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Environment-friendly EVA/PE foam material not containing formamide and preparation method thereof

A technology of foam material and formamide, which is applied in the field of formamide-free environmentally friendly EVA/PE foam material and its preparation, can solve the problems of toxicity and formamide residue, and achieve the effect of simple production process, low density and good elasticity

Inactive Publication Date: 2016-04-13
FUJIAN SANSHENG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, after research and testing, it was found that formamide residues are common in EVA or PE foamed products
EVA or PE plastic itself is non-toxic and harmless, but the formamide produced by adding azodicarbonamide (AC) as a foaming agent to EVA or PE plastic foaming is toxic

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of environment-friendly EVA / PE foam material not containing formamide, by weight, its raw material composition is:

[0027] Resin: 30 parts;

[0028] Foaming agent: 5 parts;

[0029] Foaming aid: 10 parts;

[0030] Cross-linking agent: 1 part;

[0031] Filler: 30 parts;

[0032] The resin is a mixture of EVA and PE, the mass ratio of EVA to PE is 1:1, the foaming agent is 4,4'-oxobisbenzenesulfonyl hydrazide (OBSH), and the cross-linking The agent is BIBP.

[0033] Described foaming aid is zinc oxide or zinc stearate.

[0034] The filler is calcium carbonate.

[0035] The method for preparing a kind of formamide-free environment-friendly EVA / PE foam material as described above specifically comprises the following steps:

[0036] (1) Add the resin, foaming agent, foaming aid, cross-linking agent and filler into the internal mixer according to the proportion, mix and stir, and then mix the stirred material through the internal mixer for 10 minutes at 80°C; ...

Embodiment 2

[0040] A kind of environment-friendly EVA / PE foam material not containing formamide, by weight, its raw material composition is:

[0041] Resin: 60 parts;

[0042] Foaming agent: 10 parts;

[0043] Foaming aid: 15 parts;

[0044] Cross-linking agent: 5 parts;

[0045] Filler: 50 parts;

[0046] The resin is a mixture of EVA and PE, the mass ratio of EVA to PE is 1:2, the foaming agent is 4,4'-oxobisbenzenesulfonyl hydrazide (OBSH), and the cross-linking The agent is BIBP.

[0047] Described foaming aid is zinc oxide or zinc stearate.

[0048] The filler is calcium carbonate.

[0049] The method for preparing a kind of formamide-free environment-friendly EVA / PE foam material as described above specifically comprises the following steps:

[0050] (1) Add the resin, foaming agent, foaming aid, cross-linking agent and filler into the internal mixer according to the proportion, mix and stir, and then mix the stirred material through the internal mixer for 6 minutes at 100°C;...

Embodiment 3

[0054] A kind of environment-friendly EVA / PE foam material not containing formamide, by weight, its raw material composition is:

[0055] Resin: 45 parts;

[0056] Foaming agent: 8 parts;

[0057] Foaming aid: 12 parts;

[0058] Cross-linking agent: 3 parts;

[0059] Filling agent: 40 parts;

[0060] The resin is a mixture of EVA and PE, the mass ratio of EVA to PE is 1:3, the foaming agent is 4,4'-oxobisbenzenesulfonyl hydrazide (OBSH), and the cross-linking The agent is BIBP.

[0061] Described foaming aid is zinc oxide or zinc stearate.

[0062] The filler is calcium carbonate.

[0063] The method for preparing a kind of formamide-free environment-friendly EVA / PE foam material as described above specifically comprises the following steps:

[0064] (1) Add the resin, foaming agent, foaming aid, cross-linking agent and filler into the internal mixer according to the proportion, mix and stir, and then mix the stirred material through the internal mixer for 8 minutes at ...

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Abstract

The invention discloses an environment-friendly EVA / PE foam material not containing formamide and a preparation method thereof. The foam material is prepared from, by weight, 30-60 parts of resin, 5-10 parts of foaming agent, 10-15 parts of blowing promoter, 1-5 parts of coupling agent and 30-50 parts of filler. The raw materials are evenly mixed and subjected to banburying through a banbury mixer, milling, thinning and sheet discharge are conducted, EVA / PE sheets are obtained, and finally the environment-friendly EVA / PE foam material is prepared by conducting oil pressure plastification foaming on the EVA / PE sheets. The prepared EVA / PE foam material does not contain formamide, is safe and environmentally friendly, and can be widely used for manufacturing sports apparatuses, mattresses, child floors, lifesaving products, high-grade sneakers and the like. The preparation process is simple and convenient, and cost is low.

Description

Technical field [0001] The present invention is a chemical modification technology field, which involves a kind of environmentally friendly EVA / PE foam material and its preparation methods that do not contain metamamide environmentally friendly EVA / PE foam materials. Background technique [0002] EVA is a polymer of ethylene-acetate ethylene. It is made by ethylene and ethyl acetate. EVA has developed in the molecular chain. It has the characteristics of low density, good physicality, and good weather resistance. In recent years, it has developed in recent years.It is very fast, and is widely used in the manufacture of sports equipment, mattresses, children's flooring, life -saving products, high -end sports shoes, etc. [0003] PE is a polyethylene, which is concentrated by ethylene monomers. It is used to make agricultural, food and industrial packaging thin films, wire and cable covering and coating, and synthetic paper. [0004] However, the research test found that methalmam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08K3/22C08K5/098C08K3/26C08J9/10B29C44/00B29B7/74
CPCC08L23/06B29B7/7404B29C44/00C08J9/105C08J2203/04C08J2323/06C08J2323/08C08J2423/06C08J2423/08C08L23/0853C08L2203/14
Inventor 郑孙兴胡志飞李图文
Owner FUJIAN SANSHENG IND
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