Silicone products appear the phenomenon of oil, sometimes in some silicone ice, silicone garlic peeling device, daily use of raw materials is the carrier of more comprehensive products will appear oil phenomenon to make the product smooth feel very sticky, this is because raw materials into the mixture of silicone oil and white mineral oil resulting in conflict with white carbon black will appear oil phenomenon. This kind of product is generally in order to make the toughness of the product is better, the softness is stronger to add a chemical mixture.
Silicone oil cause
Reason one: it will not appear oil, silicone oil phenomenon is in the process of operation because of the addition of compound silicone oil, and white mineral oil petroleum chemical products, not silicone oil. Reason two: The addition of curing agent is too much, first of all, the product itself will not appear oil, silicone oil phenomenon is in the process of operation because of the addition of composite silicone oil, culter mine oil to extract petrochemical products, not silicone oil. There is also the reason that the curing agent is added too much, the silicone mold oil is relatively solid high temperature vulcanized silicone, liquid glue, with good fluidity, curing fast, more safe and environmental protection. Too much release agent in the mold will lead to oil on the surface of the product, and too much silicone oil in the raw material may also lead to oil. There are also some special materials in a special production environment may cause the combination reaction and so on! That is because the sealant contains silicone oil, as diluted silicone to use, is caused by the separation of silicone oil and base rubber, may be a product quality problem.
Reason three: the addition of internal release agent is too much, or the problem of rubber material, will also lead to silicone products out of oil. In order to solve the problem of silicone oil, the fundamental solution is to add less silicone oil in the production process of silicone products, it is best not to add silicone oil, if necessary, the amount of silicone oil added is not more than 5%~ 10% at most. Because the addition of too much silicone oil will destroy the molecular weight of silicone, so the silicone products will produce acid and alkali resistance,
The phenomenon of intolerance to aging.
