Experimental Study of Ways to Improve the Acoustic Properties of Laminated Paper Plastics
V. Yu. Kirpichnikov1, V. Yu. Smolnikov1, E. S. Skoblya2, A. I. Syatkovsky2
1Krylov State Research Center, St. Petersburg, Russia
2Plastpolimer company, St. Petersburg, Russia
Keywords: vibration absorption, sound emission, vibration-absorbing composites, high-pressure laminate
Abstract
The efficiency of two ways to reduce vibration and sound emission of a plate made of paper-laminated plastic (high-pressure laminate) has been investigated. It has been found that the inclusion of a polymer polyvinyl acetate film in the plastic structure or using constrained damping layer treatments based on polyvinyl acetate film and aluminum foil or plastic leads to a significant improvement in its vibroacoustic characteristics. The greatest reduction in vibration and sound emission was obtained when applying a coating with aluminum foil whose thickness was six times less than that of the damped plastic plate
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