第50卷第10期 2012年10月
上海涂料
SHANGHAI COATINGS
Vol. 50 No. 10 Oet.2012
一种具有高效防雾功能涂料的研制李焕王木立朱东（中海油常州涂料化工研究院，江苏常州213016）
摘要：以甲基丙烯酰乙氧基三甲基氟化铵作为功能性单体，与丙烯酸酯类单体共聚合成了防雾树脂，并以该防雾树脂作为成膜物，加入固化剂，配制成具有优异防雾性和耐水性的防雾涂料。分别研究了引发剂用量对树脂黏度和相对分子质量的影响，功能性单体用量和羟基含量与涂料性能之间的关系，以及施工条件对涂层性能的影响。
关键词：功能性单体；防雾树脂；防雾涂料
中图分类号：TQ630.7
0引言
文献标识码：A
结雾是人们生活和工作中经常遇到的问题，其最简单、有效的解决方法是采用防雾涂料。防雾涂料的防雾原理及方法有两种：第一种方法为（超）亲水防雾，即降低材料表面对水的接触角，使水滴薄膜化。亲水材料中含有高表面能的强亲水极性基团，能[收稿日期】2012-08-20
【基金项目】江苏省自然科学基金（项目编号：BK2011262）。
文章编号：1009-1696（2012)10-0008-04
形成氢键或离子键。第二种方法为（超）疏水防雾即提高材料表面对水的接触角，使水滴滑落。疏水材料中含有大量低表面能的硅、氟等原子基团，能极大地降低材料的表面能，使其对水的接触角大于120°，使水滴更易滑落，以达到防雾效果。
为了满足材料的实际应用要求，防雾涂料应具有以下儿方面的性能：（1）高效、持久的防雾效果：
【作者简介]李焕，男，主要从事特种功能性树脂的合成和应用研究。
PreparationandPerformanceResearchofTwo-ComponentWaterbornePolyurethane AutomobileTopcoat
Chen Zhonghua1.2, Fan Xiaolit
(1.Collegeof MaterialsScienceandEngineeringSouthChinaUniversityofTechnology,GuangdongGuangzhou 510640,China:2.GuangZhouJointasChemicalCo.Ltd.,GuangdongGuangzhou,510520,China）
Abstract: The preparation process of two-component polyurethane coatings was introduced, and through a series of contrast experiments, the influences of resin, curing agent, n-nco/ n-oH, PVC and additives on the film performance, and the pot life of the coatings were inspected. Results showed that it would lead to get excellent comprehensive performance film, when hydroxyl acrylic resin of Bayhydrol A XP 2695 and curing agent of Bayhydur XP 2655 were collocated, n-nco/ n-on was 1.4, PVC was 15%, TG270 and TG755 were used together as wettingdispersing agents, and TG700 matched with BYK380N was selected as flatting agent, which could meet the requirements of automobile topcoat. And the pot life was approximately 4 hours.
Key Words: two-component waterborne polyurethane coatings; automobile topcoat; performance research