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Rubber antiager

A technology of rubber anti-aging agent and anti-aging agent, applied in the field of rubber anti-aging agent, can solve the problems of easy migration and volatilization of anti-aging agent BHT, reduction of anti-aging performance, environmental pollution, etc., to improve product quality and economic benefits, good anti-aging performance, cost reduction effect

Active Publication Date: 2014-10-01
江苏爱特恩高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The anti-aging agent BHT will gradually change from white to gray red when stored in the light for several weeks, and it will deteriorate, which is not good for use
In addition, the anti-aging agent BHT is easy to migrate and volatilize, resulting in a decrease in the anti-aging performance in the later stage, and it will be released into the environment and cause environmental pollution

Method used

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Examples

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Effect test

Embodiment 1

[0013] Under normal temperature conditions, dry 40% calcium terephthalate at 120°C for 0.5 h, add 20% silane coupling agent Si69 to calcium terephthalate under nitrogen atmosphere, and mix well Evenly, stay activated for 0.5h, heat the anti-aging agent BHT with a mass ratio of 40% to a molten state, add the activated mixture, and mix well to obtain the No. 1 anti-aging agent obtained in the present invention.

Embodiment 2

[0015] Dry magnesium terephthalate with a mass ratio of 20% at 100°C for 1 hour, and add silane coupling agent Si75 with a mass ratio of 30% to magnesium terephthalate under a nitrogen atmosphere, mix well, and stay activated for 1 hour , heating antiaging agent BHT with a mass ratio of 50% to a molten state, adding the activated mixture, and mixing thoroughly to obtain No. 2 antiaging agent of the present invention.

Embodiment 3

[0017] Dry zinc terephthalate with a mass ratio of 50% at 110°C for 1 hour, and add silane coupling agent KH-580 with a mass ratio of 15% and silane coupling agent KH-550 with a mass ratio of 15% to the In the zinc phthalate, mix well, stay and activate for 0.5h, heat the anti-aging agent BHT with a mass ratio of 20% to a molten state, add the activated mixture, and mix well to obtain the No. 3 anti-aging agent obtained in the present invention .

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Abstract

The invention discloses a rubber antiager, which is prepared in the following manner: drying a terephthalic acid metal salt with a mass ratio of 20-80% at 100-120 DEG C for 0.5-1 hour, adding a silane coupling agent with a mass ratio of 10-70% into the terephthalic acid metal salt under a nitrogen environment, mixing fully and uniformly, activating for 0.5-1 hour, heating an antiager BHT with a mass ratio of 20-80% to a fusion state, adding the activated mixture, and mixing fully and uniformly. Compared with the prior art, the rubber antiager prepared in the invention has excellent anti-aging performance, good stability, low transfer rate and good successive anti-aging performance. Moreover, the preparation process is simple and the price is relatively low, so that the cost can be reduced and the product quality and the economic benefit can be improved.

Description

technical field [0001] The invention relates to a rubber antioxidant. Background technique [0002] During the processing, storage and use of rubber, due to the comprehensive influence of internal and external factors, there will be aging phenomena such as softening, stickiness, hardening, cracking, brittleness, spots, mildew, loss of luster, color change, etc. Rubber anti-aging Antioxidant is a substance that prevents or delays the aging of rubber. [0003] Anti-aging agent BHT is an old-fashioned phenolic anti-aging agent that was produced and applied in 1937. Because it can effectively inhibit oxygen and copper damage, and it is non-polluting, less toxic, and widely used, its output has increased year by year, and it has become the most widely used anti-aging agent. The anti-aging agent BHT will gradually change from white to gray red when stored in the light for several weeks, and it will deteriorate, which is not good for use. In addition, the anti-aging agent BHT is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/02C08K13/06C08K9/06C08K5/098C08K5/13
Inventor 丁玉兰方春平
Owner 江苏爱特恩高分子材料有限公司
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