Understanding the electrical, thermal and mechanical properties of LDPE-clay nanocomposites

Micro & nano letters

article

Sundara Mallayan¹  Ramachandran Raja Prabhu¹  Belaguppa Manjunath Ashwin Desai²  Ramachandran Velmurugan³  Ramanujam Sarathi²  Burjupati Nageshwar Rao⁴ 

[1] Department of Electrical and Electronics Engineering, B.S. Abdur Rahman University;Department of Electrical Engineering, Indian Institute of Technology Madras;Department of Aerospace Engineering, Indian Institute of Technology Madras;Central Power Research Institute

关键词: contact angle;    plasma temperature;    elastic moduli;    partial discharges;    drops;    corona;    surface charging;    clay;    filled polymers;    nanocomposites;    polyethylene insulation;    composite insulating materials;    nanomechanics;    dielectric losses;    crater depth;    nanofiller inclusion;    reduced tan (δ);    storage modulus;    modified trap distribution characteristics;    thermomechanical properties;    discharge resistance;    plasma temperature;    dynamical mechanical analysis;    surface charge decay rate;    surface discharge inception voltage;    water droplet initiated corona inception voltage;    corona ageing resistance;    contact angle;    LDPE material;    nanomontmorillonite clay;    low-density polyethylene clay nanocomposites;    LDPE-clay nanocomposites;    mechanical properties;    thermal properties;    electrical properties;    LDPE–MMT clay composites;    laser-induced breakdown spectroscopy;   

DOI  :  10.1049/mnl.2018.5702

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

The performance of low-density polyethylene (LDPE) clay nanocomposites was analysed. The inclusion of nano montmorillonite (MMT) clay in LDPE material has significantly increased the contact angle, corona ageing resistance, water droplet initiated corona inception voltage and surface discharge inception voltage of the composites. The surface charge decay rate of the samples significantly reduced on the inclusion of clay indicating modified trap distribution characteristics due to the inclusion of the filler. Dynamical mechanical analysis indicates increased storage modulus and reduced tan ( δ ) due to nanofillers inclusion. Laser-induced breakdown spectroscopy indicates that on inclusion of nanofillers the plasma temperature increases and crater depth decreases. In particular, increased discharge resistance, improved thermomechanical properties are observed with LDPE–MMT clay composites compared to pure LDPE.

【 授权许可】

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