Non-sulfur modified heat-resistant neoprene rubber

Abstract

The invention relates to the technical field of rubber product processing, in particular to a non-sulfur regulated heat-resistant chloroprene rubber. A kind of non-sulfur regulating heat-resistant chloroprene rubber, its prescription composition is as follows: non-sulfur regulating type chloroprene rubber 90-120 parts by weight, anti-aging agent Oetamine3-5 parts by weight, anti-aging agent Aranox0.5-2 parts by weight, magnesium oxide 3 ‑5 parts by weight, 2‑4 parts by weight of dodecyl mercaptan, 1‑2 parts by weight of stearic acid, 100‑110 parts by weight of light calcium carbonate, 13‑20 parts by weight of rapeseed oil, 8‑12 parts by weight of zinc oxide And accelerator NA-220.5-1.5 parts by weight. The formula of the non-sulfur-adjusted heat-resistant chloroprene rubber of the invention is obtained through multiple tests, and the prepared rubber has good heat-resistant performance. The styrene-butadiene rubber additive is properly proportioned to obtain rubber, which has good effect and durability, and can be widely used in tire covering rubber, with simple method and low cost.

Description

technical field [0001] The invention relates to the technical field of rubber product processing, in particular to a non-sulfur regulated heat-resistant chloroprene rubber. Background technique [0002] Natural rubber or synthetic rubber is vulcanized and cross-linked under high temperature and high pressure conditions under the action of sulfur vulcanization system, peroxide vulcanization system, resin vulcanization system or metal oxide vulcanization system. Under the condition of high temperature and high pressure, the above vulcanization system is prone to produce exudates and volatiles that pollute the human body and pharmaceuticals. Over the years, although people have made a lot of improvements in basic rubber raw materials, rubber formulations, production processes and post-processing, it is still difficult to prepare rubber products that meet the highest quality standards for pharmaceuticals. [0003] Among the various factors of rubber aging, oxidation is the most...

AI Technical Summary

Problems solved by technology

Under high temperature and high pressure conditions, the above vulcanization system is prone to produce exudates and volatiles that pollute the human body and pharmaceuticals

Over the years, although people have made a lot of improvements in basic rubber raw materials, rubber formulations, production processes and post-processing, it is still difficult to prepare rubber products that meet the highest quality standards for pharmaceuticals

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