Antifoaming agent for plastics

The invention discloses an antifoaming agent for plastics. The antifoaming agent is prepared from the following substances: modified calcium oxide, low density polyethylene, butadiene-acrylonitrile rubber, ethylene bis stearamide, magnesium stearate, ethyl acrylate and an aluminate coupling agent. According to the synergistic effect of the various components, the antifoaming agent prepared by theinvention can effectively reduce bubbles, holes and other poor structures in the plastics and well improve the mechanical use properties of the plastics, is high in overall quality and has excellent popularization value and market competitiveness. 本发明公开了种塑料用消泡剂，由下列物质制成：改性氧化钙、低密度聚乙烯、丁腈橡胶、乙撑双硬脂酰胺、硬脂酸镁、丙烯酸乙酯、铝酸酯偶联剂。在各成分的共同配合作用下，本发明制得的消泡剂能有效的降低塑料中气泡、孔穴等不良结构的存在，同时又能很好的提升塑料的力学使用特性，综合品质好，具有很强的推广价值和市场竞争力。