高等学校化学学报

高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (12): 1987.

• 论文 • 上一篇    下一篇

乙醇在环氧树酯/氨酯丙烯酸树脂互穿网络中的扩散研究(Ⅱ)──非均相传递模型及其应用

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研究所, 上海, 200237;
    2. 华东理工大学化学系, 上海, 200237
  • 收稿日期:1997-10-24 出版日期:1998-12-24 发布日期:1998-12-24
  • 通讯作者: 胡春圃
  • 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 Network (Ⅱ)——Heterogeneous Transport Model and Application

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

  1. 1. Institute of Material Science and Engineering, Shanghai, 200237;
    2. Department of Chemistry, East China University of Science and Technology, Shanghai, 200237
  • Received:1997-10-24 Online:1998-12-24 Published:1998-12-24

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被引次数

4

摘要： 由于环氧树酯(epoxy)/氨酯丙酸酯树脂(UAR)同步互穿网络(SIN)表现出明显的相分离形态,因此建立了非均相传递模型.实验结果表明,在所研究的epoxy/UARSIN质量比范围内(100/0～50/50),两个网络呈现出具有一定相畴尺寸的形态,用非均相模型能更好地关联实测的吸收曲线,关联因子ψ的物理意义为分散相在连续相中的分散程度.随着epoxy/UARSIN中UAR相的增加,ψ增加,表明UAR网络在eooxy网络中的分散程度增加,相畴尺寸变小;当SIN质量组成比为50/50时,由于两个网络成为双向连续的形态,故ψ显著增大.

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

Abstract: Aheterogeneous transport model for the diffusion of ethanol in epoxy resin(epoxy)/urethane acrylate resin(UAR) SINfilms has been established. The experimental results show that over the mass composition ratio range of epoxy and UARfrom 100/0 to 50/50, the SINs exhibit the clear phase separation morphology and the absorption curves measured can be correlated well enough with such a heterogeous transport model. The correlating factor Ψ is expressed as the degree of dispersion for the dispersion phase. With the increase of UARcontent in SIN, factor Ψ increases, which shows the increase of the degree of dispersion of UARnetwork in epoxy continuous phase as consistent with the TEMobservation. The SINwith the mass composition ratio of 50/50 shows a dual continuous morphology, and its correlating factor Ψ increases appreciably.

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

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