CN105255121A - Recycled polyester fiber laminated slice and preparation method thereof - Google Patents
Recycled polyester fiber laminated slice and preparation method thereof Download PDFInfo
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- CN105255121A CN105255121A CN201510609878.XA CN201510609878A CN105255121A CN 105255121 A CN105255121 A CN 105255121A CN 201510609878 A CN201510609878 A CN 201510609878A CN 105255121 A CN105255121 A CN 105255121A
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Abstract
The invention discloses a recycled polyester fiber laminated slice. The slice comprises at least 3 fiber layers, the densities of the at least 3 fiber layers successively decrease with the thickness direction of the slice, and the fiber layers are a compact layer, a semi-compact layer and a fluffy layer respectively. A preparation method of the slice comprises the following steps: recovering scrapped polyester fiber products, cleaning, and dehydrating; processing the polyester fiber products to form short fibers, and drying and sterilizing; mixing low density polyethylene LDPE hot melt powder with an aluminum hydroxide flame retardation pulvis in proportion, and uniformly spraying the short fibers with the obtained mixture; and lapping, and controlling the hot pressing pressure and temperature after lapping to make net layers form the above structure comprising the compact layer, the semi-compact layer and the fluffy layer with the densities decreasing with the thickness direction in order to prepare the recycled polyester fiber laminated slice. The recycled polyester fiber laminated slice is prepared in the above mode, so polyester fiber cotton is recycled, environmental pollution is reduced, and resources and energy are saved; and the recycled polyester fiber laminated slice can reduce noises in automobile rooms, and improves the automobile driving comfortableness.
Description
Technical field
The present invention relates to automobile acoustical absorption soundproofing field, particularly relate to and be a kind ofly applied in Regenerated Polyester Fibres laminated foil of truck, car room and automotive upholstery aspect and preparation method thereof.
Background technology
China is the big country of automobile making and consumption, and the motor vehicle liquidation standard of China is repeatedly revised, " automobile forced Rejection standard regulation " that in May, 2013 is issued by Department of Commerce, has done relevant defining to the Rejection standard of various motor vehicle and the time limit.All in all, the year of motor vehicle liquidation is limited to 10-15, this and external situation also basic simlarity.According to external mature market experience, annual abandoned car accounts for the level that automobile pollution is in 5-7%, and we press 3%-5%, the conservative estimation of 1.54 hundred million automobile pollutions in 2014, and we estimate that current annual motor vehicle liquidation amount is 462-770 ten thousand.Abandoned car can obtain a large amount of renewable resource after disassembling, the inside gadget of abandoned car as: the goods such as the cotton sound-absorbing sound insulation of the trevira such as PE, PET are difficult to degrade in a short time, for avoiding environmental pollution, the trevira goods recycling reclaimed after utilizing motor vehicle liquidation; Trevira goods are difficult to degraded in a short time at nature, arbitrarily abandon meeting influence ecological environment, as burned these rubber-plastics materials, and can pollutant atmosphere.
Prior art has employing, and other make sound-absorbing acoustic insulation products, such as glass wool, rock wool, sponge, polystyrene perlites etc., although they can solve the sound insulation problem in our space, but in our life, potential safety hazard has been buried, such as glass wool, rock wool, it can cause skin pruritus, respiratory tract anaphylaxis.Sponges etc. are inflammable products, and can produce toxic gas in combustion.A large amount of use pitch damping vibration attenuation backing plate in current automobile, soundproof effect is poor, causes in automobile and has peculiar smell, and some vehicle tastes are unpleasant.Dizzy uncomfortable after permanent, affect running driving safety.
Current truck driver room is in order to vibration and noise reducing, and have employed mechanical spring and air spring vibration reduction technology, the ride comfort of automobile makes moderate progress, but because there being comparatively high-decibel noise to import in car, cause the noise in car and effectiveness in vibration suppression general.
A large amount of use pitch damping vibration attenuation backing plate or sheet plastic sound insulation in current automobile, soundproof effect is poor, causes in automobile and has peculiar smell, and some vehicle tastes are unpleasant.Drive permanent rear dizzy uncomfortable, affect running driving safety.
Summary of the invention
The technical problem that the present invention mainly solves is to provide one can reduce environmental pollution by its trevira cotton of cycling and reutilization, economizes on resources and the energy; The noise of car room can be reduced again, improve Regenerated Polyester Fibres laminated foil of the comfortableness that automobile is driven and preparation method thereof.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of Regenerated Polyester Fibres laminated foil, comprise at least 3 layers of layer of fibers, layer of fibers density is successively decreased along sheet thickness direction, is respectively fixed layer, half fixed layer and loft layer.
For solving the problems of the technologies described above, another technical solution used in the present invention is: the preparation method providing a kind of Regenerated Polyester Fibres laminated foil, comprises the following steps:
1) reclaim the trevira goods scrapped, clean and dewater;
2) trevira goods are processed into staple fibre shape, and carry out oven dry sterilization;
3) low density polyethylene thermal fusing powder and aluminium hydroxide flame-retardant pulvis are proportionally mixed, and be evenly sprayed on staple fibre;
4) carry out lapping, control pressure and the temperature level of hot pressing after lapping, make stratum reticulare form at thickness direction the structure that fixed layer, half fixed layer and loft layer density successively decreases, i.e. obtained Regenerated Polyester Fibres laminated foil.
In a preferred embodiment of the present invention, the trevira goods scrapped in step 1) are the inside gadgets utilizing abandoned car, comprise the cotton sound-absorbing acoustic insulation products of PE, PET trevira.
In a preferred embodiment of the present invention, step 2) in adopt opening that trevira goods are processed into staple fibre shape.
In a preferred embodiment of the present invention, step 2) in dry sterilization temperature be 70 DEG C ~ 100 DEG C.
In a preferred embodiment of the present invention, the weight percent of the LDPE thermal fusing powder of sprinkling is 5% ~ 8%, and the weight percent of aluminium hydroxide flame-retardant pulvis is 5% ~ 8%.
The invention has the beneficial effects as follows: the present invention can reduce environmental pollution by its trevira cotton of cycling and reutilization, economizes on resources and the energy; The noise of car room can be reduced again, improve the comfortableness that automobile is driven, this Regenerated Polyester Fibres laminate is harmless to people, meet the requirement of automotive upholstery, improve the comfortableness that automobile is driven to greatest extent, eliminate the peculiar smell sent because of pitch damping affect the mood that automobile drives and be tired of that grasping the driving accident brought occurs, raising travel safety.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of Regenerated Polyester Fibres laminated foil one of the present invention preferred embodiment;
In accompanying drawing, the mark of each parts is as follows: 1, fixed layer, 2, half fixed layer, and 3, loft layer.
Embodiment
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, the embodiment of the present invention comprises:
A kind of Regenerated Polyester Fibres laminated foil, comprise at least 3 layers of layer of fibers, layer of fibers density is successively decreased along sheet thickness direction, is respectively fixed layer 1, half fixed layer 2 and loft layer 3.
Each layer of fibers is pressure by controlling hot pressing after lapping and temperature level, form the Regenerated Polyester Fibres laminate of the three-dimensional composition that stratum reticulare is successively decreased by fixed layer 1, half fixed layer 2 and loft layer 3 density at thickness direction, and to ensure that 3 layers link together, not stratified, the fire-retardant and sound-absorbing soundproof effect of Regenerated Polyester Fibres laminate cycling and reutilization, environmentally friendly to people.
The shape and structure of Regenerated Polyester Fibres laminated foil, sheet thickness and area are not limit.Be particularly useful for automobile, the automobile room of truck and the application of automotive upholstery damping vibration attenuation aspect.
Embodiment 1:
The preparation method of Regenerated Polyester Fibres laminated foil of the present invention, comprises the following steps:
1) reclaim the trevira goods scrapped, clean and dewater; The trevira goods scrapped are the inside gadgets utilizing abandoned car, comprise the cotton sound-absorbing acoustic insulation products of PE, PET trevira.
2) by opening, trevira goods are processed into staple fibre shape, and carry out oven dry sterilization, the temperature of drying sterilization is 70 DEG C.
3) be 5% low density polyethylene thermal fusing powder and weight percent by weight percent be that 5% aluminium hydroxide flame-retardant pulvis proportionally mixes, and be evenly sprayed on staple fibre; PE thermal fusing powder is bonding for fiber grain integral, and aluminium-hydroxide powder plays fire-retardant effect.
4) carry out lapping, the pressure of hot pressing after control lapping and temperature level, make the structure that stratum reticulare successively decreases at thickness direction formation fixed layer 1, half fixed layer 2 and loft layer 3 density, be i.e. obtained Regenerated Polyester Fibres laminated foil.
Embodiment 2:
The preparation method of Regenerated Polyester Fibres laminated foil of the present invention, comprises the following steps:
1) reclaim the trevira goods scrapped, clean and dewater; The trevira goods scrapped are the inside gadgets utilizing abandoned car, comprise the cotton sound-absorbing acoustic insulation products of the trevira such as PE, PET.
2) by opening, trevira goods are processed into staple fibre shape, and carry out oven dry sterilization, the temperature of drying sterilization is 85 DEG C.
3) be 6.5% low density polyethylene thermal fusing powder and weight percent by weight percent be that 6.5% aluminium hydroxide flame-retardant pulvis proportionally mixes, and be evenly sprayed on staple fibre; PE thermal fusing powder is bonding for fiber grain integral, and aluminium-hydroxide powder plays fire-retardant effect.
4) carry out lapping, the pressure of hot pressing after control lapping and temperature level, make the structure that stratum reticulare successively decreases at thickness direction formation fixed layer 1, half fixed layer 2 and loft layer 3 density, be i.e. obtained Regenerated Polyester Fibres laminated foil.
Embodiment 3:
The preparation method of Regenerated Polyester Fibres laminated foil of the present invention, comprises the following steps:
1) reclaim the trevira goods scrapped, clean and dewater; The trevira goods scrapped are the inside gadgets utilizing abandoned car, comprise the cotton sound-absorbing acoustic insulation products of PE, PET trevira.
2) by opening, trevira goods are processed into staple fibre shape, and carry out oven dry sterilization, the temperature of drying sterilization is 100 DEG C.
3) be 8% low density polyethylene thermal fusing powder and weight percent by weight percent be that 8% aluminium hydroxide flame-retardant pulvis proportionally mixes, and be evenly sprayed on staple fibre; PE thermal fusing powder is bonding for fiber grain integral, and aluminium-hydroxide powder plays fire-retardant effect.
4) carry out lapping, the pressure of hot pressing after control lapping and temperature level, make the structure that stratum reticulare successively decreases at thickness direction formation fixed layer 1, half fixed layer 2 and loft layer 3 density, be i.e. obtained Regenerated Polyester Fibres laminated foil.
PE, the goods such as the cotton sound-absorbing sound insulation of the trevira such as PET are difficult to degrade in a short time, for avoiding environmental pollution, the trevira goods reclaimed after utilizing motor vehicle liquidation, by shredding after its cleaning and dewatering, after hyperthermia drying sterilization, with thermal fusing powder in proportion powder spraying stirring mix lapping, by pressure and the temperature level of hot pressing after control lapping, form stratum reticulare in thickness direction density by fixed layer, the Regenerated Polyester Fibres laminate of the three-dimensional composition that half fixed layer and loft layer density are successively decreased, this sheet material layers cementing is firm, not easily layering, and there is the requirement meeting automotive upholstery flame-retarding characteristic, this Regenerated Polyester Fibres laminate is to low frequency, the noise such as intermediate frequency and high frequency has outstanding sound-absorbing soundproof effect, just Regenerated Polyester Fibres laminated foil is produced through above-mentioned technological process, this technical field is the cycling and reutilization technology of macromolecular material.
Regenerated Polyester Fibres laminated foil is because it is lightweight, damped elasticity is good, fire-retardant, and sound-absorbing sound-proofing properties is effective, and environment-protective no-smell can be used in automotive upholstery in a large number, plays significantly sound-absorbing sound insulation vibration damping and the effect reduced costs.
Sound-absorbing mainly will solve the reflection of sound and the noisy sense produced, and sound absorbent material can the reflected energy of attenuate incident source of sound, thus reaches the attenuating to original sound source.Sound insulation mainly solves the transmission of sound and makes main body in space, feel noisy sense, and Sound-proof material material can the transmission potential of attenuate incident source of sound, thus reaches the rest state of principal space.
Regenerated Polyester Fibres laminate sound absorbing mechanism is that noise reflection can be returned outside atmosphere partial noise energy by the fixed layer that density is larger, propagation attenuation in only have partial noise energy to enter hole that material internal has a connection small in a large number, sound wave can go deep into material internal along these holes, cause the air molecule in material void to vibrate, with trevira friction, acoustic energy is converted into heat energy, thus make Regenerated Polyester Fibres laminate can delete absorption portion noise enerty.
The fire retardant mechanism of aluminium hydroxide: the superpolymer being mixed with Al (OH) 3, when temperature rises to 250 ~ 300 DEG C, Al (OH) 3 just absorbs heat and discharges steam in a large number, superpolymer temperature rise speed is slowed down, degrades and slow down.The simultaneously steam that discharges of Al (OH) 3 decomposes, has rushed inflammable gas rare, and slow down combustionvelocity.In addition, aluminium hydroxide dehydration, absorbing and cooling temperature, make superpolymer can not Thorough combustion, forms charing protective membrane, both stopped entering of oxygen, and also blocked the effusion of inflammable gas on surface.This carbonization process avoids the formation of cigarette ash, and therefore aluminium hydroxide fire retardant not only has good anti-flaming function, also has good to press down hood.Aluminium hydroxide fire retardant is applied: aluminium hydroxide fire retardant, is widely used in latex product, crosslinked polyethylene insulation material, in the polyester of glass strengthening tree and PVC product.This fire retardant is mineral compound, nontoxic, does not produce secondary pollution.
The present invention can reduce environmental pollution by its trevira cotton of cycling and reutilization, economizes on resources and the energy; The noise of car room can be reduced again, improve the comfortableness that automobile is driven, this Regenerated Polyester Fibres laminate is harmless to people, meet the requirement of automotive upholstery, improve the comfortableness that automobile is driven to greatest extent, eliminate the peculiar smell sent because of pitch damping affect the mood that automobile drives and be tired of that grasping the driving accident brought occurs, raising travel safety.
Regenerated Polyester Fibres laminated foil and preparation method thereof attraction and sound insulation function tool good, be connected firmly with car room wall sheet metal component surface, be provided with the effect of damping vibration attenuation, reduce automobile and to advance or automobile room vibrates the noise imported into.
Regenerated Polyester Fibres laminated foil and preparation method thereof environmental protection, free from extraneous odour produces, substitute the peculiar smell impact eliminated pitch damping fin and send, and the mood that reduction automobile is driven is tired of that grasping the driving accident brought occurs, and improves the object of safe driving.
All there is aluminium hydroxide fire retardant on Regenerated Polyester Fibres laminated foil surface, meets the combustioncharacteristics of automotive upholstery.
The present invention significantly reduces costs, and has excellent absorbing sound and lowering noise function, is suitable for the sound-absorbing sound-proof material in the strong noise equipment such as automobile, electric motor, engineering construction and environment.
Good moldability of the present invention, thermotolerance are strong, also have nontoxic, tasteless, rebound resilience is good, and be very easy to processing, can cut arbitrarily, bonding with surfaces of various materials, material as high-efficiency sound-absorbing sound insulation of new generation, environmental protection has vast potential for future development, is more suitable for the domestic packing material of engineering construction, automotive upholstery and vehicle body thereof dragon.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (6)
1. a Regenerated Polyester Fibres laminated foil, is characterized in that, comprises at least 3 layers of layer of fibers, and layer of fibers density is successively decreased along sheet thickness direction, is respectively fixed layer, half fixed layer and loft layer.
2. the preparation method of Regenerated Polyester Fibres laminated foil according to claim 1, is characterized in that, comprise the following steps:
1) reclaim the trevira goods scrapped, clean and dewater;
2) trevira goods are processed into staple fibre shape, and carry out oven dry sterilization;
3) low density polyethylene thermal fusing powder and aluminium hydroxide flame-retardant pulvis are proportionally mixed, and be evenly sprayed on staple fibre;
4) carry out lapping, control pressure and the temperature level of hot pressing after lapping, make stratum reticulare form at thickness direction the structure that fixed layer, half fixed layer and loft layer density successively decreases, i.e. obtained Regenerated Polyester Fibres laminated foil.
3. the preparation method of Regenerated Polyester Fibres laminated foil according to claim 2, is characterized in that, the trevira goods scrapped in step 1) are the inside gadgets utilizing abandoned car, comprises the cotton sound-absorbing acoustic insulation products of PE, PET trevira.
4. the preparation method of Regenerated Polyester Fibres laminated foil according to claim 2, is characterized in that, step 2) in adopt opening trevira goods are processed into staple fibre shape.
5. the preparation method of Regenerated Polyester Fibres laminated foil according to claim 2, is characterized in that, step 2) in dry the temperature of sterilization be 70 DEG C ~ 100 DEG C.
6. the preparation method of Regenerated Polyester Fibres laminated foil according to claim 2, is characterized in that, the weight percent of the LDPE thermal fusing powder of sprinkling is 5% ~ 8%, and the weight percent of aluminium hydroxide flame-retardant pulvis is 5% ~ 8%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510609878.XA CN105255121A (en) | 2015-09-23 | 2015-09-23 | Recycled polyester fiber laminated slice and preparation method thereof |
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| CN201510609878.XA CN105255121A (en) | 2015-09-23 | 2015-09-23 | Recycled polyester fiber laminated slice and preparation method thereof |
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| CN105255121A true CN105255121A (en) | 2016-01-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114405966A (en) * | 2022-01-20 | 2022-04-29 | 南通大学 | Fiber membrane fluffing device and waste facial mask recycling processing method |
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| CN1809871A (en) * | 2003-05-28 | 2006-07-26 | 爱尔兰克利翁控股公司 | Sound absorbers |
| EP2333766A1 (en) * | 2008-10-02 | 2011-06-15 | Nagoya Oil Chemical Co., Ltd. | Sound absorbing material, multilayer sound absorbing material, molded product of multilayer sound absorbing material, sound absorbing interior material, and sound absorbing floor covering material |
| CN102308039A (en) * | 2008-12-04 | 2012-01-04 | 埃曼8股份有限公司 | Nonwoven textile made from short fibers |
| CN102407643A (en) * | 2011-08-31 | 2012-04-11 | 苏州金荣华轻纺实业有限公司 | Soil release textile |
| US20130062871A1 (en) * | 2010-05-18 | 2013-03-14 | Toyota Jidosha Kabushiki Kaisha | Fender liner for vehicle and method for fabricating the same |
| CN202863304U (en) * | 2012-09-10 | 2013-04-10 | 浙江吉利汽车研究院有限公司杭州分公司 | Sound absorption automobile inner decorating plate |
-
2015
- 2015-09-23 CN CN201510609878.XA patent/CN105255121A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1809871A (en) * | 2003-05-28 | 2006-07-26 | 爱尔兰克利翁控股公司 | Sound absorbers |
| EP2333766A1 (en) * | 2008-10-02 | 2011-06-15 | Nagoya Oil Chemical Co., Ltd. | Sound absorbing material, multilayer sound absorbing material, molded product of multilayer sound absorbing material, sound absorbing interior material, and sound absorbing floor covering material |
| CN102308039A (en) * | 2008-12-04 | 2012-01-04 | 埃曼8股份有限公司 | Nonwoven textile made from short fibers |
| US20130062871A1 (en) * | 2010-05-18 | 2013-03-14 | Toyota Jidosha Kabushiki Kaisha | Fender liner for vehicle and method for fabricating the same |
| CN102407643A (en) * | 2011-08-31 | 2012-04-11 | 苏州金荣华轻纺实业有限公司 | Soil release textile |
| CN202863304U (en) * | 2012-09-10 | 2013-04-10 | 浙江吉利汽车研究院有限公司杭州分公司 | Sound absorption automobile inner decorating plate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114405966A (en) * | 2022-01-20 | 2022-04-29 | 南通大学 | Fiber membrane fluffing device and waste facial mask recycling processing method |
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Application publication date: 20160120 |
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