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化工学报  2015 

侧基含铵盐的新型阳离子UV固化阴极电泳涂料

DOI: 10.11949/j.issn.0438-1157.20150604, PP. 4696-4702

Keywords: 侧基叔胺二元醇,亲水性,UV固化阴极电泳涂料,乳液,粒度分布,合成

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Abstract:

将叔胺位于主链的N-甲基二乙醇胺(MDEA)和叔胺位于侧基的7,12-二氧-3,16-二氮-3,16-二乙基-5,14-十八二醇(DDDOD)分别作为亲水单体,与聚己内酯二元醇(PCL)、异佛尔酮二异氰酸酯(IPDI)等反应,制备聚氨酯分散体。通过聚氨酯的分散性、分散体平均粒径,比较了亲水基位于聚氨酯主链和侧基的两种单体的亲水性。结果表明,亲水基团位于侧基时,亲水效果比位于主链的好。将叔氨基位于侧基的单体DDDOD作为亲水单体,与PCL、IPDI反应,制备了聚氨酯,加入UV固化单体,分散得到UV固化的阴极电泳涂料。研究了涂料的乳液性能和UV固化后双键转化率和膜性能。

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