利用γ-(2,3-环氧丙氧基)丙基三甲氧基硅烷(KH560)对重质碳酸钙表面进行接枝改性,并以改性后的重钙为填料制备了环氧涂层.采用傅里叶变换红外光谱(FT-IR)、扫描电子显微镜(SEM)、热重分析仪(TG)和粒径分析对改性重钙进行表征,使用电化学阻抗谱(EIS)、高温高压釜等设备测试涂层的附着力和耐腐蚀性等性能.结果表明:重钙表面化学键合了KH560有机官能团,提高了环氧涂层的相容性、耐腐蚀性和热稳定性.
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