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Heat-resistant ageing-resistant sound-absorbing cotton and preparation method thereof

A sound-absorbing cotton, anti-aging technology, applied in fiber types, textiles and papermaking, fiber treatment, etc., can solve the problems of mechanical properties, sound-absorbing performance reduction, limited low-frequency sound absorption effect, affecting the service life of sound-absorbing cotton, etc., to achieve acoustic performance Improvement, good sound absorption performance, good heat resistance effect

Inactive Publication Date: 2016-01-06
WUHU HUANRUI AUTO INTERIOR DECORATION
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  • Description
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AI Technical Summary

Problems solved by technology

Ordinary polyester fiber sound-absorbing cotton has a narrow sound-absorbing bandwidth, and only has a good absorption of medium and high-frequency sounds, and has limited absorption effect on low-frequency sounds.
Moreover, ordinary sound-absorbing cotton is prone to thermal aging under high temperature conditions, resulting in a decrease in its mechanical properties and sound-absorbing performance, which affects the service life of the sound-absorbing cotton

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] A heat-resistant and aging-resistant sound-absorbing cotton, which is made from the following raw materials in parts by weight:

[0015] Polyester fiber 40, polybenzimidazole fiber 5, polym-phenylene isophthalamide fiber 10, ES fiber 10, ceramic fiber 3, dibutyl hydroxytoluene 0.1, spindle oil 3, barite powder 2, silane Joint agent KH-5501, pentaerythritol oleate 0.2, composite resin 10;

[0016] Wherein the composite resin is made of the following raw materials in parts by weight: acrylamide 8, vinyl acetate 4, potassium persulfate 0.05, polysorbate-800.1, sodium lauryl sulfate 0.5, aluminum chloride 1.5, sodium bicarbonate 4, Water 40; The preparation method of composite resin is to first add acrylamide, vinyl acetate, sodium lauryl sulfate, polysorbate-80 and aluminum chloride into water and stir for 5min, then add potassium persulfate and under nitrogen protection 50 ℃ for 0.5h, and finally add sodium bicarbonate to continue the reaction for 2h, wash and grind even...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses heat-resistant ageing-resistant sound-absorbing cotton. The heat-resistant ageing-resistant sound-absorbing cotton is prepared from, by weight, 40-60 parts of polyester fibers, 5-10 parts of polybenzimidazole fibers, 10-15 parts of poly(m-phenylene isophthalamide)fibers, 10-15 parts of ES fibers, 3-5 parts of ceramic fibers, 0.1-0.2 part of butylated hydroxytoluene, 3-5 parts of spindle oil, 2-4 parts of barite powder, 1-2 parts of silane coupling agents KH-550, 0.2-0.4 part of pentaerythritol oleate and 10-15 parts of composite resin. The sound-absorbing cotton has better full frequency sound absorption capacity, the acoustic property is obvious promoted, good heat resistance and ageing resistance are achieved, the use property is good, the service life is long, the application range is wide, and the practicability is high.

Description

technical field [0001] The invention relates to the technical field of sound absorption, in particular to a heat-resistant and aging-resistant sound-absorbing cotton and a preparation method thereof. Background technique [0002] In today's society, noise pollution has become one of the major environmental pollution problems that have attracted worldwide attention after water pollution and air pollution. The use of sound-absorbing and sound-insulating materials for sound insulation and noise reduction is a common means of controlling noise pollution. At present, the commonly used sound-absorbing cotton on the market includes glass fiber sound-absorbing cotton, sponge, polyester fiber sound-absorbing cotton, etc. Glass fiber cotton is easy to cause skin itching and respiratory allergies, which is harmful to the human body and is not suitable for indoor use. Most of the sponge is a closed-cell foam material, which has limited sound absorption performance and is more suitable...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/333D06M11/56D06M13/513D06M15/01D06M13/224D06M13/152C08F220/56C08F218/08D06M101/32D06M101/30D06M101/20
Inventor 陈峻章云张娉
Owner WUHU HUANRUI AUTO INTERIOR DECORATION
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