CN105155276A - Bamboo charcoal powder-polyurethane composite emulsion coated polypropylene based nonwoven acoustic material for automotive interiors - Google Patents
Bamboo charcoal powder-polyurethane composite emulsion coated polypropylene based nonwoven acoustic material for automotive interiors Download PDFInfo
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- CN105155276A CN105155276A CN201510533142.9A CN201510533142A CN105155276A CN 105155276 A CN105155276 A CN 105155276A CN 201510533142 A CN201510533142 A CN 201510533142A CN 105155276 A CN105155276 A CN 105155276A
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Abstract
The invention relates to a bamboo charcoal powder-polyurethane composite emulsion coated polypropylene based nonwoven acoustic material for automotive interiors. The nonwoven acoustic material comprises, by weight, 1-2 parts of bamboo charcoal powder with fineness of 325-400 meshes, 22-26 parts of polypropylene, 1-2 parts of (3-Aminopropyl)triethoxysilane, 12-14 parts of poly butylenes succinate, 4-6 parts of polymethyl methacrylate, 1-2 parts of silane coupling agent, 20-24 parts of zeolite powder with fineness of 325-400 meshes, 0.4-0.6 part of nano iron oxide, 2-4 parts of polysulfone, 0.1-0.2 part of antioxidant 1076, 0.1-0.2 part of antioxidant DLTP, 0.2-0.3 part of dioctyldilauryltin, 15-18 parts of waterborne polyurethane latex with solid content of 8-10% and 1-2 parts of assistant. The nonwoven acoustic material is high in wave absorption capacity, remarkable in noise reduction effect, light, environmental friendly, antibacterial and antistatic, and is a novel practical acoustic material for cars.
Description
Technical field
The present invention relates to a kind of non-woven sound-absorbing material, be specifically related to a kind of automotive trim bamboo charcoal powder-non-woven sound-absorbing material of the coated polypropylene-base of polyurethane 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 polyurethane 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 bamboo charcoal powder-non-woven sound-absorbing material of the coated polypropylene-base of polyurethane complex emulsions, it is characterized in that: described sound-absorbing material is made up of the raw material of following weight portion: 325-400 order bamboo charcoal micropowder 1-2, polypropylene 22-26, APTES 1-2, poly butylene succinate 12-14, polymethyl methacrylate 4-6, silane coupler 1-2, 325-400 order zeolite powder 20-24, nano-sized iron oxide 0.4-0.6, polysulfones 2-4, antioxidant 1076 0.1-0.2, anti-oxidant DLTP 0.1-0.2, Bis(lauroyloxy)dioctyltin 0.2-0.3, solid content is the aqueous polyurethane emulsion 15-18 of 8-10%, auxiliary agent 1-2,
Described auxiliary agent is made up of the raw material of following weight portion: 400-500 order fine hair powder 1-2, lauryl sodium sulfate 0.5-0.6, propylene glycol 3-5, solid content are aerosil colloidal sol 4-5, nano-nickel oxide 0.6-0.8, the water 10-12 of 15-20%, preparation method is: first drop in water by propylene glycol, lauryl sodium sulfate, be stirred to after material dissolves dispersion completely, add other leftover materials again, high-speed stirred is dispersed in the solution to fine hair powder, nano-nickel oxide, obtains the composite modified auxiliary agent of polyaminoester emulsion.
Described a kind of automotive trim bamboo charcoal powder-non-woven sound-absorbing material of the coated polypropylene-base of polyurethane complex emulsions, its preparation method is as follows:
(1) first bamboo charcoal micropowder, nano-sized iron oxide, auxiliary agent are dropped into together in aqueous polyurethane emulsion, ultrasonic process 40-50min, make material dispersed in emulsion, gained complex emulsions is for subsequent use;
(2) zeolite 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 170-180 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 polyurethane 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-resisting weather-proof, more easily degrade, and the polyurethane complex emulsions of preparation is after the coated solidification of fiber surface, the porous material wherein adulterated makes fibre web surface ratio expanded surface area, wave-sucking performance strengthens, and noise reduction is obvious; Sound-absorbing material light weight environmental protection prepared by the present invention, antibiotic antistatic, and energy purifying vehicle environment are a kind of automobile-used sound-absorbing materials of novel practical.
Detailed description of the invention
Embodiment
A kind of automotive trim bamboo charcoal powder-non-woven sound-absorbing material of the coated polypropylene-base of polyurethane complex emulsions, is characterized in that: described sound-absorbing material is made up of the raw material of following weight portion: 400 order bamboo charcoal micropowder 1.5, polypropylene 26, APTES 2, poly butylene succinate 12, polymethyl methacrylate 6, silane coupler 2,325 order zeolite powder 22, nano-sized iron oxide 0.5, polysulfones 3, antioxidant 1076 0.1, anti-oxidant DLTP 0.2, Bis(lauroyloxy)dioctyltin 0.3, solid content are aqueous polyurethane emulsion 15, the auxiliary agent 1.5 of 10%;
Wherein auxiliary agent is made up of the raw material of following weight portion: 500 order fine hair powder 2, lauryl sodium sulfate 0.6, propylene glycol 5, solid content are aerosil colloidal sol 4, nano-nickel oxide 0.7, the water 12 of 20%, preparation method is: first drop in water by propylene glycol, lauryl sodium sulfate, be stirred to after material dissolves dispersion completely, add other leftover materials again, high-speed stirred is dispersed in the solution to fine hair powder, nano-nickel oxide, obtains the composite modified auxiliary agent of polyaminoester emulsion.
A kind of automotive trim bamboo charcoal powder-non-woven sound-absorbing material of the coated polypropylene-base of polyurethane complex emulsions, its preparation method is as follows:
(1) first bamboo charcoal micropowder, nano-sized iron oxide, auxiliary agent are dropped into together in aqueous polyurethane emulsion, ultrasonic process 45min, make material dispersed in emulsion, gained complex emulsions is for subsequent use;
(2) zeolite powder 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 190 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 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 polyurethane 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: 364.3g/m
-2; Longitudinal tensile strength (N. (5cm)
-1) be: 53.6.
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 | 0.08 | 0.38 | 0.52 | 0.76 | 0.84 | 0.89 |
Claims (2)
1. automotive trim bamboo charcoal powder-non-woven sound-absorbing material of the coated polypropylene-base of polyurethane complex emulsions, it is characterized in that: described sound-absorbing material is made up of the raw material of following weight portion: 325-400 order bamboo charcoal micropowder 1-2, polypropylene 22-26, APTES 1-2, poly butylene succinate 12-14, polymethyl methacrylate 4-6, silane coupler 1-2, 325-400 order zeolite powder 20-24, nano-sized iron oxide 0.4-0.6, polysulfones 2-4, antioxidant 1076 0.1-0.2, anti-oxidant DLTP 0.1-0.2, Bis(lauroyloxy)dioctyltin 0.2-0.3, solid content is the aqueous polyurethane emulsion 15-18 of 8-10%, auxiliary agent 1-2,
Described auxiliary agent is made up of the raw material of following weight portion: 400-500 order fine hair powder 1-2, lauryl sodium sulfate 0.5-0.6, propylene glycol 3-5, solid content are aerosil colloidal sol 4-5, nano-nickel oxide 0.6-0.8, the water 10-12 of 15-20%, preparation method is: first drop in water by propylene glycol, lauryl sodium sulfate, be stirred to after material dissolves dispersion completely, add other leftover materials again, high-speed stirred is dispersed in the solution to fine hair powder, nano-nickel oxide, obtains the composite modified auxiliary agent of polyaminoester emulsion.
2. a kind of automotive trim bamboo charcoal powder-non-woven sound-absorbing material of the coated polypropylene-base of polyurethane complex emulsions as claimed in claim 1, the preparation method of this material is as follows:
(1) first bamboo charcoal micropowder, nano-sized iron oxide, auxiliary agent are dropped into together in aqueous polyurethane emulsion, ultrasonic process 40-50min, make material dispersed in emulsion, gained complex emulsions is for subsequent use;
(2) zeolite 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 170-180 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 polyurethane 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 |
|---|---|---|---|
| CN201510533142.9A CN105155276A (en) | 2015-08-25 | 2015-08-25 | Bamboo charcoal powder-polyurethane composite emulsion coated polypropylene based nonwoven acoustic material for automotive interiors |
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| CN201510533142.9A CN105155276A (en) | 2015-08-25 | 2015-08-25 | Bamboo charcoal powder-polyurethane composite emulsion coated polypropylene based nonwoven acoustic material for automotive interiors |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525437A (en) * | 2016-01-26 | 2016-04-27 | 芜湖环瑞汽车内饰件有限公司 | Corrosion-resistant and aging-resistant sound-absorbing cotton and preparation method thereof |
| CN107083047A (en) * | 2017-06-29 | 2017-08-22 | 苏州夸克新材料科技有限公司 | A kind of preparation method of microsphere of zeolite sound-absorbing material |
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| CN104562450A (en) * | 2015-01-05 | 2015-04-29 | 芜湖环瑞汽车内饰件有限公司 | Graphene oxide-polyurethane composite emulsion wrapped polypropylene nonwoven acoustic absorbing material for inner decoration of automobile |
| CN104553172A (en) * | 2015-01-05 | 2015-04-29 | 芜湖环瑞汽车内饰件有限公司 | Activated carbon-EVA composite emulsion coated polypropylene-based non-woven sound absorbing material for automobile interior decoration |
| CN104562448A (en) * | 2015-01-05 | 2015-04-29 | 芜湖环瑞汽车内饰件有限公司 | Multi-walled carbon nanotube-polyurethane composite emulsion wrapped polypropylene nonwoven acoustic absorbing material for inner decoration of automobile |
| CN104562700A (en) * | 2015-01-05 | 2015-04-29 | 芜湖环瑞汽车内饰件有限公司 | Zirconia-polyurethane composite emulsion coated polypropylene nonwoven sound-absorbing material for automotive trim |
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- 2015-08-25 CN CN201510533142.9A patent/CN105155276A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104562450A (en) * | 2015-01-05 | 2015-04-29 | 芜湖环瑞汽车内饰件有限公司 | Graphene oxide-polyurethane composite emulsion wrapped polypropylene nonwoven acoustic absorbing material for inner decoration of automobile |
| CN104553172A (en) * | 2015-01-05 | 2015-04-29 | 芜湖环瑞汽车内饰件有限公司 | Activated carbon-EVA composite emulsion coated polypropylene-based non-woven sound absorbing material for automobile interior decoration |
| CN104562448A (en) * | 2015-01-05 | 2015-04-29 | 芜湖环瑞汽车内饰件有限公司 | Multi-walled carbon nanotube-polyurethane composite emulsion wrapped polypropylene nonwoven acoustic absorbing material for inner decoration of automobile |
| CN104562700A (en) * | 2015-01-05 | 2015-04-29 | 芜湖环瑞汽车内饰件有限公司 | Zirconia-polyurethane composite emulsion coated polypropylene nonwoven sound-absorbing material for automotive trim |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105525437A (en) * | 2016-01-26 | 2016-04-27 | 芜湖环瑞汽车内饰件有限公司 | Corrosion-resistant and aging-resistant sound-absorbing cotton and preparation method thereof |
| CN107083047A (en) * | 2017-06-29 | 2017-08-22 | 苏州夸克新材料科技有限公司 | A kind of preparation method of microsphere of zeolite sound-absorbing material |
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Application publication date: 20151216 |