Analysis ofPacket-like SpaceChargeBehavior inLow-density Polyethylene
Analysis ofPacket-like SpaceChargeBehavior inLow-density Polyethylene
复制标题
低密度聚乙烯中的包状空间电荷行为分析
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
T. Takada
中科院分区：
文献类型：
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作者：
Y. Tanaka;K. Mastui;T. Takada
Whenahighdcelectric field ofmorethan1 MV/cm was applied to low-density polyethylene (LDPE), ahugeamountofpositive packet-like charge ofmorethan100C/m3wasinjected into thebulkofthe filmanditmovedtowards thecathode side increasing its amountofcharge. Themovement ofthepacket-like charge gradually becameslowly, andthenitstopped in thebulkasitseemstobeastable state. Consequently, theelectric field nearthecathode wassometimes enhanced uptomorethantwice oftheapplied electric field. Toanalyze thefeature ofthepositive packet-like charge behavior inLDPE,we carryouta simple numerical simulation based ontheexperimental results. Thehypothesis isbased ontheidea that thezonewhere ispassed through bythepacket-like charge hasahigher conductivity thanthat infront ofthepacket-like charge. By considering a simple model, we havea good agreement between thenumerical simulation andthe experimental results. Since ananalysis forthebehavior under dcstress hasalready shownbefore, ananalysis under short circuit condition ismainly reported here.
