How to prevent transparent silicone products appear yellowing phenomenon

As for the question of why silicone rubber products appear yellowing, in fact, silicone yellowing is not its essence. Silicone rubber collagen materials are composed of tens of millions of molecular crystals, in which the ingredients of different components can be changed at will to change its composition, so even if hundreds of thousands of molecular chains are not subject to the combination reaction, there will be yellowing phenomenon. Only limited and external block, such as curing agent, raw materials, anti-yellow agent and so on!

Speaking of vulcanizing agent, many silicone rubber product manufacturers use ordinary vulcanizing agent, many products can be applied, but as high transparent or translucent products when the white color will often have yellow phenomenon, so many silicone manufacturers will choose anti-yellow vulcanizing agent and add anti-yellow agent, for high permeability semi-transparent products without discoloration phenomenon, Can ensure high temperature vulcanization production of secondary odor vulcanization without any color change, and long-term use of the product does not change color!

In addition, there are certain factors in the raw material, the general raw material of silica gel products is through the reinforcement of white carbon black as the main body, and the dosage of white carbon black is the material cost is lower, the performance has different adjustment changes, so in the improvement of other properties at the same time the anti-yellow effect is affected, so with the essence of the material changes and more changes, affecting the quality of itself!

On the other hand, the silicone protective cover in the use process without prepayment, ordinary precipitation method silicone rubber has yellow phenomenon, so transparent silicone products will have some yellow effect, it is recommended not to long-term exposure, contact liquid and other factors!