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Antibacterial and antistatic EVA/starch/PE composite foaming material and preparation method thereof

A compound foaming and antistatic technology, applied in the field of polymer materials, can solve the problems of single function and non-antibacterial and antistatic materials, and achieve the effects of high tear strength, broad application prospects and market demand, and scientific and reasonable formula

Active Publication Date: 2014-04-30
福州市福通高新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing EVA foam material has a single function, and its physical and mechanical properties may meet the requirements in some use environments, but the material does not have antibacterial and antistatic effects, and cannot be fully used in some special environments

Method used

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  • Antibacterial and antistatic EVA/starch/PE composite foaming material and preparation method thereof
  • Antibacterial and antistatic EVA/starch/PE composite foaming material and preparation method thereof
  • Antibacterial and antistatic EVA/starch/PE composite foaming material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0018] Add the plasticized starch, EVA, PE, compatibilizer, elastomer, treated antibacterial agent, antistatic agent and other additives into the internal mixer, banbury at 90-130°C for 5-15min, and mix to obtain The plasticized composite material is kneaded at 60-90°C with an open mill, and mixed with a foaming agent and a crosslinking agent, and finally foamed at 160-190°C for 5-10 minutes with a flat vulcanizer. Obtain the antibacterial and antistatic EVA / starch / PE composite foaming material.

[0019] Table 1 Antibacterial and antistatic EVA / starch / PE composite foam material formula

[0020]

[0021] The compatibilizer is ethylene-acrylic acid copolymer and maleic anhydride grafted polypropylene, and the ratio of ethylene-acrylic acid copolymer and maleic anhydride grafted polypropylene is 4:1. The elastomer is ethylene-octene copolymer, the treated antistatic agent is treated carbon black, the treated antibacterial agent is surface-treated silver ion zeolite, and the s...

Embodiment 4-6

[0023] According to the composition of 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 an antibacterial and antistatic EVA / starch / PE composite foaming material.

[0024] Table 2 Antibacterial and antistatic EVA / starch / PE composite foam material formula

[0025]

[0026] The compatibilizer is ethylene-acrylic acid copolymer and maleic anhydride grafted polypropylene, and the ratio of ethylene-acrylic acid copolymer and maleic anhydride grafted polypropylene is 4:1. The elastomer is ethylene-octene copolymer, the treated antistatic agent is treated carbon black and carbon fiber, and the ratio of treated carbon black to carbon fiber is 10:1. The treated antibacterial agent is surface-treated nano-silver antibacterial powder, the surface treatment agent is aluminate coupling agent and titanate coupling agent, and the ratio of aluminate coupling agent and titanate coupling agent is 1...

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Abstract

The invention discloses an antibacterial and antistatic EVA (ethylene-vinyl acetate) / starch / PE (polyethylene) composite foaming material and a preparation method thereof. The antibacterial and antistatic EVA / starch / PE composite foaming material is prepared by: subjecting completely degradable starch and EVA, PE, a compatibilizer, as well as an elastomer to blending in a Banbury mixer, and adding functional additives, i.e. an antibacterial agent and an antistatic agent, and an inorganic filler, a cross-linking agent, a foaming agent and other aids. According to the invention, the antibacterial agent and the antistatic agent are blended into the foaming material, and the formula is scientific and reasonable, so that the product has both antibacterial and antistatic properties, and can satisfy life and some special environments.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to an antibacterial and antistatic EVA / starch / PE composite foaming material and a preparation method thereof. Background technique [0002] Ethylene-vinyl acetate copolymer (EVA), generally with a vinyl acetate (VA) content of 5-40%, due to the introduction of vinyl acetate segments in the molecular chain, reduces crystallinity, improves flexibility and impact resistance, and makes hair Foam materials have good properties such as compression rebound, deflection resistance, heat preservation, shock resistance, etc., so that they can be widely used in various industries. Since EVA is an alkane polymer, it is difficult to degrade in the natural environment, causing white pollution. Starch is a natural polymer with a wide range of sources. It is a renewable resource and is easy to decompose in the natural environment. Adding it to polyolefin materials can promote the degrad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L3/02C08L23/06C08L51/06C08K13/06C08K9/04C08K9/02C08K3/04C08K3/34C08K7/06
CPCC08J9/0061C08J9/103C08J2203/04C08J2323/08C08K2201/011C08K2201/017C08L23/0853C08L2201/04C08L2201/06C08L2205/035C08L3/02C08L23/0869C08L51/06C08L23/0815C08L23/06C08K13/06C08K9/04C08K9/02C08K3/04C08K3/34C08K7/06C08K2003/0806
Inventor 郑玉婴刘艺
Owner 福州市福通高新材料有限公司
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