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The glass‐forming ability and thermal stability of novolac–phenolic resin
Author(s) -
Guo Kai,
Bian Xiufang,
Qin Jingyu,
Yang Lei
Publication year - 2012
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.22143
Subject(s) - materials science , thermal stability , glass transition , curing (chemistry) , composite material , fragility , thermal , chemical engineering , polymer , chemistry , thermodynamics , physics , engineering
Glass‐forming ability and thermal stability of novolac–phenolic resin with different contents of curing agent hexamethylenetramine (HMTA) are investigated. Melt fragility ( M g ) and T gd ( T gd = T g / T d ) are proposed to characterize glass‐forming ability and thermal stability of the novolac–phenolic resin, respectively. It is found that M g has a negative linear relationship with T gd . The lower M g represents the better glass‐forming ability of liquid phenolic resin while the higher T gd represents the better thermal stability of the fully cured phenolic resin. Further more, M g establishes a kinetic relationship between glass‐forming ability of liquid uncured and thermal stability of fully cured novolac–phenolic resin in terms of comparing with T gd . POLYM. COMPOS., 2012. © 2011 Society of Plastics Engineers
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