CN105133332A - Health care EVA emulsion-coated polypropylene-based non-woven sound absorbing material for automotive trim - Google Patents
Health care EVA emulsion-coated polypropylene-based non-woven sound absorbing material for automotive trim Download PDFInfo
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- CN105133332A CN105133332A CN201510594086.XA CN201510594086A CN105133332A CN 105133332 A CN105133332 A CN 105133332A CN 201510594086 A CN201510594086 A CN 201510594086A CN 105133332 A CN105133332 A CN 105133332A
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Abstract
The invention discloses a health care EVA emulsion-coated polypropylene-based non-woven sound absorbing material for automotive trim, and relates to the non-woven sound absorbing material. The non-woven sound absorbing material is prepared from the following raw materials in parts by weight: 2-3 parts of PE, 12-15 parts of nylon 12, 20-25 parts of polypropylene, 1-3 parts of rosin, 18-24 parts of silicon dioxide powder with the mesh of 325-400, 0.3-0.5 part of nanometer negative ion powder, 0.5-0.8 part of nano aluminum powder, 0.1-0.2 part of zinc stearate, 0.1-0.2 part of an antioxidant DLTP, 1-2 parts of a silane coupling agent, 0.1-0.2 part of ammonium polyphosphate, 15-18 parts of an EVA emulsion with the solid content of 10-12% and 1-2 parts of an assistant. According to the health care EVA emulsion-coated polypropylene-based non-woven sound absorbing material for automotive trim, the surface of cellosilk prepared through melt-blowing a modified polypropylene-based master batch is coated with the EVA composite emulsion, and the prepared material has the advantages of traditional polypropylene non-woven materials, and can generate negative ions and purify the environment in an automobile; the material is light, environment-friendly, flexible, compact, fire-resistant and flame retardant, and is a novel and practical sound-absorbing material for automobiles.
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 health 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, 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:
The non-woven sound-absorbing material of a kind of automotive trim health coated polypropylene-base of EVA emulsion, is characterized in that: described sound-absorbing material is made up of the raw material of following weight portion: PE wax 2-3, nylon 1212-15, polypropylene 20-25, rosin 1-3,325-400 order silicon dioxide powder 18-24, nanometer anion powder 0.3-0.5, nanometer aluminium powder 0.5-0.8, zinc stearate 0.1-0.2, anti-oxidant DLTP 0.1-0.2, silane coupler 1-2, APP 0.1-0.2, solid content are EVA emulsion 15-18, the auxiliary agent 1-2 of 10-12%;
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 health EVA emulsion, its preparation method is as follows:
(1) first drop in EVA emulsion together by nanometer anion powder, nanometer aluminium powder, APP, auxiliary agent, ultrasonic process 30-40min, makes material dispersed in emulsion, and obtained EVA complex emulsions is for subsequent use;
(2) silicon dioxide powder and silane coupler mixed grinding are disperseed 1.5-2h, gained material mixes with other leftover materials, stirs in rear input double screw extruder and melt extrude granulation at 180-190 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 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 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 wettability improve, toughness improves, ageing-resistant, and the EVA complex emulsions of preparation is after the coated solidification of fiber surface, the material wherein adulterated is attached to the specific area that filament surface effectively raises material, accelerate the thermal transition of sound wave, noise reduction is obvious, also improve filametntary intensity and fire retardancy simultaneously, and can to the Environment release anion useful to human body, improve environment inside car, sound-absorbing material light-weight environment-friendly prepared by the present invention, pliable and toughly to compact, purifying vehicle environment 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 health coated polypropylene-base of EVA emulsion, is characterized in that: described sound-absorbing material is made up of the raw material of following weight portion: PE wax 2, nylon 1214, polipropene 25, rosin 2,400 order silicon dioxide powder 20, nanometer anion powder 0.4, nanometer aluminium powder 0.6, zinc stearate 0.1, anti-oxidant DLTP 0.1, silane coupler 1.5, APP 0.2, solid content are EVA emulsion 16, the auxiliary agent 2 of 10%;
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 health coated polypropylene-base of EVA emulsion, its preparation method is as follows:
(1) first drop in EVA emulsion together by nanometer anion powder, nanometer aluminium powder, APP, auxiliary agent, ultrasonic process 35min, makes material dispersed in emulsion, and obtained EVA complex emulsions is for subsequent use;
(2) silicon dioxide powder 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 190 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 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: 371g/m
-2; Longitudinal tensile strength (N. (5cm)
-1) be: 64.
Its sound absorption qualities test result is:
| Frequency of sound wave | 100Hz | 200Hz | 500Hz | 1KHz | 2KHz | 3KHz | 4KHz | 5KHz |
| Acoustic absorptivity | 0.06 | 0.09 | 0.13 | 0.34 | 0.56 | 0.74 | 0.85 | 0.90 |
Claims (2)
1. the non-woven sound-absorbing material of the coated polypropylene-base of automotive trim health EVA emulsion, is characterized in that: described sound-absorbing material is made up of the raw material of following weight portion: PE wax 2-3, nylon 1212-15, polypropylene 20-25, rosin 1-3,325-400 order silicon dioxide powder 18-24, nanometer anion powder 0.3-0.5, nanometer aluminium powder 0.5-0.8, zinc stearate 0.1-0.2, anti-oxidant DLTP 0.1-0.2, silane coupler 1-2, APP 0.1-0.2, solid content are EVA emulsion 15-18, the auxiliary agent 1-2 of 10-12%;
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 health 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 anion powder, nanometer aluminium powder, APP, auxiliary agent, ultrasonic process 30-40min, makes material dispersed in emulsion, and obtained EVA complex emulsions is for subsequent use;
(2) silicon dioxide powder and silane coupler mixed grinding are disperseed 1.5-2h, gained material mixes with other leftover materials, stirs in rear input double screw extruder and melt extrude granulation at 180-190 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 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 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 |
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| CN201510594086.XA CN105133332A (en) | 2015-09-17 | 2015-09-17 | Health care EVA emulsion-coated polypropylene-based non-woven sound absorbing material for automotive trim |
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| CN201510594086.XA CN105133332A (en) | 2015-09-17 | 2015-09-17 | Health care EVA emulsion-coated polypropylene-based non-woven sound absorbing material for automotive trim |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106188650A (en) * | 2016-07-11 | 2016-12-07 | 苏州锐特捷化工制品有限公司 | A kind of macromolecule composite graphite alkene anti-haze fibre bundle and production method thereof |
| CN106188651A (en) * | 2016-07-11 | 2016-12-07 | 苏州锐特捷化工制品有限公司 | A kind of ethylene vinyl acetate copolymer is except haze material and production method thereof |
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| CN104562445A (en) * | 2015-01-05 | 2015-04-29 | 芜湖环瑞汽车内饰件有限公司 | Carbonyl iron powder-EVA composite emulsion wrapped polypropylene nonwoven acoustic absorbing material for inner decoration of automobile |
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| CN104746334A (en) * | 2015-03-14 | 2015-07-01 | 芜湖众力部件有限公司 | Polypropylene-based non-woven sound absorption material coated with medical stone and styrene-acrylate composite emulsion for automotive interior decoration |
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- 2015-09-17 CN CN201510594086.XA patent/CN105133332A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102408830A (en) * | 2011-10-17 | 2012-04-11 | 青岛爱尔家佳新材料有限公司 | Multifunctional environment-friendly building coating and preparation method thereof |
| CN104611929A (en) * | 2014-12-26 | 2015-05-13 | 安徽省中日农业环保科技有限公司 | EVA-bamboo fiber composite emulsion coated polypropylene-based nonwoven sound-absorbing material applied to automotive interiors |
| CN104611930A (en) * | 2014-12-26 | 2015-05-13 | 安徽省中日农业环保科技有限公司 | Elastic flame-retardant EVA emulsion coated polypropylene-based nonwoven sound-absorbing material applied to automotive interiors |
| CN104562445A (en) * | 2015-01-05 | 2015-04-29 | 芜湖环瑞汽车内饰件有限公司 | Carbonyl iron powder-EVA composite emulsion wrapped polypropylene nonwoven acoustic absorbing material for inner decoration of automobile |
| CN104746334A (en) * | 2015-03-14 | 2015-07-01 | 芜湖众力部件有限公司 | Polypropylene-based non-woven sound absorption material coated with medical stone and styrene-acrylate composite emulsion for automotive interior decoration |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106188650A (en) * | 2016-07-11 | 2016-12-07 | 苏州锐特捷化工制品有限公司 | A kind of macromolecule composite graphite alkene anti-haze fibre bundle and production method thereof |
| CN106188651A (en) * | 2016-07-11 | 2016-12-07 | 苏州锐特捷化工制品有限公司 | A kind of ethylene vinyl acetate copolymer is except haze material and production method thereof |
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Application publication date: 20151209 |
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