Invariant Dielectric Strength upon Addition of Low Amounts of HDPE to LDPE
Paper in proceeding, 2016
Blending of polyethylenes permits to combine the superior mechanical properties of high-density material with the higher purity that is associated with low-density resins. Mixing different polyethylene architectures offers a lot of advantages, but for electrical applications it is important that there is no detrimental effect on the resulting dielectric strength. Here, the nanostructure of crosslinked blends that comprise low-and high-density polyethylene (LDPE and HDPE) is explored. Despite the presence of higher-melting lamellae the formation of electrical trees under alternating current (AC) conditions is found to be invariant for the investigated HDPE content of 1 to 10 wt%. This observation suggests that the use of polyethylene blends is feasible for AC electrical applications.
Author
Mattias Andersson
Chalmers, Chemistry and Chemical Engineering, Applied Chemistry
Xiangrong Chen
Chalmers, Materials and Manufacturing Technology, High Voltage Engineering
Zhejiang University
Jonna Hynynen
Chalmers, Chemistry and Chemical Engineering, Applied Chemistry
Mats Andersson
Chalmers, Chemistry and Chemical Engineering, Applied Chemistry
Thomas Gkourmpis
Borealis GmbH
Per Ola Hagstrand
Borealis GmbH
Stanislaw Gubanski
Chalmers, Materials and Manufacturing Technology, High Voltage Engineering
Christian Müller
Chalmers, Chemistry and Chemical Engineering, Applied Chemistry
Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
00849162 (ISSN)
711-714Roots
Basic sciences
Subject Categories
Chemical Sciences
DOI
10.1109/CEIDP.2016.7785593