CN102173007A - Method for recycling thermoplastic polypropylene plastic parts of scraped automobile - Google Patents
Method for recycling thermoplastic polypropylene plastic parts of scraped automobile Download PDFInfo
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- CN102173007A CN102173007A CN2011100327081A CN201110032708A CN102173007A CN 102173007 A CN102173007 A CN 102173007A CN 2011100327081 A CN2011100327081 A CN 2011100327081A CN 201110032708 A CN201110032708 A CN 201110032708A CN 102173007 A CN102173007 A CN 102173007A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The invention belongs to the field of recycling of waste plastics of scraped automobiles, and relates to a method for recycling thermoplastic polypropylene plastic parts of a scraped automobile. The method comprises the following steps of: manually disassembling nonmetallic inner and outer ornaments and structural parts of the scraped automobile, manually sorting thermosetting plastic parts and thermoplastic plastic parts, further manually sorting the thermoplastic polypropylene plastic parts, manually disassembling and separating metallic linkage parts, circuits and the like of the sorted thermoplastic polypropylene plastic parts, performing two-stage crushing on the polypropylene plastic parts, performing ferromagnetic sorting on two crushed materials respectively to separate out metallic scraps, separating out fine metallic scraps and metallic paint by using a roller direct-current high-voltage corona and electrostatic composite electric field sorter, performing sampling performance detection on the cleaned and dried materials, adding a modifier according to the detection results and the using requirements, granulating, and manufacturing automobile plastic members by using the materials. By using the method, the plastic recycling problem of the scraped automobile is solved, broken plastic resources of the scraped automobile are recycled, environmental pollution is avoided, the energy consumption is low, and the additional value is high.
Description
Technical field
The invention belongs to the abandoned car waste plastics recovery and make the field again, relate to a kind of method of utilizing abandoned car waste plastics spare to make the required plastics of automobile component once more through series of processes.
Background technology
Along with the raising of people's environmental consciousness, require the abandoned car material to be reclaimed the abandoned car waste plastics that particularly environmental pollution is bigger." the automobile product recovery and utilization technology policy " of issue in 2006 requires to set up the abandoned car material, classification of substances is collected and separation system, improve the automobile regenerated resources recovery, process, utilize system.The phase I target: rose in 2010, all the homemade and M2 classes of import and the recyclable utilization rate of M3 class, N2 class and N3 class vehicle will reach about 85%, and wherein the utilization rate again of material is not less than 80%; The recyclable utilization rate of the M1 class N1 class vehicle of all homemade and imports will reach 80%, and wherein the utilization rate again of material is not less than 75%; The second stage target: rose in 2012, all recyclable utilization rates homemade and imported auto will reach about 90%, and wherein the utilization rate again of material is not less than 80%.The phase III target: rose in 2017, all recyclable utilization rates homemade and imported auto will reach about 95%, and wherein the utilization rate again of material is not less than 85%.
The life cycle of automobile was generally 8～15 years, and each province and city are provided with specialized agency and reclaim and disassemble behind the national regulation motor vehicle liquidation, metalwork except repair and reuse, other can be transported to steel plant and aluminium melting enterprise and carry out melt back and utilize.But the nonmetallic materials member then is difficult to handle.
2009, China's automobile pollution was about 6,000 ten thousand at present, and to the year ends 2010, the expection of the automobile pollution of China reaches 7,167 ten thousand.2010, Chinese automobile gross annual output amount will reach 1,800 ten thousand, and the increase of auto output and recoverable amount brings impact and bring challenges for the abandoned car recovery technology for the automobile recovery industry of China.Estimate 2015 to the year two thousand twenty, Chinese automobile is scrapped and can be reached 600～8,000,000, produce 50～800,000 tons in waste vapour car plastics, present these waste vapour car plastics only have very, and fraction can reuse as auto parts, major part is wanted landfill and burning, to cause serious environmental to pollute, comprise atmosphere pollution, soil pollution, water pollution and city environmental pollution etc., and must take effective technology that the abandoned car plastics are utilized again.
According to the statistics made by the departments concerned, the kind of China's automotive plastic is pressed consumption, and what are arranged, and are followed successively by PP, PVC, PU, unsaturated polyester (UP), ABS, PF, PE, PA and composite.Polypropylene is typical partially crystalline thermoplastic resin, and its good ratio of performance to price has determined it to have very wide range of application.In recent years, along with developing rapidly of auto industry, and the high performance of polypropylene product, polyacrylic output and demand significantly improve, and become fastest-rising auto plastics over nearly 10 years.
Will solve the recovery problem of macromolecular material in the automobile in addition, the unification of kind is effective method.With in the macromolecular material, polypropylene material is little owing to density at automobile, the cost performance height, and hear resistance, rigidity and chemical resistance excellence are easy to machine-shaping and recovery, have become maximum kind.In recent years, along with development of technology, complete upgrading polypropylene material performance becomes possibility, with polypropylene unify automobile also become with macromolecular material take into account simultaneously that automotive material is recyclable, lightweight, innoxious the best and inevitable choice.The ethylene/alpha-olefin copolymer that will have rubber properties is incorporated in the isotactic polypropylene resin matrix with premium properties, can obtain that performance range is hard from height, high-ductility is to high-elastic a series of alloy resins, is the ideal basic resin of preparation automobile polypropylene PP Pipe Compound.The polypropylene of new technology manufacturing not only can replace many kinds olefin polymer, can also be used to substituting a plurality of macromolecular material kinds that comprise ABS and PVC, is the good base resin of intensification using polypropylene material.This lays a good foundation for polypropylene will use more widely at automobile future.
Polypropylene is used rapidly on American market because price is low.Chrysler all uses polypropylene at the interior trim of Neon car.The various countries automobiles is all being accelerated with the speed that the PP plastics increase, and the ratio that Japanese passenger car PP plastics use is the highest, reaches 70%, and american car PP quantity of plastics is at present just with greater than 15% speed increment, and European car PP quantity of plastics is with 10% speed increment.Along with developing rapidly of auto industry, the use amount of China automobile PP plastics increases fast, and its consumption is considerably beyond other plastics.Thereby it is very necessary to the abandoned car polypropylene being reclaimed manufacturing again.
External processing method is that the nonmetal parts crushing is broken, produced the broken residual mixture of a large amount of automobiles like this, be called for short ASR, the broken residue of automobile is made of multiple material, this mixture is difficult to effective recovery with existing method, propose to use pyrolysis method in the world and handle the broken residual mixture of abandoned car plastics, method for pyrolysis is one of method preferably of recycling abandoned car plastics, can pyrolysis go out gas, liquid and pyrolysis solid, to pyrogen act as a fuel the burning recover energy, but this technology is in the laboratory research stage, and industrial control is comparatively complicated, and commercial Application is less.
Burn living by the use of thermal means as cement kiln and can effectively burn the heat energy of generation, pollute, produce toxic gas but can produce to atmosphere.Working of plastics purification technique (frictional static sorting technology, selection by winnowing technology) all is difficult to ASR is handled at present.
At application number is that 201010199803.6 patent has proposed a kind of recovery plastics and comprises PP plastics such as PPR pipe, laundry machine barrel, battery jar, bumper, air-conditioner outdoor unit shell, the automobile special material of producing can be used for the method for automobile special material, and this method is carried out modification for the method for adding pp material and other additives in reclaimed materials and handled and reach the thinking of making automobile special material again.Because modification necessarily requires do not have metal inclusion in the former waste material, it is plastics purity requirement height, and will have cutting metals such as iron filings, copper scale, copper wire, electronic devices and components bits, aluminium bits after the useless dynamo-electric raw material fragmentation, therefore application number is that 201010199803.6 method is not mentioned purifying technique, and the process implementing difficulty is big.
Patent in notification number CN 1295274B has proposed a kind of recovery and molding process of polypropylene composite waste material, mainly reclaims the automotive upholstery leftover pieces.This invention with polypropylene composite waste material after crushed, after adding the even mixing of virgin pp, coupling agent and auxiliary agent, make compound, compound is through heating, be incubated to compound and enter molten state, in mould, put into earlier glass fabric, again the molten state compound is added mold pressing in the mould, obtain the goods finished product behind the cooling demoulding.This method is because the recovery method of use thermosets is the method for mold pressing, and added value is low, has caused the waste of polypropylene composite waste material.
Patent in notification number CN 1951654B relates to a kind of reclaiming method of waste natural fiber thermoplastic composite plate, waste natural fiber thermoplastic composite plate is pulverized in this invention, again it is carried out granule, after granule again with macromolecular material mixed particle product, this compound particle can utilize and extrude, injection moulding or other forming method are made into reconstituted product, can be used for the base material of automotive trim door-plate, boot-lid panel.
In addition to after the multiple class working of plastics of the abandoned car mixing fragmentation, various materials are mixed in together, as be mixed with the material of PP, ABS, PVC, PC, the performance difference of various plastics is bigger, be difficult to mix again and make, and it is low to make added value again, and industrial applicability is narrow, and it is low that the reproducing method feasibility is reclaimed in mixing.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of recovery reproducing method of abandoned car thermoplastic polypropylene working of plastics is provided, solves an abandoned car plastics recovery difficult problem, so reach the broken plastics resource of waste vapour car recycling, avoid environmental pollution, it is little to consume energy, the added value height.
The present invention has adopted such technical scheme, and a kind of recovery reproducing method of abandoned car thermoplastic polypropylene working of plastics is characterized in that:
1) the nonmetal parts inner and outer decorative parts and the structural member of abandoned car are manually disassembled, and sub-elected thermosetting plastics spare and thermoplastic plastic parts;
2), from the thermoplastic plastic parts that sub-elects by artificial sort out thermoplastic polypropylene working of plastics;
3), the aforementioned thermoplastic polypropylene working of plastics that sorts out is adopted the two-stage fragmentation, obtain fiber, metallic paint and matrix are dissociated fully below the 3mm and the thermoplastic polypropylene plastic powders mixture of plastic powders below 1mm;
4), aforementioned hot plasticity polypropylene plastics mixture of powders is isolated the irony metal fragment and tiny other metal fragment and metallic paint are isolated in the high-pressure electrostatic sorting through ferromagnetic sorting respectively;
5), the thermoplastic polypropylene plastics broken material after the sorting is fully mixed, divide to get more than 2 times and a certain amount ofly carry out melt pelletization, and be injection molded into the standard pattern of Mechanics Performance Testing, carry out performance measurement;
6), according to the performance measurement result after the injection moulding of thermoplastic polypropylene plastics broken material, the plastic grain that sub-elects is added modifier carry out the modification processing, according to the proportioning and the addition of modifier, ask as required respectively to obtain high hard, high-ductility and high-elastic final material;
7), the aforementioned plastic grain of handling through modification is added comminutor make and heat plasticity polypropylene plastics particle, and packing, warehouse-in are standby.
Described manually disassembling must be dismantled connection metalworks such as screw and circuit board as far as possible.
Described two-stage fragmentation, Large Crusher is adopted in first order coarse crushing, adopt 6mm～12mm screen cloth, particle size after cracking is to 6mm～12mm, second level employing shear crusher in small, broken bits adopts 1mm～4mm screen cloth, further preferred 1mm～2mm screen cloth, particle size after cracking is to 1mm, so that metallic paint and matrix dissociate fully.
Two roller corona discharge high-pressure electrostatic separators are used in described high-pressure electrostatic sorting, corona uses thread corona electrode or needle-like corona electrode, and voltage is got 2kV～6kV, to avoid the corona breakdown discharge, earth electrode is the roller shape, and its rotating speed is controlled at 60 rev/mins～110 rev/mins.The preferred voltage of aforementioned high-pressure electrostatic sorting is 2kV～4kV.
The plastic grain that sub-elects is added modifier carry out the modification processing, get aforesaid plastic grain by weight and add modifier for 40～80 parts, this modifier comprises 30～60 parts of polypropylene K8303,7467,3.0～5.0 parts of coupling agents of 25～35 parts of polyolefin elastomer POE, 3～5 parts of PE waxes, 0.5～3.0 part of anti-light aging agent, 1.1～3.0 parts of antioxidants, 5～15 parts of talcum powder by weight, and, select modifier and definite modifier addition of concrete proportioning according to performance and instructions for use that sampling detects.
The aforementioned plastic grain of handling through modification is made with comminutor and is heated plasticity polypropylene plastics particle; adopt the screw mixing extruder; plastic grain after modification is handled is added the screw mixing extruder; in this extruder, melt extrude for 190～220 ℃ in temperature; making granularity is the thermoplastic polypropylene plastic grain of 2～6mm; 40 ℃ of dryings of temperature 1～2 hour, cooling back packing, warehouse-in were standby.
Method of the present invention is different with the listed method of prior art, and at first by manually disassembling and select the thermoplastic member, artificial again sorting goes out the polypropylene member, has avoided like this producing ASR and problem that the ASR that causes is difficult to recycle.To the polypropylene member that sorts out, by parts such as artificial removal's metalwork and circuit boards, adopt the fragmentation of disintegrating machine two-stage, be crushed to below the 1mm grade, metal that the polypropylene member remains and metallic paint and matrix are dissociated fully, solved the problem that metal and metallic paint and matrix strong bonded are difficult to remove like this.Sub-elect ferromagnetic and non-ferromagnetic metallic particles and metallic paint particle with physical method then, because modification necessarily requires do not have metal inclusion in the former waste material, it is plastics purity requirement height, and will there be iron filings after the automobile component fragmentation, copper scale, copper wire, the electronic devices and components bits, cutting metals such as aluminium bits, this method creatively adopts ferromagnetic sorting to solve the plastics purity problem in conjunction with the method for ground connection transfer roller high-pressure electrostatic sorting, again the waste polypropylene particle is added dedicated modified dose, the performance of granular materials such as modulus can reach 〉=1200MPa after the granulation, hot strength can reach 〉=18MPa, impacting (breach) can reach 〉=40kJ/cm2, bending strength can reach 〉=20MPa, reach good comprehensive performances, satisfy and make of the requirement of the interior exterior trim member of most automobiles with material.
After the present invention proposes motor vehicle liquidation, the recovery process of the system of automobile polypropylene member, can reach the purpose that resource is made again, make the product that pollutes little this processing method manufacturing again and can continue to make automotive upholstery and automobile exterior spare and other automobile components, also can make other and be beneficial to application component.
The present invention is at first by manually disassembling and select the thermoplastic member, people's sorting again, sub-elect metallic particles and metallic paint particle with physical method then, again the waste polypropylene particle being carried out modification handles, modifying process does not add the virgin pp raw material, performance can reach general operational requirement after the modification, reaches the purpose that resource is made again, pollutes little.
The present invention is applicable to that mainly handling present automobile uses wasting polypropylene plastic spare in a large number.This method power consumption is little, and the added value height can reclaim abandoned car in a large number and scrap plastics, avoids landfill and burning, and the protection environment does not produce secondary pollution, promotes sustainable development.
The product of this processing method manufacturing can continue to make members such as fascia, beater or beat-up, bumper, also can make other members.Because each province of national regulation has only several automobiles to disassemble treatment plant and has automobile recovery qualification, thereby utilizes this method to concentrate and disassemble and make, tallies with the national condition, especially central and west regions.
The specific embodiment
The invention will be further described below with reference to embodiment.
A kind of recovery reproducing method of abandoned car thermoplastic polypropylene working of plastics:
1) the nonmetal parts inner and outer decorative parts and the structural member of abandoned car are manually disassembled, and sub-elected thermosetting plastics spare and thermoplastic plastic parts;
2), from the thermoplastic plastic parts that sub-elects by artificial sort out thermoplastic polypropylene working of plastics;
3), the aforementioned thermoplastic polypropylene working of plastics that sorts out is adopted the two-stage fragmentation, obtain fiber, metallic paint and matrix are dissociated fully below the 3mm and the thermoplastic polypropylene plastic powders mixture of plastic powders below 1mm;
4), aforementioned hot plasticity polypropylene plastics mixture of powders is isolated the irony metal fragment and tiny other metal fragment and metallic paint are isolated in the high-pressure electrostatic sorting through ferromagnetic sorting respectively;
5), the thermoplastic polypropylene plastics broken material after the sorting is fully mixed, divide to get more than 2 times and a certain amount ofly carry out melt pelletization, and be injection molded into the standard pattern of Mechanics Performance Testing, carry out performance measurement;
6), according to the performance measurement result after the injection moulding of thermoplastic polypropylene plastics broken material, the plastic grain that sub-elects is added modifier carry out the modification processing, according to the proportioning and the addition of modifier, ask as required respectively to obtain high hard, high-ductility and high-elastic final material;
7), the aforementioned plastic grain of handling through modification is added comminutor make and heat plasticity polypropylene plastics particle, and packing, warehouse-in are standby.
Described manually disassembling must be dismantled connection metalworks such as screw and circuit board as far as possible.
Described two-stage fragmentation, Large Crusher is adopted in first order coarse crushing, adopt 6mm～12mm screen cloth, particle size after cracking is to 6mm～12mm, second level employing shear crusher in small, broken bits adopts 1mm～4mm screen cloth, further preferred 1mm～2mm screen cloth, particle size after cracking is to 1mm, so that metallic paint and matrix dissociate fully.
Two roller corona discharge high-pressure electrostatic separators are used in described high-pressure electrostatic sorting, corona uses thread corona electrode or needle-like corona electrode, and voltage is got 2kV～6kV, to avoid the corona breakdown discharge, earth electrode is the roller shape, and its rotating speed is controlled at 60 rev/mins～110 rev/mins.The preferred voltage of aforementioned high-pressure electrostatic sorting is 2kV～4kV.
The plastic grain that sub-elects is added modifier carry out the modification processing, get aforesaid plastic grain by weight and add modifier for 40～80 parts, this modifier comprises 30～60 parts of polypropylene K8303,7467,3.0～5.0 parts of coupling agents of 25～35 parts of polyolefin elastomer POE, 3～5 parts of PE waxes, 0.5～3.0 part of anti-light aging agent, 1.1～3.0 parts of antioxidants, 5～15 parts of talcum powder by weight, and, select modifier and definite modifier addition of concrete proportioning according to performance and instructions for use that sampling detects.
The aforementioned plastic grain of handling through modification is made with comminutor and is heated plasticity polypropylene plastics particle; adopt the screw mixing extruder; plastic grain after modification is handled is added the screw mixing extruder; in this extruder, melt extrude for 190～220 ℃ in temperature; making granularity is the thermoplastic polypropylene plastic grain of 2～6mm; 40 ℃ of dryings of temperature 1～2 hour, cooling back packing, warehouse-in were standby.
Embodiment 1
With manually retire car being disassembled, pull down exterior trim working of plastics and structural member in bumper, instrument board, door trim plate, the car light etc., and thermoplastic member pressed classification such as ABS, PP, PC, PVC material, metallic bond fitting on the member is removed as far as possible (as screw etc.), the PP material pieces that sorts out, its impurity purity is controlled at below 1%; The fragmentation of employing two-stage, Large Crusher is used in coarse crushing, use the 6mm screen cloth, particle size after cracking is to 6mm, to improve crushing efficiency, use shear crusher in small, broken bits uses the 1mm screen cloth, and finished breaking is to 1mm, obtain the following thermoplastic polypropylene plastic powders mixture of 1mm, carry out ferromagnetic sorting more respectively and isolate metal fragment, carry out the high-pressure electrostatic sorting again, two roller corona discharge high-pressure electrostatic separators are adopted in the high-pressure electrostatic sorting, corona electrode adopts wire electrode, voltage is set to 2.5kV, and earth electrode rotating speed 90r/min sub-elects metal fragments such as copper wire; Thermoplastic polypropylene plastics broken material after the sorting is fully mixed, divide to get for 2 times and a certain amount ofly carry out melt pelletization, and be injection molded into the standard pattern of Mechanics Performance Testing, carry out performance measurement; Get 40 parts of thermoplastic polypropylene plastics broken material particles after the sorting by weight, add by weight by 30 parts of eutectic co-polypropylene K8303(Yanshan Petrochemicals), 25 parts of polyolefin elastomer POE 7467(Duponts), 3.0 part A-150 silane coupler, 3 parts of polythene PE waxes, 0.5 a part anti-light aging agent UV-9(chemical name is 2-hydroxyl-4-methoxy benzophenone), 1.1 the product of part antioxidant TH-CPL(4-methyl-phenol and bicyclopentadiene and isobutene), 60 parts of the modifier of 5 parts of talcum powder compositions, in homogenizer, mix, plastic grain after modification is handled is added the screw mixing extruder, in this extruder, melt extrude for 190 ℃ in temperature, making granularity is the thermoplastic polypropylene plastic grain of 2mm, 40 ℃ of dryings of temperature 1 hour, cooling back packing, put in storage standby.
Embodiment 2
With manually retire car being disassembled, pull down exterior trim working of plastics and structural member in bumper, instrument board, door trim plate, the car light etc., and thermoplastic member pressed classification such as ABS, PP, PC, PVC material, metallic bond fitting on the member is removed as far as possible (as screw etc.), the PP material pieces that sorts out, its impurity purity is controlled at below 1%; The fragmentation of employing two-stage, Large Crusher is used in coarse crushing, use the 12mm screen cloth, particle size after cracking is to 12mm, to improve crushing efficiency, use shear crusher in small, broken bits uses the 1mm screen cloth, and finished breaking is to 1mm, obtain the following thermoplastic polypropylene plastic powders mixture of 1mm, carry out ferromagnetic sorting more respectively and isolate metal fragment, carry out the high-pressure electrostatic sorting again, two roller corona discharge high-pressure electrostatic separators are adopted in the high-pressure electrostatic sorting, corona electrode adopts wire electrode, voltage is set to 3kV, and earth electrode rotating speed 60r/min sub-elects metal fragments such as copper wire; Thermoplastic polypropylene plastics broken material after the sorting is fully mixed, divide to get for 5 times and a certain amount ofly carry out melt pelletization, and be injection molded into the standard pattern of Mechanics Performance Testing, carry out performance measurement; Get 80 parts of thermoplastic polypropylene plastics broken material particles after the sorting by weight, add by weight by 60 parts of eutectic co-polypropylene K8303(Yanshan Petrochemicals), 35 parts of polyolefin elastomer POE 7467(Duponts), 5.0 part isopropyl three (dioctyl pyrophosphoryl) titanate esters (KR38S) coupling agent, 5 parts of polythene PE waxes, 3.0 (chemical name is 2-hydroxyl-4 a n-octyl benzophenone to a part anti-light aging agent UV-531, be called for short DTSN), 3.0 part antioxidant 1010 (chamber, Jiangsu rises chemical industry), 20 parts of the modifier of 15 parts of talcum powder compositions, in homogenizer, mix, plastic grain after modification is handled is added the screw mixing extruder, in this extruder, melt extrude for 220 ℃ in temperature, making granularity is the thermoplastic polypropylene plastic grain of 6mm, 40 ℃ of dryings of temperature 2 hours, cooling back packing, put in storage standby.
Embodiment 3
Retire car is disassembled, pull down exterior trim working of plastics and structural member in bumper, instrument board, door trim plate, the car light etc., and thermoplastic member pressed classification such as ABS, PP, PC, PVC material, metallic bond fitting on the member is removed as far as possible (as screw etc.), the PP material pieces that sorts out, its impurity purity is controlled at below 1%; The fragmentation of employing two-stage, Large Crusher is used in coarse crushing, use the 8mm screen cloth, particle size after cracking to 6～below the 8mm, to improve crushing efficiency, use shear crusher in small, broken bits uses the 2mm screen cloth, and finished breaking is to 2mm, filter out the following thermoplastic polypropylene plastic powders mixture of 1mm, carry out ferromagnetic sorting more respectively and isolate metal fragment, carry out the high-pressure electrostatic sorting again, two roller corona discharge high-pressure electrostatic separators are adopted in the high-pressure electrostatic sorting, corona electrode adopts wire electrode, voltage is set to 2.3kV, and earth electrode rotating speed 80r/min sub-elects metal fragments such as copper wire; Thermoplastic polypropylene plastics broken material after the sorting is fully mixed, divide to get for 3 times and a certain amount ofly carry out melt pelletization, and be injection molded into the standard pattern of Mechanics Performance Testing, carry out performance measurement; The performance of this broken material is result such as table 1. after tested
The performance of the former broken material of table 1
According to the instructions for use of domestic certain motor corporation's working of plastics material, and the test result of the performance of above-mentioned former broken material, get 55 parts by weight of aforesaid broken material particles, add the modifier of table 2 proportioning, its addition is 45 parts of weight portions.
Table 2 modifier proportioning weight portion
And mixture mixes in homogenizer, be added in the screw mixing extruder, temperature is that 200 degree melt extrude in extruder, and making granularity is the thermoplastic polypropylene plastic grain of 4mm, 40 ℃ of dryings of temperature 1.5 hours, cooling back packing, warehouse-in were standby.Performance after the modification sees Table 3.
Performance after table 3 is made again
Utilize this particle to carry out injection mo(u)lding and be member, member is a bumper, and the bumper performance that obtains sees Table 4.1 and table 4.2;
The bumper performance that the thermoplastic polypropylene plastic particle material that table 4.1 utilizes the present invention to obtain is made
The bumper paint film property that the polypropylene plastics granular materials that table 4.2 utilizes the present invention to obtain is made
Claims (7)
1. the recovery reproducing method of an abandoned car thermoplastic polypropylene working of plastics is characterized in that:
1) the nonmetal parts inner and outer decorative parts and the structural member of abandoned car are manually disassembled, and sub-elected thermosetting plastics spare and thermoplastic plastic parts;
2), from the thermoplastic plastic parts that sub-elects by artificial sort out thermoplastic polypropylene working of plastics;
3), the aforementioned thermoplastic polypropylene working of plastics that sorts out is adopted the two-stage fragmentation, obtain fiber, metallic paint and matrix are dissociated fully below the 3mm and the thermoplastic polypropylene plastic powders mixture of plastic powders below 1mm;
4), aforementioned hot plasticity polypropylene plastics mixture of powders is isolated the irony metal fragment and tiny other metal fragment and metallic paint are isolated in the high-pressure electrostatic sorting through ferromagnetic sorting respectively;
5), the thermoplastic polypropylene plastics broken material after the sorting is fully mixed, divide to get more than 2 times and a certain amount ofly carry out melt pelletization, and be injection molded into the standard pattern of Mechanics Performance Testing, carry out performance measurement;
6), according to the performance measurement result after the injection moulding of thermoplastic polypropylene plastics broken material, the plastic grain that sub-elects is added modifier carry out the modification processing, according to the proportioning and the addition of modifier, ask as required respectively to obtain high hard, high-ductility and high-elastic final material;
7), the aforementioned plastic grain of handling through modification is added comminutor make and heat plasticity polypropylene plastics particle, and packing, warehouse-in are standby.
2. the recovery reproducing method of abandoned car thermoplastic polypropylene working of plastics according to claim 1 is characterized in that, described manually disassembling must be dismantled connection metalworks such as screw and circuit board as far as possible.
3. the recovery reproducing method of abandoned car thermoplastic polypropylene working of plastics according to claim 1, it is characterized in that, described two-stage fragmentation, Large Crusher is adopted in first order coarse crushing, adopts 6mm～12mm screen cloth, particle size after cracking is to 6mm～12mm, second level employing shear crusher in small, broken bits adopts 1mm～4mm screen cloth, further preferred 1mm～2mm screen cloth, particle size after cracking is to 1mm, so that metallic paint and matrix dissociate fully.
4. the recovery reproducing method of abandoned car thermoplastic polypropylene working of plastics according to claim 1, it is characterized in that, two roller corona discharge high-pressure electrostatic separators are used in described high-pressure electrostatic sorting, corona uses thread corona electrode or needle-like corona electrode, voltage is got 2kV～6kV, to avoid the corona breakdown discharge, earth electrode is the roller shape, and its rotating speed is controlled at 60 rev/mins～110 rev/mins.
5. according to the recovery reproducing method of claim 1 or 4 described abandoned car thermoplastic polypropylene working of plastics, it is characterized in that the preferred voltage of aforementioned high-pressure electrostatic sorting is 2kV～4kV.
6. the recovery reproducing method of abandoned car thermoplastic polypropylene working of plastics according to claim 1, it is characterized in that, the plastic grain that sub-elects is added modifier carry out the modification processing, get aforesaid plastic grain by weight and add modifier for 40～80 parts, this modifier comprises 30～60 parts of polypropylene K8303 by weight, 25～35 parts of polyolefin elastomer POE 7467,3.0～5.0 parts of coupling agents, 3～5 parts of PE waxes, 0.5～3.0 parts of anti-light aging agent, 1.1～3.0 parts of antioxidants, 5～15 parts of talcum powder, and, select modifier and definite modifier addition of concrete proportioning according to performance and instructions for use that sampling detects.
7. the recovery reproducing method of abandoned car thermoplastic polypropylene working of plastics according to claim 1; it is characterized in that; the aforementioned plastic grain of handling through modifier is made with comminutor and is heated plasticity polypropylene plastics particle; adopt the screw mixing extruder; plastic grain after modification is handled is added the screw mixing extruder; in this extruder, melt extrude for 190～220 ℃ in temperature; making granularity is the thermoplastic polypropylene plastic grain of 2～6mm; 40 ℃ of dryings of temperature 1～2 hour, cooling back packing, warehouse-in were standby.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581986A (en) * | 2012-02-27 | 2012-07-18 | 大河宝利材料科技(苏州)有限公司 | Method for recycling post-industrial recycling waste plastic |
| CN103057026A (en) * | 2013-01-06 | 2013-04-24 | ***容环保科技有限公司 | Production process of regeneration product of mixed plastic sorted from municipal domestic wastes |
| CN104525365A (en) * | 2015-01-13 | 2015-04-22 | 宁波市阳光汽车配件有限公司 | Roller combing type strong magnetic metal separating device for automobile nonmetal waste |
| CN104525366A (en) * | 2015-01-13 | 2015-04-22 | 宁波市阳光汽车配件有限公司 | Molding and granulating device and granulating method for automobile nonmetal waste |
| CN107163386A (en) * | 2017-05-27 | 2017-09-15 | 苏州马培德办公用品制造有限公司 | A kind of polypropylene recovery material purification and reuse method |
| CN108699622A (en) * | 2015-09-14 | 2018-10-23 | 达涅利机械设备股份公司 | Device and method for recycling and handling the residue from broken iron-containing waste |
| CN109016239A (en) * | 2018-08-07 | 2018-12-18 | 王志强 | A kind of abandoned car recycling processing method |
| CN110889168A (en) * | 2019-11-16 | 2020-03-17 | 重庆长安汽车股份有限公司 | Corrosion evaluation method for scrapped automobile disassembly |
| CN111761750A (en) * | 2020-06-29 | 2020-10-13 | 黄纯干 | Processing technology of polypropylene |
| CN112339157A (en) * | 2019-08-07 | 2021-02-09 | 仪城企业股份有限公司 | Method for recycling multilayer polyamide material |
| CN113119351A (en) * | 2021-04-26 | 2021-07-16 | 肥城联谊工程塑料有限公司 | Method for preparing reclaimed material from thermoplastic composite material stretched product |
| CN114989628A (en) * | 2022-05-20 | 2022-09-02 | 泗阳联欣塑业有限公司 | Production process of antioxidant plastic particles |
| CN115042345A (en) * | 2022-06-30 | 2022-09-13 | 上杭鑫昌龙实业有限公司 | Regenerated product containing crosslinked polyethylene regenerated material and preparation method thereof |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581986A (en) * | 2012-02-27 | 2012-07-18 | 大河宝利材料科技(苏州)有限公司 | Method for recycling post-industrial recycling waste plastic |
| CN102581986B (en) * | 2012-02-27 | 2014-07-02 | 大河宝利材料科技(苏州)有限公司 | Method for recycling post-industrial recycling waste plastic |
| CN103057026A (en) * | 2013-01-06 | 2013-04-24 | ***容环保科技有限公司 | Production process of regeneration product of mixed plastic sorted from municipal domestic wastes |
| CN104525365A (en) * | 2015-01-13 | 2015-04-22 | 宁波市阳光汽车配件有限公司 | Roller combing type strong magnetic metal separating device for automobile nonmetal waste |
| CN104525366A (en) * | 2015-01-13 | 2015-04-22 | 宁波市阳光汽车配件有限公司 | Molding and granulating device and granulating method for automobile nonmetal waste |
| CN104525365B (en) * | 2015-01-13 | 2017-02-08 | 宁波市阳光汽车配件有限公司 | Roller combing type strong magnetic metal separating device for automobile nonmetal waste |
| CN104525366B (en) * | 2015-01-13 | 2017-02-22 | 宁波市阳光汽车配件有限公司 | Molding and granulating device and granulating method for automobile nonmetal waste |
| CN108699622A (en) * | 2015-09-14 | 2018-10-23 | 达涅利机械设备股份公司 | Device and method for recycling and handling the residue from broken iron-containing waste |
| CN107163386A (en) * | 2017-05-27 | 2017-09-15 | 苏州马培德办公用品制造有限公司 | A kind of polypropylene recovery material purification and reuse method |
| CN109016239A (en) * | 2018-08-07 | 2018-12-18 | 王志强 | A kind of abandoned car recycling processing method |
| CN109016239B (en) * | 2018-08-07 | 2021-05-07 | 鑫广再生资源(上海)有限公司 | Resource treatment method for scraped car |
| CN112339157A (en) * | 2019-08-07 | 2021-02-09 | 仪城企业股份有限公司 | Method for recycling multilayer polyamide material |
| CN110889168A (en) * | 2019-11-16 | 2020-03-17 | 重庆长安汽车股份有限公司 | Corrosion evaluation method for scrapped automobile disassembly |
| CN111761750A (en) * | 2020-06-29 | 2020-10-13 | 黄纯干 | Processing technology of polypropylene |
| CN113119351A (en) * | 2021-04-26 | 2021-07-16 | 肥城联谊工程塑料有限公司 | Method for preparing reclaimed material from thermoplastic composite material stretched product |
| CN114989628A (en) * | 2022-05-20 | 2022-09-02 | 泗阳联欣塑业有限公司 | Production process of antioxidant plastic particles |
| CN115042345A (en) * | 2022-06-30 | 2022-09-13 | 上杭鑫昌龙实业有限公司 | Regenerated product containing crosslinked polyethylene regenerated material and preparation method thereof |
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