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Modeling of void formation and removal in liquid composite molding. Part I: Wettability analysis
Author(s) -
Patel N.,
Lee L. James
Publication year - 1996
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.10594
Subject(s) - wetting , materials science , composite material , capillary pressure , void (composites) , molding (decorative) , composite number , capillary action , transfer molding , porosity , saturation (graph theory) , porous medium , mold , mathematics , combinatorics
Abstract This two‐part paper focuses on the characterization and simulation of two important molding defects in liquid composite molding—poor wetting and void formation. Part I analyzes resin‐fiber wettability. This involved characterization of various liquids/resins and fiber filaments/fiber mats by using wicking test and capillary pressure measurement. Methodology to quantify capillary pressurewettability relationships was developed. It was found that the Leverett J function can correlate capillary pressure‐saturation relationships for fiber reinforcements with various porosities and fiber architecture.