Silicone oil is a good liquid adjuvant and plays an irreplaceable role in many aspects. It is also indispensable in the use of silicone rubber. The use of silicone rubber often encounters some problems, and research has found that many of them are related to silicone oil. Is the application of silicone oil to silicone rubber only beneficial but not harmful?

1、 Why do mold silica gel have fewer times of mold turnover? Answer: During the mold production process, too much silicone oil was added, which damaged the molecular weight of the silicone, resulting in the mold being used less frequently and not durable.

2、 Why does the mold silicone exhibit poor tension? Answer: During the process of making the mold, the customer added a large amount of silicone oil in order to reduce the viscosity of the silicone and make it easy to operate. This caused the silicone to become soft, not resistant to pulling, decreased tear strength, and decreased tensile strength.

3、 Why is the silicone mold experiencing oil leakage? Answer: The reason for the oil leakage in the silicone mold is due to the use of composite silicone oil during the production process, which contains white mineral oil.

4、 Why do silicone rubber molds exhibit resistance to acid, alkali, and aging? Answer: We do not recommend adding silicone oil during the mold making process. If added, it must not exceed 5%, as silicone oil will damage the molecular weight of the silicone.

5、 Why is the rubber head of transfer printing silicone not durable? Answer: It is closely related to the amount of silicone oil added to silicone rubber. The larger the amount of silicone oil added, the softer and less durable the rubber head.

Silicone oil can damage the molecular weight of silicone. Silicone rubber and silicone oil belong to the category of silicone resin, and their difference in structure depends on the proportion of silicon atoms and groups in the molecular structure. The ratio of groups to silicon atoms in silicone rubber is close to two to one, while the ratio of groups to silicon atoms in silicone oil is greater than two to one. From the above, it can be concluded that the higher the silicon atomic weight, the closer it is to a solid, while the lower the silicon atomic weight, the closer it is to a liquid (silicone oil does not condense). Many common problems are caused by the addition of silicone oil, which changes the overall ratio of groups and silicon atoms in silicone rubber, thereby reducing the hardness and frequency of use of silicone. So it is important to pay attention to the issue of "quantity" when using silicone oil. Another thing is to choose a manufacturer with strong capabilities.