| 水性聚氨酯的合成与改性 |
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| 引用本文： | 司小燕,郑水蓉,刘喜宗,陈欢庆.水性聚氨酯的合成与改性[J].中国胶粘剂,2007,16(10):6-9. |
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| 作者姓名： | 司小燕 郑水蓉 刘喜宗 陈欢庆 |
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| 作者单位： | 西北工业大学理学院应用化学系,陕西,西安,710072 |
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| 摘 要： | 以甲苯二异氰酸酯(TDI)、聚醚二元醇(N220)和二羟甲基丙酸(DMPA)为主要原料,采用三羟甲基丙烷(TMP)进行交联改性合成了水性聚氨酯(WPU),研究了n(-NCO)/n(-OH)、DMPA及TMP对WPU的耐水性、稳定性和力学性能的影响。研究发现,改性后的乳液常温贮存稳定性好,适度交联可提高胶膜的拉伸强度及耐水性。
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| 关 键 词： | 水性聚氨酯 交联 性能 |
| 文章编号： | 1004-2849（2007）10-0006-04 |
| 修稿时间： | 2007-07-02 |
Synthesis and modification of aqueous polyurethane |
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| SI Xiao-yan,ZHENG Shui-rong,LIU Xi-zhong,CHEN Huan-qing.Synthesis and modification of aqueous polyurethane[J].China Adhesives,2007,16(10):6-9. |
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| Authors: | SI Xiao-yan ZHENG Shui-rong LIU Xi-zhong CHEN Huan-qing |
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| Abstract: | The aqueous polyurethane(WPU)was synthesized as main material from toluene diisocyanate(TDI),a polyether polyol(N220) and dimethylolpropionic acid(DMPA),which was modified with trimethylolpropane(TMP)by crosslinking.And studied the effect of n(-NCO)/n(-OH),DMPA,TMP on water-resistance,stability and mechanical properties.The results showed that modified emulsion was steady at normal temperature,moderation crosslinking increased the tensile strength and water-resistance of film. |
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| Keywords: | aqueous polyurethane crosslinking properties |
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