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林产化学与工业 ›› 2011, Vol. 31 ›› Issue (5): 76-80.

• 研究报告 • 上一篇    下一篇

丙烯酸松香(β-丙烯酰氧基乙基)酯的光固化动力学研究

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   

  1. 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
  • 收稿日期:2010-03-22 修回日期:2011-08-13 出版日期:2011-10-30 发布日期:2011-10-30
  • 通讯作者: 储富祥,研究员,从事乳液聚合及生物质材料研究;E-mail:chufuxiang@caf.ac.cn。

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

WU Hong1, WANG Ji-fu1,2, CHU Fu-xiang1,2, WANG Chun-peng1,2, LIU Mei-hong1,2, LIN Ming-tao1,2   

  1. 1. Institute of Chemical Industry of Forestry Products,CAF;National Engineeering Lab.for Biomass Chemical Ulitization; Key and Open Lab.on Forest Chemical Engineering,SFA; Key Lab.of Biomass Engery and Material,Jiangsu Province, Nanjing 210042, China;2. Institute of New Technology of Forestry,CAF, Beijing 100091, China
  • Received:2010-03-22 Revised:2011-08-13 Online:2011-10-30 Published:2011-10-30

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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 75 μm 变为 25 μm,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。

关键词: 丙烯酸松香衍生物, 紫外光固化涂料, 固化动力学

Abstract: 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 75 μm to 25 μm) 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.

Key words: acrylic rosin, ultraviolet curing coatings, curing kinetics

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