DOUBLE PERCOLATION EFFECT ON THE ELECTRICAL-CONDUCTIVITY OF CONDUCTIVE PARTICLES FILLED POLYMER BLENDS
DOUBLE PERCOLATION EFFECT ON THE ELECTRICAL-CONDUCTIVITY OF CONDUCTIVE PARTICLES FILLED POLYMER BLENDS
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DOI：
10.1007/bf00652179
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发表时间：
1992-02-01
影响因子：
2.4
通讯作者：
TANEMURA, M
中科院分区：
文献类型：
--
作者：
SUMITA, M;SAKATA, K;TANEMURA, M
研究了炭黑（CB）填充聚合物共混物的电导率与聚合物共混比的关系。透射电子显微镜（TEM）分析表明，CB在聚合物共混物的各个组分中分布不均匀。溶剂萃取HDPE/PMMA共混物相结构的TEM照片和PMMA/PP共混物的溶剂萃取实验确定了形成富填料相结构连续性的共混比。聚合物共混物的导电性被发现由两个因素决定。一个是CB在富填料相中的浓度，另一个是该相的结构连续性。这种双重逾渗影响导电颗粒填充的聚合物共混物的导电性。
Electrical conductivity of carbon black (CB) filled polymer blends which are incompatible with each other was studied as a function of the polymer's blend ratio. Transmission electron microscope (TEM) analysis shows that CB distributes unevenly in each component of a polymer blend. TEM photographs of phase structure of solvent extracted HDPE/PMMA blend and solvent extraction experiments of PMMA/PP blend detect the blend ratio at which the structural continuity of filler rich phase is formed. The electrical conductivity of polymer blends is found to be determined by two factors. One is the concentration of CB in the filler rich phase and the other is the structural continuity of this phase. This double percolation affects the conductivity of conductive particle filled polymer blends.