| 摘要 |
An anti-foaming composition containing 5-30 parts of reactive silicone oil, 0.2-10 parts of silica, 0.3-20 parts of silicone glycol copolymer(I; x:y = 0:1 - 100 : 1, x+y = 10-100, z = 1-50, a:b = 0:1 - 1:0, R = -OH, -OR', R'= alkyl or aryl, EO = ethylene oxide, PO = propylene oxide), 0.5-20 parts of nonionic surfactant and 20-94 parts of nonionic surfactant (m.p.= 40-90 degree C) or wax was prepared.
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