Citation: DUAN Jinchi, QI Yunxia, SHI Chengying, ZHAO Qi, LIU Baijun, SUN Zhaoyan, XU Yiquan, HU Wei, ZHANG Niaona. Electron Beam Radiation Modification of Polyethylene Thermal Conductive Composites[J]. Chinese Journal of Applied Chemistry, ;2020, 37(8): 896-903. doi: 10.11944/j.issn.1000-0518.2020.08.200050 shu

Electron Beam Radiation Modification of Polyethylene Thermal Conductive Composites

DUAN Jinchi ^a ,
QI Yunxia ^b ,
SHI Chengying ^c ,
ZHAO Qi ^a ,
LIU Baijun ^c ,
SUN Zhaoyan ^d ,
XU Yiquan ^b ,
HU Wei ^a,, ,
ZHANG Niaona ^a,,

a.
Changchun University of Technology, Changchun 130012, China
b.
Changchun Kinwa High Technology Co. Ltd, Changchun 130000, China
c.
Jilin University, Changchun 130012, China
d.
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China

Corresponding author: HU Wei, huw884@nenu.edu.cn ZHANG Niaona, zhangniaona@163.com
Received Date: 24 February 2020
Revised Date: 20 March 2020
Accepted Date: 21 April 2020

Fund Project: Supported by National Natural Science Foundation of China(No.21404013, No.5187306); Science and Technology Development Plan of Jilin Province, China(No.20200401036GX), "13th Five Year Plan" Science and Technology Project of Jilin Provincial Department of Education, China(No.JJKH20191297KJ), Changchun New Area "Changbai Huigu" Talent Project(No.9-2020004)"13th Five Year Plan" Science and Technology Project of Jilin Provincial Department of Education, China JJKH20191297KJChangchun New Area "Changbai Huigu" Talent Project 9-2020004Science and Technology Development Plan of Jilin Province, China 20200401036GXNational Natural Science Foundation of China 21404013National Natural Science Foundation of China 5187306

Figures(6)

In this study, the composites (PE-Al-Si) with high thermal conductivity and mechanical properties were obtained by compounding low density polyethylene (LDPE), alumina (Al₂O₃) and SiO₂ nanoparticles through melt blending, and then further modification through electron beam radiation. When the mass fraction of SiO₂ nanoparticles is 1% and the electron beam radiation (EB) dose is 120 kGy, the thermal conductivity of PE-Al-Si increases from 0.624 W/(m·K) to 0.759 W/(m·K), which is 22% increase compared with the composites without SiO₂ (PE-Al). The tensile strength of PE-Al-Si is increased by 17% compared with that of PE-Al. The results prove that SiO₂ improves the mechanical properties, the radiation efficiency and the thermal conductivity of the composites.
- polyethylene,
- electron beam radiation,
- SiO₂ nanoparticles,
- thermal conductivity
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