First, the appearance of oily products in silicone products
Some of the mobile phone cases we bought, silicone bracelets, daily necessities, raw materials, and more comprehensive products, there will be oil in the product, which makes the product smooth and sticky. This is because the raw material is infiltrated with a mixture of silicone oil and white mineral oil. As a result of conflict with silica, oil may appear. This product is generally a compound added to make the product more tough and softer.
Second, silicone products appear yellow
The phenomenon of yellowing is the essence of ordinary silicone products. Generally, the yellowing phenomenon occurs after the use of the environment for a long time, but the addition of anti-yellowing agent can achieve the phenomenon of non-yellowing or the use of food grade silica raw materials and gas phase method. Silicone raw material, high transparent high tensile high quality silicone material body will not appear yellow. So the product you buy belongs to ordinary silica gel and does not add anti-yellowing agent to cause the product to turn yellow.
Third, I feel that the tensile strength of silicone products is too bad.
Sometimes the silicone products purchased have poor pull strength, and the rebound force is small or even broken. This phenomenon can be found from the silicone product manufacturers. The reason can also be found from the raw materials. In the raw materials, the suppliers add too much. The amino-modified silicone oil is added with acid clay as a catalyst, so that the viscosity of the silica raw material is improved, and the tear resistance and the elongation of the raw materials of different hardnesses cause a decrease in the life of the product.
Why is the silicone product not resistant to highly corrosive chemicals?
What is the reason why silica gel can withstand high temperature of about 200 degrees but can not withstand high corrosion products? In fact, silicone oil is one of the main reasons. Silicone oil can be mixed with sulfurized to make catalysts with different compositions to reduce its viscosity, and it can also use alkaline substances. Increase the viscosity, so add as little silicone oil as possible to avoid conflicts with highly corrosive chemicals.
Silicone products will have various process problems in the production process, but the process problems can be solved from the silicone product manufacturers, and the problems in the raw materials have to find problems from the raw material suppliers when making raw materials.