Sound-absorbing cotton material and preparation method thereof

A technology of sound-absorbing cotton and acid-absorbing agent, applied in the field of automobile sound-absorbing materials, can solve the problems of insoluble, difficult to achieve the degree of blending, poor anti-oxidation performance, etc. The effect of yellowing resistance

Inactive Publication Date: 2018-03-09
杭州宸达新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sound-absorbing cotton material uses a large amount of additives, which is not easy to dissolve, and it is difficult to achieve the degree of blending, and the prepared product has poor oxidation resistance.

Method used

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  • Sound-absorbing cotton material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A sound-absorbing cotton material, comprising the following components in parts by weight: 100 parts of polypropylene, 0.05 part of α-tocopherol, 0.05 part of bis(2,4-di-p-isopropylphenyl) pentaerythritol bisphosphite, hard 0.02 parts of calcium stearate, 0.05 parts of thiodiethylene glycol distearate.

Embodiment 2

[0034] A sound-absorbing cotton material, comprising the following components in parts by weight, 100 parts of polypropylene, 0.05 part of α-tocopherol, 0.5 part of bis(2,4-di-p-isopropylphenyl) pentaerythritol bisphosphite, hard Zinc fatty acid 0.03 part, sodium metaaluminate 0.1 part, thiodiethylene glycol distearate 0.05 part.

Embodiment 3

[0036]A sound-absorbing cotton material, comprising the following components in parts by weight, 100 parts of polypropylene, 0.5 parts of triethylene glycol bis[3-(3-tert-butyl-4-hydroxy-5-methylphenyl) propionate] Parts, 1 part of (2,4,6-tri-tert-butylphenyl-2-butyl-2-ethyl)-1,3-propanediol phosphite, 0.04 parts of zinc stearate, 0.2 parts of sodium metaaluminate part, 0.1 part of dioctadecyl thiodipropionate.

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Abstract

The invention discloses a sound-absorbing cotton material and a preparation method thereof. The cotton material comprises the following components in parts by weight: 100-120 parts of polypropylene, 0.05-1 part of a hindered phenolic antioxidant, 0.05-1 part of a phosphite antioxidant, 0.02-0.5 part of an acid absorbing agent, and 0.05-1 part of a combination synergist. According to the invention,combined action of the hindered phenolic antioxidant and the phosphite antioxidant in the components can realize higher stability and oxidation resistance of the component material; and the combination synergist selects thiodiglycol distearate and/or distearyl thiodipropionate, so that synergistic effects produced between the combination synergist and the hindered phenolic antioxidant enhance theoxidation resistance of the material, and enhances the yellowing resistance of the material.

Description

technical field [0001] The invention relates to the field of automobile sound-absorbing materials, in particular to a sound-absorbing cotton material and a preparation method thereof. Background technique [0002] Sound, on the one hand, allows people to continuously recognize and perceive the richness and beauty of the objective world, and on the other hand, it also changes people's lifestyles and development processes. The problem of sound pollution is gradually emerging with the continuous progress of human society. The consequences of industrialization, intelligence, and integration have brought sound pollution from many sources, which not only greatly interferes with the normal functions of the human body, causes hearing loss, organ damage, and system imbalance, but also causes serious damage to many precision machinery and equipment systems. unforeseen destruction. Therefore, there is an urgent need for a sound-absorbing material with excellent sound-absorbing effect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L81/02C08K13/02C08K3/24C08K5/372C08K5/1545C08K5/098C08K5/527C08K5/134C08K5/524C08K5/3492C08K5/18C08K5/526
Inventor 曾庆红
Owner 杭州宸达新材料有限公司
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