| 硅烷改性聚氨酯的合成 |
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| 引用本文： | 修玉英,贾云龙,罗钟瑜.硅烷改性聚氨酯的合成[J].化工新型材料,2005,33(3):1-4. |
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| 作者姓名： | 修玉英 贾云龙 罗钟瑜 |
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| 作者单位： | 华南理工大学材料科学研究所,广州,510640 |
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| 摘 要： | 以氨基硅烷偶联剂为基础,对以异氰酸酯基为端基的聚氨酯预聚体进行再封端,合成了一系列不同硅烷封端率的单组分湿固化聚氨酯。测试结果表明:硅烷偶联剂成功接枝在聚氨酯预聚体上,产物的表干时间、粘接强度、耐湿热都得到很大改善,力学强度在一定封端率下保持较好,在聚氨酯密封胶、弹性体等领域有很好的应用前景。
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| 关 键 词： | 硅烷 聚氨酯 密封胶 弹性体 |
| 修稿时间： | 2004年11月19 |
Research on synthesis of silylated polyurethane |
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| Xiu Yuying,Jia Yunlong,Luo Zhongyu.Research on synthesis of silylated polyurethane[J].New Chemical Materials,2005,33(3):1-4. |
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| Authors: | Xiu Yuying Jia Yunlong Luo Zhongyu |
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| Abstract: | Silylated polyurethane(SPU) pr epolymer was prepared by using silane coupling agent to substitute isocyanate-e nding polyurethane prepolymer, and synthesized a series of monocomponent polyure thane polymer in different silane ending ratio. Testing showed that the curing t ime, adhesive strength, water resistance and heat resistance were all improved g reatly; the mechanical properties were excellent when the silane was added in a small quantity. The SPU resin could be applicated in the sealant or elastomer in dustry. |
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| Keywords: | silane polyurethane sealant elastomer |
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