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Polyetheretherketone composites reinforced with surface modified mica
Author(s) -
Parvaiz M. Rahail,
Mohanty Smita,
Nayak Sanjay K.,
Mahanwar P. A.
Publication year - 2010
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.21010
Subject(s) - peek , mica , materials science , composite material , compression molding , differential scanning calorimetry , ultimate tensile strength , dynamic mechanical analysis , scanning electron microscope , modulus , molding (decorative) , polymer , mold , physics , thermodynamics
Abstract Mica fillers reinforced polyetheretherketone (PEEK) composites were fabricated using compression molding technique. To improve embedding of the mica within the PEEK matrix, the mica surface was chemically modified using vinyl trimethoxysilane (VTMO), at variable concentration (0–1.5 wt%). The performance characteristics and treated mica PEEK at mica loading of 20 wt% composites were examined in terms of scanning electron microscopy, dynamic mechanical thermal analysis, and modulated differential scanning calorimetry. The tensile strength and modulus improved to the tune of 81 and 44% with treated mica‐filled PEEK composites. Mechanical tests revealed improved properties of VTMO‐treated mica/PEEK composites, which confirmed improved interfacial adhesion with chemical treatment. The increment of the dynamic modulus for the treated mica PEEK composites was also noticed to 82% as compared with untreated counterpart, at elevated temperatures of 250°C, indicating apparent improvement of high‐temperature mechanical properties. POLYM. COMPOS., 31:2121–2128, 2010. © 2010 Society of Plastics Engineers