CN101628988B - Chemical recovery method of vehicle interior ceiling - Google Patents
Chemical recovery method of vehicle interior ceiling Download PDFInfo
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- CN101628988B CN101628988B CN2009101842580A CN200910184258A CN101628988B CN 101628988 B CN101628988 B CN 101628988B CN 2009101842580 A CN2009101842580 A CN 2009101842580A CN 200910184258 A CN200910184258 A CN 200910184258A CN 101628988 B CN101628988 B CN 101628988B
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- 239000005060 rubber Substances 0.000 claims abstract description 51
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- 239000004814 polyurethane Substances 0.000 claims abstract description 40
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- 230000008030 elimination Effects 0.000 claims description 7
- 238000003379 elimination reaction Methods 0.000 claims description 7
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 claims description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical group CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
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- 241000628997 Flos Species 0.000 claims description 5
- -1 aliphatic ester compound Chemical class 0.000 claims description 5
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- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 3
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- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical class CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 2
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 claims description 2
- NSOXQYCFHDMMGV-UHFFFAOYSA-N Tetrakis(2-hydroxypropyl)ethylenediamine Chemical compound CC(O)CN(CC(C)O)CCN(CC(C)O)CC(C)O NSOXQYCFHDMMGV-UHFFFAOYSA-N 0.000 claims description 2
- 238000005119 centrifugation Methods 0.000 claims description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 2
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 claims description 2
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 2
- 239000004744 fabric Substances 0.000 abstract description 9
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- 238000007598 dipping method Methods 0.000 abstract 3
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- 150000001875 compounds Chemical class 0.000 abstract 1
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- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- FLIACVVOZYBSBS-UHFFFAOYSA-N Methyl palmitate Chemical compound CCCCCCCCCCCCCCCC(=O)OC FLIACVVOZYBSBS-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 235000019634 flavors Nutrition 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- QYDYPVFESGNLHU-KHPPLWFESA-N methyl oleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC QYDYPVFESGNLHU-KHPPLWFESA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- WIBFFTLQMKKBLZ-SEYXRHQNSA-N n-butyl oleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCCCC WIBFFTLQMKKBLZ-SEYXRHQNSA-N 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention relates to a chemical recovery method of a vehicle interior ceiling, which comprises the following steps: cutting a ceiling and then dipping the cut ceiling into an organic compound solvent; heating the solvent to dissolve flexible polyurethane foams in the ceiling; filtering out the solvent after the reaction and dipping the ceiling into water so as to ensure that a PET fabric and a polyurethane composition board are automatically separated under the action of gravity; centrifuging the filtered compound solvent to obtain the flexible polyurethane foams; heating the organic solvent and then adding the polyurethane composition board to the organic solvent until various layers of substances in the polyurethane composition board are separated; filtering out insoluble rigid polyurethane foams, glass fibers and non-woven fabric mixtures and directly dipping the rigid polyurethane foams, the glass fibers and the non-woven fabric mixtures into water for sorting; centrifuging out course rubber powders from the organic solvent; adding an extracting agent to the course rubber powder as well as stirring and then adding low carbon alcohol to an obtained mixture to obtain a white floccule; and filtering or centrifuging the white floccule to obtain pure rubber powder. The method has low labor intensity, and the organic solvent can be repeatedly used. Moreover, the content of each component in the vehicle interior ceiling can be precisely analyzed, thus the method can be applied to product quality inspection.
Description
Affiliated technical field:
The present invention relates to a kind of chemical recovery method of vehicle interior ceiling, can reclaim wherein HDPE rubber powder, urethane, glass fibre, non-woven fabrics and knit fabric respectively, and can in inner decorative ceiling raw material and final product quality check, analyze the content of each component.
Background technology:
Automotive industry is the mainstay industry of Chinese national economy, step into 21 century after, the automobile that China produces in the 80-90 age in 20th century enters the phase of eliminating in succession, in the near future, the processing of these abandoned cars will become China and be badly in need of a significant problem solving.European Parliament and EU Council expressly provide that before 1 day January in 2006, utilization again and recovery to all scrap-cars should increase to more than 85% of per car and annual weight in average in the scrap-car instruction of passing through in 2000; In the same time limit, utilize again and circulate, should increase to more than 80% of per car and annual weight in average.Before 1 day January in 2015, utilization again and recovery to scrap-car should increase to more than 95% of per car and annual weight in average; In the same time limit, utilize again and circulate, should increase to more than 85% of per car and annual weight in average.
21 century, the flourish rapid development that drives the trolley part industry of China's automobile industry, the handling problem that has thereupon brought a large amount of wastes, scrap stock.At present, the treatment process of the waste that automotive upholstery produces mainly is landfill and burning, and the regeneration part is few, and this had both caused the waste of resource, had polluted environment again.In fact, waste and old inside gadget more and more becomes important source of pollution that destroy ocean and terrestrial environment, and countries in the world have been dropped into a large amount of financial resources and material resources are administered research to it.Theoretically, waste material all can be recycled, and the main mode of recycling comprises energy law and physics method two classes.Energy law mainly is to adopt to burn to reclaim heat, be applied to roasting cement or generating, but burning can bring secondary pollution, in the process that reclaims heat, has also generated the obnoxious flavour of contaminate environment such as a large amount of NOx, HCl.Therefore, it is worthless adopting the method processing waste material of energy recovery.It mainly is to pulverize scrap stock that the physics method reclaims, and makes particle then, makes sheet material after mixing with some thermoplastic particles such as polypropylene particles again.Because lining intensity height, the good toughness of top, so difficult the pulverizing.And in the top various materials in light weight, density is little, so, problems such as granulation difficulty still can occur, the physics method is reclaimed is in bottleneck stage even material is pulverized by force.And amount of literature data shows, the article that physics method Recycled materials are made, and its performance can descend, and only is applicable to rudimentary goods, so the physics method is eliminated just gradually.
Along with economy and development of science and technology, people's R﹠D direction is drawn close to chemical method gradually, but yet there are no the report that chemical method reclaims vehicle interior ceiling.Present most of ceilings of producing, mainly be to form by precoat and Rigid foam polyurethane hot pressing, contain PET lining and flexible PU foam in the precoat, contain non-woven fabrics, HDPE rubber powder, hard polyurethane foam, glass fibre and a small amount of EAA (ethylene-acrylic acid copolymer) in the Rigid foam polyurethane.Wherein, about 25% is the HDPE rubber powder, and 10% is hard polyurethane foam, and 30% is glass fibre, and 20% is the non-woven fabrics and the lining of PET material, and remaining 5% is flexible PU foam and EAA film.
Summary of the invention:
The objective of the invention is: in order to improve the existing made article of physics method Recycled materials, its performance can descend, and only is applicable to rudimentary goods, and the energy law recovery can bring secondary pollution problems and propose a kind of chemical recovery method of vehicle interior ceiling.
Technical scheme of the present invention is: a kind of chemical recovery of vehicle interior ceiling and analytical procedure, and concrete steps are as follows:
A: will immerse in the organic complex solvent after the ceiling cutting, be heated to 40-150 ℃ and stirring, the flexible PU foam in the dissolving ceiling, reaction finishes back elimination solvent and immerses in the water, and the PET lining is separated because of action of gravity automatically with Rigid foam polyurethane; The complex solvent centrifugation that leaches is obtained flexible PU foam;
B: organic solvent is heated to 50-150 ℃, then Rigid foam polyurethane is added wherein and stir, each layer separating substances in Rigid foam polyurethane leaches undissolved hard polyurethane foam, glass fibre and non-woven fabrics mixture; Centrifugally from organic solvent again go out thick rubber powder;
C: in thick rubber powder, add extraction agent and stir, add low-carbon alcohol then, obtain white floss, filter or centrifugally promptly obtain purified rubber powder;
D: hard polyurethane foam, glass fibre and the non-woven fabrics mixture that leaches among the step B directly immersed in the water sort, obtain hard polyurethane foam, glass fibre and non-woven fabrics respectively.
Vehicle interior ceiling of the present invention is made up of PET precoat (1), flexible polyurethane alveolar layer (2) and Rigid foam polyurethane, and wherein Rigid foam polyurethane is made up of nonwoven layer (3), rigid polyurethane alveolar layer (5), glass layer (6) and two layers of HDPE rubber powder layer (4).
Organic complex solvent described in the preferred steps A contains a kind of in ethylene glycol, Virahol, propylene glycol, glycerol, glycol ether, butyleneglycol, triethylamine, diethylamine, quadrol, diethanolamine or the acetic ester at least, the mass ratio of organic complex solvent and ceiling is 0.5: 1-100: 1, preferred 1: 1-50: 1.
Organic solvent described in the above-mentioned steps B is preferably the aliphatic ester compound that contains 10-25 carbon; The mass ratio of organic solvent and Rigid foam polyurethane is 1: 1-50: 1, preferred 2: 1-35: 1.Extraction agent described in the step C is acetone, ether, methyl ethyl ether, the glycol ethers that contracts, sherwood oil, tetracol phenixin, chloroform, pimelinketone, hexanaphthene or normal hexane; Low-carbon alcohol is methyl alcohol, ethanol, propyl alcohol, Virahol, butanols, butyleneglycol or amylalcohol; Extraction agent is 0.5 with the mass ratio of thick rubber powder: 1-50: 1, preferred 1: 1-20: 1, and the mass ratio of low-carbon alcohol and extraction agent is 0.1: 1-10: 1.
The present invention utilizes chemical method to reclaim wherein HDPE rubber powder, urethane, glass fibre, non-woven fabrics and knit fabric, and can accurately analyze each component content.More than organic complex solvent, organic solvent, extraction agent and the low-carbon alcohol of Shi Yonging is all reusable or through the recycling of distillatory method.Obtain purified rubber powder, the former powder of performance and rubber powder is identical, can sell.Adherent rubber powder on centrifugal hard polyurethane foam, glass fibre and the non-woven fabrics mixture that goes out can utilize extraction agent and low-carbon alcohol to reclaim equally.More than all solvents all reusable or reclaim through the distillatory mode.The mixture of the centrifugal hard polyurethane foam that goes out and glass fibre, non-woven fabrics because density is different, can directly separate in water.Non-woven fabrics and glass fibre directly sort, and glass fibre reclaims to be sold, and accounts for 30% of ceiling material total mass.Isolated non-woven fabrics and PET lining can be prepared into particle by the mode of pulverizing or high-temperature fusion and reclaim use again.Hard polyurethane foam can adopt chemical method to be degraded into polyvalent alcohol.
For polyurethane plate manufacturing enterprise, there is a spot of HDPE rubber powder unrestrained in process of production on the ground, cause the waste of resource and production cost to improve.We adopt similar recovery method, after unrestrained rubber powder is on the ground collected, join in the organic solvent, stir and be heated to 50-150 ℃, leach the impurity in the rubber powder, wait the organic solvent cooling after, centrifugally go out rubber powder.Through and the processing of above identical low-carbon alcohol after, also can obtain purified rubber powder, can directly use.
Beneficial effect:
At present, the treatment process of automotive interior roof waste mainly is landfill and burning, and the regeneration part is few, and this had both caused the waste of resource, had polluted environment again.Also utilize the physical pulverization method to reclaim vehicle interior ceiling in addition, because knit fabric intensity height, the good toughness of ceiling, so difficult the pulverizing.And in the ceiling other material in light weight, density is little, cause material to pulverize back granulation difficulty.So physical pulverization method recovery difficult is unfavorable for greatly again applying.Utilize chemical method can reclaim various compositions in the ceiling respectively, obtain certain economic benefits and reduce pollution to environment, chemical recovery method labour intensity is little simultaneously, and it is reusable to reclaim employed organic solvent.This method can also the Accurate Analysis vehicle interior ceiling in the content of each component, can be applicable to product quality inspection.
Description of drawings:
Fig. 1 is a ceiling heating platen synoptic diagram; 1.PET precoat wherein, 2. flexible polyurethane alveolar layer, 3. nonwoven layer, 4.HDPE rubber powder layer, 5. rigid polyurethane alveolar layer and 6 glass layers.
Embodiment:
Embodiment 1:
(1) will immerse after 100 gram vehicle interior ceiling scrap stock (structure as shown in Figure 1) cuttings in the 300 gram glycerol organic complex solvents (wherein containing 30 gram ethylene glycol), be heated to 100 ℃ and stirring, flexible PU foam in the ceiling will dissolve automatically, reaction finishes back elimination solvent, add entry, the PET cloth is separated because of action of gravity automatically with Rigid foam polyurethane.
(2) Rigid foam polyurethane is that hard polyurethane foam, glass fibre, non-woven fabrics and rubber powder form through hot pressing.The organic solvent Witconol 2301 is heated to 120 ℃, then Rigid foam polyurethane is added wherein and stir that each layer material separates fully in Rigid foam polyurethane, the mass ratio of organic solvent and Rigid foam polyurethane is 10: 1, insolubles hard polyurethane foam, glass fibre and non-woven fabrics are leached, centrifugally from organic solvent again go out thick rubber powder.
(3) in the centrifugal thick rubber powder that goes out, add the extraction agent hexanaphthene, stir, remaining organic solvent in the dissolving rubber powder, add ethanol at last, obtain white floss, filter and obtain purified rubber powder.Extraction agent is 2: 1 with the mass ratio of thick rubber powder, and the mass ratio of ethanol and extraction agent is 1: 1.Reclaiming the rubber powder quality is 23.8 grams.
(4) adherent rubber powder use and the same method of step (3) reclaim on hard polyurethane foam, glass fibre and the non-woven fabrics mixture.
(5) hard polyurethane foam, glass fibre and non-woven fabrics can directly sort in water because density is different.Hard polyurethane foam, glass fibre and non-woven fabrics quality are respectively 9.8 grams, 28.0 grams and 19.6 grams.
Embodiment 2:
(1) will immerse after the 100 gram vehicle interior ceiling scrap stock cuttings in the 300 gram glycerol organic complex solvents (wherein containing 30 gram ethylene glycol), be heated to 80 ℃ and stirring, flexible PU foam in the ceiling will dissolve automatically, reaction finishes back elimination solvent, add entry, the PET cloth is separated because of action of gravity automatically with Rigid foam polyurethane.
(2) the organic solvent butyl oleate is heated to 140 ℃, then Rigid foam polyurethane is added wherein and stir that each layer material separates fully in Rigid foam polyurethane, the mass ratio of organic solvent and Rigid foam polyurethane is 20: 1, insolubles hard polyurethane foam, glass fibre and non-woven fabrics are leached, centrifugally from organic solvent again go out thick rubber powder.
(3) in the centrifugal thick rubber powder that goes out, add the extraction agent hexanaphthene, stir, remaining organic solvent in the dissolving rubber powder, add Virahol at last, obtain white floss, filter and obtain purified rubber powder.Extraction agent is 10: 1 with the mass ratio of thick rubber powder, and the mass ratio of Virahol and extraction agent is 2: 1.Reclaiming the rubber powder quality is 24.2 grams.
(4) adherent rubber powder use and the same method of step (3) reclaim on hard polyurethane foam, glass fibre and the non-woven fabrics.
(5) hard polyurethane foam, glass fibre and non-woven fabrics can directly sort in water because density is different.Hard polyurethane foam, glass fibre and non-woven fabrics quality are respectively 9.0 grams, 29.2 grams and 19.0 grams.
Embodiment 3:
(1) will immerse after the 100 gram vehicle interior ceiling scrap stock cuttings in the 3000 gram butyleneglycol organic complex solvents (wherein containing 300 gram ethylene glycol and 100 gram triethylamines), be heated to 100 ℃ and stirring, flexible PU foam in the ceiling will dissolve automatically, reaction finishes back elimination solvent, add entry, the PET cloth is separated because of action of gravity automatically with Rigid foam polyurethane.
(2) the organic solvent Uniphat A60 is heated to 120 ℃, then Rigid foam polyurethane is added wherein and stir that each layer material separates fully in Rigid foam polyurethane, the mass ratio of organic solvent and Rigid foam polyurethane is 35: 1, insolubles hard polyurethane foam, glass fibre and non-woven fabrics are leached, centrifugally from organic solvent again go out thick rubber powder.
(3) in the centrifugal thick rubber powder that goes out, add extraction agent acetone, stir, remaining organic solvent in the dissolving rubber powder, add methyl alcohol at last, obtain white floss, filter and obtain purified rubber powder.Extraction agent is 5: 1 with the mass ratio of thick rubber powder, and the mass ratio of ethanol and extraction agent is 1: 1.Reclaiming the rubber powder quality is 23.6 grams.
(4) adherent rubber powder use and the same method of step (3) reclaim on hard polyurethane foam, glass fibre and the non-woven fabrics.
(5) hard polyurethane foam, glass fibre and non-woven fabrics can directly sort in water because density is different.Hard polyurethane foam, glass fibre and non-woven fabrics quality are respectively 9.8 grams, 29.2 grams and 19.5 grams.
Embodiment 4:
To immerse in the 300 gram glycerol organic solvents after the 100 gram vehicle interior ceiling scrap stock cuttings, be heated to 110 ℃ and stirring, the flexible PU foam in the ceiling will dissolve automatically, and reaction finishes back elimination solvent, add entry, the PET cloth is separated because of action of gravity automatically with Rigid foam polyurethane.Other step is with step (2)-(6) of embodiment 1.The quality of rubber powder, hard polyurethane foam, glass fibre and the non-woven fabrics that reclaims is respectively 22 grams, 9.4 grams, 28.2 grams and 19.4 grams.
Embodiment 5:
To immerse after the 100 gram vehicle interior ceiling scrap stock cuttings in the 2000 gram butyleneglycol organic complex solvents (wherein containing 50 gram acetic ester), be heated to 100 ℃ and stirring, flexible PU foam in the ceiling will dissolve automatically, reaction finishes back elimination solvent, add entry, the PET cloth is separated because of action of gravity automatically with Rigid foam polyurethane.Other step is with step (2)-(6) of embodiment 2.The quality of rubber powder, hard polyurethane foam, glass fibre and the non-woven fabrics that reclaims is respectively 22.3 grams, 9.6 grams, 28.0 grams and 19.2 grams.
Claims (4)
1. the chemical recovery of a vehicle interior ceiling and analytical procedure, concrete steps are as follows:
A: will immerse in the organic complex solvent after the vehicle interior ceiling cutting, be heated to 40-150 ℃ and stirring, the flexible PU foam in the dissolving ceiling, reaction finishes back elimination solvent and immerses in the water, and the PET lining is separated because of action of gravity automatically with Rigid foam polyurethane; The complex solvent centrifugation that leaches is obtained flexible PU foam; Wherein said vehicle interior ceiling is made up of PET precoat (1), flexible polyurethane alveolar layer (2) and Rigid foam polyurethane, and wherein Rigid foam polyurethane is made up of nonwoven layer (3), rigid polyurethane alveolar layer (5), glass layer (6) and two layers of HDPE rubber powder layer (4); Described organic complex solvent is for containing a kind of in ethylene glycol, Virahol, propylene glycol, glycerol, glycol ether, butyleneglycol, triethylamine, diethylamine, quadrol, diethanolamine or the acetic ester at least; Wherein the mass ratio of organic complex solvent and ceiling is 0.5: 1-100: 1;
B: organic solvent is heated to 50-150 ℃, then Rigid foam polyurethane is added wherein and stir, each layer separating substances in Rigid foam polyurethane leaches undissolved hard polyurethane foam, glass fibre and non-woven fabrics mixture; Centrifugally from organic solvent again go out thick rubber powder; Wherein said organic solvent is the aliphatic ester compound that contains 10-25 carbon; Wherein the mass ratio of organic solvent and Rigid foam polyurethane is 1: 1-50: 1;
C: in thick rubber powder, add extraction agent and stir, add low-carbon alcohol then, obtain white floss, filter or centrifugally promptly obtain purified rubber powder; Wherein said extraction agent is acetone, ether, methyl ethyl ether, the glycol ethers that contracts, sherwood oil, tetracol phenixin, chloroform, pimelinketone, hexanaphthene or normal hexane; Low-carbon alcohol is methyl alcohol, ethanol, propyl alcohol, Virahol, butanols, butyleneglycol or amylalcohol; Wherein extraction agent is 0.5 with the mass ratio of thick rubber powder: 1-50: 1; The mass ratio of low-carbon alcohol and extraction agent is 0.1: 1-10: 1;
D: hard polyurethane foam, glass fibre and the non-woven fabrics mixture that leaches among the step B directly immersed in the water sort, obtain hard polyurethane foam, glass fibre and non-woven fabrics respectively.
2. method according to claim 1, the mass ratio that it is characterized in that organic complex solvent and ceiling is 1: 1-50: 1.
3. method according to claim 1, the mass ratio that it is characterized in that organic solvent and Rigid foam polyurethane is 2: 1-35: 1.
4. method according to claim 1 is characterized in that the extraction agent and the mass ratio of thick rubber powder are 1: 1-20: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101842580A CN101628988B (en) | 2009-08-24 | 2009-08-24 | Chemical recovery method of vehicle interior ceiling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101842580A CN101628988B (en) | 2009-08-24 | 2009-08-24 | Chemical recovery method of vehicle interior ceiling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101628988A CN101628988A (en) | 2010-01-20 |
| CN101628988B true CN101628988B (en) | 2011-08-31 |
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| CN102501553B (en) * | 2011-09-29 | 2016-04-20 | 溧阳市山湖实业有限公司汽车装饰材料分公司 | For the production method of the Rigid foam polyurethane of automobile ceiling |
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