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>The application of bulk polymerized acrylic and methacrylic interpenetrating polymer networks to noise and vibration damping
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The application of bulk polymerized acrylic and methacrylic interpenetrating polymer networks to noise and vibration damping
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机译：The application of bulk polymerized acrylic and methacrylic interpenetrating polymer networks to noise and vibration damping
AbstractNovel 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
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