Removal of excess silicone oil fromthe emulsification process lowered defoamer performance, suggesting that very small amounts of freesilicone oil have a role in the defoaming mechanism.

• 从乳化过程中去除过多的硅油会降低消泡剂的性能，这意味着，很少量的自由硅油就在消泡机理中起作用。