引用本文:
陈同蕙, 管云林, 季君晖, 郤国华, 高悦, 白耀文. 聚己撑碳酸酯二醇改性聚丙二醇醚型聚氨酯的研究[J]. 应用化学,
1996, 13(3): 12-15.
Citation: Chen Tonghui, Guan Yunlin, Ji Junhui, Que Guohua, Gao Yue, Bai Yaowen. Study on Polypropylene Glycol Polyurethane Modified by Polyhexylene Carbonate Diol[J]. Chinese Journal of Applied Chemistry, 1996, 13(3): 12-15.
Citation: Chen Tonghui, Guan Yunlin, Ji Junhui, Que Guohua, Gao Yue, Bai Yaowen. Study on Polypropylene Glycol Polyurethane Modified by Polyhexylene Carbonate Diol[J]. Chinese Journal of Applied Chemistry, 1996, 13(3): 12-15.
聚己撑碳酸酯二醇改性聚丙二醇醚型聚氨酯的研究
English
Study on Polypropylene Glycol Polyurethane Modified by Polyhexylene Carbonate Diol
Abstract:
The polypropylene glycol polyurethane modified by polyhexylene carbonate diol (HPPU)was synthesized from polyhexylene carbonate diol(PHCD),polypropylene glycol (PPG),4,4'-diphenylmethane diisocyanate(MDI)and 1,4-butylene diol(BDO)by one-step technique.Its IR speetra,mechanical properties,resistance to hydrolysis and rheological behavior were studied.The results show that both the tensile strength and tensile stress at 100% and 300% strain increase with increasing content of PHCD in soft segment.When PHCD content in soft segment is 51.29%,the tensile strength increases to 150% of that of the non-modified PU.After dipping in water at 40℃ for 42 days,the retention of tensile strength is no less than 84%.
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Key words:
- polyhexylene carbonate diol
- / polypropylene glycol
- / polyurethane
- / modification
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