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

A technology of sound insulation materials and manufacturing methods, applied in the direction of sound insulation, insulation layer, building components, etc., can solve the problems of unstable shrinkage rate of product substrates, high product defect rate, poor sound absorption effect of materials, etc., to achieve elasticity and Polymerization ability, excellent sound insulation performance, and the effect of improving competitiveness

Inactive Publication Date: 2004-05-26
福州和胜汽车配件有限公司
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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

Method used

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

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Embodiment Construction

[0026] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. Referring to Fig. 1, its raw material comprises:

[0027] 1. Olefin polymer material (10): It can be EVA and LLDPE, and its proportion can be added as needed. If it is used to manufacture automobile outer hub plates, its proportion accounts for about 10% of the total material.

[0028] 2. Natural mineral filler (20): Calcium carbonate CaCo can be used 2 , if it is used to manufacture automobile outer hub plates, its composition can account for 80% of the total raw materials.

[0029] 3. Mineral grease (30): It can be a kind of operating oil, especially DOP oil. If it is used to manufacture automobile outer hub plates, its proportion accounts for about 4% of the total raw materials.

[0030] 4. Sliding material and stabilizer (40): It is a kind of hard acid zinc, if it is used for manufacturing automobile outer hub plates, its proportion is preferably a...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L23/08E04B1/82
Inventor 许金来
Owner 福州和胜汽车配件有限公司
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