Thermally Conductive Study of Polyethylene/Al2O3 Composite Networks Cross-linked by Electron Beam Irradiation

作     者：SHI Chengying YANG Jiayu LIU Yang WANG Yanmiao XU Wenge XU Yiquan HU Wei LIU Baijun SHI Chengying;YANG Jiayu;LIU Yang;WANG Yanmiao;XU Wenge;XU Yiquan;HU Wei;LIU Baijun

作者机构：Key Laboratory of High Performance PlasticsMinistry of EducationNational&Local Joint Engineering Laboratory for Synthesis Technology of High Performance PolymerCollege of CheniistiyJilin UniversityChangchun 130012P.R.China Changchun Radiation Technology Co.Ltd.China Isotope&Radiation Corporation(CIRC)Changchun 130102P.R.China Changchun Kinwa High Technology Co.Ltd.Changchun 130102P.R.China Key Laboratory of Polyoxonietalate ScienceKfinistiy of EducationFaculty of ChemistryNortheast Normal UniversityChangchun 130024P.R.China 

出 版 物：《Chemical Research in Chinese Universities》 (高等学校化学研究（英文版）)

年 卷 期：2020年第36卷第5期

页      面：940-945页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：Supported by the National Natural Science Foundation of China(Nos.51873076,21404013) the Science and Teclmology Development Plan of Jilin Province,China(Nos.20180201076GX,20180201075GX) the Industrial Teclmology Research and Development Funds of Jilin Province,China(No.2019C042-4) the Open Research Fund of State Key Laboratory of Polymer Physics and Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences(No.201826) 

主　　题：Electron beam(EB)-irradiation Cross-linked network Thermal conductivity 

摘      要：The surface-modifled Al2O3 particles were introduced into polyethylene(PE)to enhance the thermal conductivity,and PE/Al2O3 cross-linked networks with improved thermal and mechanical properties were prepared through electron beam(EB)irradiation *** incorporation of reactive irradiation sensitizer was useful in fabricating a high degree of cross-linking(DC)PE networks under a low irradiation *** the PE sample containing 2%sensitizer,DC ca.67.1%could be obtained under 60 kGy(1 kGy=1000 J/kg).EB-irradiation greatly improved thetensile stress of PE-based samples,and the tensile stresses of the samples with 0.2—5%TMPTA(trimethylolpr pane triacrvlate)under 60 kGy were 24.61—27.77 *** the EB-irradiated samples had higher Vicat softening temperatures than the samples without *** treatment at 120 kGy,the Vicat softening temperatures of PE-Al2O3-44/TMPTA-2 increased from 127℃to 130.4℃.SEM images revealed that PE-Al2O3-5O samples with increased amount of Al2O3 particles showed a conductionpathway,and thennal conductivity reached 0.67 W/(m·K).Thus,high-performance pipes were extruded,which could satisfy the static hydraulic blasting test and exhibit improved thennal conduction capability.