高级检索

    胡光月, 张杰. 碳酸乙烯酯衍生物的合成、结构表征及其对聚氨酯热熔胶性能的影响[J]. 华东理工大学学报(自然科学版), 2015, (6): 765-772.
    引用本文: 胡光月, 张杰. 碳酸乙烯酯衍生物的合成、结构表征及其对聚氨酯热熔胶性能的影响[J]. 华东理工大学学报(自然科学版), 2015, (6): 765-772.
    HU Guang-yue, ZHANG Jie. Synthesis and Characterization of Ethylene Carbonate Derivatives and Their Effects on Properties of Polyurethane Hot-Melt Adhesives[J]. Journal of East China University of Science and Technology, 2015, (6): 765-772.
    Citation: HU Guang-yue, ZHANG Jie. Synthesis and Characterization of Ethylene Carbonate Derivatives and Their Effects on Properties of Polyurethane Hot-Melt Adhesives[J]. Journal of East China University of Science and Technology, 2015, (6): 765-772.

    碳酸乙烯酯衍生物的合成、结构表征及其对聚氨酯热熔胶性能的影响

    Synthesis and Characterization of Ethylene Carbonate Derivatives and Their Effects on Properties of Polyurethane Hot-Melt Adhesives

    • 摘要: 环状碳酸乙烯酯(EC)分别与乙二胺、己二胺开环反应合成1,2-乙二氨基甲酸羟乙酯(EDHU)与1,6-己二氨基甲酸羟乙酯(HDHU),用FT-IR、1H-NMR、13C-NMR等手段对其结构进行表征并作为扩链剂与二异氰酸酯(MDI)、聚酯多元醇反应制备聚氨酯热熔胶,对热熔胶的黏结性能、结晶性能、微相分离程度、表面张力及流变性能进行研究,结果表明:EDHU与HDHU作为扩链剂合成的聚氨酯热熔胶的微相分离程度分别为91.2%和83.9%,与传统的1,4-丁二醇(BDO)扩链剂合成的热熔胶相比,EDHU合成的热熔胶黏结强度提高了20%。

       

      Abstract: 1,2-Ethyl dihydroxyethyl urethane ester(EDHU)and 1,6-hexa dihydroxyethyl urethane ester(HDHU) were synthesized by the reaction of ethylene carbonate(EC) with ethylene diamine and hexamethylene diamine respectively. Structures of EDHU and HDHU were characterized by FT-IR,1H-NMR and13C-NMR. They were used as chain extenders to react with diisocyanate(MDI)and polyester diols to get the polyurethane hot-melt adhesives.The adhesive,crystal,micro-phase separation,surface force and rheological properties were studied. The results showed that the micro-phase separation achieved to 91.2% and 83.9%, respectively, with EDHU and HDHU as chain extenders. Compared with the traditional polyurethane hot-melt adhesive extended by 1,4-butylene diol(BDO), the adhesive strength increased by 20% when extended by EDHU.

       

    /

    返回文章
    返回