Self-adhesive gradient damping material and preparation method thereof

Abstract

The invention discloses a self-adhesive gradient damping material and a preparation method thereof. The self-adhesive gradient damping material comprises the following components by weight: 90-110 parts of butyl rubber, 50-100 parts of a first reinforcing filler, 100-150 parts of a liquid tackifier and 50-150 parts of a wrapped magnetic filler, wherein the wrapped magnetic filler consists of a magnetic material, carboxylic butadiene-styrene latex, a second reinforcing filler and a vulcanizing aid. According to the invention, the magnetic material is wrapped to form the wrapped magnetic filler,and then the wrapped magnetic filler is mixed with the butyl rubber, thus effectively improving the compatibility of the magnetic material in butyl rubber, at the same time isolating the magnetic material from the butyl rubber, and improving the dispersity and uniformity of the magnetic material in the butyl rubber; and through cooperation with external temperature and magnetic double-field equipment, the magnetic material is in gradient distribution, thus effectively improving the damping performance of the material and broadening the effective damping temperature range.

Description

technical field [0001] The invention relates to the technical field of sound insulation materials, in particular to a self-adhesive gradient damping material and a preparation method thereof. Background technique [0002] As an important branch of polymer damping materials, rubber damping materials will develop in the direction of high damping peak, wide temperature range, intelligence and industrialization. The traditional process of making rubber damping materials is to use methods such as direct blending, copolymerization, and filling. Although the process is simple, the effect of widening the damping temperature range is not obvious. [0003] New wide temperature range damping materials include interpenetrating network structure damping materials and gradient damping materials. Interpenetrating network structure damping materials are easy to obtain high damping value and wide damping temperature range, but they are mostly used in coatings, rarely used in structural ma...

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Problems solved by technology

Interpenetrating network structure damping materials are easy to obtain high damping value and wide damping temperature range, but they are mostly used in coatings, rarely used in structural materials, and the synthesis process of interpenetrating network structure damping materials is complicated , solvent removal is difficult and the cost is high

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