CN103710866A - Elastic sound-absorbing cotton and preparation method thereof - Google Patents
Elastic sound-absorbing cotton and preparation method thereof Download PDFInfo
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- CN103710866A CN103710866A CN201310600170.9A CN201310600170A CN103710866A CN 103710866 A CN103710866 A CN 103710866A CN 201310600170 A CN201310600170 A CN 201310600170A CN 103710866 A CN103710866 A CN 103710866A
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Abstract
The invention discloses elastic sound-absorbing cotton composed of a top surface layer, a back surface layer and a cellucotton layer sandwiched between the top surface layer and the back surface layer. Both the top surface layer and the back surface layer are made of non-woven fabric materials. The elastic sound-absorbing cotton is characterized in that the non-woven fabric is composed of, by weight, 100 parts of isotactic polypropylene, 4-5 parts of calcium stearate, 2-3 parts of sodium chromate, 1-2 parts of sodium molybdate , 2-3 parts of sodium sulfate, 12-15 parts of dioctyl phthalate, 1-2 parts of dysprosium oxide, 1-2 parts of boron nitride, 12-15 parts of montmorillonoid, 10-12 parts of wheat straw, 3-4 parts of Cacumen biotae, 4-5 parts of Eclipta prostrata, 2-3 parts of kuh-seng, 1-2 parts of mastix and 4-5 parts of assistant, and is prepared by a melt blowing process. As the non-woven fabric is prepared by the melt blowing process, the method for preparing the elastic sound-absorbing cotton is simple, the raw materials of the elastic sound-absorbing cotton are environmentally friendly, cheap and easy to obtain, the elastic sound-absorbing cotton has the advantages of good evenness and excellent resilience, expanded function and application range as compared with the general sound-absorbing cotton, and the like.
Description
Technical field
The present invention relates to Nonwovens In Technology, be specifically related to a kind of elasticity acoustical cotton and preparation method thereof.
Background technology
Noise directly affects the raising of people's physical and mental health and quality of life, for a long time in noise circumstance, can cause that hearing loss even may bring out some diseases.Will be away from noise, what we can do is exactly sound-absorbing and sound insulation.Acoustical cotton, the high-frequency noises vibrational energy that produces in life can be converted to acoustical cotton inside fine count fiber kinetic energy and lead into heat energy and disappear, reach the function of absorbing sound and lowering noise.
Acoustical cotton can be superimposed with multi-layer nonwoven fabrics, or other material of arranging in pairs or groups, and makes sound-absorbing, acoustic material.Nonwoven fabric is that textile staple or long filament are carried out to orientation or random support row, forms fibre net structure, presents many tiny gaps, this gap can be regarded hole as, has adsorption function, therefore, acoustical cotton can be considered porous material, has good sound-absorbing, heat-insulation warm keeping performance.Acoustical cotton is widely used in the industries such as building, electrical equipment, automobile, machinery as a kind of gasket material, mainly play the effect of sound insulation.But all there is more deficiency in existing acoustical cotton product and manufacture method thereof, main manifestations is: not environmental protection of manufacture craft; Sound-absorbing effect is general; Chemical resistance is low, cannot meet Code in Hazardous Special Locations instructions for use; Temperature resistant grade is low; Do not carry out flame treatment; Product caking ability is inadequate, fugitive, tension intensity is poor; Outward appearance and flatness are inadequate, thickness relatively large deviation etc.
Summary of the invention
Object of the present invention is just to provide a kind of elasticity acoustical cotton and preparation method thereof, to overcome the deficiencies in the prior art.
The object of the present invention is achieved like this:
A kind of elasticity acoustical cotton, by top coat, back layer, and the cellucotton layer being clipped between top coat and back layer forms, described top coat, back layer adopts nonwoven cloth material, nonwoven fabric described in it is characterized in that is made by meltblown by the raw material of following weight portion: isotactic polypropylene 100, calcium stearate 4-5, sodium chromate 2-3, sodium molybdate 1-2, sodium sulphate 2-3, dioctyl phthalate 12-15, dysprosia 1-2, boron nitride 1-2, imvite 12-15, wheat stalk 10-12, cacumen biotae 3-4, Eclipta prostrata 4-5, kuh-seng 2-3, frankincense 1-2, auxiliary agent 4-5.
Described auxiliary agent is made by following raw materials in part by weight: clay 10-12, nano-sized carbon 1-2, polytetrafluoroethylene powder 3-4, antioxidant NBC 1-2, isopropyl distearyl acyl-oxygen base Aluminate 2-3, zinc dialkyl dithiophosphate 2-3, magnetite 2-3, epoxidized soybean oil 35-40, n-propyl gallate 3-4, coix seed oil 2-3, vanadium diboride 1-2, Tea Polyphenols 2-3; Preparation method sends into clay, magnetite in calcining furnace and calcine 2-3 hour at 720-740 ℃, then, takes out, and sends in the hydrochloric acid solution of 10-15% and soaks 2-3 hour, filters, and obtains filter residue, with clear water, cleans, and dries, grinds to form 400-600 order powder; Gained powder mixes with other residual components, is heated to 60-70 ℃, and stirring reaction 40-50 minute is cooling, grinds to form slurry, obtains.
The preparation method of described a kind of elasticity acoustical cotton, is characterized in that comprising the following steps:
(1), cacumen biotae, Eclipta prostrata, kuh-seng, frankincense are merged and pulverize 230-280 order powder, then, to the powder air blast of gained, it is seethed, to spray form dioctyl phthalate in the powder seething, the two is fully mixed;
(2), wheat stalk is sent in retort, at 530-680 ℃, 3-4 hour is processed in charing, takes out, and the imvite of crossing with calcination processing is ground into powder;
(3), isotactic polypropylene is heated to molten condition, add step (1), (2) material, stir;
(4), in step (3) material, add other residual components, fully stir, mix, by nozzle, spray and thread make nonwoven fabric.
The present invention has following beneficial effect: the present invention adopts meltblown to prepare nonwoven fabric, have that technique is simple, raw material green cheap and easy to get, controllability good, production efficiency is high, and industrializing implementation is strong, can guarantee stable and reliable product quality, the acoustical cotton making has the advantages such as smooth appearance degree is good, resilience is excellent, expanded common acoustical cotton purposes and the scope of application.
The specific embodiment
Described elasticity acoustical cotton, by top coat, back layer, and the cellucotton layer being clipped between top coat and back layer forms, described top coat, back layer adopt nonwoven cloth material, and the nonwoven fabric described in it is characterized in that is made by meltblown by the raw material of following weight portion: isotactic polypropylene 100, calcium stearate 5, sodium chromate 2, sodium molybdate 1, sodium sulphate 3, dioctyl phthalate 14, dysprosia 2, boron nitride 1, imvite 13, wheat stalk 11, cacumen biotae 4, Eclipta prostrata 4, kuh-seng 2, frankincense 2, auxiliary agent 5.
Described auxiliary agent by following weight portion (kilogram) raw material makes: clay 10, nano-sized carbon 1, polytetrafluoroethylene powder 3, antioxidant NBC 1, isopropyl distearyl acyl-oxygen base Aluminate 2, zinc dialkyl dithiophosphate 2, magnetite 3, epoxidized soybean oil 35, n-propyl gallate 3, coix seed oil 2, vanadium diboride 1, Tea Polyphenols 3; Preparation method sends into clay, magnetite in calcining furnace and calcine 2-3 hour at 720-740 ℃, then, takes out, and sends in the hydrochloric acid solution of 10-15% and soaks 2-3 hour, filters, and obtains filter residue, with clear water, cleans, and dries, grinds to form 400-600 order powder; Gained powder mixes with other residual components, is heated to 60-70 ℃, and stirring reaction 40-50 minute is cooling, grinds to form slurry, obtains.
Preparation method comprises the following steps:
(1), cacumen biotae, Eclipta prostrata, kuh-seng, frankincense are merged and pulverize 230-280 order powder, then, to the powder air blast of gained, it is seethed, to spray form dioctyl phthalate in the powder seething, the two is fully mixed;
(2), wheat stalk is sent in retort, at 530-680 ℃, 3-4 hour is processed in charing, takes out, and the imvite of crossing with calcination processing is ground into powder;
(3), isotactic polypropylene is heated to molten condition, add step (1), (2) material, stir;
(4), in step (3) material, add other residual components, fully stir, mix, by nozzle, spray and thread make nonwoven fabric.
After tested, the distribution of fiber diameters of resulting materials is 1.6-1.9 μ m, and tearing strength is 547N/m, and the coefficient of heat conduction is 4.358-6.312W/ (m
2℃), oxygen index (OI) is 38%-51%, noise reduction coefficient is 0.83-0.87.
Claims (2)
1. an elasticity acoustical cotton, by top coat, back layer, and the cellucotton layer being clipped between top coat and back layer forms, described top coat, back layer adopts nonwoven cloth material, nonwoven fabric described in it is characterized in that is made by meltblown by the raw material of following weight portion: isotactic polypropylene 100, calcium stearate 4-5, sodium chromate 2-3, sodium molybdate 1-2, sodium sulphate 2-3, dioctyl phthalate 12-15, dysprosia 1-2, boron nitride 1-2, imvite 12-15, wheat stalk 10-12, cacumen biotae 3-4, Eclipta prostrata 4-5, kuh-seng 2-3, frankincense 1-2, auxiliary agent 4-5, described auxiliary agent is made by following raw materials in part by weight: clay 10-12, nano-sized carbon 1-2, polytetrafluoroethylene powder 3-4, antioxidant NBC 1-2, isopropyl distearyl acyl-oxygen base Aluminate 2-3, zinc dialkyl dithiophosphate 2-3, magnetite 2-3, epoxidized soybean oil 35-40, n-propyl gallate 3-4, coix seed oil 2-3, vanadium diboride 1-2, Tea Polyphenols 2-3, preparation method sends into clay, magnetite in calcining furnace and calcine 2-3 hour at 720-740 ℃, then, takes out, and sends in the hydrochloric acid solution of 10-15% and soaks 2-3 hour, filters, and obtains filter residue, with clear water, cleans, and dries, grinds to form 400-600 order powder, gained powder mixes with other residual components, is heated to 60-70 ℃, and stirring reaction 40-50 minute is cooling, grinds to form slurry, obtains.
2. the preparation method of a kind of elasticity acoustical cotton according to claim 1, is characterized in that comprising the following steps:
(1), cacumen biotae, Eclipta prostrata, kuh-seng, frankincense are merged and pulverize 230-280 order powder, then, to the powder air blast of gained, it is seethed, to spray form dioctyl phthalate in the powder seething, the two is fully mixed;
(2), wheat stalk is sent in retort, at 530-680 ℃, 3-4 hour is processed in charing, takes out, and the imvite of crossing with calcination processing is ground into powder;
(3), isotactic polypropylene is heated to molten condition, add step (1), (2) material, stir;
(4), in step (3) material, add other residual components, fully stir, mix, by nozzle, spray and thread make nonwoven fabric.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310600170.9A CN103710866A (en) | 2013-11-25 | 2013-11-25 | Elastic sound-absorbing cotton and preparation method thereof |
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| CN201310600170.9A CN103710866A (en) | 2013-11-25 | 2013-11-25 | Elastic sound-absorbing cotton and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104727141A (en) * | 2015-03-14 | 2015-06-24 | 芜湖众力部件有限公司 | Nano copper-styrene-acrylic composite emulsion-coated polypropylene nonwoven sound-absorbing material for automotive interiors |
| CN104726994A (en) * | 2014-12-26 | 2015-06-24 | 安徽省中日农业环保科技有限公司 | Catechinic acid fiber blended deodorization flame-retardant woven fabric and manufacturing method thereof |
| CN105506856A (en) * | 2016-01-26 | 2016-04-20 | 芜湖环瑞汽车内饰件有限公司 | High-elasticity sound-absorbing cotton and preparation method thereof |
| CN105525439A (en) * | 2016-01-26 | 2016-04-27 | 芜湖环瑞汽车内饰件有限公司 | Waterproof and oil-proof sound absorption cotton and preparation method thereof |
| CN107938176A (en) * | 2017-12-12 | 2018-04-20 | 马鞍山市鑫程纳米新材料科技有限公司 | A kind of preparation method of high-strength meltblown non-woven fabrics |
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| CN101946033A (en) * | 2007-12-28 | 2011-01-12 | 3M创新有限公司 | Composite nonwoven fibrous webs and methods of making and using the same |
| CN102965846A (en) * | 2012-11-22 | 2013-03-13 | 芜湖跃飞新型吸音材料股份有限公司 | PET (polyethylene glycol terephthalate) fiber/polyimide fiber composite sound absorbing cotton and preparation method of PET fiber/polyimide fiber composite sound absorbing cotton |
| CN102965843A (en) * | 2012-11-22 | 2013-03-13 | 芜湖跃飞新型吸音材料股份有限公司 | PET (polyethylene glycol terephthalate) fiber/teflon fiber composite sound absorbing cotton and preparation method of PET fiber/teflon fiber composite sound absorbing cotton |
| CN102965845A (en) * | 2012-11-22 | 2013-03-13 | 芜湖跃飞新型吸音材料股份有限公司 | PET (polyethylene glycol terephthalate) fiber/aluminum silicate fiber composite sound absorbing cotton and preparation method of PET fiber/aluminum silicate fiber composite sound absorbing cotton |
| CN102965847A (en) * | 2012-11-22 | 2013-03-13 | 芜湖跃飞新型吸音材料股份有限公司 | PET (polyethylene glycol terephthalate) fiber/polyacrylonitrile fiber composite sound absorbing cotton and preparation method of PET fiber/polyacrylonitrile fiber composite sound absorbing cotton |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101946033A (en) * | 2007-12-28 | 2011-01-12 | 3M创新有限公司 | Composite nonwoven fibrous webs and methods of making and using the same |
| CN102965846A (en) * | 2012-11-22 | 2013-03-13 | 芜湖跃飞新型吸音材料股份有限公司 | PET (polyethylene glycol terephthalate) fiber/polyimide fiber composite sound absorbing cotton and preparation method of PET fiber/polyimide fiber composite sound absorbing cotton |
| CN102965843A (en) * | 2012-11-22 | 2013-03-13 | 芜湖跃飞新型吸音材料股份有限公司 | PET (polyethylene glycol terephthalate) fiber/teflon fiber composite sound absorbing cotton and preparation method of PET fiber/teflon fiber composite sound absorbing cotton |
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| CN102965847A (en) * | 2012-11-22 | 2013-03-13 | 芜湖跃飞新型吸音材料股份有限公司 | PET (polyethylene glycol terephthalate) fiber/polyacrylonitrile fiber composite sound absorbing cotton and preparation method of PET fiber/polyacrylonitrile fiber composite sound absorbing cotton |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104726994A (en) * | 2014-12-26 | 2015-06-24 | 安徽省中日农业环保科技有限公司 | Catechinic acid fiber blended deodorization flame-retardant woven fabric and manufacturing method thereof |
| CN104726994B (en) * | 2014-12-26 | 2016-08-24 | 安徽省中日农业环保科技有限公司 | A kind of catechin fire-retardant woven fabric of fiber blend deodorization and preparation method thereof |
| CN104727141A (en) * | 2015-03-14 | 2015-06-24 | 芜湖众力部件有限公司 | Nano copper-styrene-acrylic composite emulsion-coated polypropylene nonwoven sound-absorbing material for automotive interiors |
| CN105506856A (en) * | 2016-01-26 | 2016-04-20 | 芜湖环瑞汽车内饰件有限公司 | High-elasticity sound-absorbing cotton and preparation method thereof |
| CN105525439A (en) * | 2016-01-26 | 2016-04-27 | 芜湖环瑞汽车内饰件有限公司 | Waterproof and oil-proof sound absorption cotton and preparation method thereof |
| CN107938176A (en) * | 2017-12-12 | 2018-04-20 | 马鞍山市鑫程纳米新材料科技有限公司 | A kind of preparation method of high-strength meltblown non-woven fabrics |
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Application publication date: 20140409 |