| 酚醛环氧丙烯酸酯光固化的动力学研究EI |
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| 引用本文： | 常志英,李妙贞.酚醛环氧丙烯酸酯光固化的动力学研究EI[J].高分子材料科学与工程,1991,7(1):33-48. |
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| 作者姓名： | 常志英 李妙贞 |
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| 作者单位： | 中国科学院感光化学研究所，中国科学院感光化学研究所，中国科学院感光化学研究所，北京联合大学化学工程学院，中国科学院感光化学研究所 北京 100012，北京 100012，北京 100012，88届毕业生，北京 100012 |
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| 摘 要： | 以酚醛环氧丙烯酸酯为预聚体,季戊四醇三丙烯酸酯为交联剂,采用自由基聚合型光固化体系,测定了树脂膜的双键转化率、硬度及凝胶转化率等,研究了不同光敏引发体系的引发活性及光固化过程的各种影响因素及反应规律。结果表明,本文采用的三种引发体系的引发活性为安息香双甲醚(DMPA)>二苯酮/三乙醇胺(BP/TEOA)>二苯基二硫化物(DPDS)。固化速度随预聚体的增多而加快,而涂层的交联程度则主要和预聚体与交联剂的配比有关。
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| 关 键 词： | 丙烯酸酯 酚醛环氧树脂 光固化 |
KINETIC STUDY ON THE PHOTOCURING OF PHENOLIC EPOXY ACRYLATE |
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| Chang Zhiying,Li Miaozhen,Nie Jun,Ma Delai and Wang Erjian.KINETIC STUDY ON THE PHOTOCURING OF PHENOLIC EPOXY ACRYLATE[J].Polymer Materials Science & Engineering,1991,7(1):33-48. |
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| Authors: | Chang Zhiying Li Miaozhen Nie Jun Ma Delai and Wang Erjian |
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| Abstract: | A radical photocurable system composed of phenolic epoxy acrylate as prepolymer. and pentaerythritoe triarylate as crosslinking agent was kinetic studied in this paper.The photo-curing processes were monitored by measuring the variation in double bond content by infra -red spectrometry, hardness of film and gelation extent by gravimetry. Three conventional photoinitiators were selected..2, 2-dimethoxy-2-phenylacetophenone (DMPA) , benzophenone/ triethanolamine (BP/TEOA) and diphenyldisulfide (DPDS) . The results obtained indicate that the rates of photocuring induced by different initiators are in the order DMPA>BP/ TEOA>DPDS. The conversion of double bond increases with in creasing prepolymer content, while the crosslinking degree is mainly dependent on the ratio of prepolymer to cross-linking agent. |
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| Keywords: | phenolic epoxy acrylate photocuring kinetic |
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