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Starch composite foamed material and its production method

A technology of composite foaming and composite foaming agent, which is applied in the field of starch composite foaming material and its preparation, can solve the problems such as difficulty in molding and processing of starch, and achieve the effects of simple process, strong operability and environmental protection.

Active Publication Date: 2011-10-26
JINJIANG CHENGCHANG SHOES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Under light, starch can promote the chain scission of polyolefin polymers, but because the processing temperature of starch is higher than the decomposition temperature, it is difficult to form and process starch

Method used

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  • Starch composite foamed material and its production method
  • Starch composite foamed material and its production method
  • Starch composite foamed material and its production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~3

[0028] Take each raw material according to the raw material composition in Table 1, first add starch and plasticizer to a high-speed mixer and stir for 20 minutes at room temperature to obtain plasticized starch, and then add the plasticized starch and all other raw materials to the internal mixer, Mix at 100°C for 15 minutes to obtain pre-plasticized materials, then enter the open mixer, knead evenly at 80°C, and completely plasticize to obtain plasticized materials, and finally add extruder to granulate at 120°C to obtain The pellets are air-cooled to obtain the starch composite foaming material.

[0029]

[0030] Among them, the elastomer is POE, the inorganic powder is talcum powder and kaolin, the ratio of talc powder and kaolin is 10:1, the plasticizer is glycerin and absolute ethanol, and the ratio of glycerin and absolute ethanol is 2:1. The agent is dicumyl peroxide, the blowing agent is azodicarbonamide and sodium bicarbonate, the ratio of azodicarbonamide and sod...

Embodiment 4~6

[0032] According to the composition of the raw materials in Table 2, each raw material was taken, and the processing steps and process parameters were the same as in Example 1 to obtain a starch composite foaming material.

[0033]

[0034] Among them, the elastomer is POE, the inorganic powder is talcum powder and kaolin, the ratio of talc powder and kaolin is 10:1, the plasticizer is glycerin and absolute ethanol, and the ratio of glycerin and absolute ethanol is 2:1, cross-linking The agent is dicumyl peroxide, the blowing agent is azodicarbonamide and sodium bicarbonate, the ratio of azodicarbonamide and sodium bicarbonate is 3.5:1.5, the surface treatment agent is silane coupling agent, solubilizer For epoxy resins and vinyl acrylates. The ratio of epoxy resin to ethylene acrylate is 1:2, other additives are zinc oxide and zinc stearate, and the ratio of zinc oxide to zinc stearate is 2.5:1.

Embodiment 7~9

[0036] According to the composition of the raw materials in Table 3, each raw material was taken, and the processing steps and process parameters were the same as in Example 1 to obtain a starch composite foaming material.

[0037]

[0038] Among them, the elastomer is POE, the inorganic powder is talcum powder and kaolin, the ratio of talc powder and kaolin is 10:1, the plasticizer is glycerin and absolute ethanol, and the ratio of glycerin and absolute ethanol is 2:1, cross-linking The agent is dicumyl peroxide, the blowing agent is azodicarbonamide and sodium bicarbonate, the ratio of azodicarbonamide and sodium bicarbonate is 3.5:1.5, the surface treatment agent is silane coupling agent, solubilizer For epoxy resins and vinyl acrylates. The ratio of epoxy resin to ethylene acrylate is 1:2, other additives are zinc oxide and zinc stearate, and the ratio of zinc oxide to zinc stearate is 2.5:1.

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Abstract

The invention provides a starch composite foamed material and its production method, which comprises the following components by mass fraction: 1% to 50% of starch; 10% to 60% of EVA; 1% to 50% of elastomer; 0 to 5% of organic bentonite; 0 to 50% of inorganic powder; 0.1% to 15% of plasticizer; 0.5 to 2% of cross-linking agent, 2 to 11% of composite foamed agent, 0 to 3% of surface conditioning agent, 0 to 5% of compatibilizer and 0 to 5% of other auxiliary agents. The production process is also disclosed. The starch composite foamed material can be widely used for manufacturing beach shoes, slippers, sports shoes and the like, and can be used for producing children picture mosaic, foam floor, and also can be used for package materials of precision electronic instruments, electric appliances and medical apparatus. The production of material is beneficial to environmental protection, and shortage phenomenon of plastic raw material can be alleviated. The production method is scientific and reasonable, the process is simple and strong operationality, and substantially improves degradability of a traditional EVA foamed material, realizes functionalization of EVA foamed material and enhances the added value of the products, the starch composite foamed material has wide application market prospects, obvious social benefit and economic benefit.

Description

technical field [0001] The invention provides a starch composite foaming material and a preparation method thereof. Background technique [0002] At present, the plastics industry is facing two major challenges: First, the raw materials of traditional plastics generally come from petroleum, which is a non-renewable resource, so petroleum resources are increasingly scarce; second, traditional plastics are mostly organic synthetic polymers, which are difficult to produce in the natural environment. Degradation has caused serious white pollution. Therefore, the research and development of environmentally friendly materials has become a research hotspot for many researchers. The research and development of low-cost, environment-friendly green foam materials with natural biodegradable polymer materials such as starch has received widespread attention and attention worldwide. [0003] At present, the common foamed EVA sole materials on the market are generally produced with calc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08L23/08C08L53/02C08K13/02C08K3/34C08K5/14C08K3/22C08K5/098C08J9/10C08J9/08
Inventor 郑玉婴吴宝玲
Owner JINJIANG CHENGCHANG SHOES
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