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A kind of preparation method of biomass-based sheet-like activated carbon reinforced SMC composite material

A technology of composite materials and biomass, which is applied in the field of preparation of reinforced SMC composite materials, can solve the problems of low impact resistance, poor thermal conductivity, and low strength, and achieve high impact resistance, high heat resistance, and high bending strength Effect

Active Publication Date: 2022-01-07
NORTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems that existing SMC materials make products with poor thermal conductivity, low impact resistance, easy cracking and low strength, and provide a kind of biomass-based sheet-like activated carbon reinforced SMC composite material preparation method

Method used

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  • A kind of preparation method of biomass-based sheet-like activated carbon reinforced SMC composite material
  • A kind of preparation method of biomass-based sheet-like activated carbon reinforced SMC composite material
  • A kind of preparation method of biomass-based sheet-like activated carbon reinforced SMC composite material

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specific Embodiment approach 1

[0026] Specific embodiment one: the preparation method of a kind of biomass-based sheet-shaped activated carbon reinforced SMC composite material in this embodiment is completed according to the following steps:

[0027] 1. Pretreatment of biomass powder:

[0028] ①. First, clean the biomass straw, then dry it to constant weight, crush it with a pulverizer, and then sieve it to obtain biomass straw powder;

[0029] ②. Put biomass straw powder, deionized water, hydrogen peroxide solution and acetic acid into the reactor, stir evenly, and then seal the reactor; heat the sealed reactor from room temperature to 80°C to 200°C, and then Insulate at 80°C to 200°C for 2h to 24h, cool to room temperature to obtain the reacted biomass pretreatment powder;

[0030] The mass ratio of biomass straw powder, deionized water, hydrogen peroxide solution and acetic acid described in step 1.2 is 1:(20~50):(5~20):(1~10);

[0031] ③. First, use distilled water to wash the reacted biomass pretrea...

specific Embodiment approach 2

[0045] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is: the biomass straw described in step ① is corn straw or wheat straw; the particle size of the biomass straw powder described in step ① is 10 μm ~70μm; in step 1, the biomass straw is first cleaned with distilled water until the distilled water is free of turbidity, then dried at 60°C to constant weight, crushed with a pulverizer, and sieved with a stainless steel screen to obtain biomass straw powder . Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0046] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the mass fraction of hydrogen peroxide solution described in step 1.2 is 5%~20%; the mass fraction of described acetic acid is 5% to 40%; in step 1 and 2, the rate of heating the sealed reactor from room temperature to 80°C to 200°C is 1°C / min to 10°C / min. Other steps are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a preparation method of a biomass-based sheet-shaped activated carbon reinforced SMC composite material, which relates to a preparation method of a reinforced SMC composite material. The purpose of the present invention is to solve the problems that the existing SMC materials make the products have poor thermal conductivity, low impact resistance, easy cracking and low strength. Methods: 1. Pretreatment of biomass powder; 2. Preparation of biomass-based flake activated carbon; 3. Composite. The present invention is mainly by adding biomass-based flaky activated carbon into the SMC composite material, and in the solidification process, the biomass-based flaky activated carbon can have a cross-linking reaction (physical cross-linking point) with the material, and the biomass-based flaky activated carbon has Rich micro-nano capillary channels have good thermal conductivity, which makes SMC materials have high mechanical strength, high tensile strength, high impact resistance, high bending strength and high heat resistance. The invention can obtain a biomass-based sheet-like activated carbon reinforced SMC composite material.

Description

technical field [0001] The invention relates to a preparation method of reinforced SMC composite material. Background technique [0002] SMC (Sheet Moulding Compound) is a sheet molding compound, which is mainly composed of unsaturated polyester resin and glass fiber as the middle core, and the upper and lower sides are covered with polyethylene film, and then it can be molded after aging for a certain period of time. The preparation method of this composite material The molding cycle is short, the production cost is low, and it has the advantages of low density, light weight, high modulus, etc. The existing SMC materials make the products have poor thermal conductivity, low impact resistance, easy cracking and low strength. Contents of the invention [0003] The purpose of the present invention is to solve the problems that existing SMC materials make products with poor thermal conductivity, low impact resistance, easy cracking and low strength, and provide a kind of bio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/06C08L23/06C08K7/00C08K7/24C08K7/14C08J5/18C09K5/14C01B32/348C01B32/324
CPCC08J5/18C09K5/14C01B32/348C01B32/324C08J2367/06C08J2423/06C08K7/00C08K7/24C08K7/14
Inventor 马生华赵航王刚王惠白晋波
Owner NORTHWEST UNIV
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