通过对氧化亚铜颗粒表面的有机改性改善了其在油性防污涂料中的应用性能。研究了改性剂的种类、用量、搅拌速度及反应时间对改性效果的影响,结果表明所用改性剂均提高了氧化亚铜的亲油性,改性效果是3-(甲基丙烯酰氧基)丙基三甲氧基硅烷(TMSM)>乙烯基三甲氧基硅烷(VTS)>聚乙烯醇(PVA);TMSM与氧化亚铜的质量比为1:50时产品疏水效果最好,其与水的接触角为132°;反应过程中搅拌越强烈,改性效果越好;搅拌时间一般控制在60min。以TMSM改性Cu2O为主防污剂的防污涂料,其抗沉降性和分散性能得到改善,涂料附着性能提高,抗冲击性能略下降。
The lipophilicity modification of Cu2O is studied, using organic agents as modifying agent to improve the compatibility and dispersion ability of Cu2O in oleoresin. It was found that the modifying effect is arranged as 3-(trimethoxysilyl) propyl methaciylate(TMSM), trimethoxy- vinylsilicone(VTS) , polyvinyl alcohol(PVA)in decreasing order. The best weight ratio of TMSM to Cu2O is 1:50. The modifying reaction time is about 60min and strong stir does good to the modification. The antifouling paints using lipophilicity modified Cu2O as main antifoulant have better subsidence-resistance and attachment ability.
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