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Effect of low concentration hollow glass microspheres on mechanical and thermomechanical properties of epoxy composites
Author(s) -
Imran Mohammed,
Rahaman Ariful,
Pal Soumen
Publication year - 2019
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.25211
Subject(s) - materials science , epoxy , composite material , glass microsphere , scanning electron microscope , dynamic mechanical analysis , thermal stability , sonication , compressive strength , modulus , polymer , microsphere , chemical engineering , engineering , physics , quantum mechanics
The processing of hollow glass microsphere (HGM) based composites is one of the growing areas in materials research due to the potential of significantly changing material properties even at low HGM concentrations. HGM‐epoxy composites are prepared by sonication method. Four weight ratio configurations are considered (1, 3, 5 wt% HGM and 5 wt% NH 2 functionalized HGM) and compared with neat epoxy to study the micro‐enrichment effect. The influence of low volume HGM and functionalized HGM reinforcement on epoxy in the compressive and thermo‐mechanical behavior of the composites were characterized by thermo‐gravimetric analysis, dynamic mechanical analysis, and compression testing. The compressive strength of HP 5% sample decreased in 101%, as compared with that of EP sample, whereas, storage modulus of HP 5% and f‐HP 5% sample is increased by 27.7 and 32.5%, as compared with the EP sample, but did not significantly affected the thermal stability of the obtained composites. Scanning electron microscope images of the fractured samples had shown a good dispersion and interaction of the HGM in the matrix. By introducing HGM content, there was a remarkable difference in the surface morphology of the fractured surface of epoxy. POLYM. COMPOS., 40:3493–3499, 2019. © 2019 Society of Plastics Engineers