Mechanical Characterization of Ormosil Films on Plastics: Young's Modulus Determination by Three Points Bending

被引:10
作者
Etienne, P. [1 ]
Sempere, R. [1 ]
Phalippou, J. [1 ]
机构
[1] Univ Montpellier 2, UA 1119, Lab Sci Mat Vitreux, F-34095 Montpellier 05, France
关键词
aerogels; densification; PDA: Partially densified aerogels; impregnation;
D O I
10.1007/BF00486235
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
A protective layer has been deposited to improve the scratching properties of polycarbonate organic glasses. The starting solution consists of a mixture of organosilicon compounds, silicon alkoxides or silica colloidal solutions. The deposition is carried out using the dip coating technique. The thickness is about 2-5 mu m for the film and 1 mm for the substrate. Young's moduli of the films are obtained by a new three points bending apparatus. Young's modulus of coating depends both on silica content and on the nature of the silica used as a filler.
引用
收藏
页码:171 / 173
页数:3
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