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Heat resistance properties of poly( p ‐phenylene‐2,6‐benzobisoxazole) fiber
Author(s) -
Kuroki Tadao,
Tanaka Yoshikazu,
Hokudoh Toshiaki,
Yabuki Kazuyuki
Publication year - 1997
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(19970801)65:5<1031::aid-app21>3.0.co;2-3
Subject(s) - aramid , materials science , fiber , poly(p phenylene) , composite material , ultimate tensile strength , thermal decomposition , atmospheric temperature range , fiber type , combustion , polymer , chemistry , organic chemistry , physics , meteorology
The high temperature properties of Poly( p ‐phenylene‐2,6‐benzobisoxazole) (PBO) fiber are examined and compared with those of the p ‐Aramid fiber. In particular, the temperature dependence of tensile strength of the PBO fiber is reported for the first time. The PBO fiber has 100°C higher decomposition temperature than the p ‐Aramid fiber, and the amount of toxic gases in combustion is much smaller than the p ‐Aramid fiber. Although the relative strength decreased proportionally in the range of room temperature to 500°C, the PBO fiber has 40% of the strength at room temperature even at a temperature of 500°C. After thermal treatment at 500°C for 60 s, the PBO fiber retained 90% of its original strength. The PBO fiber is expected to substitute for asbestos, which is still used as a heat resistant cushion material. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 65:1031–1036, 1997