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Mechanical properties, morphology, and flame retardance of glass fiber-reinforced polyamide-toughened novolac-type phenolic resin

โœ Scribed by Feng-Yih Wang; Chen-Chi M. Ma; Wen-Jia Wu

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
343 KB
Volume
73
Category
Article
ISSN
0021-8995

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โœฆ Synopsis

The mechanical properties (tensile, flexural modulus, and impact strength) and the flame retardance of glass fiber-reinforced novolac-type phenolic resin modified with polyamide (PA-6, PA-66) were investigated. Results show that polyamide improves the mechanical properties of composites, especially for the impact strength up to 1.5-fold which shows a maximum value at 7 wt % of polyamide content. The interface between the matrix and glass fiber is increased due to the hydrogen-bonding function present in the polyamide chain. This modified phenolic composite shows excellent flame retardance, that is, UL-94, V-0, and LOI is higher than 55.

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