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Rubber anti-aging agent

An anti-aging agent and anti-aging agent technology, applied in the field of anti-aging agents for rubber, can solve the problems of toxicity and poor storage stability, and achieve the effects of reduced toxicity, good dispersibility, and reduced environmental pollution

Active Publication Date: 2014-10-08
JIANGSU ATE DONGTAI NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is toxic and has poor storage stability. It will change from white to gray black when exposed to air and sunlight.

Method used

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Examples

Experimental program
Comparison scheme
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 antiaging agent A with a mass ratio of 40% to a molten state, add the activated mixture, and mix well to obtain the No. 1 antiaging 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 20% to magnesium terephthalate under nitrogen atmosphere, mix well, and stay activated for 1 hour , heating antiaging agent BHT with a mass ratio of 60% to a molten state, adding the activated mixture, and fully mixing 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 10% silane coupling agent KH-580 and 10% silane coupling agent KH-550 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 30% to a molten state, add the activated mixture, and mix well to obtain the No. 3 anti-aging agent obtained in the present invention agent.

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Abstract

The invention discloses a rubber anti-aging agent which is particularly prepared through the following steps: drying terephthalic acid metal salt at the mass percent of 20%-50% at 100-120 DEG C for 0.5-1 hour; adding a silane coupling agent at the mass percent of 15%-35% to the terephthalic acid metal salt in a nitrogen environment, sufficiently and uniformly mixing, standing, and activating for 0.5-1 hour; heating an anti-aging agent A at the mass percent of 30%-60% into a melting state, adding an completely activated mixture, and sufficiently and uniformly mixing. Compared with the prior art, the rubber anti-aging agent disclosed by the invention has the advantages of toxicity reduction, low impurity content and low mobility; a preparation process of the rubber anti-aging agent is simple and low in price, the cost can be reduced and the product quality and the economic benefit can be improved.

Description

technical field [0001] The invention relates to an antiaging agent for rubber. Background technique [0002] The aging of rubber (including polymer materials such as plastics) mainly refers to the physical deterioration of rubber products due to the influence of heat, oxygen, light, mechanical stress, ozone, harmful metal ions and other external factors during storage or use. Or chemical changes, so that the properties of rubber deteriorate, and gradually lose the use value of the phenomenon. The aging of rubber is not only affected by its own molecular structure, but also mainly affected by its working environment, that is, external factors. These external factors can be divided into three types: physical factors, chemical factors and biological factors, and each type contains many different factors. [0003] Rubber materials are strategic materials and occupy an important position in the national defense industry. Almost all types of projects are inseparable from rubber ...

Claims

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Application Information

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IPC IPC(8): C08K9/06C08K5/098C08L7/00C08L9/02
Inventor 丁玉兰方春平
Owner JIANGSU ATE DONGTAI NEW MATERIALS TECH
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