| 聚氨醋乳液及其与苯乙烯接枝聚合改性的机理 |
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| 引用本文： | 周震涛,谭晓亮,汪国杰,潘慧铭. 聚氨醋乳液及其与苯乙烯接枝聚合改性的机理[J]. 中国胶粘剂, 1998, 0(3) |
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| 作者姓名： | 周震涛 谭晓亮 汪国杰 潘慧铭 |
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| 作者单位： | 华南理工大学!广州，510641，华南理工大学!广州，510641，华南理工大学!广州，510641，华南理工大学!广州，510641 |
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| 摘 要： | 采用予聚物混合法合成了聚氨酯乳液，考察了合成条件包括予聚物分散温度、－NCO／－OH基团比例、亲水剂的选用等。另外，以苯乙烯作为提高耐水性的改性单体以BHPO－TEPA界面氧化还原体系为引发剂，通过原位聚合法制备了聚氨酯──苯乙烯接枝胶乳并对其进行了结构分析。接枝胶乳可同时提高粘接性能和耐水性能。
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| 关 键 词： | 聚氨酯乳液 苯乙烯接枝聚合 界面氧化还原反应 |
A Polyurethane Latex and the Mechanism of Its Modification by Graft Polymerizing of Styrene |
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| Zhou Zhentao, Tan Xiaoliang, Wang Guojie, Pan Huiming. A Polyurethane Latex and the Mechanism of Its Modification by Graft Polymerizing of Styrene[J]. China Adhesives, 1998, 0(3) |
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| Authors: | Zhou Zhentao Tan Xiaoliang Wang Guojie Pan Huiming |
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| Abstract: | This paper synthesised a polyurethane latex with the mixing of prepolymer,and investigated the synthetic conditions which include the temperature of dispersion,group ratio of -NCO to -0H,selecting of hydtophilic agent. Moreover,by the use of styrene as a modifier and BHPO-TEPA interfacial oxidationreduction system as an intiator this paper manufactured a polyurethane-styrene graft latex with in-situ polymerization and gave a structure analysis and ditermination of base properties for it,the results shows that the modified latex has a higher adhesi0n strength to textile(22. 3N/cm) and a lower water absorption (8. 2% for 24h)than the original latex(19. 8N/cm and 14. 5%,resp ) |
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| Keywords: | polyurethane emulsion styrene graft polymerization interfacial oxidation-reduction reaction |
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