CN103963402A - Isotactic polypropylene fiber/PET (Polyethylene Terephthalate) fiber composite non-woven fabric sound absorbing cotton - Google Patents

Abstract

The invention relates to sound absorbing cotton, in particular to isotactic polypropylene fiber/PET (Polyethylene Terephthalate) fiber composite non-woven fabric sound absorbing cotton. The sound absorbing cotton comprises a superface layer, a rear layer and a cellucotton layer clamped between the superface layer and the rear layer. The superface layer and the rear layer are made from non-woven fabric materials, and the non-woven fabric is prepared in a melt-blowing method from the following raw materials by weight: 100 parts of isotactic polypropylene, 12-15 parts of PET, 2-3 parts of cuprous chloride, 1-2 parts of an antioxygen 168, 4-5 parts of polymethylphenyl siloxane fluid, 10-12 parts of activated carbon, 10-12 parts of diatomite, 2-3 parts of clay, 3-4 parts of dandelion, 2-3 parts of rabdosia, 1-2 parts of salix leaves and 4-5 parts of additives. The sound absorbing cotton adopts the isotactic polypropylene fiber/PET fiber composite non-woven fabric that is good in mechanical property and close-grained in quality as the outer-layer material, effectively prevents the interlayer cellucotton from leaking, achieves the effects of environmental protection, safety, water resistance, flame retardancy, sound absorption, noise reduction and the like, and has a wide application prospect.

Description

A kind of isotactic polypropylene fibre/PET fiber composite nonwoven acoustical cotton

Technical field

The present invention relates to a kind of acoustical cotton, be specifically related to a kind of isotactic polypropylene fibre/PET fiber composite nonwoven acoustical cotton.

Background technology

Acoustical cotton is effect materials such as a class set absorbing sound and lowering noise, control tonequality and decoration, be widely used in the places such as household, music hall, cinema, automobile, factory building, traditional acoustical cotton material is mainly the materials such as glass fibre, polyester fiber, rock wool, mineral wool, but there is certain defect in acoustical cotton prepared by these materials, as poor in the feature of environmental protection, cause a disease carcinogenic, inflammable, water imbibition is poor, service life is short etc., therefore, be necessary to improve original acoustical cotton material, to improve its Environmental Safety, improve user's experience; Nonwoven is undoubtedly a kind of desirable substitution material, it has moisture retardant, pliable and tough light weight, good permeability, can recycle, the advantage such as nontoxic, coordinate again other sound-absorbing materials, can effectively improve the defect of existing acoustical cotton, promote sound-absorbing, soundproof effect.

Summary of the invention

The object of the invention is to, for the deficiency of current material, provide a kind of isotactic polypropylene fibre/PET fiber composite nonwoven acoustical cotton, make it have good mechanical property, and environmental protection flame retardant, sound-absorbing protection against the tide, to achieve these goals, the technical solution used in the present invention is as follows:

A kind of isotactic polypropylene fibre/PET fiber composite nonwoven 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 described in it is characterized in that is made up by meltblown of the raw material of following weight portion: isotactic polypropylene 100, PET 12-15, stannous chloride 2-3, irgasfos 168 1-2, polymethylphenyl siloxane fluid 4-5, active carbon 10-12, diatomite 10-12, clay 2-3, dandelion 3-4, Rabdosia rubescens 2-3, willow leaf 1-2, auxiliary agent 4-5,

Described auxiliary agent is made up of the raw material of following weight portion: mica 30-40, nano-sized carbon 1-2, antioxidant MB 1-2, aluminate coupling agent DL-411 3-4, Sodium Benzoate 1-2,582-2 amino resins 3-4, actinolite 2-3, urea 1-2, cyanuric acid zinc 2-3, epoxyoleic acid butyl ester 35-40, n-propyl gallate 2-3, coix seed oil 1-2, vanadium carbide 2-3, Tea Polyphenols 1-2; Preparation method sends into mica, actinolite in calcining furnace and calcine 2-3 hour at 720-740 DEG C, then, takes out, and sends in the hydrochloric acid solution of 10-15% and soaks 2-3 hour, filters, and obtains filter residue, cleans with clear water, dries, grinds to form 400-600 order powder; Gained powder mixes with other residual components, is heated to 60-70 DEG C, and stirring reaction 40-50 minute is cooling, grinds to form slurry, to obtain final product.

Described a kind of isotactic polypropylene fibre/PET fiber composite nonwoven acoustical cotton, is characterized in that, nonwoven cloth material is made by following step:

(1) dandelion, Rabdosia rubescens, willow leaf mixed and pulverize as 200-250 order powder, then the powder air blast to gained, seethes it, and to spray form polymethylphenyl siloxane fluid in the powder seething, the two is fully mixed;

(2) diatomite, clay are put into calcining furnace and calcine 3-4 hour at 710-740 DEG C, take out cooling after, be ground into 300-400 object powder;

(3) isotactic polypropylene is heated to molten condition, adds step (1), (2) material, stir;

(4) in step (3) material, add other residual components, fully stir, mix, spray silk by nozzle and make nonwoven.

Beneficial effect of the present invention is, diatomite after calcining, clay powders, not only can improve the mechanical property of material, together with the natural plant fibres such as Chinese herbal medicine, can also increase sound absorption and noise isolation effect, the fibrous material that is mixed together preparation with isotactic polypropylene, PET has flexible robust, stretch-proof, heat-proof combustion-resistant, safety non-toxic, the advantage such as waterproof and dampproof, active carbon can also adsorb the harmful substance in environment for use, and consumption economies person is healthy, therefore the nonwoven acoustical cotton that prepared by the present invention, has broad application prospects.

Detailed description of the invention

Embodiment

A kind of isotactic polypropylene fibre/PET fiber composite nonwoven 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 described in it is characterized in that is made up by meltblown of the raw material of following weight portion: isotactic polypropylene 100, PET 15, stannous chloride 3, irgasfos 168 2, polymethylphenyl siloxane fluid 5, active carbon 12, diatomite 12, clay 3, dandelion 4, Rabdosia rubescens 3, willow leaf 2, auxiliary agent 5;

Above-mentioned auxiliary agent is made up of the raw material of following weight portion: mica 30, nano-sized carbon 1, antioxidant MB 1, aluminate coupling agent DL-411 3, Sodium Benzoate 1,582-2 amino resins 4, actinolite 2, urea 1, cyanuric acid zinc 2, epoxyoleic acid butyl ester 35, n-propyl gallate 3, coix seed oil 1, vanadium carbide 2, Tea Polyphenols 1; Preparation method sends into mica, actinolite in calcining furnace and calcine 2-3 hour at 720-740 DEG C, then, takes out, and sends in the hydrochloric acid solution of 10-15% and soaks 2-3 hour, filters, and obtains filter residue, cleans with clear water, dries, grinds to form 400-600 order powder; Gained powder mixes with other residual components, is heated to 60-70 DEG C, and stirring reaction 40-50 minute is cooling, grinds to form slurry, to obtain final product.。

A kind of isotactic polypropylene fibre/PET fiber composite nonwoven acoustical cotton, its top coat and back layer nonwoven cloth material are made by following step:

(1) dandelion, Rabdosia rubescens, willow leaf being mixed and pulverize is 250 order powder, and then the powder air blast to gained, seethes it, and to spray form polymethylphenyl siloxane fluid in the powder seething, the two is fully mixed;

(2) diatomite, clay are put into calcining furnace and at 710-740 DEG C, are calcined 4 hours, take out cooling after, be ground into 400 object powder;

(3) isotactic polypropylene is heated to molten condition, adds step (1), (2) material, stir;

(4) in step (3) material, add other residual components, fully stir, mix, spray silk by nozzle and make nonwoven.

The performance test results of acoustical cotton of the present invention is:

The noise reduction coefficient (NRC) of the thick product of 5cm: 0.83

Compression set rate: 2.8%

Anti-flammability: B1 level

Hygroscopicity :≤5%.

Claims (2)

1. isotactic polypropylene fibre/PET fiber composite nonwoven 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 described in it is characterized in that is made up by meltblown of the raw material of following weight portion: isotactic polypropylene 100, PET 12-15, stannous chloride 2-3, irgasfos 168 1-2, polymethylphenyl siloxane fluid 4-5, activated carbon powder 10-12, diatomite 10-12, clay 2-3, dandelion 3-4, Rabdosia rubescens 2-3, willow leaf 1-2, auxiliary agent 4-5,

Described auxiliary agent is made up of the raw material of following weight portion: mica 30-40, nano-sized carbon 1-2, antioxidant MB 1-2, aluminate coupling agent DL-411 3-4, Sodium Benzoate 1-2,582-2 amino resins 3-4, actinolite 2-3, urea 1-2, cyanuric acid zinc 2-3, epoxyoleic acid butyl ester 35-40, n-propyl gallate 2-3, coix seed oil 1-2, vanadium carbide 2-3, Tea Polyphenols 1-2; Preparation method sends into mica, actinolite in calcining furnace and calcine 2-3 hour at 720-740 DEG C, then, takes out, and sends in the hydrochloric acid solution of 10-15% and soaks 2-3 hour, filters, and obtains filter residue, cleans with clear water, dries, grinds to form 400-600 order powder; Gained powder mixes with other residual components, is heated to 60-70 DEG C, and stirring reaction 40-50 minute is cooling, grinds to form slurry, to obtain final product.

2. a kind of isotactic polypropylene fibre/PET fiber composite nonwoven acoustical cotton as claimed in claim 1, is characterized in that, described nonwoven is made by following step:

(1) dandelion, Rabdosia rubescens, willow leaf mixed and pulverize as 200-250 order powder, then the powder air blast to gained, seethes it, and to spray form polymethylphenyl siloxane fluid in the powder seething, the two is fully mixed;

(2) diatomite, clay are put into calcining furnace and calcine 3-4 hour at 710-740 DEG C, take out cooling after, be ground into 300-400 object powder;

(3) isotactic polypropylene is heated to molten condition, adds step (1), (2) material, stir;

(4) in step (3) material, add other residual components, fully stir, mix, spray silk by nozzle and make nonwoven.