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EVA (ethylene-vinyl acetate) wear-resistant nonflammable elastomer material and preparation method thereof

An elastomer material and flame-retardant technology, which is applied in the field of new wear-resistant and flame-retardant elastomer materials and its preparation, can solve the problems of flammability, poor wear resistance, and poor comfort, and achieves the advantages of less equipment investment and improved yield. Effect

Active Publication Date: 2016-12-21
联泓(江苏)新材料研究院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of flammability, poor wear resistance, high hardness and poor comfort in the prior art, and provide an EVA wear-resistant and flame-resistant elastomer material and its molded products

Method used

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  • EVA (ethylene-vinyl acetate) wear-resistant nonflammable elastomer material and preparation method thereof
  • EVA (ethylene-vinyl acetate) wear-resistant nonflammable elastomer material and preparation method thereof
  • EVA (ethylene-vinyl acetate) wear-resistant nonflammable elastomer material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Mix EVA UL00628, LDPE LD251, anti-wear agent, flame retardant, compatibilizer, toughening agent and antioxidant according to the proportion, then add it to the internal mixer at 170°C, 120 rpm, and melt blend for 30 minutes , the obtained EVA wear-resistant and flame-retardant elastomer material was molded into blocks and then cut into national standard splines to measure its performance. The test results are shown in Table 1.

Embodiment 2

[0029] Mix EVA UL00628, HDPE 5000S, anti-wear agent, flame retardant, compatibilizer, toughening agent and antioxidant according to the proportion, then add it to the internal mixer at 170°C, 120 rpm, and melt blend for 30 minutes , the obtained EVA wear-resistant and flame-retardant elastomer material was molded into blocks and then cut into national standard splines to measure its performance. The test results are shown in Table 1.

Embodiment 3

[0031] Mix EVA UL00628, PP PPH-T30, wear-resisting agent, flame retardant, toughening agent and antioxidant according to the proportion, then add it to the internal mixer at 170°C, 120 rpm, and melt blend for 30 minutes to obtain The EVA wear-resistant and flame-resistant elastomer material was molded into blocks and then cut into national standard splines to measure its performance. The test results are shown in Table 1.

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Abstract

The invention relates to an EVA (ethylene-vinyl acetate) wear-resistant nonflammable elastomer material which is composed of 28.6-51.6 wt% of ethylene-vinyl acetate copolymer, 0-15 wt% of polyethylene or 0-15 wt% of polypropylene, 25-35 wt% of anti-wear agent, 10-20 wt% of flame retardant and 2.4-4.8 wt% of other modifying aids. The other modifying aids are two or more of an antioxidant, a compatibilizer and a toughener. The preparation method comprises the following steps: uniformly mixing the ethylene-vinyl acetate copolymer, polypropylene or polyethylene, anti-wear agent, flame retardant and modifying aids through a high-speed mixer, and carrying out melt blending through a Banbury mixer or double screw extruder to prepare the wear-resistant nonflammable elastomer material and formed products thereof. The EVA wear-resistant nonflammable elastomer material has favorable hand feeling and comfort degree, and has higher commercial value in the fields of floor, wall surfaces, automobile interior decorations and the like. The defective goods can be recovered to enhance the yield in the material forming process. Compared with the like materials prepared from rubber or PVC, the EVA wear-resistant nonflammable elastomer material has the advantages of simpler and more convenient preparation technique and lower equipment investment.

Description

technical field [0001] The invention belongs to the technical field of production of thermoplastic elastomer materials, and in particular relates to a novel wear-resistant and flame-resistant elastomer material and a preparation method thereof. Background technique [0002] The thermoplastic elastomer based on EVA material not only has the high elasticity of rubber, but also has the characteristics of injection molding processing. At the same time, the addition of wear-resistant agents, flame retardants and other processing aids makes the material have high wear resistance. And better flame retardancy, so that the material has greater advantages in application. [0003] Ethylene-vinyl acetate copolymer (EVA) is formed by bulk polymerization of ethylene and vinyl acetate at a certain temperature and high pressure. It is a polymer composed of polymerized molecules with different chain lengths and chain structures. The main performance of ethylene-vinyl acetate copolymer (EVA)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08L23/12C08L23/14C08L53/02C08K13/02C08K3/32C08K5/3492
CPCC08L23/0853C08L2201/02C08L2205/025C08L2205/03C08L2205/035C08L2207/04C08L2207/062C08L2207/066C08L23/06C08L23/0884C08K13/02C08K3/32C08L23/12C08L23/14C08K2003/323C08K5/34928C08L53/025
Inventor 韦景然张文军吴集钱李方
Owner 联泓(江苏)新材料研究院有限公司
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