CN104594042A - Aluminum-base hollow microbead-EVA composite emulsion-coating polypropylene-base nonwoven damping material for automobile interior decoration - Google Patents
Aluminum-base hollow microbead-EVA composite emulsion-coating polypropylene-base nonwoven damping material for automobile interior decoration Download PDFInfo
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- CN104594042A CN104594042A CN201410827189.1A CN201410827189A CN104594042A CN 104594042 A CN104594042 A CN 104594042A CN 201410827189 A CN201410827189 A CN 201410827189A CN 104594042 A CN104594042 A CN 104594042A
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Abstract
The invention relates to a nonwoven damping material, especially relates to an aluminum-base hollow microbead-EVA composite emulsion-coating polypropylene-base nonwoven damping material for automobile interior decoration. The aluminum-base hollow microbead-EVA composite emulsion-coating polypropylene-base nonwoven damping material for automobile interior decoration of the invention comprises the following raw materials in parts by weight: 10-12 parts of 400-600 mesh aluminium silicate powder, 22-28 parts of polypropylene, 10-14 parts of chlorinated polyethylene, 2-3 parts of colophony, 1-2 parts of cellulose ether, 4-6 parts of styrene-maleic anhydride copolymer, 2-4 parts of poly methyl methacrylate, 0.1-0.2 part of anti-oxygen 1076, 0.1-0.2 part of anti-oxygen DLTP, 2-3 parts of silane coupling agent, 4-6 parts of basalt fibre, 0.5-0.6 part of 325-400 mesh aluminium-base hollow microbead, 10-12 parts of EVA emulsion with a solid content of 10-12% and 1-2 parts of adjuvant. The material prepared according to the invention not only embraces advantages of traditional polypropylene nonwoven materials such as improved mechanical properties, good thermal stability, impact resistance and aging resistance, but also increases cellosilk net strength, accelerates frictional attenuation of sound wave and further improves noise reducing capability. The damping material prepared according to the invention is a new applied automobile damping material that is light in weight, environment-friendly, flexible, tight, wear-resistant and corrosion-resistant.
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 a kind of automotive trim coated polypropylene-base of aluminium base cenosphere-EVA complex emulsions.
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 a kind of novel non-woven sound-absorbing material of the coated polypropylene-base of EVA complex emulsions, this material has larger specific area, in structure, comparatively traditional non-woven materials is more tight, and noise reduction is obvious; To achieve these goals, the technical solution used in the present invention is as follows:
A kind of automotive trim non-woven sound-absorbing material of the coated polypropylene-base of aluminium base cenosphere-EVA complex emulsions, it is characterized in that: described sound-absorbing material is made up of the raw material of following weight portion: 400-600 order aluminium silicate powder 10-12, polypropylene 22-28, haloflex 10-14, rosin 2-3, cellulose ether 1-2, styrene-maleic anhydride copolymer 4-6, Polymethacrylimide 2-4, antioxidant 1076 0.1-0.2, anti-oxidant DLTP 0.1-0.2, silane coupler 2-3, basalt fibre 4-6, the aluminium base cenosphere 0.5-0.6 of 325-400 order, solid content is the EVA emulsion 10-12 of 10-12%, auxiliary agent 1-2,
Described auxiliary agent is made up of the raw material of following weight portion: propylene glycol 2-4, solid content are aerosil colloidal sol 4-5, the cm-chitosan 1-2 of 15-20%, betaine 0.4-0.5, cerium rouge (cerium-oxide contents is 45%) 0.01-0.02, water 8-10, preparation method is: first propylene glycol, cm-chitosan, betaine are added to the water together, be stirred well to after material dissolves dispersion completely, add other leftover materials again, high-speed stirred dispersion 40-50min, obtains the composite modified auxiliary agent of EVA emulsion.
Described a kind of automotive trim non-woven sound-absorbing material of the coated polypropylene-base of aluminium base cenosphere-EVA complex emulsions, its preparation method is as follows:
(1) first drop in EVA emulsion together by aluminium base cenosphere, auxiliary agent, ultrasonic process 40-50min, make material dispersed in emulsion, gained complex emulsions is for subsequent use;
(2) aluminium silicate powder, basalt fibre and silane coupler mixed grinding are disperseed 1.5-2h, 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 180-200 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 250-280 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 EVA complex emulsions 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, and its mechanical property improves, Heat stability is good, shock resistance is ageing-resistant, and the EVA complex emulsions of preparation is after the coated solidification of fiber surface, and the material wherein adulterated makes the intensity of fiber, accelerate the frictional attenuation of sound wave, noise reduction capability promotes further; Sound-absorbing material light weight environmental protection prepared by the present invention, pliable and toughly to compact, wear resistant corrosion resistant, raw material availability is high, is a kind of automobile-used sound-absorbing material of novel practical.
Detailed description of the invention
Embodiment
A kind of automotive trim non-woven sound-absorbing material of the coated polypropylene-base of aluminium base cenosphere-EVA complex emulsions, is characterized in that: described sound-absorbing material is made up of the raw material of following weight portion: 425 order aluminium silicate powder 12, polypropylene 26, haloflex 14, rosin 3, cellulose ether 1, styrene-maleic anhydride copolymer 6, Polymethacrylimide 4, antioxidant 1076 0.2, anti-oxidant DLTP 0.1, silane coupler 3, the aluminium base cenosphere 0.6 of basalt fibre 6,400 order, solid content are EVA emulsion 10, the auxiliary agent 1 of 12%;
Wherein auxiliary agent is made up of the raw material of following weight portion: propylene glycol 4, solid content are aerosil colloidal sol 4, cm-chitosan 2, betaine 0.4, cerium rouge (cerium-oxide contents is 45%) 0.01, the water 9 of 20%, preparation method is: first propylene glycol, cm-chitosan, betaine are added to the water together, be stirred well to after material dissolves dispersion completely, add other leftover materials again, high-speed stirred dispersion 50min, obtains the composite modified auxiliary agent of EVA emulsion.
A kind of automotive trim non-woven sound-absorbing material of the coated polypropylene-base of aluminium base cenosphere-EVA complex emulsions, its preparation method is as follows:
(1) first drop in EVA emulsion together by aluminium base cenosphere, auxiliary agent, ultrasonic process 50min, make material dispersed in emulsion, gained complex emulsions is for subsequent use;
(2) aluminium silicate powder, basalt fibre and silane coupler mixed grinding are disperseed 2h, gained material mixes with other leftover materials, stirs in rear input double screw extruder and melt extrude granulation at 180 DEG C of temperature, obtains modified polypropene base master batch;
(3) the modified polypropene base master batch of step (2) gained is dropped into melting at 200 DEG C in screw extruder, melt is the meltblown beam spinneret orifice ejection of 240 DEG C through temperature, and stretch under the high velocity, hot air stream effect of 270 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 EVA complex emulsions 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: 373g/m
-2; Longitudinal tensile strength (N. (5cm)
-1) be: 61.8.
Its sound absorption qualities test result is:
| Frequency of sound wave | 100Hz | 200Hz | 500Hz | 1KHz | 2KHz | 3KHz | 4KHz | 5KHz |
| Acoustic absorptivity | 0.04 | 0.07 | 0.12 | 0.32 | 0.58 | 0.72 | 0.84 | 0.85 |
Claims (2)
1. the automotive trim non-woven sound-absorbing material of the coated polypropylene-base of aluminium base cenosphere-EVA complex emulsions, it is characterized in that: described sound-absorbing material is made up of the raw material of following weight portion: 400-600 order aluminium silicate powder 10-12, polypropylene 22-28, haloflex 10-14, rosin 2-3, cellulose ether 1-2, styrene-maleic anhydride copolymer 4-6, Polymethacrylimide 2-4, antioxidant 1076 0.1-0.2, anti-oxidant DLTP 0.1-0.2, silane coupler 2-3, basalt fibre 4-6, the aluminium base cenosphere 0.5-0.6 of 325-400 order, solid content is the EVA emulsion 10-12 of 10-12%, auxiliary agent 1-2,
Described auxiliary agent is made up of the raw material of following weight portion: propylene glycol 2-4, solid content are aerosil colloidal sol 4-5, the cm-chitosan 1-2 of 15-20%, betaine 0.4-0.5, cerium rouge (cerium-oxide contents is 45%) 0.01-0.02, water 8-10, preparation method is: first propylene glycol, cm-chitosan, betaine are added to the water together, be stirred well to after material dissolves dispersion completely, add other leftover materials again, high-speed stirred dispersion 40-50min, obtains the composite modified auxiliary agent of EVA emulsion.
2. a kind of automotive trim as claimed in claim 1 non-woven sound-absorbing material of the coated polypropylene-base of aluminium base cenosphere-EVA complex emulsions, the preparation method of this material is as follows:
(1) first drop in EVA emulsion together by aluminium base cenosphere, auxiliary agent, ultrasonic process 40-50min, make material dispersed in emulsion, gained complex emulsions is for subsequent use;
(2) aluminium silicate powder, basalt fibre and silane coupler mixed grinding are disperseed 1.5-2h, 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 180-200 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 250-280 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 EVA complex emulsions the polypropylene-base nonwoven material that to get product after drying completely.
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| CN201410827189.1A CN104594042A (en) | 2014-12-26 | 2014-12-26 | Aluminum-base hollow microbead-EVA composite emulsion-coating polypropylene-base nonwoven damping material for automobile interior decoration |
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| CN201410827189.1A CN104594042A (en) | 2014-12-26 | 2014-12-26 | Aluminum-base hollow microbead-EVA composite emulsion-coating polypropylene-base nonwoven damping material for automobile interior decoration |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133333A (en) * | 2015-09-17 | 2015-12-09 | 芜湖跃飞新型吸音材料股份有限公司 | Foamed magnesium-EVA composite emulsion-coated polypropylene-based non-woven sound absorbing material for automotive trim |
| CN105155270A (en) * | 2015-08-25 | 2015-12-16 | 安徽省中日农业环保科技有限公司 | Nano porous carbon-EVA emulsion coated polypropylene based nonwoven acoustic material for automotive interiors |
| CN105155271A (en) * | 2015-08-25 | 2015-12-16 | 安徽省中日农业环保科技有限公司 | Nano-nickel doped EVA composite emulsion coated polypropylene based nonwoven acoustic material for automotive interiors |
| CN105239362A (en) * | 2015-09-24 | 2016-01-13 | 安庆市花蕾纺织材料有限公司 | Antibacterial and anti-mite elastic composite sound-absorbing cotton and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155270A (en) * | 2015-08-25 | 2015-12-16 | 安徽省中日农业环保科技有限公司 | Nano porous carbon-EVA emulsion coated polypropylene based nonwoven acoustic material for automotive interiors |
| CN105155271A (en) * | 2015-08-25 | 2015-12-16 | 安徽省中日农业环保科技有限公司 | Nano-nickel doped EVA composite emulsion coated polypropylene based nonwoven acoustic material for automotive interiors |
| CN105133333A (en) * | 2015-09-17 | 2015-12-09 | 芜湖跃飞新型吸音材料股份有限公司 | Foamed magnesium-EVA composite emulsion-coated polypropylene-based non-woven sound absorbing material for automotive trim |
| CN105239362A (en) * | 2015-09-24 | 2016-01-13 | 安庆市花蕾纺织材料有限公司 | Antibacterial and anti-mite elastic composite sound-absorbing cotton and preparation method thereof |
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