| 高固含量水性聚氨酯的合成及其成膜性能的研究 |
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| 引用本文： | 孙东成,张松,黎庆安. 高固含量水性聚氨酯的合成及其成膜性能的研究[J]. 中国胶粘剂, 2007, 16(8): 11-14 |
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| 作者姓名： | 孙东成 张松 黎庆安 |
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| 作者单位： | 华南理工大学化学科学学院,广东,广州,510640 |
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| 摘 要： | 采用预聚体分散法制备出50%以上固含量的水性聚氨酯,考察了软链段分子链长及硬链段含量对聚氨酯相分离行为、热性能及力学性能等的影响。研究表明:硬链段含量、软链段链长的提高和离子基团的增加均有利于拉伸强度的提高。
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| 关 键 词： | 水性聚氨酯 相分离 结晶度 |
| 文章编号： | 1004-2849（2007）08-0010-04 |
| 修稿时间： | 2007-06-052007-06-22 |
Synthesis of high solid content aqueous polyurethane and study on properties of filming |
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| SUN Dong-cheng,ZHANG Song,LI Qing-an. Synthesis of high solid content aqueous polyurethane and study on properties of filming[J]. China Adhesives, 2007, 16(8): 11-14 |
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| Authors: | SUN Dong-cheng ZHANG Song LI Qing-an |
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| Affiliation: | College of Chemical Science,South China University of Technology, Guangzhou 510640, China |
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| Abstract: | Aqueous polyurethanes(APU)which have a solid content of 50% at least were prepared by dispersing prepolymer.Its were studied that the effects of soft segment sequence length and hard segment content on APU's microphase separation,thermal and mechanical properties.The results showed that increase hard segment content,soft segment sequence length and ionic group to be favourable for rising tensile strength. |
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| Keywords: | aqueous polyurethane phase separation crystallization degree |
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