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A kind of antistatic eva material and preparation method thereof

An anti-static and conductive carbon black technology, applied in the field of anti-static EVA (ethylene-vinyl acetate copolymer materials), can solve the problems of high cost, non-permanent anti-static, short service life, etc., achieve high stability and not easy to age , long service life effect

Active Publication Date: 2016-02-03
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] Example 1: The raw material of following parts by weight is carried out banburying:

[0032] EVA26%VA60 copies

[0033] EPDM572510 copies

[0034] 5 parts talcum powder

[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 conductive carbon black N9905 parts to continue banburying, keep the temperature at 110°C during banburying, under the air pressure of 0.7kg, banburying for 10 minutes; at the temperature of 80°C, open the mixture 15mm once, 1mm once; Finally, granulation is carried out, 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. Check after 6 hours of storage.

Embodiment 2

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

[0042] EVA26%VA70 parts

[0043] EPDM572520 copies

[0044] 15 parts talcum powder

[0045] 5 parts white oil

[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 and continue banburying. During banburying, the temperature is kept at 110°C and the air pressure is 0.8kg, and banburying is carried out for 10 minutes; the obtained mixture is smelted once at 15mm and 1mm at a temperature of 90°C; Finally, the granulation is carried out, 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. Check after 6 hours of storage.

Embodiment 3

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

[0052] EVA26%VA65 copies

[0053] EPDM572515 copies

[0054] 10 parts talcum powder

[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 and continue banburying. During banburying, the temperature is kept at 110°C and the air pressure is 0.8kg, and banburying is carried out for 10 minutes; the obtained mixture is smelted once at 15mm and 1mm at a temperature of 90°C; Finally, the granulation is carried out, 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. Check after 6 hours of storage.

[0061] The perf...

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PUM

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Abstract

The invention discloses an antistatic EVA material and a preparation method thereof. The antistatic EVA material comprises the following components: 60-70 parts of EVA; 10-20 parts of EPDM; 5-15 parts of conductive carbon black; 5-15 parts of talcum powder; 1-5 parts of oil; 1-5 parts of foaming agent; 0.2-0.6 parts of coupling agent; 0.5-1.5 parts of zinc oxide powder; 0.5-1.5 parts of stearic acid; in parts by weight. Its production method includes the steps of banburying, open refining, granulation and foaming. The invention is made of EVA as the base material, which can be permanently anti-static, not affected by humid environment, and can also maintain very high stability under low temperature and high temperature environment, and is not prone to aging.

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 Patents(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