13-linen, 14-boundary upper and lower through holes and 15-central upper and lower through holes.
Detailed Description
Referring to figures 1, 2 and 3, an internal reinforced composite board made of traditional Chinese medicine dregs comprises three thermoplastic composite material layers 1 and two porous thermosetting composite material layers 2, wherein one porous thermosetting composite material layer 2 is arranged between every two thermoplastic composite material layers 1.
The three thermoplastic composite material layers 1 are completely the same in composition and structure and are prepared by mixing, extruding and rolling polyolefin plastic particles 3, traditional Chinese medicine dregs 4, maleic anhydride 5, stearate 6, an antioxidant 7, basic magnesium sulfate whisker 8 and microcrystalline cellulose 9; the two porous thermosetting composite material layers 2 are completely the same in composition and structure and are all formed by manually pasting, mould pressing, drilling, surface napping and alkali etching unsaturated polyester resin 10, cobalt naphthanate 11, methyl ethyl ketone peroxide 12, traditional Chinese medicine dregs 4 and linen 13.
The polyolefin plastic particles are one of polyethylene or polypropylene.
The grain diameter of the traditional Chinese medicine decoction dregs is 40-120 meshes.
The stearate is one of calcium stearate or zinc stearate.
The antioxidant is one of 2, 6-di-tert-butyl-p-methylphenol or 4, 4' -methylene bis (2, 6-di-tert-butylphenol).
The grain diameter of the microcrystalline cellulose is 20-230 meshes.
The unsaturated polyester resin is one of ortho-benzene type or meta-benzene type unsaturated polyester resin.
The linen is one of ramie cloth, linen, hemp cloth or jute cloth.
Example 1: a preparation method of an internal reinforced composite board prepared from traditional Chinese medicine dregs comprises the following steps:
(1) uniformly mechanically mixing polyethylene, maleic anhydride, calcium stearate, 2, 6-di-tert-butyl-p-methylphenol, basic magnesium sulfate whisker and microcrystalline cellulose (125 meshes) according to the mass ratio of 100: 10: 1.5: 1: 10, and then extruding and granulating to obtain composite plastic particles, wherein the extrusion temperature is 180 ℃; mechanically mixing the composite plastic particles and the traditional Chinese medicine dregs (80 meshes) according to the mass ratio of 100: 40, and rolling the mixture into a thermoplastic composite layer by using a double-roller rubber mixing mill, wherein the rolling temperature is 175 ℃, and the thickness of the thermoplastic composite layer is 0.8 cm;
(2) weighing o-benzene type unsaturated polyester resin, cobalt naphthoate, methyl ethyl ketone peroxide, traditional Chinese medicine dregs (80 meshes) and ramie cloth according to the mass ratio of 100: 1: 15: 20, mechanically and uniformly stirring the unsaturated polyester resin and the cobalt naphthoate, adding the methyl ethyl ketone peroxide, uniformly stirring, adding the traditional Chinese medicine dregs, uniformly stirring again, and obtaining traditional Chinese medicine dregs filled resin paste; finally, adopting a layering mould pressing process, taking linen as a reinforcing material, filling resin paste into traditional Chinese medicine dregs as a matrix, manufacturing a linen reinforced resin matrix composite plate, carrying out mould pressing pressure of 60Pa, curing the linen reinforced resin matrix composite plate for 18 hours at room temperature, carrying out postcuring treatment on the linen reinforced resin matrix composite plate for 3 hours, cooling the linen reinforced resin matrix composite plate to room temperature to obtain a thermosetting composite layer, drilling upper and lower through holes on the thermosetting composite layer by using drilling equipment to obtain a perforated thermosetting composite layer, then carrying out galling on the surface of the perforated thermosetting composite layer to obtain a galling perforated thermosetting composite layer, soaking the galling perforated thermosetting composite layer in 6% NaOH solution for 36 hours, taking out the composite layer, washing the composite layer to be neutral by using tap water, and airing to obtain a porous thermosetting composite layer, wherein the thickness of the porous thermosetting composite layer is 1.8 cm;
(3) cutting the thermoplastic composite material layer and the porous thermosetting composite material layer according to the size of a die cavity for compression molding to enable the length and the width of the thermoplastic composite material layer and the porous thermosetting composite material layer to be respectively consistent with the length and the width of the die cavity, wherein the porous thermosetting composite material layer is provided with a boundary upper through hole, a boundary lower through hole and a central upper through hole, and the central upper through hole and the central lower through hole;
(4) placing 1 thermoplastic composite material layer at the bottom of a cavity of a compression molding die, then laying 1 porous thermosetting composite material layer on the thermoplastic composite material layer, then laying 1 thermoplastic composite material layer and 1 porous thermosetting composite material layer on the thermoplastic composite material layer in sequence, finally laying 1 thermoplastic composite material layer, heating the die to raise the temperature to 40 ℃, exhausting gas for 10min, closing the die, preheating at 180 ℃ for 15min, and then carrying out compression molding under the pressure of 30MPa to prepare the internal reinforced composite board made of traditional Chinese medicine residues.
Example 2: a preparation method of an internal reinforced composite board prepared from traditional Chinese medicine dregs comprises the following steps:
(1) uniformly mechanically mixing polypropylene, maleic anhydride, zinc stearate, 4' -methylene bis (2, 6-di-tert-butylphenol), basic magnesium sulfate whisker and microcrystalline cellulose (20 meshes) according to the mass ratio of 100: 5: 1: 0.8: 5, and then extruding and granulating to obtain composite plastic particles, wherein the extrusion temperature is 170 ℃; mechanically mixing the composite plastic particles and the traditional Chinese medicine dregs (40 meshes) according to the mass ratio of 100: 30, and rolling the mixture into a thermoplastic composite layer by using a double-roller rubber mixing mill, wherein the rolling temperature is 165 ℃, and the thickness of the thermoplastic composite layer is 0.6 cm;
(2) weighing m-benzene unsaturated polyester resin, cobalt naphthoate, methyl ethyl ketone peroxide, traditional Chinese medicine dregs (40 meshes) and linen according to the mass ratio of 100: 0.5: 10, mechanically stirring the unsaturated polyester resin and the cobalt naphthoate uniformly, adding the methyl ethyl ketone peroxide and stirring uniformly, then adding the traditional Chinese medicine dregs and stirring uniformly again to obtain traditional Chinese medicine dregs filling resin paste; finally, adopting a layering mould pressing process, taking linen as a reinforcing material, filling resin paste into traditional Chinese medicine dregs as a matrix, manufacturing a linen reinforced resin-based composite material plate, carrying out mould pressing pressure of 30Pa, curing the linen reinforced resin-based composite material plate for 12 hours at room temperature, carrying out postcuring treatment on the linen reinforced resin-based composite material plate for 2 hours at 75 ℃, cooling to room temperature to obtain a thermosetting composite material layer, drilling upper and lower through holes on the thermosetting composite material layer by using drilling equipment to obtain a perforated thermosetting composite material layer, then carrying out galling on the surface of the perforated thermosetting composite material layer to obtain a galling perforated thermosetting composite material layer, soaking the galling perforated thermosetting composite material layer in a NaOH solution with the mass concentration of 2% for 24 hours, taking out, washing the composite material layer to be neutral by using tap water, and airing to obtain a porous thermosetting composite material layer, wherein the;
(3) cutting the thermoplastic composite material layer and the porous thermosetting composite material layer according to the size of a die cavity for compression molding to enable the length and the width of the thermoplastic composite material layer and the porous thermosetting composite material layer to be respectively consistent with the length and the width of the die cavity, wherein the porous thermosetting composite material layer is provided with a boundary upper through hole, a boundary lower through hole and a central upper through hole, and the central upper through hole and the central lower through hole;
(4) placing 1 thermoplastic composite material layer at the bottom of a cavity of a compression molding die, then laying 1 porous thermosetting composite material layer on the thermoplastic composite material layer, then laying 1 thermoplastic composite material layer and 1 porous thermosetting composite material layer on the thermoplastic composite material layer in sequence, finally laying 1 thermoplastic composite material layer, heating the die to raise the temperature to 30 ℃, exhausting air for 5min, closing the die, preheating at 170 ℃ for 10min, and then carrying out compression molding under the pressure of 10MPa to prepare the internal reinforced composite board made of traditional Chinese medicine residues.
Example 3: a preparation method of an internal reinforced composite board prepared from traditional Chinese medicine dregs comprises the following steps:
(1) uniformly mechanically mixing polyethylene, maleic anhydride, calcium stearate, 4' -methylene bis (2, 6-di-tert-butylphenol), basic magnesium sulfate whisker and microcrystalline cellulose (230 meshes) according to the mass ratio of 100: 15: 2: 1.2: 15, and then extruding and granulating to obtain composite plastic particles, wherein the extrusion temperature is 190 ℃; mechanically mixing the composite plastic particles and the traditional Chinese medicine dregs (120 meshes) according to the mass ratio of 100: 50, and rolling the mixture into a thermoplastic composite material layer by using a double-roller rubber mixing mill, wherein the rolling temperature is 185 ℃, and the thickness of the thermoplastic composite material layer is 1 cm;
(2) respectively weighing the o-benzene type unsaturated polyester resin, the cobalt naphthoate, the methyl ethyl ketone peroxide, the traditional Chinese medicine dregs (120 meshes) and the hemp cloth according to the mass ratio of 100: 1.5: 20: 30, mechanically and uniformly stirring the unsaturated polyester resin and the cobalt naphthoate, adding the methyl ethyl ketone peroxide and uniformly stirring, then adding the traditional Chinese medicine dregs and uniformly stirring again to obtain traditional Chinese medicine dreg filling resin paste; finally, adopting a layering mould pressing process, taking linen as a reinforcing material, filling resin paste into traditional Chinese medicine dregs as a matrix, manufacturing a linen reinforced resin-based composite material plate, carrying out mould pressing pressure of 90Pa, curing the linen reinforced resin-based composite material plate for 24 hours at room temperature, carrying out curing treatment on the linen reinforced resin-based composite material plate at 85 ℃ for 4 hours, cooling the cured composite material plate to room temperature to obtain a thermosetting composite material layer, drilling upper and lower through holes on the thermosetting composite material layer by using drilling equipment to obtain a perforated thermosetting composite material layer, then carrying out galling on the surface of the perforated thermosetting composite material layer to obtain a galling perforated thermosetting composite material layer, soaking the galling perforated thermosetting composite material layer in a NaOH solution with the mass concentration of 10% for 48 hours, taking out the composite material layer, washing the composite material layer to be neutral by using tap water, and airing;
(3) cutting the thermoplastic composite material layer and the porous thermosetting composite material layer according to the size of a die cavity for compression molding to enable the length and the width of the thermoplastic composite material layer and the porous thermosetting composite material layer to be respectively consistent with the length and the width of the die cavity, wherein the porous thermosetting composite material layer is provided with a boundary upper through hole, a boundary lower through hole and a central upper through hole, and the central upper through hole and the central lower through hole;
(4) placing 1 thermoplastic composite material layer at the bottom of a cavity of a compression molding die, then laying 1 porous thermosetting composite material layer on the thermoplastic composite material layer, then laying 1 thermoplastic composite material layer and 1 porous thermosetting composite material layer on the thermoplastic composite material layer in sequence, finally laying 1 thermoplastic composite material layer, heating the die to raise the temperature to 50 ℃, exhausting gas for 15min, closing the die, preheating at 190 ℃ for 20min, and then carrying out compression molding under the pressure of 50MPa to prepare the internal reinforced composite board made of traditional Chinese medicine residues.
Example 4: a preparation method of an internal reinforced composite board prepared from traditional Chinese medicine dregs comprises the following steps:
(1) mechanically and uniformly mixing polypropylene, maleic anhydride, zinc stearate, 2, 6-di-tert-butyl-p-methylphenol, basic magnesium sulfate whisker and microcrystalline cellulose (20 meshes) according to the mass ratio of 100: 10: 2: 0.8: 10: 15, and then extruding and granulating to obtain composite plastic particles, wherein the extrusion temperature is 170 ℃; mechanically mixing the composite plastic particles and the traditional Chinese medicine dregs (80 meshes) according to the mass ratio of 100: 50, and rolling the mixture into a thermoplastic composite material layer by using a double-roller rubber mixing mill, wherein the rolling temperature is 165 ℃, and the thickness of the thermoplastic composite material layer is 0.8 cm;
(2) weighing m-benzene unsaturated polyester resin, cobalt naphthoate, methyl ethyl ketone peroxide, traditional Chinese medicine dregs (40 meshes) and jute cloth according to the mass ratio of 100: 1.5: 0.5: 15: 30, mechanically stirring the unsaturated polyester resin and the cobalt naphthoate uniformly, adding the methyl ethyl ketone peroxide and stirring uniformly, then adding the traditional Chinese medicine dregs and stirring uniformly again to obtain traditional Chinese medicine dregs filling resin paste; finally, adopting a layering mould pressing process, taking linen as a reinforcing material, filling resin paste into traditional Chinese medicine dregs as a matrix, manufacturing a linen reinforced resin-based composite material plate, carrying out mould pressing pressure of 60Pa, curing the linen reinforced resin-based composite material plate for 24 hours at room temperature, carrying out postcuring treatment on the linen reinforced resin-based composite material plate for 3 hours, cooling the linen reinforced resin-based composite material plate to room temperature to obtain a thermosetting composite material layer, drilling upper and lower through holes on the thermosetting composite material layer by using drilling equipment to obtain a perforated thermosetting composite material layer, then carrying out galling on the surface of the perforated thermosetting composite material layer to obtain a galling perforated thermosetting composite material layer, soaking the galling perforated thermosetting composite material layer in NaOH solution with the mass concentration of 10% for 24 hours, taking out the composite material layer, washing the composite material layer to be neutral by using tap water, and airing the;
(3) cutting the thermoplastic composite material layer and the porous thermosetting composite material layer according to the size of a die cavity for compression molding to enable the length and the width of the thermoplastic composite material layer and the porous thermosetting composite material layer to be respectively consistent with the length and the width of the die cavity, wherein the porous thermosetting composite material layer is provided with a boundary upper through hole, a boundary lower through hole and a central upper through hole, and the central upper through hole and the central lower through hole;
(4) placing 1 thermoplastic composite material layer at the bottom of a cavity of a compression molding die, then laying 1 porous thermosetting composite material layer on the thermoplastic composite material layer, then laying 1 thermoplastic composite material layer and 1 porous thermosetting composite material layer on the thermoplastic composite material layer in sequence, finally laying 1 thermoplastic composite material layer, heating the die to raise the temperature to 50 ℃, exhausting air for 5min, closing the die, preheating at 180 ℃ for 20min, and then carrying out compression molding under the pressure of 10MPa to prepare the internal reinforced composite board made of traditional Chinese medicine dregs.
Example 5: a preparation method of an internal reinforced composite board prepared from traditional Chinese medicine dregs comprises the following steps:
(1) mechanically and uniformly mixing polypropylene, maleic anhydride, calcium stearate, 4' -methylene bis (2, 6-di-tert-butylphenol), basic magnesium sulfate whisker and microcrystalline cellulose (125 meshes) according to the mass ratio of 100: 15: 1: 15: 5, and then extruding and granulating to obtain composite plastic particles, wherein the extrusion temperature is 180 ℃; mechanically mixing the composite plastic particles and the traditional Chinese medicine dregs (120 meshes) according to the mass ratio of 100: 30, and rolling the mixture into a thermoplastic composite material layer by using a double-roller rubber mixing mill, wherein the rolling temperature is 175 ℃, and the thickness of the thermoplastic composite material layer is 1 cm;
(2) weighing o-benzene type unsaturated polyester resin, cobalt naphthoate, methyl ethyl ketone peroxide, traditional Chinese medicine dregs (120 meshes) and ramie cloth according to the mass ratio of 100: 0.5: 1: 20: 10, mechanically and uniformly stirring the unsaturated polyester resin and the cobalt naphthoate, adding the methyl ethyl ketone peroxide, uniformly stirring, adding the traditional Chinese medicine dregs, uniformly stirring again to obtain traditional Chinese medicine dregs filled resin paste; finally, adopting a layering mould pressing process, taking linen as a reinforcing material, filling resin paste into traditional Chinese medicine dregs as a matrix, manufacturing a linen reinforced resin-based composite material plate, carrying out mould pressing pressure of 60Pa, curing the linen reinforced resin-based composite material plate for 24 hours at room temperature, carrying out curing treatment on the linen reinforced resin-based composite material plate at 80 ℃ for 4 hours, cooling the cured composite material plate to room temperature to obtain a thermosetting composite material layer, drilling upper and lower through holes on the thermosetting composite material layer by using drilling equipment to obtain a perforated thermosetting composite material layer, then carrying out galling on the surface of the perforated thermosetting composite material layer to obtain a galling perforated thermosetting composite material layer, soaking the galling perforated thermosetting composite material layer in a NaOH solution with the mass concentration of 2% for 36 hours, taking out the composite material layer, washing the composite material layer to be neutral by using tap water, and airing;
(3) cutting the thermoplastic composite material layer and the porous thermosetting composite material layer according to the size of a die cavity for compression molding to enable the length and the width of the thermoplastic composite material layer and the porous thermosetting composite material layer to be respectively consistent with the length and the width of the die cavity, wherein the porous thermosetting composite material layer is provided with a boundary upper through hole, a boundary lower through hole and a central upper through hole, and the central upper through hole and the central lower through hole;
(4) placing 1 thermoplastic composite material layer at the bottom of a cavity of a compression molding die, then laying 1 porous thermosetting composite material layer on the thermoplastic composite material layer, then laying 1 thermoplastic composite material layer and 1 porous thermosetting composite material layer on the thermoplastic composite material layer in sequence, finally laying 1 thermoplastic composite material layer, heating the die to raise the temperature to 30 ℃, exhausting gas for 10min, closing the die, preheating at 190 ℃ for 10min, and then carrying out compression molding under the pressure of 30MPa to prepare the internal reinforced composite board made of traditional Chinese medicine residues.
Example 6: a preparation method of an internal reinforced composite board prepared from traditional Chinese medicine dregs comprises the following steps:
(1) uniformly mechanically mixing polyethylene, maleic anhydride, zinc stearate, 2, 6-di-tert-butyl-p-methylphenol, basic magnesium sulfate whisker and microcrystalline cellulose (230 meshes) according to the mass ratio of 100: 5: 2: 1.2: 5: 15, and then extruding and granulating to obtain composite plastic particles, wherein the extrusion temperature is 170 ℃; mechanically mixing the composite plastic particles and the traditional Chinese medicine dregs (120 meshes) according to the mass ratio of 100: 30, and rolling the mixture into a thermoplastic composite material layer by using a double-roller rubber mixing mill, wherein the rolling temperature is 165 ℃, and the thickness of the thermoplastic composite material layer is 1 cm;
(2) weighing m-benzene unsaturated polyester resin, cobalt naphthoate, methyl ethyl ketone peroxide, traditional Chinese medicine dregs (40 meshes) and linen according to the mass ratio of 100: 0.5: 1.5: 10: 20, mechanically stirring the unsaturated polyester resin and the cobalt naphthoate uniformly, adding the methyl ethyl ketone peroxide and stirring uniformly, then adding the traditional Chinese medicine dregs and stirring uniformly again to obtain traditional Chinese medicine dregs filling resin paste; finally, adopting a layering mould pressing process, taking linen as a reinforcing material, filling resin paste into traditional Chinese medicine dregs as a matrix, manufacturing a linen reinforced resin matrix composite plate, carrying out mould pressing pressure of 90Pa, curing the linen reinforced resin matrix composite plate for 12 hours at room temperature, carrying out curing treatment on the linen reinforced resin matrix composite plate at 85 ℃ for 2 hours, cooling the cured composite plate to room temperature to obtain a thermosetting composite layer, drilling upper and lower through holes on the thermosetting composite layer by using drilling equipment to obtain a perforated thermosetting composite layer, then carrying out galling on the surface of the perforated thermosetting composite layer to obtain a galling perforated thermosetting composite layer, soaking the galling perforated thermosetting composite layer in a NaOH solution with the mass concentration of 6% for 48 hours, taking out the composite layer, washing the composite layer to be neutral by using tap water, and airing to obtain a porous thermosetting composite layer, wherein the thickness of the porous thermosetting composite layer is;
(3) cutting the thermoplastic composite material layer and the porous thermosetting composite material layer according to the size of a die cavity for compression molding to enable the length and the width of the thermoplastic composite material layer and the porous thermosetting composite material layer to be respectively consistent with the length and the width of the die cavity, wherein the porous thermosetting composite material layer is provided with a boundary upper through hole, a boundary lower through hole and a central upper through hole, and the central upper through hole and the central lower through hole;
(4) placing 1 thermoplastic composite material layer at the bottom of a mold cavity of a compression molding mold, then laying 1 porous thermosetting composite material layer on the mold cavity, then laying 1 thermoplastic composite material layer and 1 porous thermosetting composite material layer on the mold cavity in sequence, finally laying 1 thermoplastic composite material layer, heating the mold to raise the temperature to 40 ℃, exhausting gas for 15min, closing the mold, preheating for 15min at the temperature of 170 ℃, and then carrying out compression molding under the pressure of 50MPa to prepare the internal reinforced composite plate made of traditional Chinese medicine dregs.
Example 7: a preparation method of an internal reinforced composite board prepared from traditional Chinese medicine dregs comprises the following steps:
(1) uniformly mechanically mixing polypropylene, maleic anhydride, zinc stearate, 4' -methylene bis (2, 6-di-tert-butylphenol), basic magnesium sulfate whisker and microcrystalline cellulose (20 meshes) according to the mass ratio of 100: 10: 1.5: 0.8: 15: 10, and then extruding and granulating to obtain composite plastic particles, wherein the extrusion temperature is 180 ℃; mechanically mixing the composite plastic particles and the traditional Chinese medicine dregs (80 meshes) according to the mass ratio of 100: 40, and rolling the mixture into a thermoplastic composite material layer by using a double-roller rubber mixing mill, wherein the rolling temperature is 185 ℃, and the thickness of the thermoplastic composite material layer is 1 cm;
(2) weighing m-benzene unsaturated polyester resin, cobalt naphthoate, methyl ethyl ketone peroxide, traditional Chinese medicine dregs (80 meshes) and hemp cloth according to the mass ratio of 100: 1.5: 1: 10: 30, mechanically and uniformly stirring the unsaturated polyester resin and the cobalt naphthoate, adding the methyl ethyl ketone peroxide, uniformly stirring, adding the traditional Chinese medicine dregs, uniformly stirring again to obtain traditional Chinese medicine dregs filled resin paste; finally, adopting a layering mould pressing process, taking linen as a reinforcing material, filling resin paste into traditional Chinese medicine dregs as a matrix, manufacturing a linen reinforced resin-based composite material plate, carrying out mould pressing pressure of 60Pa, curing the linen reinforced resin-based composite material plate for 18 hours at room temperature, carrying out postcuring treatment on the linen reinforced resin-based composite material plate for 3 hours at 75 ℃, cooling the linen reinforced resin-based composite material plate to room temperature to obtain a thermosetting composite material layer, drilling upper and lower through holes on the thermosetting composite material layer by using drilling equipment to obtain a perforated thermosetting composite material layer, then carrying out galling on the surface of the perforated thermosetting composite material layer to obtain a galling perforated thermosetting composite material layer, soaking the galling perforated thermosetting composite material layer in a NaOH solution with the mass concentration of 2% for 48 hours, taking out the composite material layer, washing the composite material layer to be neutral by using tap water;
(3) cutting the thermoplastic composite material layer and the porous thermosetting composite material layer according to the size of a die cavity for compression molding to enable the length and the width of the thermoplastic composite material layer and the porous thermosetting composite material layer to be respectively consistent with the length and the width of the die cavity, wherein the porous thermosetting composite material layer is provided with a boundary upper through hole, a boundary lower through hole and a central upper through hole, and the central upper through hole and the central lower through hole;
(4) placing 1 thermoplastic composite material layer at the bottom of a mold cavity of a compression molding mold, then laying 1 porous thermosetting composite material layer on the mold cavity, then laying 1 thermoplastic composite material layer and 1 porous thermosetting composite material layer on the mold cavity in sequence, finally laying 1 thermoplastic composite material layer, heating the mold to raise the temperature to 40 ℃, exhausting for 15min, closing the mold, preheating for 10min at the temperature of 180 ℃, and then carrying out compression molding under the pressure of 50MPa to prepare the internal reinforced composite plate made of traditional Chinese medicine dregs.
Example 8: a preparation method of an internal reinforced composite board prepared from traditional Chinese medicine dregs comprises the following steps:
(1) mechanically and uniformly mixing polypropylene, maleic anhydride, calcium stearate, 2, 6-di-tert-butyl-p-methylphenol, basic magnesium sulfate whisker and microcrystalline cellulose (200 meshes) according to the mass ratio of 100: 8: 1.6: 0.9: 12: 9, and then extruding and granulating to obtain composite plastic particles, wherein the extrusion temperature is 178 ℃; mechanically mixing the composite plastic particles and the traditional Chinese medicine dregs (60 meshes) according to the mass ratio of 100: 35, and rolling the mixture into a thermoplastic composite material layer by using a double-roller rubber mixing mill, wherein the rolling temperature is 180 ℃, and the thickness of the thermoplastic composite material layer is 0.7 cm;
(2) respectively weighing o-benzene type unsaturated polyester resin, cobalt naphthoate, methyl ethyl ketone peroxide, traditional Chinese medicine dregs (100 meshes) and jute cloth according to the mass ratio of 100: 0.8: 0.9: 18, mechanically and uniformly stirring the unsaturated polyester resin and the cobalt naphthoate, adding the methyl ethyl ketone peroxide and uniformly stirring, then adding the traditional Chinese medicine dregs and uniformly stirring again to obtain traditional Chinese medicine dregs filling resin paste; finally, adopting a layering mould pressing process, taking linen as a reinforcing material, filling resin paste into traditional Chinese medicine dregs as a matrix, manufacturing a linen reinforced resin-based composite material plate, carrying out mould pressing pressure of 70Pa, curing the linen reinforced resin-based composite material plate for 15 hours at room temperature, carrying out postcuring treatment on the linen reinforced resin-based composite material plate for 2.4 hours, cooling the composite material plate to room temperature to obtain a thermosetting composite material layer, drilling upper and lower through holes on the thermosetting composite material layer by using drilling equipment to obtain a perforated thermosetting composite material layer, then carrying out galling on the surface of the perforated thermosetting composite material layer to obtain a galling perforated thermosetting composite material layer, soaking the galling perforated thermosetting composite material layer in a NaOH solution with the mass concentration of 4% for 30 hours, taking out the composite material layer, washing the composite material layer to be neutral by using tap water, and airing the composite material layer to;
(3) cutting the thermoplastic composite material layer and the porous thermosetting composite material layer according to the size of a die cavity for compression molding to enable the length and the width of the thermoplastic composite material layer and the porous thermosetting composite material layer to be respectively consistent with the length and the width of the die cavity, wherein the porous thermosetting composite material layer is provided with a boundary upper through hole, a boundary lower through hole and a central upper through hole, and the central upper through hole and the central lower through hole;
(4) placing 1 thermoplastic composite material layer at the bottom of a mold cavity of a compression molding mold, then laying 1 porous thermosetting composite material layer on the mold cavity, then laying 1 thermoplastic composite material layer and 1 porous thermosetting composite material layer on the mold cavity in sequence, finally laying 1 thermoplastic composite material layer, heating the mold to raise the temperature to 38 ℃, exhausting gas for 12min, closing the mold, preheating for 18min at 178 ℃, and then carrying out compression molding under the pressure of 40MPa to prepare the internal reinforced composite plate made of traditional Chinese medicine dregs.
The following tests prove the effect of example 1 of the present invention, and the test results are as follows:
static bending strength: 35.66MPa, static bending modulus: 2.28GPa, tensile strength: 28.58MPa, unnotched impact strength: 18.31kJ/m2Hardness: 61D.
The results show that the plate in the embodiment 1 has good strength, modulus and hardness, and the relevant indexes of the plate obviously exceed the requirements of the forestry industry standard LY/T1613-2004 of the people's republic of China.

Claims (9)

1. An internal reinforced composite board made of traditional Chinese medicine dregs is characterized by comprising three thermoplastic composite material layers and two porous thermosetting composite material layers, wherein one porous thermosetting composite material layer is arranged between each two thermoplastic composite material layers; the three thermoplastic composite material layers are completely the same in composition and structure and are prepared by mixing, extruding and rolling polyolefin plastic particles, traditional Chinese medicine dregs, maleic anhydride, stearate, an antioxidant, basic magnesium sulfate whisker and microcrystalline cellulose; the two porous thermosetting composite material layers have the same composition and structure and are prepared from unsaturated polyester resin, cobalt naphthanate, methyl ethyl ketone peroxide, traditional Chinese medicine residues and linen through hand pasting, die pressing, drilling, surface napping and alkali etching.
2. The internal reinforced composite board made of traditional Chinese medicine dregs according to claim 1, wherein the polyolefin plastic particles are one of polyethylene or polypropylene.
3. The internal reinforced composite board made of traditional Chinese medicine dregs according to claim 1, wherein the particle size of the traditional Chinese medicine dregs is 40-120 meshes.
4. The internal reinforced composite board made of traditional Chinese medicine dregs according to claim 1, characterized in that the stearate is one of calcium stearate or zinc stearate.
5. The internal reinforced composite board made of traditional Chinese medicine dregs according to claim 1, wherein the antioxidant is one of 2, 6-di-tert-butyl-p-methylphenol or 4, 4' -methylene bis (2, 6-di-tert-butylphenol).
6. The internal reinforced composite board made of traditional Chinese medicine dregs according to claim 1, wherein the grain size of the microcrystalline cellulose is 20-230 meshes.
7. The internal reinforced composite board made of traditional Chinese medicine dregs according to claim 1, wherein the unsaturated polyester resin is one of ortho-benzene type or meta-benzene type unsaturated polyester resin.
8. The internal reinforced composite board made of traditional Chinese medicine residues according to claim 1, wherein the ramie cloth is one of ramie cloth, linen, hemp cloth and jute cloth.
9. The production method of the internal reinforced composite board made of traditional Chinese medicine dregs according to claim 1, characterized by comprising the following steps:
(1) evenly mechanically mixing polyolefin plastic particles, maleic anhydride, stearate, an antioxidant, basic magnesium sulfate whiskers and microcrystalline cellulose according to the mass ratio of 100: 5-15: 1-2: 0.8-1.2: 5-15, and then extruding and granulating to obtain composite plastic particles, wherein the extrusion temperature is 170-190 ℃; mechanically mixing the composite plastic particles and the traditional Chinese medicine dregs according to the mass ratio of 100: 30-50, and rolling the mixture into a thermoplastic composite material layer by using a double-roller rubber mixing mill, wherein the rolling temperature is 165-;
(2) respectively weighing unsaturated polyester resin, cobalt naphthoate, methyl ethyl ketone peroxide, traditional Chinese medicine dregs and linen according to the mass ratio of 100: 0.5-1.5: 10-20: 10-30, mechanically and uniformly stirring the unsaturated polyester resin and the cobalt naphthoate, adding the methyl ethyl ketone peroxide and uniformly stirring, then adding the traditional Chinese medicine dregs and uniformly stirring again to obtain traditional Chinese medicine dreg filling resin paste; finally, adopting a layering mould pressing process, taking linen as a reinforcing material, filling resin paste into dregs of traditional Chinese medicine as a matrix, manufacturing a linen reinforced resin matrix composite plate, carrying out mould pressing pressure of 30-90Pa, curing at room temperature for 12-24h, carrying out post-curing treatment on the linen reinforced resin matrix composite plate at the temperature of 75-85 ℃ for 2-4h, cooling to room temperature to obtain a thermosetting composite layer, drilling upper and lower through holes on the thermosetting composite layer by using drilling equipment to obtain a perforated thermosetting composite layer, then carrying out galling on the surface of the perforated thermosetting composite layer to obtain a galling perforated thermosetting composite layer, putting the galling perforated thermosetting composite layer into a NaOH solution with the mass concentration of 2-10% for soaking treatment for 24-48h, taking out, washing to be neutral by using tap water, airing to obtain a porous thermosetting composite layer, the thickness of the porous thermosetting composite material layer is 0.6-3 cm;
(3) cutting the thermoplastic composite material layer and the porous thermosetting composite material layer according to the size of a die cavity for compression molding to enable the length and the width of the thermoplastic composite material layer and the porous thermosetting composite material layer to be respectively consistent with the length and the width of the die cavity, wherein the porous thermosetting composite material layer is provided with a boundary upper through hole, a boundary lower through hole and a central upper through hole, and the central upper through hole and the central lower through hole;
(4) placing 1 layer of thermoplastic composite material layer at the bottom of a mold cavity of a compression molding mold, then laying 1 layer of porous thermosetting composite material layer on the mold cavity, then laying 1 layer of thermoplastic composite material layer and 1 layer of porous thermosetting composite material layer on the mold cavity in sequence, and finally laying 1 layer of thermoplastic composite material layer, wherein the thicknesses of the three layers of thermoplastic composite material layers are the same, the thicknesses of the two layers of porous thermosetting composite material layers are the same, heating the mold to raise the temperature to 30-50 ℃, exhausting for 5-15min, closing the mold, preheating for 10-20min within the range of 170-190 ℃, and then performing compression molding under the pressure of 10-50MPa to prepare the internal reinforced composite plate prepared from traditional Chinese medicine dregs.
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