光子学报, 2005, 34 (9): 1332, 网络出版: 2006-06-12   

nmSiO2对聚合物光纤光栅封装材料的改性研究

Study on Property Improyement of Polymer Coated Materiat for Opticalfibre Bragg Gratings by Using nmSiO2
作者单位
西安石油大学光纤传感实验室,西安,710065
摘要
分析了刚性纳米粒子改性聚合物的原理,重点分析了nmSiO2/硅氧烷(硅橡胶)复合材料的改性机理.采用120号溶剂性汽油为分散剂,通过共混法制得nmSiO2-乙烯基硅氧烷、含氢硅氧烷硫化而成的复合材料.用AJ-Ⅲa型原子力显微镜分析研究了该材料的组团结构并测试了其力学性能.结果表明,硅氧烷橡胶改性后,材料的弹性模量增加了15.4%;拉伸强度增加了19.4%;扯断伸长率增加了30%.用改性后的硅氧烷聚合物材料封装光纤Bragg光栅(FBG)压力传感器,可有效改善封装材料与光纤光栅的耦联性能;通过粒子含量控制可以增韧增强硅氧烷,从而可制作变量程压力传感器,同时可以延长传感器的使用寿命.
Abstract
The principle of property improvement for polymer by using rigid nanometric particles has been presented,and analysis of property-improving mechanism for polymer material by using nmSiO_2/siloxane(silicone rubber) has been emphasized.Taking solvent gasoline No.120 as dispersing agent,a kind of compounded material has been made through co-mixing method to obtain nmSiO_2-vinyl siloxane with addition of hydrogen-containg siloxane for vulcanizing reaction.The agglomerative structure of the said material has been analyzed and studied by using AJ-Ⅲ_a atom-powered microscope,and its mechanical property has been tested.Results show that the elastic modulus of material has been enhanced by 15.4%,the tensile strength increased by 19.4%,and the specific elongation of breaking increased by 30%after improving property with siloxane rubber.Adopting property-improved siloxane polymer material to coat the optical fibre Bragg grating pressure sensor,the coupling behavior between coated material and optical fibre Bragg grating
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周红, 乔学光, 王洪亮, 贾振安, 罗俊, 李兰, 赵大壮. nmSiO2对聚合物光纤光栅封装材料的改性研究[J]. 光子学报, 2005, 34(9): 1332. 周红, 乔学光, 王洪亮, 贾振安, 罗俊, 李兰, 赵大壮. Study on Property Improyement of Polymer Coated Materiat for Opticalfibre Bragg Gratings by Using nmSiO2[J]. ACTA PHOTONICA SINICA, 2005, 34(9): 1332.

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