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The role of "rubber mixing" stearic acid
Release time：
2022-06-13 09:58
Most natural rubber products practitioners know that in the production process of rubber products, especially rubber hoses, mixing is a very critical part, which is directly related to the quality of the products when they leave the factory. However, in mixing, The role of a rubber additive can not be ignored, it directly affects the plasticity and adhesion strength of the rubber compound, that is stearic acid.
The scientific name of stearic acid is octadecanoic acid. For the convenience of memory, people generally call it octadecanoic acid. In the production of natural rubber products such as rubber hoses, if there is a lack of stearic acid, the directly visible consequences are more obvious. For example, after adding sulfur for a long time, the Mooney will increase the adhesion strength after vulcanization due to more thermal history. Decrease, the plasticity of the mixed rubber is low, and the fluidity of the rubber is not good when it is scorched during extrusion or during molding.
It is unfortunate to think of the lack of additives at this time. Before that, what we have to do is actually very simple, that is, add 0.5-2% stearic acid and mix it evenly for one to two days before using it normally. The material will greatly improve the plasticity. Because stearic acid is not only an active agent, but also a softener.
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The role of "rubber mixing" stearic acid
Most natural rubber products practitioners know that in the production process of rubber products, especially rubber hoses, mixing is a very critical part, which is directly related to the quality of the products when they leave the factory. However, in mixing, The role of a rubber additive can not be ignored, it directly affects the plasticity and adhesion strength of the rubber compound, that is stearic acid.
Jiangxi Suker New Materials Co., Ltd.
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No. 998, Changbei Avenue, Linkong Economic Zone, Nanchang City, Jiangxi Province
