CN104746332A - Polypropylene-based non-woven sound absorption material coated with tin antimony oxide and benzene composite emulsion for automotive interior decoration - Google Patents
Polypropylene-based non-woven sound absorption material coated with tin antimony oxide and benzene composite emulsion for automotive interior decoration Download PDFInfo
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- CN104746332A CN104746332A CN201510112330.4A CN201510112330A CN104746332A CN 104746332 A CN104746332 A CN 104746332A CN 201510112330 A CN201510112330 A CN 201510112330A CN 104746332 A CN104746332 A CN 104746332A
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Abstract
The invention relates to a non-woven sound absorption material, and particularly relates to a polypropylene-based non-woven sound absorption material coated with tin antimony oxide and benzene composite emulsion for automotive interior decoration. The polypropylene-based non-woven sound absorption material coated with tin antimony oxide and benzene composite emulsion is prepared from the following raw materials in parts by weight: 22-26 parts of polypropylene, 4-6 parts of hydroxyethyl cellulose, 12-15 parts of polystyrene, 3-5 parts of polyvinyl acetate, 0.01-0.02 part of an active carbon fiber, 1-2 parts of urea, 1-2 parts of ethylene glycol dimethacrylate, 14-18 parts of 400-600-mesh wollastonite powder, 2-3 parts of a silane coupling agent kh550, 1-2 parts of antioxidant 1010, 0.1-0.2 part of tin antimony oxide, 1-2 parts of nano-silicon, 10-12 parts of styrene-acrylic emulsion of which the solid content is 8-10 percent and 1-2 parts of an auxiliary. The prepared material is environmentally friendly, non-toxic, light in weight, high in impact folding resistance, high in flame retardance, high in waterproof property, and easy for recycling degradation; therefore, the material is the novel practical automotive sound absorption material.
Description
Technical field
The present invention relates to a kind of non-woven sound-absorbing material, be specifically related to the non-woven sound-absorbing material of the coated polypropylene-base of a kind of automotive trim tin-antiomony oxide-styrene-acrylic composite emulsion.
Background technology
Automobile start with car in driving process in can produce various dynamic noise, these noises directly concern comfort level and the hearing health of rider, excessive noise even can disturb driver attention, affect safe driving, therefore effectively reduce the noise in compartment, build quiet, healthy driving and take environment and seem particularly important.And noise in car will be reduced depend primarily on the design of car body itself, material and interior trim sound-absorbing material, be also comparatively efficient a kind of noise reduction means while that the sound insulation and noise reduction material wherein designing high-quality being the most common.
The polypropylene-base composite nonwoven material obtained with meltblown is with its ultra-fine fibre structure, produce simple efficient, the feature such as nontoxic becomes the sound-absorbing material of class extensive use in automotive trim, the most short texture of these materials, smooth fibrous outer reduces the specific area of material, thus sound wave oscillatory extinction transformation time is in the material shortened, do not reach gratifying sound-absorbing effect, noise reduction is promoted often through increase material thickness when reality uses, finished product exists yielding simultaneously, anti-resilience is poor, easy generation electrostatic, the shortcomings such as poor heat resistance.
Summary of the invention
The object of the invention is to, for the deficiency of current material, provide the coated polypropylene-base of a kind of novel styrene-acrylic composite emulsion non-woven sound-absorbing material, this material has high specific area, more pliable and tough compared with traditional non-woven materials compact on tissue morphology, sound insulation and noise reduction successful; To achieve these goals, the technical solution used in the present invention is as follows:
The non-woven sound-absorbing material of a kind of coated polypropylene-base of automotive trim tin-antiomony oxide-styrene-acrylic composite emulsion, it is characterized in that: described sound-absorbing material is made up of the raw material of following weight portion: polypropylene 22-26, hydroxyethylcellulose 4-6, polystyrene 12-15, polyvinyl acetate 3-5, activated carbon fiber 0.01-0.02, urea 1-2, ethylene glycol dimethacrylate 1-2, 400-600 order wollastonite in powder 14-18, silane coupler kh550 2-3, antioxidant 1010 1-2, tin-antiomony oxide 0.1-0.2, nano-silicon 1-2, solid content is 8-10% benzene emulsion 10-12, auxiliary agent 1-2,
Described auxiliary agent is made up of the raw material of following weight portion: neopelex 0.4-0.5, nanometer silicon carbide 0.8-1, propylene glycol 2-3, solid content is the nano alumina sol 2-4 of 15-20%, phenylpropyl alcohol triazole 0.1-0.2, 3-TSL 8330 0.1-0.2, water 10-12, preparation method is: first nano-silicon nitride and 3-TSL 8330 mixed grinding are disperseed 30-40min, obtain modified Nano silicon nitride for subsequent use, subsequently again by propylene glycol, neopelex drops in water, be stirred to after material dissolves dispersion completely and add modified Nano silicon nitride, ultrasonic disperse 30-40min, finally add other leftover materials, namely compound Modification of Styrene-Acrylate Emulsion auxiliary agent is obtained after high-speed stirred 50-60min.
The described non-woven sound-absorbing material of the coated polypropylene-base of a kind of automotive trim tin-antiomony oxide-styrene-acrylic composite emulsion, its preparation method is as follows:
(1) first tin-antiomony oxide, nano-silicon, auxiliary agent are dropped into together in benzene emulsion, ultrasonic process 50-60min, makes material dispersed in emulsion, obtains styrene-acrylic composite emulsion for subsequent use;
(2) hydroxyethylcellulose, activated carbon fiber, wollastonite in powder and silane coupler kh550 mixed grinding are disperseed 2-3h, gained material mixes with other leftover materials, stir in rear input double screw extruder and melt extrude granulation at 170-180 DEG C of temperature, obtain modified polypropene base master batch;
(3) the modified polypropene base master batch of step (2) gained is dropped into melting at 190-200 DEG C in screw extruder, melt is the meltblown beam spinneret orifice ejection of 230-250 DEG C through temperature, and stretch under the high velocity, hot air stream effect of 260-280 DEG C laggard enter receiving system, being gathered on the reception device after net until filament uniformly sprays in silk screen by complex emulsions prepared by step (1), solidifies until styrene-acrylic composite emulsion the polypropylene-base nonwoven material that to get product after drying completely.
Beneficial effect of the present invention is, the advantage of conventional polypropylene nonwoven material has been acted on through the fibre web material that obtains of composite modified polypropylene base master batch spray silk, its mechanical property is further improved, toughness is better, and porosity increases, and is more conducive to absorbing sound and lowering noise, and styrene-acrylic composite emulsion is after the coated solidification of fiber surface, the material wherein adulterated greatly improves specific area and the surface-activity of fiber, and accelerate absorption and the decay of sound wave, soundproof effect is obvious; Sound-absorbing material environment-protecting asepsis prepared by the present invention, light weight are shock-resistant folding, fire-resistant waterproof, and be easy to reclaim degraded, be a kind of automobile-used sound-absorbing material of novel practical simultaneously.
Detailed description of the invention
Embodiment
The non-woven sound-absorbing material of a kind of coated polypropylene-base of automotive trim tin-antiomony oxide-styrene-acrylic composite emulsion, is characterized in that: described sound-absorbing material is made up of the raw material of following weight portion: polipropene 25, hydroxyethylcellulose 5, polystyrene 15, polyvinyl acetate 4, activated carbon fiber 0.01, urea 2, ethylene glycol dimethacrylate 2,600 order wollastonite in powder 16, silane coupler kh550 3, antioxidant 1010 2, tin-antiomony oxide 0.1, nano-silicon 1, solid content are 8% benzene emulsion 12, auxiliary agent 2;
Wherein auxiliary agent is made up of the raw material of following weight portion: neopelex 0.4, nanometer silicon carbide 0.8, propylene glycol 3, solid content is the nano alumina sol 3 of 15%, phenylpropyl alcohol triazole 0.1, 3-TSL 8330 0.1, water 10, preparation method is: first nano-silicon nitride and 3-TSL 8330 mixed grinding are disperseed 40min, obtain modified Nano silicon nitride for subsequent use, subsequently again by propylene glycol, neopelex drops in water, be stirred to after material dissolves dispersion completely and add modified Nano silicon nitride, ultrasonic disperse 35min, finally add other leftover materials, namely compound Modification of Styrene-Acrylate Emulsion auxiliary agent is obtained after high-speed stirred 55min.
The non-woven sound-absorbing material of a kind of coated polypropylene-base of automotive trim tin-antiomony oxide-styrene-acrylic composite emulsion, its preparation method is as follows:
(1) first tin-antiomony oxide, nano-silicon, auxiliary agent are dropped into together in benzene emulsion, ultrasonic process 55min, makes material dispersed in emulsion, obtains styrene-acrylic composite emulsion for subsequent use;
(2) hydroxyethylcellulose, activated carbon fiber, wollastonite in powder and silane coupler kh550 mixed grinding are disperseed 2.5h, gained material mixes with other leftover materials, stir in rear input double screw extruder and melt extrude granulation at 175 DEG C of temperature, obtain modified polypropene base master batch;
(3) the modified polypropene base master batch of step (2) gained is dropped into melting at 195 DEG C in screw extruder, melt is the meltblown beam spinneret orifice ejection of 235 DEG C through temperature, and stretch under the high velocity, hot air stream effect of 265 DEG C laggard enter receiving system, being gathered on the reception device after net until filament uniformly sprays in silk screen by complex emulsions prepared by step (1), solidifies until styrene-acrylic composite emulsion the polypropylene-base nonwoven material that to get product after drying completely.
The sound-absorbing material obtained by the present embodiment is prepared into the thick thin layer of 8mm, and its surface density is: 368g/m
-2; Longitudinal tensile strength (N. (5cm)
-1) be: 66.4.
Its sound absorption qualities test result is:
| Frequency of sound wave | 100Hz | 200Hz | 500Hz | 1KHz | 2KHz | 3KHz | 4KHz | 5KHz |
| Acoustic absorptivity | 0.04 | 0.06 | 0.15 | 0.38 | 0.54 | 0.72 | 0.88 | 0.90 |
Claims (2)
1. the non-woven sound-absorbing material of the coated polypropylene-base of automotive trim tin-antiomony oxide-styrene-acrylic composite emulsion, it is characterized in that: described sound-absorbing material is made up of the raw material of following weight portion: polypropylene 22-26, hydroxyethylcellulose 4-6, polystyrene 12-15, polyvinyl acetate 3-5, activated carbon fiber 0.01-0.02, urea 1-2, ethylene glycol dimethacrylate 1-2, 400-600 order wollastonite in powder 14-18, silane coupler kh550 2-3, antioxidant 1010 1-2, tin-antiomony oxide 0.1-0.2, nano-silicon 1-2, solid content is 8-10% benzene emulsion 10-12, auxiliary agent 1-2,
Described auxiliary agent is made up of the raw material of following weight portion: neopelex 0.4-0.5, nanometer silicon carbide 0.8-1, propylene glycol 2-3, solid content is the nano alumina sol 2-4 of 15-20%, phenylpropyl alcohol triazole 0.1-0.2, 3-TSL 8330 0.1-0.2, water 10-12, preparation method is: first nano-silicon nitride and 3-TSL 8330 mixed grinding are disperseed 30-40min, obtain modified Nano silicon nitride for subsequent use, subsequently again by propylene glycol, neopelex drops in water, be stirred to after material dissolves dispersion completely and add modified Nano silicon nitride, ultrasonic disperse 30-40min, finally add other leftover materials, namely compound Modification of Styrene-Acrylate Emulsion auxiliary agent is obtained after high-speed stirred 50-60min.
2. the non-woven sound-absorbing material of the coated polypropylene-base of a kind of automotive trim tin-antiomony oxide-styrene-acrylic composite emulsion as claimed in claim 1, the preparation method of this material is as follows:
(1) first tin-antiomony oxide, nano-silicon, auxiliary agent are dropped into together in benzene emulsion, ultrasonic process 50-60min, makes material dispersed in emulsion, obtains styrene-acrylic composite emulsion for subsequent use;
(2) hydroxyethylcellulose, activated carbon fiber, wollastonite in powder and silane coupler kh550 mixed grinding are disperseed 2-3h, gained material mixes with other leftover materials, stir in rear input double screw extruder and melt extrude granulation at 170-180 DEG C of temperature, obtain modified polypropene base master batch;
(3) the modified polypropene base master batch of step (2) gained is dropped into melting at 190-200 DEG C in screw extruder, melt is the meltblown beam spinneret orifice ejection of 230-250 DEG C through temperature, and stretch under the high velocity, hot air stream effect of 260-280 DEG C laggard enter receiving system, being gathered on the reception device after net until filament uniformly sprays in silk screen by complex emulsions prepared by step (1), solidifies until styrene-acrylic composite emulsion the polypropylene-base nonwoven material that to get product after drying completely.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510112330.4A CN104746332A (en) | 2015-03-16 | 2015-03-16 | Polypropylene-based non-woven sound absorption material coated with tin antimony oxide and benzene composite emulsion for automotive interior decoration |
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| CN201510112330.4A CN104746332A (en) | 2015-03-16 | 2015-03-16 | Polypropylene-based non-woven sound absorption material coated with tin antimony oxide and benzene composite emulsion for automotive interior decoration |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106319766A (en) * | 2016-08-19 | 2017-01-11 | 马鞍山湖滨无纺布科技有限公司 | Ultraviolet-proof nonwoven fabric capable of continuously releasing negative oxygen ions and preparation method thereof |
| CN107780046A (en) * | 2016-08-31 | 2018-03-09 | 广东协宏无纺布科技有限公司 | A kind of multilayer folding non-woven fabrics |
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| EP2554091A1 (en) * | 2011-08-01 | 2013-02-06 | Faist Chem Tec GmbH | Acoustic baffling sandwich board with perforation |
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