交联改性技术、复合改性技术及-NCO封闭改性技术是水性聚氨酯改性研究的重点,本文介绍了其基本原理、实施方法及影响因素,综述了改性研究中已取得的重要突破及研究进展.并提出不同改性技术存在的优势与不足.从结构设计等方面阐述了水性聚氨酯改性技术与材料物理性能、力学性能、耐水性、耐溶剂性及耐化学品性等性能之间的规律性特征.
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