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Microporous elastomer with high vibration reducing performance and preparation method thereof

A microporous elastomer and performance technology, applied in the field of microporous elastomer and its preparation, can solve problems such as unsatisfactory vibration damping performance, achieve dimensional stability, improve mechanical properties, and good vibration damping performance

Active Publication Date: 2016-10-12
林树枫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it has good softness, it still cannot meet the shock absorption performance required by people to wear

Method used

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  • Microporous elastomer with high vibration reducing performance and preparation method thereof
  • Microporous elastomer with high vibration reducing performance and preparation method thereof

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preparation example Construction

[0021] A kind of preparation method of the microporous elastomer with high damping performance of the present invention, comprises the following steps:

[0022] Step 1: After blending EPDM rubber, talcum powder, and calcium carbonate on an open mill, adding anti-aging agent, accelerator, zinc oxide, and stearic acid and mixing to obtain EPDM rubber compound;

[0023] Step 2: After blending the EPDM rubber compound prepared in Step 1 with ethylene-vinyl acetate copolymer on an open mill, add sulfur, peroxide, foaming agent, and pass through to obtain a blended rubber ;

[0024] Step 3: After the blended rubber prepared in Step 2 was parked for 24 hours, the curing time and foaming time were measured with a vulcanizer, and molded and foamed with a flat vulcanizer. Porous elastomer.

[0025] The prepared microcellular elastomer with high damping performance was subjected to the following performance tests.

[0026] (1) Tensile properties:

[0027] According to the GB / T528-200...

Embodiment 1

[0042] Mix 55 parts of EPDM rubber, 10 parts of 13 μm talc powder, and 5 parts of 18 μm calcium carbonate on an open mill for 20 minutes, add 2 parts of anti-aging agent 264, 3 parts of anti-aging agent RD, 5 parts of zinc oxide, and 3 parts of hard Fatty acid mixing to obtain EPDM rubber compound; blend it with 45 parts of ethylene-vinyl acetate copolymer on an open mill, add 0.5 parts of accelerator DM, 0.5 parts of accelerator CZ, and 3 parts of sulfur , 0.5 parts of dicumyl peroxide, 8 parts of azodicarbonamide, Botong, parked for 24 hours, measured the positive vulcanization time and foaming time with a vulcanizer, and then used a flat vulcanization machine to obtain a microcellular elastomer. The vulcanization temperature is 160°C. The preparation process is as figure 1 shown. The detailed properties of the microcellular elastomer are listed in Table 1.

Embodiment 2

[0044] Repeat the method of embodiment 1 by each component content of appointment, but adopt and contain 10 parts of 18 μ m talcum powders and 10 parts of 18 μ m calcium carbonates in formula.

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Abstract

The invention relates to a microporous elastomer with the high vibration reducing performance and a preparation method thereof. The microporous elastomer is mainly characterized by being prepared from, by mass, 55 parts of ethylene propylene diene monomer rubber, 45 parts of an ethylene-vinyl acetate copolymer, 10-15 parts of talcum powder, 5-10 parts of calcium carbonate, 2-5 parts of an anti-aging agent, 3-5 parts of zinc oxide, 1-3 parts of stearic acid, 0.5-1 part of an accelerant, 1-3 parts of sulphur, 0.5-1 part of peroxide and 3-8 parts of a foaming agent. The microporous elastomer prepared through the method has the advantages of being small in hardness, high in elasticity, good in vibration reducing performance, stable in size, excellent in mechanical property, good in softness and wearing comfortableness and the like and can be used for manufacturing shoe soles with the high requirements for the vibration reducing performance.

Description

technical field [0001] The invention belongs to a rubber polymer composite material and a preparation method thereof, in particular to a microporous elastic body with high damping performance and a preparation method thereof. Background technique [0002] Microporous elastomers have low density, high mechanical properties, anti-skid, vibration reduction and good wearing comfort, and are widely used as sports shoe sole materials. With people's pursuit of health, sports shoe soles with good shock absorption are increasingly sought after by the market. [0003] The inventor noticed that the microporous elastomer shoe materials currently on the market are mainly based on EVA, blended and foamed with various compounding agents such as certain rubber, fillers, vulcanizing agents and foaming agents. Although it has good softness, it still cannot satisfy the vibration damping performance required by people to wear. In order to improve the damping performance of microcellular elast...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L23/08C08K13/02C08K3/34C08K3/26C08K3/22C08J9/10
CPCC08J9/103C08J2203/04C08J2323/16C08J2423/08C08K2201/003C08L23/16C08L23/0853C08K13/02C08K3/34C08K2003/265C08K2003/2296
Inventor 林树枫
Owner 林树枫
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