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The application of bulk polymerized acrylic and methacrylic interpenetrating polymer networks to noise and vibration damping
Author(s) -
Foster J. N.,
Sperling L. H.,
Thomas D. A.
Publication year - 1987
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.1987.070330728
Subject(s) - materials science , miscibility , acrylate , methacrylate , polymer , butyl acrylate , ethyl acrylate , polymer chemistry , dynamic mechanical analysis , composite material , polymerization , copolymer
Novel acrylic/methacrylic interpenetrating polymer networks (IPNs) were examined by dynamic mechanical spectroscopy for their damping capabilities. While simple homopolymers exhibit high damping properties only over a 20–30°C range, multicomponent polymer systems with controlled degree of miscibility, such as IPNs, may exhibit high damping properties over temperature ranges as broad as approximately 100°C. Two series of IPNs based on poly( n ‐butyl acrylate) and poly( n ‐butyl methacrylate) were synthesized and the dynamic mechanical properties were investigated using a Rheovibron. Graphite was incorporated into the poly( n ‐butyl acrylate) homopolymer and a few IPNs to measure the change in the damping properties. For important IPN compositions, tan δ values between 0.4 and 0.85 were observed over a 75°C plus temperature range. Graphite increased the damping properties of poly( n ‐butyl acrylate) and the IPNs, as indicated by the tan δ values.