Suppression of Electrical and Water Tree by Additive Molecules: A Computational Insight
Suppression of Electrical and Water Tree by Additive Molecules: A Computational Insight
复制标题
添加分子抑制电树和水树:计算见解
DOI:
10.1007/978-3-030-31680-8_2
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
T. Takada
中科院分区:
文献类型:
--
作者:
S. Iwata;H. Uehara;Y. Sekii;T. Takada
Treeing is a type of electrical degradation of polymeric materials. Various types of additives for the suppression of electrical and water trees have been proposed for polymer insulation, such as by-products of crosslinking agents, ultraviolet (UV) absorbers, and surfactants. However, current understanding of the physicochemical mechanism at the molecular level is not adequate. In the present study, we investigated the suppression mechanism by computer simulation of the quantum chemical calculation based on the density functional theory (DFT) and molecular dynamics (MD) simulation. First, the electrical properties of each molecule were calculated by the DFT calculation. Next, we performed MD simulations for “by-products-UV absorbers in the PE chains model” and “surfactants-water in the PE chains model” in order to investigate the suppression mechanism of the electrical tree and the water tree from the viewpoint of molecular aggregation. The results revealed that (i) a combination of by-products and UV absorber molecules affects the ease of molecular aggregation, (ii) the intermolecular distance has temperature dependence, and (iii) surfactant molecules prevent water diffusion into the PE chains.
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DOI:
10.1109/tei.1984.298768
发表时间:
1984
期刊:
IEEE Transactions on Electrical Insulation
影响因子:
--
作者:
M. Shaw;S. Shaw
通讯作者:
S. Shaw
影响因子:
--
作者:
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通讯作者:
Y. Sekii
DOI:
10.1109/aieepas.1962.4501280
发表时间:
1961
期刊:
Annual Report 1961 Conference on Electrical Insulation
影响因子:
--
作者:
D. W. Kitchin;O. S. Pratt
通讯作者:
O. S. Pratt
影响因子:
6.3
作者:
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通讯作者:
VANDRUNEN, R
DOI:
10.1109/tdei.2009.4784567
发表时间:
2009-02
影响因子:
3.1
作者:
Y. Yamano;M. Iizuka
通讯作者:
Y. Yamano;M. Iizuka