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Haisheng Rubber takes you to understand the causes of whitening of rubber products

返回列表 Source: Cixi Haisheng Rubber Products Co., Ltd. Date2019-08-03 07:57 Browse: -

In life, many people must have seen that rubber products will turn white after a period of use. For example, under high humidity conditions, paints tend to turn white.

Oil injection is a liquid compounding agent such as softener, tackifier, lubricant, plasticizer, etc., which is separated on the rubber surface to form a layer of oil. In practice, the appearance of frost on the rubber surface is sometimes presented in one way, but sometimes it is presented in two or three ways together.

(1) Incorrect formula planning:

Full spray: common in sulfur, accelerators, active agents, antioxidants removal spray: common in processing aids, relocating antioxidants. Antistatic agent generation and ejection: Commonly used as accelerators in sulfur vulcanization systems and using reaction products to stay and stay: Commonly used in organic peroxide vulcanization systems. Low molecular weight excessive stress ejection: common in inorganic fillers such as calcium carbonate.

(2) Improper technical operation

(3) The quality of raw materials fluctuates due to different raw materials in the place of origin, different manufacturing methods, different technologies, and different batches.

(4) Poor storage temperature: The solubility of the compounding agent in rubber usually rises and falls as the temperature rises and falls.

(5) Rubber aging mostly causes the intact and balanced network structure of vulcanizate to damage, and then also damages the chemical or physical connection between various compounding agents and raw rubber molecules and compounding agents in the rubber system, reducing the coordination. The solubility of the agent in the rubber system. As a result, those parts of the compound that are overly full will be freely separated from the rubber, forming a frost.

Haisheng Rubber Products Co., Ltd., specialized in producing rubber products for decades, has a professional team of engineers. If you have any questions, welcome to the Haisheng Rubber official website for consultation


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