| Curing of Epoxy Resin Induced by Femtosecond Laser Pulse |
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| 作者姓名： | LI Yubin ZHANG Zuoguang |
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| 作者单位： | School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
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| 基金项目： | Funded by the National Natural Science Foundation of China（No.59833110） |
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| 摘 要： | The possibility of curing of epoxy resin induced by femtosecond laser beam was explored through choosing different initators.Absorption spectroscopy, infrared spectroscopy（IR）,stereomicroscopy and scanning electron microscopy（SEM0 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 cared by irradiation of femtosecond laser pulse,while the systems containing benzoing can not be cured.It is found that diaryliodonium salts decompose under the irradiation of femtosecond lase 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.
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| 关 键 词： | 环氧树脂 光聚作用 硫化反应 微观结构 毫微微秒激光脉冲 |
| 收稿时间： | 2005-02-12 |
| 修稿时间： | 2005-10-08 |
Curing of epoxy resin induced by femtosecond laser pulse |
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| LI Yubin ZHANG Zuoguang.Curing of Epoxy Resin Induced by Femtosecond Laser Pulse[J].Journal of Wuhan University of Technology. Materials Science Edition,2005,20(4):65-68. |
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| Authors: | Li Yubin Ph D Zhang Zuoguang |
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| Affiliation: | (1) School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, 100083 Beijing, China |
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| Abstract: | 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. |
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| Keywords: | epoxy resin femtosecond laser photopolymerization curing microstructure |
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