| 不同官能度水性聚氨酯丙烯酸酯的合成及性能 |
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| 引用本文： | 杨帆,张涛,王潮霞,殷允杰.不同官能度水性聚氨酯丙烯酸酯的合成及性能[J].精细化工,2015,32(4):466-469,474. |
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| 作者姓名： | 杨帆 张涛 王潮霞 殷允杰 |
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| 作者单位： | 江南大学纺织服装学院生态纺织教育部重点实验室,江苏无锡,214122 |
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| 基金项目： | 国家自然科学基金（21174055） |
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| 摘 要： | 以丙烯酸羟乙酯与季戊四醇三丙烯酸酯作为封端剂,分别合成了二官能度水性聚氨酯丙烯酸酯(WPUA2)和六官能度的水性聚氨酯丙烯酸酯(WPUA6),并用红外光谱、粒径仪、热重分析对合成产物结构和性能进行表征。研究表明,相比于使用低官能度WPUA2紫外光固化所得聚氨酯丙烯酸酯(PUA)涂膜,加入单体或使用多官能度WPUA6,都可使PUA固化膜凝胶率提高20%以上,吸水率降低30%;质量损失10%,分解温度增大82℃。提高预聚物官能度可有效提高涂膜交联密度和耐热性能,并具有与加入活性单体相似的应用效果。
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| 关 键 词： | 聚氨酯丙烯酸酯 多官能度 UV 涂膜 粘合剂 |
| 收稿时间： | 2014/11/8 0:00:00 |
| 修稿时间： | 2015/1/16 0:00:00 |
Synthesis and Properties of Different Functionality Waterborne Polyurethane Acrylate |
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| YANG Fan,Zhang Tao,WANG Chao-xia and YIN Yun-jie.Synthesis and Properties of Different Functionality Waterborne Polyurethane Acrylate[J].Fine Chemicals,2015,32(4):466-469,474. |
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| Authors: | YANG Fan Zhang Tao WANG Chao-xia and YIN Yun-jie |
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| Affiliation: | Jiangnan University,Jiangnan University,Jiangnan University,Jiangnan University |
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| Abstract: | 2-Hydroxyethyl acrylate and pentaerythritol triacrylate were used to synthesis two functionality waterborne polyurethane acrylate (WPUA2) and six functionality waterborne polyurethane acrylate (WPUA6). The structure and properties of PUA were analyzed by means of FTIR, particle size analyzer and TG. The study found that, compared to use low functionality WPUA2 UV curing polyurethane acrylate (PUA) film, the PUA gel content of cured film improved more than 20%, the water absorption rate decreased 30% when adding monomer or using multifunctional WPUA6; While the quality loss 10%, the temperature increased 82 °C. Improved the prepolymer functionality can effectively improve the coating crosslinking density and heat resistance, and possess similar application effect with adding active monomer. |
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| Keywords: | polyurethane acrylate multifunction UV film |
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