The definition of anti-foaming agent

Continuous vulcanization of rubber products under high temperature and pressure conditions, due to the moisture in the role with Ji, the finished product often produce bubbles, not to make rubber products such bubbles during curing, should be thoroughly dried before mixing with Ji except for using, , the need to add anti-foaming agent in the rubber compound, the main component of defoamers is fine particle size calcium oxide, calcium oxide mechanism is in mixing and curing process and cooperation Ji trace moisture in the compound, to produce hydrogen calcium oxide, therefore, to avoid high temperature vulcanized rubber bubble, named defoamers, also known as the desiccant. And it is mainly divided into three categories: mineral oil, silicone, polyether