Method for manufacturing recoverable, nontoxic, nonflammable acoustic insulating material and its structure

Abstract

A non-toxic incombustible sound insulating material able to be recovered is prepared from high-molecular olefin material, natural minerals as filler, mineral oil, and high-molecular polymer as assistant through proportional mixing, stirring, pugging twice, extruding out, rolling to become plate, and cutting according to needed sizes. Its advantages are high sound insulating performance and no environmental pollution.

Description

Technical field: [0001] The invention belongs to building materials, and provides a manufacturing method and structure of a recyclable, non-toxic and non-flammable sound-insulating material. Background technique: [0002] In daily life, in order to reduce unnecessary noise or isolate sound leakage, sound-proof materials are often used to block or absorb sound waves, so that the two spaces (environments) will not interfere with each other. Therefore, sound insulation materials are widely used in various places, such as laying on train carriages and cars; for sound absorption and noise reduction in factories, office buildings, and public places (such as schools, hospitals, airports, etc.); Products such as noise reduction on motors. At present, the most widely used sound-absorbing material is generally PVC, and its foaming is used to form sound-absorbing and sound-insulating effects. However, the use of PVC materials as sound-absorbing materials has the following disadvantag...

AI Technical Summary

Problems solved by technology

[0003] 1. In the production process of traditional PVC sound insulation materials, when the temperature or raw material ratio changes slightly, the chemical change of the material is quite obvious, which makes the shrinkage rate of the product base material unstable, resulting in poor sound absorption effect of the material

Therefore, the main disadvantages of traditional PVC sound-absorbing materials are that the production is not easy to control, the defective rate of products remains high, and the cost is high.

[0004] 2. Polyvinyl chloride in traditional materials will produce toxic and difficult to decompose substances when heated, causing environmental pollution

[0005] 3. PVC materials will produce highly toxic gas and water pollution during the production process, and now many countries have clearly formulated regulations to prohibit its production

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