High-tenacity high-weatherability sound absorbing cotton and preparation method thereof

Abstract

The invention discloses high-tenacity high-weatherability sound absorbing cotton which is prepared from, by weight, 10-15 parts of polytrimethylene terephthalate, 1-2 parts of calcium stearoyl lactylate, 70-90 parts of polypropylene, 0.5-1 part of gelatin, 5-10 parts of attapulgite, 0.5-1 part of lauryl sodium sulfate, 2-4 parts of styrene, 0.5-1 part of epoxy soybean oil, 0.3-0.5 part of antioxidant BHT, 0.3-0.5 part of photostabilizer UV-531, 3-5 parts of butyl methacrylate, 3-5 parts of dioctyl phthalate, 0.05-0.1 part of azodiisobutyronitrile and 3-5 parts of functional powder. The sound absorbing cotton has the advantages of sound absorbing effect, good mechanical performance and high durability, is high in tenacity and weatherability, stable in quality, long in service life, safe, environment-friendly, capable of absorbing harmful substances in air, effectively purifying the air and protecting human health and high in comprehensive value and practicability.

Description

technical field [0001] The invention relates to the technical field of sound-absorbing materials, in particular to a sound-absorbing cotton with high toughness and high weather resistance and a preparation method thereof. Background technique [0002] Due to the rapid development of the economy, the number and types of noise sources are increasing. Noise pollution has penetrated into all areas of people's work and life. Noise has become one of the most serious and widespread pollution affecting people's lives. With the increasing awareness of environmental protection, the problem of noise pollution has been paid more and more attention. In order to find a solution and ensure the normal progress of people's life and learning activities, it is necessary to continuously develop new materials that can control noise hazards. [0003] Sound-absorbing cotton is a porous sound-absorbing material. When the sound passes through the channel, it is reflected multiple times in the mater...

AI Technical Summary

Problems solved by technology

Commonly used sound-absorbing cotton includes glass fiber sound-absorbing cotton and polyester fiber sound-absorbing cotton. Glass fiber sound-absorbing cotton is poor in environmental protection, and its raw materials contain harmful substances. It is easy to cause itching when it touches human skin, and it is not convenient for construction.

Polyester fiber sound-absorbing cotton is harmless to the human body, but its mechanical properties are poor, it is easy to deform, it is difficult to process, its durability is not high, and its weather resistance is poor. become worse, seriously affecting its normal use