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Influence of processing and material variables on resin‐fiber interface in liquid composite molding
Author(s) -
Patel N.,
Rohatgi V.,
Lee L. James
Publication year - 1993
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.750140210
Subject(s) - materials science , composite material , composite number , ultimate tensile strength , molding (decorative) , mold , fiber , compression molding , birefringence , physics , quantum mechanics
In this study, systematic investigation of influence of processing variables on the tensile strength and resin‐fiber interface of composites prepared by liquid composite molding process was carried out. The variables studied included injection pressure and mold/fiber mat temperature. Fibers were better wetted and bonded at lower injection pressure and higher molding temperature, which resulted in a higher tensile strength of molded composites. Single filament composite tests were also used in conjunction with birefringence studies to characterize interface bonding. Improved interfacial behavior was observed in the case of compatible systems.