Composite vulcanization activator and rubber capable of not releasing nitrosoamine

A vulcanization activator and nitrosamine technology, which is applied in the field of rubber additives, can solve the problems of limited use of CLD, poor vulcanization effect, and long vulcanization time, and achieve the goal of improving physical and mechanical properties, vulcanization effect, and physical properties. Effect
CN109401075AActive Publication Date: 2019-03-01濮阳科茂威新材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
濮阳科茂威新材料有限公司
Publication Date
2019-03-01

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Abstract

The invention discloses a composite vulcanization activator and rubber capable of not releasing nitrosoamine, and belongs to the technical field of rubber auxiliaries. The composite vulcanization activator is prepared from the components in percentage by mass: 6.0%-10.0% of a rubber carrier, 70.0%-80.0% of urea resin, 7.0%-15.0% of processing oil and 0-5.0% of a processing agent which are mixed evenly and then are blended. The rubber is prepared from the following components: raw rubber, carbon black, a filling agent, a processing agent, processing oil, PEG 4000, zinc oxides, sulfur, a sulfurdonor, a thiuram accelerant, a vulcanizing accelerator MBTS and the composite vulcanization activator. The composite vulcanization activator can improve the vulcanization rate and vulcanization effectand also greatly reduces the dosage of CLD. The rubber prepared through the composite vulcanization activator is short in vulcanization time, good in scorching safety and capable of not releasing nitrosoamine.
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Description

technical field

[0001] The invention relates to the technical field of rubber additives, in particular to a composite vulcanization activator and rubber without nitrosamine release. Background technique

[0002] In the vulcanization molding process of rubber, in addition to adding vulcanizing agents, vulcanization accelerators, and anti-scorch agents, in order to increase the vulcanization speed, it is generally necessary to add vulcanization activators. Vulcanization activators can activate the vulcanization system and increase the crosslinking density of vulcanized rubber. , Improving the aging resistance of vulcanized rubber. During the high-temperature vulcanization process of rubber, some vulcanization accelerators and sulfur-carrying agents will produce secondary amines during the vulcanization process, and nitrogen oxides in the air or in additives will form stable nitrosamines under certain conditions, and nitrosamines Amines are difficult to remove by washing and s...

Claims

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