Curing of epoxy resin induced by femtosecond laser pulse

被引：0

作者：

Li Y. ^{[1
]}

Zhang Z. ^{[1
]}

机构：

[1] School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics

来源：

Journal Wuhan University of Technology, Materials Science Edition | 2005年 / 20卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Curing; Epoxy resin; Femtosecond laser; Microstructure; Photopolymerization;

D O I：

10.1007/BF02841285

中图分类号：

学科分类号：

摘要：

The possibility of curing of epoxy resin induced by femtosecond laser beam was explored through choosing different initiators. Absorption spectroscopy, infrared spectroscopy (IR), stereomicroscopy and scanning electron microscopy (SEM) were applied to analyze the structure of epoxy resin systems after irradiation with a femtosecond laser beam. The experimental results show that the epoxy resin systems containing diaryliodonium salts can be cured by irradiation of femtosecond laser pulse, while the systems containing benzoin can not be cured. It is found that diaryliodonium salts decompose under the irradiation of femtosecond laser pulse through multi (two)-photon absorption, initiating the ring-opening polymerization of epoxy resin. And the appearance of cured area has a sheet structure consisting of many tiny lamellar structures.

引用

页码：65 / 68

页数：3

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