抑制层对低密度聚乙烯空间电荷形成的影响

Proceedings of IEEE Conference on Electrical Insulation and Dielectric Phenomena - (CEIDP '93) Pub Date : 1993-10-17 DOI:10.1109/CEIDP.1993.378977

Y. Tanaka, Y. Li, T. Takada, M. Ikeda

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引用次数: 2

摘要

利用脉冲电声方法观察了市售低密度聚乙烯(LDPE)、羰基改性LDPE (LDPE/spl α /)和夹在两层LDPE/spl α /之间的LDPE (LDPE/spl α /-LDPE-LDPE/spl α /)形成的空间电荷分布。采用LDPE-/spl α /作为夹层样品的抑制层，阻断电荷注入，在40 kV/mm的外加电场下，LDPE-/spl α /没有观察到空间电荷。在该样品中，在中心LDPE层中观察到异空间电荷。另一方面，在LDPE中观察到明显的同属空间电荷。实际注入LDPE的电荷量是通过将夹在中间的LDPE样品中形成的异电荷量与LDPE样品中形成的同电荷量相减来估计的

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Effect of suppression layer on space charge formation in low-density polyethylene

Space charge distributions formed in commercially available low-density polyethylene (LDPE), modified LDPE with carbonyl groups (LDPE/spl alpha/), and sandwiched LDPE between two LDPE/spl alpha/ layers (LDPE/spl alpha/-LDPE-LDPE/spl alpha/) were observed by means of the pulsed electroacoustic method. LDPE-/spl alpha/, in which no space charges were observed up to an applied electric field of 40 kV/mm, was used as the suppression layer in the sandwiched sample for blocking the charge injection. In this sample, hetero space charges were observed in the central LDPE layer. On the other hand, apparent homo space charges were observed in LDPE. The amounts of charges actually injected into LDPE were estimated by subtracting the amount of heterocharges formed in the sandwiched LDPE sample from the homocharges formed in the LDPE sample.<>

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Proceedings of IEEE Conference on Electrical Insulation and Dielectric Phenomena - (CEIDP '93)

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