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The Research on Thermal Aging Yellowing of Cationic Initiated UV Curing Coating
Pages: 61-64
Year: Issue:  9
Journal: Paint & Coatings Industry

Keyword:  阳离子光固化热老化抗氧剂黄变因数羟基;
Abstract: 通过在阳离子引发型紫外光固化涂料中添加不同类型以及不同比例的抗氧剂,监测其在热老化过程中的黄变现象,考察了抗氧剂对涂料热老化黄变的影响和其不同的抗黄变能力.利用紫外-可见光谱仪表征老化过程试样的透光率变化.结果表明:抗氧剂能较好地减小阳离子型紫外光固化涂料的热老化黄变,抗氧剂中的羟基的抗黄变能力存在差异,羟基及羟基数量决定了抗氧剂的抗黄变能力.
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