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EVA (Ethylene Vinyl Acetate) foamed material with thermoplastic blue-green algae biomass and preparation method thereof

A foaming material and biomass technology, which is applied in the field of EVA foaming material containing thermoplastic cyanobacteria biomass and its preparation, can solve the problems that modified cyanobacteria do not have thermoplasticity, etc., and achieve excellent thermoplasticity and hydrophobicity, good compatibility, The effect of protecting the ecological environment

Inactive Publication Date: 2017-06-20
唐爱兰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the modified cyanobacteria still do not possess thermoplasticity, and a certain amount of plasticizer needs to be added during the preparation of composite materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of preparation method of the EVA foam material containing thermoplastic cyanobacteria biomass, concrete steps are as follows:

[0022] (1) Take 1000g of cyanobacteria biomass from Lake Taihu, Jiangsu, add 1000g of ethyl acetate, then add 15g of stannous octoate, and react at 90°C for 0.5h; control the temperature at 90°C, add 75g of propylene isocyanate, and continue the reaction for 1.5h; cool , washed with acetone, and dried to obtain modified cyanobacterial biomass;

[0023] (2) Take the above-mentioned modified cyanobacterial biomass, add an appropriate amount of water to make the modified cyanobacterial biomass fully dispersed, then add 550g methyl acrylate and 35g potassium persulfate, control the temperature at 80°C, react for 10h, wash with ethanol, and dry to obtain Thermoplastic cyanobacterial biomass;

[0024] (3) Thermoplastic cyanobacteria biomass 500g, EVA500g, bis-tert-butyl peroxide dicumyl peroxide (BIBP) 10g, stearic acid 20g, zinc stearate 5g,...

Embodiment 2

[0027] A kind of preparation method of the EVA foam material containing thermoplastic cyanobacteria biomass, concrete steps are as follows:

[0028] (1) Get 1000g of cyanobacteria biomass in Taihu Lake, Jiangsu, add 1000g ethyl acetate, then add 15g stannous octoate, and react at 90°C for 0.5h; control the temperature at 90°C, add 200g3-isocyanate, and continue the reaction for 3h; cool, After washing with acetone and drying, the modified cyanobacterial biomass is obtained;

[0029] (2) Take the above-mentioned modified cyanobacteria biomass, add an appropriate amount of water to fully disperse the modified cyanobacteria biomass, then add 500g methyl methacrylate, 400g butyl acrylate and 50g potassium persulfate, control the temperature at 80°C, and react for 12h , washed with ethanol, and dried to obtain thermoplastic cyanobacterial biomass;

[0030] (3) 500g of thermoplastic cyanobacterial biomass, EVA500g, bis-tert-butylperoxide dicumyl peroxide (BIBP) 10g, stearic acid 10...

Embodiment 3

[0033] A kind of preparation method of the EVA foam material containing thermoplastic cyanobacteria biomass, concrete steps are as follows:

[0034] (1) Take 1000g of cyanobacteria biomass in Chaohu Lake, Anhui Province, add 800g ethyl acetate, then add 15g stannous octoate, and react at 90°C for 0.5h; control the temperature at 90°C, add 55g3-isocyanate, and continue the reaction for 3h; cool, After washing with acetone and drying, the modified cyanobacterial biomass is obtained;

[0035](2) Take the above-mentioned modified cyanobacteria biomass, add an appropriate amount of water to make the modified cyanobacteria biomass fully dispersed, then add 500g methyl methacrylate and 10g potassium persulfate, control the temperature at 80°C, react for 12h, wash with ethanol, and dry Afterwards, thermoplastic cyanobacterial biomass is obtained;

[0036] (3) 200g of thermoplastic cyanobacterial biomass, EVA800g, bis-tert-butyl peroxide dicumyl peroxide (BIBP) 10g, stearic acid 10g, ...

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PUM

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Abstract

The invention discloses an EVA (Ethylene Vinyl Acetate) foamed material with a thermoplastic blue-green algae biomass and a preparation method thereof. The EVA foamed material comprises the following main components in parts by weight: 15-50 parts of a thermoplastic blue-green algae biomass, 50-85 parts of EVA, 0.5-2.5 parts of a cross-linking agent, 1-5 parts of a lubricant and 1-4 parts of a foaming agent, wherein the thermoplastic blue-green algae biomass is prepared from the following components in parts by weight: 100 parts of blue-green algae biomasses, 50-100 parts of a reaction solvent, 0.5-5 parts of a catalyst, 5-20 parts of a modifier, 50-100 parts of a grafting monomer and 1-10 parts of an initiator. The preparation method comprises the following steps: synthesizing the thermoplastic blue-green algae biomass through polymerization reaction, putting the thermoplastic blue-green algae biomass, the EVA, the cross-linking agent, the lubricant and the foaming agent into a high-speed stirrer, sufficiently stirring for 10-30 minutes at 60-100 DEG C, mixing and melting the mixture for 10-20 minutes at 100-120 DEG C, after complete melting and plastification, discharging a flaky material, cutting, cross-linking, and foaming, thereby obtaining the foamed material. A feasible way for high-end application of blue-green algae resources is provided.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an EVA foam material containing thermoplastic cyanobacteria biomass and a preparation method thereof. Background technique [0002] Polyethylene-vinyl acetate (EVA) is a class of thermoplastics with rubber elasticity. In EVA molecules, due to the presence of vinyl acetate (VA) structural units, the regularity of polyethylene molecules is greatly reduced, and its crystallinity decreases accordingly, so that the molecular chains have a great ability to internally rotate during thermal motion. The improvement of molecular chain flexibility improves, and the macroscopic performance is very high elasticity. EVA can be used to manufacture high-magnification independent cell room temperature foaming materials. It has good elasticity, light density, excellent flex resistance, easy coloring, and has the advantages of high shock absorption, sound insulation, and heat insulation....

Claims

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Application Information

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IPC IPC(8): C08L51/02C08L23/28C08K5/09C08K5/098C08J9/10C08J9/08C08F251/00C08F220/14C08F220/18
CPCC08F251/00C08J9/08C08J9/103C08J2203/02C08J2203/04C08J2323/28C08J2351/02C08L23/286C08L51/02C08L2203/14C08K5/09C08K5/098C08F220/1804
Inventor 唐爱兰
Owner 唐爱兰