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Composites of anionic (co)polyamides (nylon 6/nylon 12) with short glass E‐fibers. Preparation and properties
Author(s) -
Arvanitoyannis I.,
Psomiadou E.
Publication year - 1994
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1994.070511105
Subject(s) - materials science , composite material , polyamide , dynamic mechanical analysis , crystallinity , compression molding , nylon 6 , glass fiber , thermoplastic , nylon 66 , glass transition , synthetic fiber , differential scanning calorimetry , composite number , thermal analysis , thermoplastic composites , thermomechanical analysis , fiber , polymer , thermal , thermal expansion , mold , physics , meteorology , thermodynamics
The recent high demand of thermoplastic composites has induced an extensive experimentation and utilization of polyamides as thermoplastic sheet composites. The hand layup technique was used for the preparation of the glass fiber polyamide composites studied here. The percentage crystallinity of the composites was determined with a variety of techniques such as differential thermal analysis (DTA), wide‐angle X‐ray diffraction (WAXD) patterns, and density measurements. Glass transitions ( T g ) and melting temperatures ( T m ) were determined with DTA and dynamic mechanical thermal analyzer (DMTA) measurements. Finally, the mechanical properties (stress–strain curves and compression tests) were investigated and the results were correlated to the glass fiber content, and the percentage of the comonomer unit (caprolactam and laurolactam) in the polyamide composite. © 1994 John Wiley & Sons, Inc.