CN104727146A - Nano chitosan-styrene-acrylic composite emulsion-coated polypropylene nonwoven sound-absorbing material for automotive interiors - Google Patents
Nano chitosan-styrene-acrylic composite emulsion-coated polypropylene nonwoven sound-absorbing material for automotive interiors Download PDFInfo
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- CN104727146A CN104727146A CN201510111244.1A CN201510111244A CN104727146A CN 104727146 A CN104727146 A CN 104727146A CN 201510111244 A CN201510111244 A CN 201510111244A CN 104727146 A CN104727146 A CN 104727146A
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Abstract
The invention relates to a nonwoven sound-absorbing material, in particular to a nano chitosan-styrene-acrylic composite emulsion-coated polypropylene nonwoven sound-absorbing material for automotive interiors. The nano chitosan-styrene-acrylic composite emulsion-coated polypropylene nonwoven sound-absorbing material is prepared from the following raw materials in parts by weight: 23-26 parts of polypropylene, 3-5 parts of fluoro-siloxane resin, 0.1-0.2 part of nano chitosan, 3-5 parts of 325-400mesh calcium chloride, 3-5 parts of oxidized starch, 2-3 parts of ethylene glycol dimethacrylate, 10-14 parts of high-density polyethylene, 10-14 parts of 400-600mesh colloidal graphite powder, 2-3 parts of a silane coupling agent kh550, 1-2 parts of an antioxidant 1010, 1-2 parts of nanometer silicon, 12-15 parts of a styrene-acrylic emulsion with the solid content being 8%-10%, and 1-2 parts of an assistant. The sound-absorbing material provided by the invention is nontoxic, tasteless, dustproof, breathable, and easy to recycle and degrade, and is a novel 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 Nano chitosan-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 Nano chitosan-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 23-26, fluorine silicon resin 3-5, Nano chitosan 0.1-0.2, 325-400 order calcium chloride 3-5, oxidized starch 3-5, ethylene glycol dimethacrylate 2-3, high density polyethylene (HDPE) 10-14, 400-600 order aquadag powder 10-14, silane coupler kh550 2-3, antioxidant 1010 1-2, nano-silicon 1-2, solid content is the benzene emulsion 12-15 of 8-10%, 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 Nano chitosan-styrene-acrylic composite emulsion, its preparation method is as follows:
(1) first Nano chitosan, 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) calcium chloride, aquadag 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 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 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 and institutional framework change, thermal conductivity and plasticity improve, obtained fiber is pliable and tough wear-resistant, and styrene-acrylic composite emulsion is after the coated solidification of fiber surface, the minute yardstick material wherein adulterated makes pulp freeness promote, to absorption and the conversion capability reinforcement of sound wave, noise reduction is remarkable, prevents the generation of electrostatic greatly; Sound-absorbing material prepared by the present invention is nonpoisonous and tasteless, dust-proof air ventilation, is easy to reclaim degraded simultaneously, 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 coated polypropylene-base of automotive trim Nano chitosan-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, fluorine silicon resin 3, Nano chitosan 0.2,325 order calcium chloride 4, oxidized starch 5, ethylene glycol dimethacrylate 3, high density polyethylene (HDPE) 14,600 order aquadag powder 12, silane coupler kh550 3, antioxidant 1010 1.5, nano-silicon 2, solid content are benzene emulsion 13, the auxiliary agent 1.5 of 10%;
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 Nano chitosan-styrene-acrylic composite emulsion, its preparation method is as follows:
(1) first Nano chitosan, nano-silicon, auxiliary agent are dropped into together in benzene emulsion, ultrasonic process 60min, makes material dispersed in emulsion, obtains styrene-acrylic composite emulsion for subsequent use;
(2) calcium chloride, aquadag powder and silane coupler kh550 mixed grinding are disperseed 2.8h, gained material mixes with other leftover materials, stir in rear input double screw extruder and melt extrude granulation at 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 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 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 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: 356.8g/m
-2; Longitudinal tensile strength (N. (5cm)
-1) be: 64.2.
Its sound absorption qualities test result is:
| Frequency of sound wave | 100Hz | 200Hz | 500Hz | 1KHz | 2KHz | 3KHz | 4KHz | 5KHz |
| Acoustic absorptivity | 0.03 | 0.06 | 0.15 | 0.33 | 0.56 | 0.78 | 0.88 | 0.85 |
Claims (2)
1. the non-woven sound-absorbing material of the coated polypropylene-base of automotive trim Nano chitosan-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 23-26, fluorine silicon resin 3-5, Nano chitosan 0.1-0.2, 325-400 order calcium chloride 3-5, oxidized starch 3-5, ethylene glycol dimethacrylate 2-3, high density polyethylene (HDPE) 10-14, 400-600 order aquadag powder 10-14, silane coupler kh550 2-3, antioxidant 1010 1-2, nano-silicon 1-2, solid content is the benzene emulsion 12-15 of 8-10%, 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 Nano chitosan-styrene-acrylic composite emulsion as claimed in claim 1, the preparation method of this material is as follows:
(1) first Nano chitosan, 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) calcium chloride, aquadag 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 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 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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| CN201510111244.1A CN104727146A (en) | 2015-03-16 | 2015-03-16 | Nano chitosan-styrene-acrylic composite emulsion-coated polypropylene nonwoven sound-absorbing material for automotive interiors |
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| CN201510111244.1A CN104727146A (en) | 2015-03-16 | 2015-03-16 | Nano chitosan-styrene-acrylic composite emulsion-coated polypropylene nonwoven sound-absorbing material for automotive interiors |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838866A (en) * | 2012-10-16 | 2012-12-26 | 广东三凯新材料股份有限公司 | Polyurethane and polypropylene nano modified material |
| CN103710860A (en) * | 2013-11-25 | 2014-04-09 | 芜湖跃飞新型吸音材料股份有限公司 | Palygorskite-containing nonwoven material for sound absorbing 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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2015
- 2015-03-16 CN CN201510111244.1A patent/CN104727146A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838866A (en) * | 2012-10-16 | 2012-12-26 | 广东三凯新材料股份有限公司 | Polyurethane and polypropylene nano modified material |
| 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 |
| CN103710860A (en) * | 2013-11-25 | 2014-04-09 | 芜湖跃飞新型吸音材料股份有限公司 | Palygorskite-containing nonwoven material for sound absorbing 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 |
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