用双环氧化合物(EP)和甲苯二异氰酸酯(TDI)在高温下合成聚恶唑烷酮(POXDN),考察了1227催化剂的作用和不同的E/I比值(EP和TDI的摩尔比)对合成物的影响.电位滴定和IR证明,E/I>1的合成物是端基为环氧基团内含OX环和IS环的POXDN.以合成的丁酮亚胺作为POXDN的潜伏性固化剂,制成单组分涂料.测试结果表明,该涂层的物理和机械性能、阻垢性能、水接触角、耐热性以及耐水煮性等性能均较好,尤其是憎水性和耐热性.适用于做水冷换热器涂层,将该种涂料涂装于石化厂在役水冷换热器上,2年的运行结果也证明了以上结论.
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