Article
  • Components of XLPE and Charge Accumulation Characteristics
  • Suh KS, Noh JS
  • XLPE의 성분과 전하축적 특성
  • 서광석, 노진서
Abstract
Effects of such components as crosslinked component, non-crosslinked component, additive(antioxidant), and residual byproducts on the charge formation in XLPE have been investigated. It has been found that the homocharge is developed in a pure crosslinked region in BRPE. Non-crosslindked component plays a rote to form the homocharge at high fields although it helps the formation of heterocharge at low fields. Residual byproduct:; formed during the crosslinking reaction cause the formation of heterocharge, whereas the antioxidant prohibits the formation of heterocharge and enhances the formation of negative charge. Of these, residual byproducts have been found to impose the most pronounced influence on the formation of heterocharge in the XLPE, so that only heterocharge is found in an as-pressed XLPE.

XLPE가 가교화된 성분, 미가교 성분, 첨가제(산화방지제)및 가교부산물 층의 성분으로 구성되어 있다는 점을 고려하여 이들 각 성분이 XLPE의 전하형성 특성에 미치는 영향을 알아 보았다. 연구결과, 순수하게 가교화된 영역에는 」동종전하가 형성되며 저분자량 물질이 없는 미가교 성분은 낮은 전압에서는 이종전하를 형성시키지만 높은 전압에서는 결국 동종전하를 형성시키는 역할을 한다. 가교화 과정에서 발생된 가교부산군은 이종전하를 축적시키는 주요 원인으로 작용하며 산화망지제는 이종전하의 형성을 억제하고 동존전하의 축적을 도와주는 것으로 추측된다. 이들 성분 중에서 가교부산물에 의한 이종전하 형성이 가장 큰 영향을 미치는 것으로 밝혀졌는데, 이런 이유 때문에 각 성분이 모두 들어 있는 제조 직후의 XLPE에는 표면적으로는 이종전하의 형성이 주된 전하형성기구로 나타났다.

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1993; 17(4): 349-356

    Published online Jul 25, 1993