Laser ablation of polytetrafluoroethylene

被引：10
|
作者：
Grakovich, P. N. [1 ]
Ivanov, L. F. [1 ]
Kalinin, L. A. [1 ]
Ryabchenko, I. L. [1 ]
Tolstopyatov, E. M. [1 ]
Krasovskii, A. M. [1 ]
机构：
[1] Natl Acad Sci Belarus, VA Belyi Inst Mech Metallopolymer Syst, Gomel 246050, BELARUS
来源：
RUSSIAN JOURNAL OF GENERAL CHEMISTRY | 2009年 / 79卷 / 03期
关键词：
Laser Radiation; Laser Ablation; General Chemistry; Polytetrafluoroethylene; Irradiation Zone;
D O I：
10.1134/S107036320903044X
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Anomalous behavior of polytetrafluoroethylene (PTFE) under the action of CO2 laser radiation in vacuum is discussed. A feature of the ablation process is formation of polymer fibers which quantity depends on the target preliminary treatment and the ablation conditions. Experimental results are set out and possible mechanisms of the polymer fibering are discussed. A conclusion is made concerning two dynamic polymer components differ by the resistance to the laser beam action, appearing in the ablation crater. A method is proposed for producing unique fiber-porous polytetrafluoroethylene materials and other useful products as well as for the polytetrafluoroethylene wastes recycling. The results of industrial application of these new fiberporous materials are discussed.
引用
收藏
页码：626 / 634
页数：9
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