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Ev> Blog> How much do you know the vulcanizing agent in silicone producting industrial?

How much do you know the vulcanizing agent in silicone producting industrial?

September 28, 2020
In the molding process of solid silicone rubber products, many people do not know how the raw materials are cured at high temperature to achieve the effect. Raw materials, temperature and mixing are several essential processes, and there is also an auxiliary agent. One of the main auxiliary materials is the vulcanizing crosslinking agent. If you just put the raw materials into the mold for high-temperature curing, the product will not achieve the curing effect. Have you understood the role of vulcanizing agent?

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The vulcanizing agent can be used in different types of rubber. At present, rubber vulcanization is the same as silicone vulcanization. Its main function is to put the curing agent and the raw material into the raw material to completely mix the curing agent and the raw material to achieve the curing effect. It is cured and molded under the strong pressure of the machine, so that the silicone molecules are cured at high temperature and heat into high-density compatible products. This process was first applied to natural rubber materials and is currently emerging in the silicone product manufacturing industry.

At the end of the 1980s, hydraulic solid raw materials were molded. This type of raw materials began to emerge. It mainly includes the curing and cross-linking molding of natural rubber products. With the continuous development and upgrading of rubber materials, it has been applied to a variety of rubber materials. It is the same in the silicone product industry. If no curing agent is added, the product cannot be molded under high temperature conditions, and the material will be completely scalded to become an unfamiliar rubber compound.

It has many advantages and disadvantages. At present, the color of the vulcanizing agent is transparent. At present, it can still reach the environmental protection and safety level. The main defect of compatibility with silicone is that the curing agent manufactured by some companies has an odor or causes the yellowing of silicone products. The stability of the catalytic effect is the key to it. Many silica gel processing plants also have various undesirable products due to the curing agent, so the stability of the curing agent is very important.
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At present, the curing agent also has a low-temperature platinum curing agent. Platinum curing agent is a two-component addition type curing agent. It has the characteristics of low curing temperature and fast curing speed. Compared with the traditional peroxide curing system, it is environmentally friendly, efficient and odorless. Advantage. Use platinum to add vulcanization, and do not use silica gel containing hydrogen-containing silicone oil, otherwise it is easy to die out during rubber mixing and easy to produce bubbles during molding.
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