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Mechanical Properties and Water Tree Characteristics of XLPE/OMMT Nanocomposite Dielectrics
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Yunmeng YANG1, Qingzhong XU1, Fansheng DENG1, Yunzi DONG1, Xiufeng LI1, Xijing CUI2
Insulating Materials | 2021, 54(8) : 45 - 51
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Insulating Materials | 2021, 54(8): 45-51
• Material Research •
Mechanical Properties and Water Tree Characteristics of XLPE/OMMT Nanocomposite Dielectrics
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Yunmeng YANG1, Qingzhong XU1, Fansheng DENG1, Yunzi DONG1, Xiufeng LI1, Xijing CUI2
Affiliations
  • 1College of Electrical and Electronic Engineering, Shandong University of Technology, Zibo 255000, China
  • 2Zhejiang Wanma Co., Ltd., Hangzhou 311305, China
Published: 2021-08-20 doi: 10.16790/j.cnki.1009-9239.im.2021.08.008
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In order to study the influence of crosslinking behavior on the mechanical properties and water tree characteristics of nanocomposite dielectrics, we prepared two nanocomposites of polyethylene/montmorillonite (PE/OMMT) and crosslinked polyethylene/montmorillonite (XLPE/OMMT) by melt blending, and their tensile properties, dynamic mechanical properties, and water tree ageing characteristics were tested. The results show that the OMMT in XLPE plays a role of physical crosslinked point and stress dispersion, which increases the tensile strength and toughness of nanocomposites. The homogeneously dispersed OMMT of lamellar heat resistance and physical support functions improves the storage modulus of nanocomposite at high temperature. The water tree initiation time of the nanocomposites is short, and the OMMT layer is beneficial to buffer the impact of expansion and deformation of water molecules on the molecular chain, so that the growth length of water tree is smaller. The three-dimensional network structure after crosslinking enhances the ability to withstand deformation of nanocomposites, thus the nanocomposites have better resistance to water tree.

crosslinking  /  nanocomposite dielectric  /  tensile strength  /  storage modulus  /  water tree
Yunmeng YANG, Qingzhong XU, Fansheng DENG, Yunzi DONG, Xiufeng LI, Xijing CUI. Mechanical Properties and Water Tree Characteristics of XLPE/OMMT Nanocomposite Dielectrics[J]. Insulating Materials, 2021 , 54 (8) : 45 -51 . DOI: 10.16790/j.cnki.1009-9239.im.2021.08.008
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2021.08.008
  • Receive Date：2020-10-16
  • Online Date：2026-03-20
  • Published：2021-08-20
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  • Received：2020-10-16
  • Revised：2020-12-24
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Affiliations
    1College of Electrical and Electronic Engineering, Shandong University of Technology, Zibo 255000, China
    2Zhejiang Wanma Co., Ltd., Hangzhou 311305, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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