六亚甲基二异氰酸酯(HDI)缩二脲为脂肪族聚氨酯固化剂,因其无芳环结构,广泛用于具有良好耐候性和保光性的聚氨酯涂料.文章综述了国内外HDI缩二脲合成工艺与表征方法的研究进展,详细介绍了气相色谱、高效液相色谱、红外光谱、凝胶渗透色谱、质谱和核磁氢谱等6种测试方法在该领域的应用,并对各种方法的优缺点进行了比较,提出了一套表征HDI与活性氢物质反应产物组成和结构的测试方法,为高校研究和企业开发产品提供了参考.
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