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Dynamic mechanical study on unidirectional polyethylene–carbon fibers: PMMA hybrid composite laminates
Author(s) -
Saha Nirmal,
Banerjee Amarnath
Publication year - 1998
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/(sici)1097-4628(19980228)67:9<1631::aid-app15>3.0.co;2-x
Subject(s) - materials science , composite material , composite number , viscoelasticity , dynamic mechanical analysis , volume fraction , polyethylene , composite laminates , glass transition , methyl methacrylate , softening , softening point , volume (thermodynamics) , dynamic modulus , polymerization , polymer , physics , quantum mechanics
Unidirectional (UD) composite laminates based on carbon fibers (CF) and high‐performance polyethylene fibers (PEF) were prepared with partially polymerized methyl methacrylate (MMA) at 25°C, followed by heating at 55°C (well below the softening point of PEF) for 2 h. The viscoelastic behavior of the composite was studied through dynamic mechanical analysis at different volume fractions of the fibers. Several parameters such as the storage modulus ( E ′), loss modulus ( E ′), and loss factor or damping efficiency (tan δ) were determined between 40 and 160°C in a resonant frequency mode. The glass transition temperature ( T g ) increased to a higher region with increase in the volume of PEF in the hybrid laminates. It was also observed that the efficiency of the composite decreases with increase in the volume fraction of the fibers. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 67:1631–1637, 1998