磁场对酚醛环氧树脂交联的影响

高等学校化学学报 ›› 1987, Vol. 8 ›› Issue (12): 1136.

磁场对酚醛环氧树脂交联的影响

陈贻瑞, 范震冈, 方洞浦, 姚康德

天津大学材料研究所

收稿日期:1986-06-03 出版日期:1987-12-24 发布日期:1987-12-24

Influence of a Magnetic Field on the Closs-Linking of Epoxy Novolac

Chen Yirui, Fan Zhengang, Fang Dongpu, Yao Kangde

Institute of Materials, Tianjin University, Tianjin

Received:1986-06-03 Online:1987-12-24 Published:1987-12-24

摘要/Abstract

摘要： 本文研究了均匀静电磁场(USMF)对2,4,6-三(二甲胺基苯酚(DMP-30)引发固化的高邻位酚醛(Novolac)环氧树脂交联的影响。交联反应于130-190℃下进行。由磁场中热固树脂试样的FT-IR光谱及扫描电镜观察证实,磁场效应促进了交联反应。此交联网络的完善使其试样的体积电阻率比对照样品提高1-2个数量级。玻璃化转变温度也有所提高。

Abstract: This Paper discuss the effect of a uniform static magnetic field on cross-linking of an cpoxy Novolac cured with 2,4,6-tri (dimethylaminomethyl) phenol (DMP-30). The cross-linking reaction was canied out at 130-190℃. The change of ether bond linked network formed in structure was monitored by the determination of specific resistivity qualitatively. Results shewed that the magnetic field effect can promote the cross-linking reaction. It was verified by the FT-IR spectra analysis and observation under SEM. The improvement in cross-linked network led to an enhancement of resistivity on one to two orders of magnitude higher than of the control sample and increase in glass transition temperature.

TrendMD:

陈贻瑞, 范震冈, 方洞浦, 姚康德. 磁场对酚醛环氧树脂交联的影响. 高等学校化学学报, 1987, 8(12): 1136.

Chen Yirui, Fan Zhengang, Fang Dongpu, Yao Kangde . Influence of a Magnetic Field on the Closs-Linking of Epoxy Novolac. Chem. J. Chinese Universities, 1987, 8(12): 1136.