| 光固化环氧丙烯酸酯体系的增韧研究 |
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| 引用本文： | 杨传景,姜宏伟.光固化环氧丙烯酸酯体系的增韧研究[J].应用化工,2011,40(4). |
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| 作者姓名： | 杨传景 姜宏伟 |
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| 作者单位： | 华南理工大学,材料科学与工程学院,广东,广州,510640 |
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| 摘 要： | 在癸二酸增韧环氧丙烯酸酯(GEA)的基础上,研究了通过加入聚氨酯丙烯酸酯(PUA),改善环氧丙烯酸酯紫外光固化材料的柔韧性,同时避免强度的较大损失。结果显示,对于癸二酸改性的环氧丙烯酸酯(癸二酸与环氧树脂的摩尔比为0.3),当GEA∶PUA∶稀释剂:光引发剂(质量比)为61.6∶15.4∶20∶3时,PUA共混改性的GEA光固化体系具有良好的综合性能,此时拉伸强度为8.84 MPa,断裂伸长率为109%,柔韧性为1 mm。
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| 关 键 词： | 改性环氧丙烯酸酯 聚氨酯丙烯酸酯 增韧 紫外光固化 |
Study on toughening of UV-curable epoxy acrylate system |
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| YANG Chuan-jing,JIANG Hong-wei.Study on toughening of UV-curable epoxy acrylate system[J].Applied chemical industry,2011,40(4). |
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| Authors: | YANG Chuan-jing JIANG Hong-wei |
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| Affiliation: | YANG Chuan-jing,JIANG Hong-wei(College of Materials Science and Engineering,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | A kind of flexible epoxy acrylate(GEA) was prepared by modification of epoxy acrylate with sebacic acid and following a blending with polyurethane acrylate.The flexility of epoxy acrylate can be improved effectively and avoided obvious decrease on strength.The results showed that for the modified epoxy acrylate in which 30% epoxy group was reacted with sebacic acid,when the mass ratio of GEA to PUA to diluent to photo-initiator was 61.6∶15.4∶20∶3,the PUA mixed GEA UV-curing system reached the good comprehensive properties:tension strength was 8.84 MPa,elongation at break was 109%,flexibility was 1 mm. |
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| Keywords: | epoxy acrylate polyurethane acrylate toughening UV-curing |
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