CN104611930A - Elastic flame-retardant EVA emulsion coated polypropylene-based nonwoven sound-absorbing material applied to automotive interiors - Google Patents
Elastic flame-retardant EVA emulsion coated polypropylene-based nonwoven sound-absorbing material applied to automotive interiors Download PDFInfo
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- CN104611930A CN104611930A CN201410826455.9A CN201410826455A CN104611930A CN 104611930 A CN104611930 A CN 104611930A CN 201410826455 A CN201410826455 A CN 201410826455A CN 104611930 A CN104611930 A CN 104611930A
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- absorbing material
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Abstract
The invention relates to a nonwoven sound-absorbing material, in particular to an elastic flame-retardant EVA emulsion coated polypropylene-based nonwoven sound-absorbing material applied to automotive interiors. The material is prepared from the following raw materials in parts by weight: 10-15 parts of poly-1-butene, 20-25 parts of 325-400-mesh expanded perlite, 2-3 parts of rosin, 5-8 parts of polycaprolactam, 0.5-0.8 part of a silane coupling agent, 20-24 parts of polypropylene, 12-15 parts of an EVA emulsion with the solid content of 10-12%, 0.5-0.8 part of nano spherical ferroferric oxide powder, 0.1-0.2 part of an anti-oxidant 168, 0.4-0.6 part of ammonium polyphosphate and 1-2 parts of an additive. The sound-absorbing material provided by the invention is high in raw material utilization rate, light, environment-friendly, flexible and compact, and free of pollution to the automotive interior environment; the sound-absorbing material is a novel and practical automotive sound-absorbing 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 elastic flame EVA 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, a kind of novel non-woven sound-absorbing material of the coated polypropylene-base of EVA complex emulsions is provided, this material has larger specific area, in structure, comparatively traditional non-woven materials is more tight, noise reduction is obvious, and 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 automotive trim coated polypropylene-base of elastic flame EVA emulsion, is characterized in that: described sound-absorbing material is made up of the raw material of following weight portion: poly 1-butene 10-15,325-400 order expanded perlite 20-25, rosin 2-3, polycaprolactam 5-8, silane coupler 1-2, polypropylene 20-24, solid content are EVA emulsion 12-15, the nanometer spherical tri-iron tetroxide powder 0.5-0.8 of 10-12%, irgasfos 168 0.1-0.2, APP 0.4-0.6, 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.
The described non-woven sound-absorbing material of the coated polypropylene-base of a kind of automotive trim elastic flame EVA emulsion, its preparation method is as follows:
(1) first drop in EVA emulsion together by nanometer spherical tri-iron tetroxide powder, APP, auxiliary agent, ultrasonic process 30-40min, make material dispersed in emulsion, gained complex emulsions is for subsequent use;
(2) expanded perlite and silane coupler mixed grinding are disperseed 1-2h, gained material mixes with other leftover materials, stirs in rear input double screw extruder and melt extrude granulation at 160-180 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 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 and surface adhesiveness improve, there is good resilience, and EVA complex emulsions is after the coated solidification of fiber surface, the material wherein adulterated makes fiber surface roughness improve, and improves the specific area of material, reach more efficient absorbing sound and lowering noise effect, enhance the heatproof combustion resistance of material; Sound-absorbing material raw material availability prepared by the present invention is high, light-weight environment-friendly, pliable and toughly to compact, and not polluting environment inside car, is a kind of automobile-used sound-absorbing material of novel practical.
Detailed description of the invention
Embodiment
The non-woven sound-absorbing material of a kind of automotive trim coated polypropylene-base of elastic flame EVA emulsion, is characterized in that: described sound-absorbing material is made up of the raw material of following weight portion: poly 1-butene 14,400 order expanded perlite 24, rosin 3, polycaprolactam 6, silane coupler 1.5, polypropylene 24, solid content are EVA emulsion 14, nanometer spherical tri-iron tetroxide powder 0.6, irgasfos 168 0.2, APP 0.5, the auxiliary agent 1.5 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.
The non-woven sound-absorbing material of a kind of automotive trim coated polypropylene-base of elastic flame EVA emulsion, its preparation method is as follows:
(1) first drop in EVA emulsion together by nanometer spherical tri-iron tetroxide powder, APP, auxiliary agent, ultrasonic process 40min, make material dispersed in emulsion, gained complex emulsions is for subsequent use;
(2) expanded perlite and silane coupler mixed grinding are disperseed 1.8h, 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 195 DEG C in screw extruder, melt is the meltblown beam spinneret orifice ejection of 245 DEG C through temperature, and stretch under the high velocity, hot air stream effect of 275 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: 378g/m
-2; Longitudinal tensile strength (N. (5cm)
-1) be: 58.
Its sound absorption qualities test result is:
| Frequency of sound wave | 100Hz | 200Hz | 500Hz | 1KHz | 2KHz | 3KHz | 4KHz | 5KHz |
| Acoustic absorptivity | 0.05 | 0.10 | 0.12 | 0.32 | 0.54 | 0.70 | 0.83 | 0.88 |
Claims (2)
1. the non-woven sound-absorbing material of the coated polypropylene-base of automotive trim elastic flame EVA emulsion, is characterized in that: described sound-absorbing material is made up of the raw material of following weight portion: poly 1-butene 10-15,325-400 order expanded perlite 20-25, rosin 2-3, polycaprolactam 5-8, silane coupler 1-2, polypropylene 20-24, solid content are EVA emulsion 12-15, the nanometer spherical tri-iron tetroxide powder 0.5-0.8 of 10-12%, irgasfos 168 0.1-0.2, APP 0.4-0.6, 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. the non-woven sound-absorbing material of the coated polypropylene-base of a kind of automotive trim elastic flame EVA emulsion as claimed in claim 1, the preparation method of this material is as follows:
(1) first drop in EVA emulsion together by nanometer spherical tri-iron tetroxide powder, APP, auxiliary agent, ultrasonic process 30-40min, make material dispersed in emulsion, gained complex emulsions is for subsequent use;
(2) expanded perlite and silane coupler mixed grinding are disperseed 1-2h, gained material mixes with other leftover materials, stirs in rear input double screw extruder and melt extrude granulation at 160-180 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 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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410826455.9A CN104611930A (en) | 2014-12-26 | 2014-12-26 | Elastic flame-retardant EVA emulsion coated polypropylene-based nonwoven sound-absorbing material applied to automotive interiors |
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|---|---|---|---|
| CN201410826455.9A CN104611930A (en) | 2014-12-26 | 2014-12-26 | Elastic flame-retardant EVA emulsion coated polypropylene-based nonwoven sound-absorbing material applied to automotive interiors |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133332A (en) * | 2015-09-17 | 2015-12-09 | 芜湖跃飞新型吸音材料股份有限公司 | Health care EVA emulsion-coated polypropylene-based non-woven sound absorbing material for automotive trim |
| 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 |
| US10632936B2 (en) | 2017-05-11 | 2020-04-28 | Ford Global Technologies, Llc | Extrusion grade perlite reinforced polypropylene polymer |
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| CN102977531A (en) * | 2012-11-22 | 2013-03-20 | 芜湖跃飞新型吸音材料股份有限公司 | Expanded perlite modified composite sound absorbing material and preparation method thereof |
| CN103696132A (en) * | 2013-11-25 | 2014-04-02 | 芜湖跃飞新型吸音材料股份有限公司 | Active carbon noise-absorbing cotton and preparation method thereof |
| CN103726219A (en) * | 2013-11-25 | 2014-04-16 | 芜湖跃飞新型吸音材料股份有限公司 | Isotactic polypropylene/EVA resin composite non-woven fabric material for sound absorption cotton |
| CN103757819A (en) * | 2013-11-25 | 2014-04-30 | 芜湖跃飞新型吸音材料股份有限公司 | High-density polyethylene sound-absorbing cotton and preparation method thereof |
| CN103897262A (en) * | 2012-12-27 | 2014-07-02 | 浙江艾迪雅科技股份有限公司 | Low cost and high efficient soundproof material and manufacturing method thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102977531A (en) * | 2012-11-22 | 2013-03-20 | 芜湖跃飞新型吸音材料股份有限公司 | Expanded perlite modified composite sound absorbing material and preparation method thereof |
| CN103897262A (en) * | 2012-12-27 | 2014-07-02 | 浙江艾迪雅科技股份有限公司 | Low cost and high efficient soundproof material and manufacturing method thereof |
| CN103696132A (en) * | 2013-11-25 | 2014-04-02 | 芜湖跃飞新型吸音材料股份有限公司 | Active carbon noise-absorbing cotton and preparation method thereof |
| CN103726219A (en) * | 2013-11-25 | 2014-04-16 | 芜湖跃飞新型吸音材料股份有限公司 | Isotactic polypropylene/EVA resin composite non-woven fabric material for sound absorption cotton |
| CN103757819A (en) * | 2013-11-25 | 2014-04-30 | 芜湖跃飞新型吸音材料股份有限公司 | High-density polyethylene sound-absorbing cotton and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133332A (en) * | 2015-09-17 | 2015-12-09 | 芜湖跃飞新型吸音材料股份有限公司 | Health care EVA emulsion-coated polypropylene-based non-woven sound absorbing material for automotive trim |
| 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 |
| US10632936B2 (en) | 2017-05-11 | 2020-04-28 | Ford Global Technologies, Llc | Extrusion grade perlite reinforced polypropylene polymer |
| US11465570B2 (en) | 2017-05-11 | 2022-10-11 | Ford Global Technologies, Llc | Extrusion grade perlite reinforced polypropylene polymer |
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Application publication date: 20150513 |