Reinforced nylon composite material for sound absorption damping and preparation method thereof

Abstract

The invention discloses a reinforced nylon composite material for sound absorption damping and a preparation method thereof. The composite material comprises the following components in parts by weight: 30-60 parts of nylon resin, 10-30 parts of aramid chopped fibers, 5-20 parts of a toughening agent and 0.5-2 parts of an antioxidant. The aramid fibers and the viscoelastic toughening agent have astrong sound absorption effect, especially high-frequency noise. When sound waves are transmitted into the composite material, mechanical energy of vibration is converted into heat energy due to the fact that the viscoelastic toughening agent has high loss modulus. The aramid fibers further limit the vibration of the sound wave, so that the sound absorption and damping effects are achieved. The reinforced nylon composite material for sound absorption damping and the preparation method thereof are suitable for electronic appliances and automobile products with high requirements on sound insulation, and have the advantages that the injection molding can be directly carried out, and the molding process is simplified.

Description

Technical field [0001] The invention relates to a reinforced nylon composite material for sound absorption and damping, belonging to the technical field of polymer materials. Background technique [0002] At present, most sound-absorbing devices adopt sound-absorbing layers such as sound-absorbing sponge and rubber to adhere to the surface of parts or devices that require sound-absorbing treatment. This treatment method has relatively large space limitations and complex processes. Summary of the invention [0003] The purpose of the present invention is to provide a reinforced nylon composite material for sound absorption and damping to solve the above technical problems of the prior art. [0004] The purpose of the present invention is achieved through the following technical solutions. [0005] A reinforced nylon composite material for sound absorption and damping, comprising the following raw materials in parts by weight: 30-60 parts of nylon resin, 10-30 parts of aramid chopped f...

AI Technical Summary

Problems solved by technology

[0002] At present, most sound-absorbing devices use sound-absorbing sponge and rubber to adhere to the surface of parts or devices that need sound-absorbing treatment. This treatment method has a large space limit and is complicated in process.

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