CN105713295A - Method for recycling PET (polyethylene terephthalate) and PP (polypropylene) two-component sound absorption material - Google Patents
Method for recycling PET (polyethylene terephthalate) and PP (polypropylene) two-component sound absorption material Download PDFInfo
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- CN105713295A CN105713295A CN201610208928.8A CN201610208928A CN105713295A CN 105713295 A CN105713295 A CN 105713295A CN 201610208928 A CN201610208928 A CN 201610208928A CN 105713295 A CN105713295 A CN 105713295A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Building Environments (AREA)
Abstract
The invention relates to a method for recycling a leftover material of a PET (polyethylene terephthalate) and PP (polypropylene) two-component sound absorption material. The content of PP in the leftover material of the PET and PP sound absorption material is 65%-70%. The recycling method comprises the following steps: (1) the leftover material of the sound absorption material containing PET and PP mixed fibers is added to methyl methacrylate steeping liquor containing methyl ethyl ketone peroxide for steeping, the steeped material is taken out and hardened, and a fiber sheet is obtained; (2) fiber particles are prepared from the fiber sheet through punching; (3) pure PP particles with the mass percent of 25% and hollow glass microspheres with the mass percent of 20%-35% are added to the fiber particles and mixed with the fiber particles, the mixture of the fiber particles, the PP particles and the hollow glass microspheres is subjected to melting extrusion at the temperature of 180-200 DEG C, and a light composite material is obtained. Compared with the prior art, waste sound absorption material can be converted into the practical and light composite material, the operation is simple, resources are saved, and environmental pollution is reduced.
Description
Technical field
The present invention relates to a kind of PET and PP double-component sound-absorbing material recoverying and utilizing method.
Background technology
Along with expanding economy, people are more and more higher for the requirement of automobile comfort level and upholstery material, and substantial amounts of sound-absorbing deadener is widely used in automobile all parts, so that the demand of automobile-used high-performance acoustical material is increasing.
A kind of double-component acoustical cotton processed by PET and PP has the advantages such as sound-absorption coefficient height, light weight and is widely used, and large batch of production not only wastes resource but also the leftover bits amount that produces is big, therefore, recycles and just becomes extremely important.
For mass-produced double-component acoustical cotton material, with burning raw heat, owing to existing, equipment investment is excessive, cost recovery is high with Pintsch process equal energy source Application way, and its application is restricted.
Summary of the invention
The technical problem to be solved is to provide one can be converted into practical composite by PET and PP double-component sound-absorbing material leftover bits, operates simple and easy, to economize on resources consumption and reduction environmental pollution sound-absorbing material recoverying and utilizing method.
The technical scheme is that a kind of PET and PP double-component sound-absorbing material recoverying and utilizing method, comprise the following steps:
(1) the methyl methacrylate impregnation liquid that the sound-absorbing material leftover bits addition containing PET and PP composite fibre is contained methyl ethyl ketone peroxide soaks, take out after immersion and carry out the fibre plate that hardens to obtain；
(2) fibre plate is punched out, obtains fiber grain；
(3) neat polypropylene pellets of fiber grain addition mass percent 25% and the hollow glass micropearl of 20%～35% mix, control temperature 180～200 DEG C to fiber grain, PP GRANULES, hollow glass micropearl mixture melt extrude, obtain composite.
Further, in step (1), methyl ethyl ketone peroxide molar concentration in methyl methacrylate impregnation liquid is 1.0mol/L.
Further, in step (1), the time adding the sound-absorbing material containing PET and PP composite fibre containing carrying out soaking in the impregnation liquid of the methyl methacrylate of methyl ethyl ketone peroxide is 8～12min.
Further, in step (1), after taking out the sound-absorbing material after soaking, it is applied 30～90kpa pressure, its unnecessary monomer is extruded, then carries out the fibre plate that hardens to obtain.
Further, in step (1), the sound-absorbing material after soaking is carried out polymerization hardening at 80～85 DEG C, obtains fibre plate.
Further, the time of the sound-absorbing material polymerization hardening after immersion is 2～6 hours.
Further, in step (2), by the punching cutter of pneumatic sheet-punching machine, fibre plate is punched out, obtains fiber grain.
Further, in step (3), by double screw extruder to fiber grain, PP GRANULES, hollow glass micropearl mixture melt extrude to obtain composite.
Further, fiber grain, PP GRANULES, hollow glass micropearl weight ratio be 100:25:20～35.
The invention has the beneficial effects as follows: the PET contained in discarded sound-absorbing material, PP fiber etc. are filled as filler and strengthens polyolefin plastics, be simultaneously introduced hollow glass micropearl and prepare light composite material.The PET in sound-absorbing material leftover bits and PP fiber can be reclaimed, it is achieved resource recycles, the performance of plastics can be modified again being converted into by discarded sound-absorbing material practical composite, operate simple and easy, economize on resources consumption and reduce environmental pollution.
Accompanying drawing explanation
Fig. 1 is the flow chart of the present invention a kind of PET and PP double-component sound-absorbing material recoverying and utilizing method.
Detailed description of the invention
Below in conjunction with accompanying drawing, principles of the invention and feature being described, example is served only for explaining the present invention, is not intended to limit the scope of the present invention.
Embodiment 1:
As it is shown in figure 1, a kind of PET and PP double-component sound-absorbing material recoverying and utilizing method, comprise the following steps:
(1) the methyl methacrylate impregnation liquid that the sound-absorbing material leftover bits addition containing PET and PP composite fibre is contained methyl ethyl ketone peroxide soaks, take out after immersion and carry out the fibre plate that hardens to obtain；
(2) fibre plate is punched out, obtains fiber grain；
(3) fiber grain add the neat polypropylene pellets of mass percent 25% and 35% hollow glass micropearl mix, control temperature 200 DEG C to fiber grain, PP GRANULES, hollow glass micropearl mixture melt extrude, obtain composite.
Preferably, in step (1), methyl ethyl ketone peroxide molar concentration in methyl methacrylate impregnation liquid is 1.0mol/L.
Preferably, in step (1), the time adding the sound-absorbing material containing PET and PP composite fibre containing carrying out soaking in the impregnation liquid of the methyl methacrylate of methyl ethyl ketone peroxide is 12min.
Preferably, in step (1), after taking out the sound-absorbing material after soaking, it is applied 90kpa pressure, its unnecessary monomer is extruded, then carries out the fibre plate that hardens to obtain.
Preferably, in step (1), the sound-absorbing material after soaking is carried out polymerization hardening at 85 DEG C, obtains fibre plate.
Preferably, the time of the sound-absorbing material polymerization hardening after immersion is 6 hours.
Preferably, in step (2), by the punching cutter of pneumatic sheet-punching machine, fibre plate is punched out, obtains fiber grain.
Preferably, in step (3), fiber grain adds the hollow glass micropearl of quality 25% PP GRANULES and 30%, then control temperature 200 DEG C, by double screw extruder, mixture melt extruded to obtain composite.
Preferably, fiber grain, PP GRANULES, hollow glass micropearl weight ratio be 100:25:20.
Embodiment 2:
(1) the methyl methacrylate impregnation liquid that the sound-absorbing material addition containing PET and PP composite fibre is contained methyl ethyl ketone peroxide carries out soaking 8min, after taking out the sound-absorbing material after soaking, it is applied 90kpa pressure, its unnecessary monomer is extruded, carry out polymerization hardening 2 hours at 82 DEG C, obtain fibre plate；
(2) fibre plate is punched out, obtains fiber grain；
(3) in fiber grain, add the hollow glass micropearl of quality 25% PP GRANULES and 20%, then control temperature 180 DEG C and by double screw extruder, mixture is melt extruded, obtain composite.
Preferably, in step (1), methyl ethyl ketone peroxide molar concentration in methyl methacrylate impregnation liquid is 1.0mol/L.
Preferably, in step (1), the time adding the sound-absorbing material containing PET and PP composite fibre containing carrying out soaking in the impregnation liquid of the methyl methacrylate of methyl ethyl ketone peroxide is 8min.
Preferably, in step (1), after taking out the sound-absorbing material after soaking, it is applied 30kpa pressure, its unnecessary monomer is extruded, then carries out the fibre plate that hardens to obtain.
Preferably, in step (1), the sound-absorbing material after soaking is carried out polymerization hardening at 80 DEG C, obtains fibre plate.
Preferably, the time of the sound-absorbing material polymerization hardening after immersion is 2 hours.
Preferably, in step (2), by the punching cutter of pneumatic sheet-punching machine, fibre plate is punched out, obtains fiber grain.
Preferably, in step (3), fiber grain adds the hollow glass micropearl of quality 25% PP GRANULES and 30%, then control temperature 180 DEG C, by double screw extruder, mixture melt extruded to obtain composite.
Preferably, fiber grain, PP GRANULES, hollow glass micropearl weight ratio be 100:25:28.
Embodiment 3:
(1) the methyl methacrylate impregnation liquid that the sound-absorbing material addition containing PET and PP composite fibre is contained methyl ethyl ketone peroxide carries out soaking 10min, after taking out the sound-absorbing material after soaking, it is applied 60kpa pressure, its unnecessary monomer is extruded, carry out polymerization hardening 4 hours at 80 DEG C, obtain fibre plate；
(2) fibre plate is punched out, obtains fiber grain；
(3) in fiber grain, add the hollow glass micropearl of quality 25% PP GRANULES and 25%, then control temperature 190 DEG C and by double screw extruder, mixture is melt extruded, obtain composite.
Preferably, in step (1), methyl ethyl ketone peroxide molar concentration in methyl methacrylate impregnation liquid is 1.0mol/L.
Preferably, in step (1), the time adding the sound-absorbing material containing PET and PP composite fibre containing carrying out soaking in the impregnation liquid of the methyl methacrylate of methyl ethyl ketone peroxide is 10min.
Preferably, in step (1), after taking out the sound-absorbing material after soaking, it is applied 60kpa pressure, its unnecessary monomer is extruded, then carries out the fibre plate that hardens to obtain.
Preferably, in step (1), the sound-absorbing material after soaking is carried out polymerization hardening at 82 DEG C, obtains fibre plate.
Preferably, the time of the sound-absorbing material polymerization hardening after immersion is 2 hours.
Preferably, in step (2), by the punching cutter of pneumatic sheet-punching machine, fibre plate is punched out, obtains fiber grain.
Preferably, in step (3), fiber grain adds the hollow glass micropearl of quality 25% PP GRANULES and 30%, then control temperature 190 DEG C, by double screw extruder, mixture melt extruded to obtain composite.
Preferably, fiber grain, PP GRANULES, hollow glass micropearl weight ratio be 100:25:35.
The leftover bits of the PET contained in sound-absorbing material, PP fiber etc. are filled as filler and are strengthened polyolefin plastics by the present invention, and add hollow glass micropearl and prepare light composite material, the PET in waste and old sound-absorbing material and PP fiber can be reclaimed, realize resource recycling, can be modified the performance of plastics again discarded sound-absorbing material can be converted into practical light composite material, operate simple and easy, economize on resources consumption and reduce environmental pollution, there is great social meaning.
The present invention is while recycling acoustical cotton material PET/PP composite fibre, and the lightweight PP composite material of generation may be used for the bumper of automobile and some non-bearing parts；Improve the intensity of composite material for vehicle, anti-flammability, thermal insulation.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (9)
1. a PET and PP double-component sound-absorbing material leftover bits recoverying and utilizing method, it is characterised in that comprise the following steps:
(1) the methyl methacrylate impregnation liquid that the sound-absorbing material leftover bits addition containing PET and PP composite fibre is contained methyl ethyl ketone peroxide soaks, take out after immersion and carry out the fibre plate that hardens to obtain；
(2) fibre plate is punched out, obtains fiber grain；
(3) neat polypropylene pellets of fiber grain addition mass percent 25% and the hollow glass micropearl of 20%～35% mix, control temperature 180～200 DEG C to fiber grain, PP GRANULES, hollow glass micropearl mixture melt extrude, obtain composite.
2. a kind of PET and PP double-component sound-absorbing material recoverying and utilizing method according to claim 1, it is characterised in that in step (1), methyl ethyl ketone peroxide molar concentration in methyl methacrylate impregnation liquid is 1.0mol/L.
3. a kind of PET and PP double-component sound-absorbing material recoverying and utilizing method according to claim 1, it is characterized in that, in step (1), the time adding the sound-absorbing material containing PET and PP composite fibre containing carrying out soaking in the impregnation liquid of the methyl methacrylate of methyl ethyl ketone peroxide is 8～12min.
4. a kind of PET and PP double-component sound-absorbing material recoverying and utilizing method according to claim 1, it is characterised in that in step (1), after taking out the sound-absorbing material after soaking, it is applied 30～90kpa pressure, its unnecessary monomer is extruded, then carries out the fibre plate that hardens to obtain.
5. a kind of PET and PP double-component sound-absorbing material recoverying and utilizing method according to claim 1, it is characterised in that in step (1), the sound-absorbing material after soaking is carried out polymerization hardening at 80～85 DEG C, obtains fibre plate.
6. a kind of PET and PP double-component sound-absorbing material recoverying and utilizing method according to claim 5, it is characterised in that the time of the sound-absorbing material polymerization hardening after immersion is 2～6 hours.
7. a kind of PET and PP double-component sound-absorbing material recoverying and utilizing method according to claim 1, it is characterised in that in step (2), by the punching cutter of pneumatic sheet-punching machine, fibre plate is punched out, obtains fiber grain.
8. a kind of PET and PP double-component sound-absorbing material recoverying and utilizing method according to any one of claim 1 to 7, it is characterized in that, in step (3), by double screw extruder 180～200 DEG C to fiber grain, PP GRANULES, hollow glass micropearl mixture melt extrude to obtain light composite material.
9. a kind of PET and PP double-component sound-absorbing material recoverying and utilizing method according to claim 8, it is characterised in that fiber grain, PP GRANULES, hollow glass micropearl weight ratio be 100:25:20～35.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610208928.8A CN105713295B (en) | 2016-04-06 | 2016-04-06 | A kind of PET and PP two-components sound-absorbing material recoverying and utilizing method |
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| CN201610208928.8A CN105713295B (en) | 2016-04-06 | 2016-04-06 | A kind of PET and PP two-components sound-absorbing material recoverying and utilizing method |
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| CN105713295A true CN105713295A (en) | 2016-06-29 |
| CN105713295B CN105713295B (en) | 2018-03-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108948524A (en) * | 2018-06-22 | 2018-12-07 | 苏州上车新材料科技有限公司 | MODIFIED PP/PET alloy die casting collet and preparation method thereof |
| CN109762304A (en) * | 2019-01-17 | 2019-05-17 | 湖北天运消音防振新材料有限公司 | A kind of sound-absorbing for automobile interiors, heat insulation foam and preparation method thereof |
| CN111850822A (en) * | 2020-06-29 | 2020-10-30 | 吉祥三宝高科纺织有限公司 | Goose down structure based melt-blown thermal insulation sound insulation material and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007114154A1 (en) * | 2006-03-28 | 2007-10-11 | Marusho Natsuyama Felt Co., Ltd. | Sound absorbing material as vehicle exterior equipment and process for manufacturing the same |
| CN103160018A (en) * | 2011-12-08 | 2013-06-19 | 合肥杰事杰新材料股份有限公司 | High toughness sound insulation composite material and preparation method thereof |
| CN103434138A (en) * | 2013-08-12 | 2013-12-11 | 扬州顺祥汽车内饰材料有限公司 | Method for recycling recovered composite hemp felt leftover material |
| CN105369479A (en) * | 2015-12-21 | 2016-03-02 | 德阳永盛无纺制品有限公司 | Technology for producing automotive trim materials through non-woven waste and leftover materials |
-
2016
- 2016-04-06 CN CN201610208928.8A patent/CN105713295B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007114154A1 (en) * | 2006-03-28 | 2007-10-11 | Marusho Natsuyama Felt Co., Ltd. | Sound absorbing material as vehicle exterior equipment and process for manufacturing the same |
| CN103160018A (en) * | 2011-12-08 | 2013-06-19 | 合肥杰事杰新材料股份有限公司 | High toughness sound insulation composite material and preparation method thereof |
| CN103434138A (en) * | 2013-08-12 | 2013-12-11 | 扬州顺祥汽车内饰材料有限公司 | Method for recycling recovered composite hemp felt leftover material |
| CN105369479A (en) * | 2015-12-21 | 2016-03-02 | 德阳永盛无纺制品有限公司 | Technology for producing automotive trim materials through non-woven waste and leftover materials |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108948524A (en) * | 2018-06-22 | 2018-12-07 | 苏州上车新材料科技有限公司 | MODIFIED PP/PET alloy die casting collet and preparation method thereof |
| CN109762304A (en) * | 2019-01-17 | 2019-05-17 | 湖北天运消音防振新材料有限公司 | A kind of sound-absorbing for automobile interiors, heat insulation foam and preparation method thereof |
| CN111850822A (en) * | 2020-06-29 | 2020-10-30 | 吉祥三宝高科纺织有限公司 | Goose down structure based melt-blown thermal insulation sound insulation material and preparation method thereof |
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| CN105713295B (en) | 2018-03-16 |
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