Modification of Interfacial Performance of Fiber Bragg Grating Embedded in the Composite Materials  

作　　者：王奔 段玉岗 LI Jinjian GAO Kan 

机构地区：[1]State Key Lab for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi 'an 710049, China [2]No. 23 Research Institute of China Electronic Technology Corporation Group, Shanghai 200437, China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2017年第4期777-782,共6页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the Fundamental Research Funds for the Central Universities(xjj2017160);the National Science and Technology Major Project(2014ZX04001091)

摘　　要：The interfacial performance of the Fiber Bragg grating（FGB） embedded in the composite was studied and the influence of interface modification on the final profile of the spectra of the FBG sensor was examined. A type of polyamine（Pentaethylenehexamine, PEHA） was proposed to modify the coating of PI on FBG, and the interfacial performance was evaluated by a pull-out test. Sharp improvements of the interfacial shear strength（77%） were obtained by 40 min treatment of PEHA. Compared with untreated specimen, FGB spectra of treated specimen in the tensile tests show improved linearity within the test regime, which proves that the enhanced interface is beneficial for the sensing performance.The interfacial performance of the Fiber Bragg grating（FGB） embedded in the composite was studied and the influence of interface modification on the final profile of the spectra of the FBG sensor was examined. A type of polyamine（Pentaethylenehexamine, PEHA） was proposed to modify the coating of PI on FBG, and the interfacial performance was evaluated by a pull-out test. Sharp improvements of the interfacial shear strength（77%） were obtained by 40 min treatment of PEHA. Compared with untreated specimen, FGB spectra of treated specimen in the tensile tests show improved linearity within the test regime, which proves that the enhanced interface is beneficial for the sensing performance.

关 键 词：fiber Bragg gratings composite interfacial adhesion smart composite materials 

分 类 号：TB33[一般工业技术—材料科学与工程] TN253[电子电信—物理电子学]