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Carbon‐black‐filled polyolefine as a positive temperature coefficient material: Effect of composition, processing, and filler treatment
Author(s) -
Yu Gang,
Zhang Ming Qiu,
Zeng Han Min
Publication year - 1998
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19981017)70:3<559::aid-app18>3.0.co;2-w
Subject(s) - carbon black , materials science , composite material , temperature coefficient , filler (materials) , composite number , carbon fibers , polyethylene , electrical resistivity and conductivity , polymer , natural rubber , electrical engineering , engineering
Polymer‐based positive temperature coefficient (PTC) composites are of special interest because they have great potential in temperature‐sensitive devices. To obtain a reproducible PTC composite with acceptable PTC intensity, effect of conductive filler content, processing conditions and filler treatment with nitric acid, and titanate coupling agents on room temperature resistivity and PTC intensity of carbon‐black‐filled low‐density polyethylene composites have been described and discussed herein. The results showed that filler arrangement is a key factor influencing the ultimate material performance, which can be tailored in various ways. © 1998 John Wiley & Sons, Inc. J. Appl. Polym. Sci. 70: 559–566, 1998