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What are the reasons for the platinum catalyst for the production of silicone tube?
When chemical production uses the catalyst, the main function of the catalyst is to speed up the reaction rate.. Silicone tube production is no exception, the catalyst used in general is platinum catalyst.
So what is the advantage of the platinum catalyst for platinum catalyst is the production efficiency is higher than the use of Pu tube high or just the low sulfur temperature save?
Recently with the platinum catalyst to the silicone products, found the following conditions:
1 the cost is higher than the ordinary silicone tube formula 10 yuan /kg above.
2. The hardness of the platinum catalyst block (7mm) surface sticky (similar to a stranger), and hardness than ordinary silicon hose low 4-5 degrees.
3 the time of parking is short when the product is vulcanized, and it can easily bubble.
Odd margin silicone manufacturers to share: add molding platinum sulfide mainly used in food grade requirements of the products, two sulfur is easy to meet the FDA requirements, and the product transparency is high! General products do not need to use platinum sulfide, the cost is high! Not all customer requests are right! The main product is completely without taste, there will be no by-product, so it is completely in line with the requirements of FDA. Platinum catalyst silicone tube, the impression should be acted as the flame. Platinum cured after the transparency of products is much better, moreover the physical properties to high than double 24 vulcanized silicon rubber tube, non-toxic, no smell. Also platinum sulfide temperature can not be too high, we generally recommended 116 degrees 10 minutes vulcanized can be.
Platinum vulcanizing agent, tasteless, non yellowing, heating does not release the peroxide, the transparency of products, but has the disadvantage, mixed high requirement of the operation, operation time is short, easy to have a bubble is because the reaction principle is molding, if the excess crosslinking agent reaction process of hydrogen release.
This paper is from Shenzhen, odd Silicone Rubber Co., Ltd.: id=417? Http://www.szhcty.com/news_v.asp
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