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The glass-forming ability and thermal stability of novolac–phenolic resin

✍ Scribed by Kai Guo; Xiufang Bian; Jingyu Qin; Lei Yang

Publisher
Society for Plastic Engineers
Year
2011
Tongue
English
Weight
182 KB
Volume
33
Category
Article
ISSN
0272-8397

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✦ Synopsis

Abstract

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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