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Anti-static EVA material and preparation method thereof

An anti-static, EVA26%VA65 technology, applied in the field of anti-static materials, can solve the problems of high cost, short service life, and inability to permanently anti-static, and achieve high stability, long service life, and not easy to age.

Active Publication Date: 2014-07-09
南京际华五三零二服饰装具有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Some of the existing anti-static materials cannot be permanently anti-static, and some materials are easy to age, and the cost of use is very high
Such as a kind of antistatic sole disclosed by the announcement number CN202051031U, the sole is made of polyethylene foam molding material and conductive carbon black is added to achieve permanent antistatic effect, but the material characteristics of polyethylene itself determine that the service life of this antistatic material is short. High cost and inconvenient to replace

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: the raw material of following parts by weight is carried out banburying:

[0032] EVA 26%VA 60 parts

[0033] EPDM 5725 10 copies

[0034] Talc powder 5 parts

[0035] 1 part white oil

[0036] Foaming agent 1 part

[0037] 0.2 parts of coupling agent

[0038] Zinc oxide powder 0.5 parts

[0039] 0.5 parts of stearic acid

[0040] Then add 5 parts of conductive carbon black N990 to continue banburying. During banburying, keep the temperature at 110°C and air pressure of 0.7kg, and banbury for 10 minutes; at a temperature of 80°C, open the mixture to 15mm once, 1mm once; After smelting, granulate, the granulation temperature is 80°C, and the cooling water must be kept smooth; finally, the obtained granules are sent to the foaming machine for foaming, and the temperature of the foaming machine is controlled at 165°C for 10 minutes and the pressure is 170kg. After the material is parked for 6 hours, it will be tested.

Embodiment 2

[0041] Embodiment 2: the raw material of following parts by weight is carried out banburying:

[0042] EVA 26%VA 70 parts

[0043] EPDM 5725 20 copies

[0044] Talcum powder 15 parts

[0045] White oil 5 parts

[0046] Foaming agent 5 parts

[0047] 0.6 parts of coupling agent

[0048] Zinc oxide powder 1.5 parts

[0049] 1.5 parts of stearic acid

[0050] Then add 15 parts of conductive carbon black N990 to continue banburying. During the banburying, the temperature was kept at 110°C, and the air pressure was 0.8kg, and banburying was carried out for 10 minutes; After smelting, granulate, the granulation temperature is 85°C, and the cooling water must be kept smooth; finally, the obtained granules are sent to the foaming machine for foaming, and the temperature of the foaming machine is controlled at 165°C for 10 minutes and the pressure is 170kg. After the material is parked for 6 hours, it will be tested.

Embodiment 3

[0051] Embodiment 3: the raw material of following parts by weight is carried out banburying:

[0052] EVA 26%VA 65 parts

[0053] EPDM 5725 15 copies

[0054] Talc powder 10 parts

[0055] 3 parts white oil

[0056] Foaming agent 3 parts

[0057] 0.4 parts of coupling agent

[0058] Zinc oxide powder 1 part

[0059] 1 part stearic acid

[0060] Then add 10 parts of conductive carbon black N990 to continue banburying. During the banburying, the temperature is kept at 110°C and the air pressure is 0.8kg, and banburying is carried out for 10 minutes; After smelting, granulate, the granulation temperature is 85°C, and the cooling water must be kept smooth; finally, the obtained granules are sent to the foaming machine for foaming, and the temperature of the foaming machine is controlled at 165°C for 10 minutes and the pressure is 170kg. After the material is parked for 6 hours, it will be tested.

[0061] The performance of the conductive shoe sole material of the present...

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Abstract

The invention discloses an anti-static EVA (Ethylene Vinyl Acetate) material and a preparation method thereof. The anti-static EVA material comprises the following components in parts by weight: 60-70 parts of EVA, 10-20 parts of EPDM (Ethylene-Propylene-Diene Monomer), 5-15 parts of conductive carbon black, 5-15 parts of talcum powder, 1-5 parts of white oil, 1-5 parts of foaming agent, 0.2-0.6 part of coupling agent, 0.5-1.5 parts of zinc oxide powder and 0.5-1.5 parts of stearic acid. The preparation method comprises the steps of internal mixing, open mixing, granulating, foaming and the like. The anti-static EVA material is prepared by using the EVA as a substrate, and is capable of permanently shielding electrostatics and cannot be affected by a damp environment; the anti-static EVA material also is capable of keeping extremely high stability in low-temperature and high-temperature environments, and hardly ages.

Description

technical field [0001] The invention relates to the technical field of antistatic materials, in particular to the technical field of antistatic EVA (ethylene-vinyl acetate copolymer material). Background technique [0002] In some special occasions, the requirements for anti-static are very high. For example, many aspects of gas stations need to use anti-static materials. The precision electronic parts in some electronic products are also very afraid of static electricity, and they also need to be made or protected with anti-static materials. [0003] Some of the existing anti-static materials cannot be permanently anti-static, and some materials themselves are easy to age, and the cost of use is very high. Such as a kind of antistatic sole disclosed in the announcement number CN202051031U, the sole is made of polyethylene foam molding material and conductive carbon black is added to achieve permanent antistatic effect, but the material characteristics of polyethylene itsel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/16C08K13/02C08K3/04C08K3/34C08K5/01C08K3/22C08K5/09C08J9/04
CPCC08J9/04C08J2323/08C08J2423/16C08K2201/001C08L23/0853C08L2201/04C08L2203/14C08L23/16C08K13/02C08K3/04C08K3/34C08K2003/2296C08K5/09
Inventor 葛胜超
Owner 南京际华五三零二服饰装具有限责任公司
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