高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (11): 1807.

• 论文 • 上一篇    下一篇

乙醇在环氧树脂/氨酯丙烯酸酯树脂互穿网络中的扩散研究(Ⅰ)——吸收动力学曲线的测定及均相传递模型

华峰君1, 李军2, 胡春圃1, 刘洪来2, 胡英2   

  1. 1. 华东理工大学材料科学与工程研究所, 上海, 200237;
    2. 华东理工大学材料科学与工程研究所, 华东理工大学化学系, 上海, 200237
  • 收稿日期:1997-10-24 出版日期:1998-11-24 发布日期:1998-11-24
  • 通讯作者: 华峰君,男,28岁,博士研究生.
  • 作者简介:华峰君,男,28岁,博士研究生.
  • 基金资助:

    国家自然科学基金(批准号:59673019,29506044)资助课题.

Diffusion Behavior of Ethanol in Epoxy/Urethane Acrylate Resin Interpenetrating Polymer Networks(Ⅰ)——Homogeneous Transport Model and Correlation with Experimental Sorption Curves

HUA Feng-Jun1, LI Jun2, HU Chun-Pu1, LIU Hong-Lai2, HU Ying2   

  1. 1. Institute of Material Science and Engineering, Department of Chemistry, Shanghai, 200237;
    2. East China University of Science and Technology, Shanghai, 200237
  • Received:1997-10-24 Online:1998-11-24 Published:1998-11-24

摘要: 测定了乙醇在环氧树脂(epoxy)/氨酯丙烯酸酯树脂(UAR)同步互穿网络(SIN)内的吸收曲线,它们能被所建立的传递模型--络合模型很好地关联.实验结果表明,络合模型所给出的模拟曲线能普遍地关联实验测定的吸收曲线,络合因子ωr的物理意义在于乙醇和SlN中的亲醇基团发生氢键化.ωr和实测的溶解度系数S、平均扩散系数D及渗透量P均与epoxy/UARSIN的组成有关,乙醇的传递主要在UAR相内进行.

关键词: 乙醇, 传输, 环氧树脂, 氨酯丙烯酸酯树脂, 互穿聚合物网络, 扩散

Abstract: A transport-complex model has been established to correlate the experimental absorption curves of epoxy resin(epoxy) and urethane acrylate resin(UAR) simultaneous interpenetrating networks(SINs)with ethanol as the diffusion agent. The experimental results show that the simulative curves calculated can be correlated by using the complex model well enough with the experimental data in general and the physical meaning of correlating coefficient ωr is expressed as the ability of migration of ethanol through the networks after it makes hydrogen bond with urethane, ester or ether groups existing in the networks. Consequently it directly responds to the structures and morphologies of the SINs. The parameters measured including the solubility constant S, average diffusion coefficient Dand penetrating weight Pare all related to the composition of such SINs. It clearly exhibits that ethanol mainly transports through the UARphase.

Key words: Ethanol, Transport, Epoxy resin, Urethane acrylate resin, Interpenetrating polymer network, Diffusion

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