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Temperature dependence of interfacial thickness and conductivity of SIO2/LDPE composite films

文献类型：期刊论文

;
作者Yao, L; Yin, JH; Zhao, H; Yang, JM; Chen, MH; Han, BZ; Su, B; Mo, G; Mo G(默广)
刊名EUROPEAN POLYMER JOURNAL ; EUROPEAN POLYMER JOURNAL
出版日期2017 ; 2017
卷号89页码:119-128
关键词Synchrotron radiation SAXS Synchrotron radiation SAXS Interface layer Composite film SiO2 nanoparticle Conductivity Interface layer Composite film SiO2 nanoparticle Conductivity
ISSN号0014-3057 ; 0014-3057
DOI10.1016/j.eurpolymj.2017.02.002 ; 10.1016/j.eurpolymj.2017.02.002
文献子类Article ; Article
英文摘要A melt-blending process was adopted to prepare a 5 wt% and 150 mu m thick SiO2/LDPE (Low-Density Poly-Ethylene) composite film, to study the influence of the microstructure evolution of the composite film on its conductivity when the temperature changes. The results show that there is an interface layer between SiO2 and PI polymer matrix in composite film. When temperature varies from 30 degrees C to 100 degrees C, the interfacial thickness increases from 2.8 nm to 3.5 nm, and remains constant beyond 100 degrees C. DSC (Dynamic Stability Control) shows that this increase is mainly caused by the melting of lamellae of polyethylene polymer chains. DMA (Dynamic Mechanical Analyzer) indicates the bound effect of the interface on the polymer chains of the composite film. When temperature changes from 30 degrees C to 70 degrees C at the heating rate of 10 degrees C/min, the conductivity values of LDPE and SiO2/LDPE change from 1 x 10(-16) to 1 x 10(-14) s/m, 1.5 x 10(-16) to 1.7 x 10(-16) s/m, respectively. The conductivity of the composite film becomes 2 orders of magnitude smaller than that of pure polyethylene film. The increases of interface layer limit the space charge accumulation effectively, and lowers the sensitiveness of conductivity to temperature, resulting in significant improvement of insulating property.; A melt-blending process was adopted to prepare a 5 wt% and 150 mu m thick SiO2/LDPE (Low-Density Poly-Ethylene) composite film, to study the influence of the microstructure evolution of the composite film on its conductivity when the temperature changes. The results show that there is an interface layer between SiO2 and PI polymer matrix in composite film. When temperature varies from 30 degrees C to 100 degrees C, the interfacial thickness increases from 2.8 nm to 3.5 nm, and remains constant beyond 100 degrees C. DSC (Dynamic Stability Control) shows that this increase is mainly caused by the melting of lamellae of polyethylene polymer chains. DMA (Dynamic Mechanical Analyzer) indicates the bound effect of the interface on the polymer chains of the composite film. When temperature changes from 30 degrees C to 70 degrees C at the heating rate of 10 degrees C/min, the conductivity values of LDPE and SiO2/LDPE change from 1 x 10(-16) to 1 x 10(-14) s/m, 1.5 x 10(-16) to 1.7 x 10(-16) s/m, respectively. The conductivity of the composite film becomes 2 orders of magnitude smaller than that of pure polyethylene film. The increases of interface layer limit the space charge accumulation effectively, and lowers the sensitiveness of conductivity to temperature, resulting in significant improvement of insulating property.
电子版国际标准刊号1873-1945 ; 1873-1945
WOS关键词SPACE-CHARGE ACCUMULATION ; SPACE-CHARGE ACCUMULATION ; SHAPE-MEMORY POLYMERS ; POLYETHYLENE ; DIELECTRICS ; FIELD ; LDPE ; TRANSITION ; CRYSTALS ; GRADIENT ; DC ; SHAPE-MEMORY POLYMERS ; POLYETHYLENE ; DIELECTRICS ; FIELD ; LDPE ; TRANSITION ; CRYSTALS ; GRADIENT ; DC
WOS研究方向Polymer Science ; Polymer Science
语种英语 ; 英语
WOS记录号WOS:000400037500011 ; WOS:000400037500011
源URL[http://ir.ihep.ac.cn/handle/311005/285197]  
专题高能物理研究所_实验物理中心
高能物理研究所_多学科研究中心
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714		 Yao, L,Yin, JH,Zhao, H,et al. Temperature dependence of interfacial thickness and conductivity of SIO2/LDPE composite films, Temperature dependence of interfacial thickness and conductivity of SIO2/LDPE composite films[J]. EUROPEAN POLYMER JOURNAL, EUROPEAN POLYMER JOURNAL,2017, 2017,89, 89:119-128, 119-128.
APA Yao, L.,Yin, JH.,Zhao, H.,Yang, JM.,Chen, MH.,...&默广.(2017).Temperature dependence of interfacial thickness and conductivity of SIO2/LDPE composite films.EUROPEAN POLYMER JOURNAL,89,119-128.
MLA Yao, L,et al."Temperature dependence of interfacial thickness and conductivity of SIO2/LDPE composite films".EUROPEAN POLYMER JOURNAL 89(2017):119-128.

入库方式： OAI收割

来源：高能物理研究所

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