Method for preparing organic polymer/inorganic mineral composite foamed sound-absorbing material

Abstract

This is the producing method of a kind of polymer / inorganic mineral compound foam sound absorption material. Mix round equably following components as weight proportions: resin 20 - 50%, rubber 0 - 50%, inorganic mineral 20 - 60%, vesicant 3 - 5%, fire retarder 0.5 - 3%, and stabilizing agent 1- 4%; mixed smelt the said mixture on mixing roll for 5 - 20 minutes at 90 - 140 Deg. C to produce needed flan; chemistry froth produced flan in drying oven for 5 - 15 minutes at 150 - 220 Deg. C. According to the theory that different polymers and inorganic substances have different responses to sound frequency, the invention adopts the multi-component polymer and inorganic substance mixing method, and has both advantages of organic and inorganic materials, so it improves sound absorption performance in the middle and low frequency range.

Description

technical field [0001] The invention relates to a preparation method of a sound-absorbing material, in particular to a preparation method of an organic polymer / inorganic mineral composite foam sound-absorbing material which can significantly improve the sound absorption performance of middle and low frequencies. Background technique [0002] Together with air pollution and water pollution, noise pollution has become the three major environmental hazards in the contemporary world. The control of noise pollution has become an urgent environmental problem, and the use of porous sound-absorbing materials to absorb and reduce noise has become the main technical means at present. [0003] At present, there are three main types of sound-absorbing materials, namely, inorganic porous materials such as microporous glass cloth, metal foam, mineral wool, etc., organic foam polymers such as foam plastics, plant fiber materials, etc., and organic / inorganic composite porous materials. How...

AI Technical Summary

Problems solved by technology

However, although the mechanical properties of inorganic porous materials are good, its low-frequency sound absorption performance is ideal, but the sound absorption performance in the middle and high frequency range is not ideal, it is not easy to construct, and inorganic fiber sound-absorbing materials are easy to scatter, causing certain harm to the human body and the environment , not suitable for use in places with relatively high environmental and hygienic requirements

Synthetic organic foam polymers have excellent sound absorption performance in the middle and high frequency range, and have a wide range of applications, but the sound absorption effect of this type of material in the low frequency range is not obvious, and the mechanical properties are not ideal.

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