丙烯酸松香(β-丙烯酰氧基乙基)酯的光固化动力学研究  

The UV Curing Kinetics of Acrylic Rosin(β-Acryloxyl Ethyl) Ester

作　　者：吴红[1] 王基夫[1,2] 储富祥[1,2] 王春鹏[1,2] 刘美虹[1,2] 林明涛[1,2] 

机构地区：[1]中国林业科学研究院林产化学工业研究所生物质化学利用国家工程实验室国家林业局林产化学工程重点开放性实验室江苏省生物质能源与材料重点实验室,江苏南京210042 [2]中国林业科学研究院林业新技术研究所,北京100091

出　　处：《林产化学与工业》2011年第5期76-80,共5页Chemistry and Industry of Forest Products

基　　金：林业公益性行业科研专项项目(200804011);江苏省自然科学基金资助项目(BK2009055)

摘　　要：以丙烯酸松香(β-丙烯酰氧基乙基)酯为主要原料制备紫外光固化涂料,通过全反射红外光谱分析(ATR FT-IR)研究了不同配方涂料紫外光照射后双键的转化率,用铅笔硬度、附着力等表征了固化过程中固化膜的力学性能。结果表明,随固化时间延长,固化膜的铅笔硬度由2H上升至3H至脱落,附着力由1级变化为2级至脱落,光引发剂浓度和紫外光强对固化初期碳碳双键转化率影响较大;当漆膜厚度由75μm变为25μm,采用薄的漆膜厚度或者Irgacure 1173光引发剂,都能加快反应速度;丙烯酸松香(β-丙烯酰氧基乙基)酯能在50 s内实现固化。The ultraviolet curing coatings based on the acrylic rosin（β-acryloxyl ethyl）ester were prepared by UV light curing process.Conversion of carbon-carbon double bond during the UV curing process was investigated by ATR FT-IR.Mechanical properties of the coatings with different curing level were measured by pencil hardness.The pencil hardness of the cured coating changed from 2H to 3H up to final falling off from the substract with curing time increasing;the adhesion force changed from 1 grade to 2 grade up to final falling off from the substrace with curing time increasing.It is concluded that the initial carbon-carbon double bond conversion was greatly affected by the dosage of initiator and the intensity of UV light;adopting thinner coating（from 75μm to 25μm） or using Irgacure 1173 as initiator would accelerate the rate of the curing reaction;acrylic rosin（β-acryloxyl ethyl）ester could be cured in 50 seconds.

关 键 词：丙烯酸松香衍生物 紫外光固化涂料 固化动力学 

分 类 号：TQ351.471[化学工程]