CN103602057A - Regenerated polyurethane (PU) particles prepared by utilizing PU waste materials from production of artificial leather - Google Patents
Regenerated polyurethane (PU) particles prepared by utilizing PU waste materials from production of artificial leather Download PDFInfo
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- CN103602057A CN103602057A CN201310539243.8A CN201310539243A CN103602057A CN 103602057 A CN103602057 A CN 103602057A CN 201310539243 A CN201310539243 A CN 201310539243A CN 103602057 A CN103602057 A CN 103602057A
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- polyurethane
- particle
- waste material
- regenerative
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- 239000004814 polyurethane Substances 0.000 title claims abstract description 69
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 66
- 239000002245 particle Substances 0.000 title claims abstract description 40
- 239000002699 waste material Substances 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000002649 leather substitute Substances 0.000 title abstract description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000011575 calcium Substances 0.000 claims abstract description 6
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 6
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims abstract description 6
- 239000008116 calcium stearate Substances 0.000 claims abstract description 6
- 235000013539 calcium stearate Nutrition 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 6
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 6
- 230000001172 regenerating effect Effects 0.000 claims description 29
- 230000015556 catabolic process Effects 0.000 claims description 10
- 238000006731 degradation reaction Methods 0.000 claims description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000003963 antioxidant agent Substances 0.000 claims description 7
- 230000003078 antioxidant effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 6
- 239000012752 auxiliary agent Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000010298 pulverizing process Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 4
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 3
- KGWDUNBJIMUFAP-KVVVOXFISA-N Ethanolamine Oleate Chemical compound NCCO.CCCCCCCC\C=C/CCCCCCCC(O)=O KGWDUNBJIMUFAP-KVVVOXFISA-N 0.000 claims description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims description 2
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 2
- XIXADJRWDQXREU-UHFFFAOYSA-M lithium acetate Chemical compound [Li+].CC([O-])=O XIXADJRWDQXREU-UHFFFAOYSA-M 0.000 claims description 2
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 2
- 229940059574 pentaerithrityl Drugs 0.000 claims description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 2
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 229960004249 sodium acetate Drugs 0.000 claims description 2
- 235000017281 sodium acetate Nutrition 0.000 claims description 2
- 239000001632 sodium acetate Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000005469 granulation Methods 0.000 abstract description 2
- 230000003179 granulation Effects 0.000 abstract description 2
- 238000007639 printing Methods 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000000654 additive Substances 0.000 abstract 1
- 230000003712 anti-aging effect Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005034 decoration Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 18
- 238000004064 recycling Methods 0.000 description 4
- 238000006136 alcoholysis reaction Methods 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005904 alkaline hydrolysis reaction Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Abstract
The invention relates to regenerated polyurethane (PU) particles prepared by utilizing PU waste materials from production of artificial leather, relating to the technical field of chemical industry. The regenerated PU particles comprise the following components in percentage by weight: 60-80% of PU waste materials, 10-35% of calcium powder, 0.5-5% of titanium dioxide, 0.1-5% of calcium stearate and 0.5-5% of additives. According to the regenerated PU particles provided by the invention, the formula is modified by repeated testing, the technical difficult problem of granulation by utilizing the PU waste materials in the production process of the artificial leather is solved, the problem that the PU waste materials can not be treated in a harmless manner is solved, the cost of treatment on the waste materials by an artificial leather enterprise is reduced, and the environmental protection pressure on the government and society is reduced; the produced new PU particles can be widely applied to the fields of buildings, printing, artificial synthetic leather, automobile industry, home decoration and the like due to the characteristics of corrosion resistance, high toughness, high abrasion resistance and anti-aging property.
Description
Technical field
The present invention relates to chemical technology field, be specifically related to a kind of regenerative polyurethane particle and preparation technology thereof who utilizes the polyurethane waste material that produces in leatheroid production process to prepare.
Background technology
Urethane (PU) material has snappiness because of it, high-wearing feature, and good low temperature resistant solvent resistance, and performance variable range is wide, and be widely used in the fields such as automobile, building, household electrical appliances, weaving, footwear material, leather.Polyurethane industrial fast development, goods are of a great variety, and output grows with each passing day, and has also produced a large amount of wastes simultaneously, and these wastes comprise scrap stock and the aging various polyurethane products of scrapping in production.Methods for Polyurethane Wastes is serious environment pollution not only, is also the significant wastage to resource, and the recycling of these waste materials is become to problem demanding prompt solution.
The recovery method of polyurethane waste material is divided into physics absorption method and chemical recycling.The main method that urethane is recycled is at present chemical recycling, under the condition existing at chemical reagent, catalyzer, heat etc., degradation of polyurethane is become to oligopolymer or the micromolecular compound that can re-use, thereby realizes the recycle of waste.According to the difference of the kind of degradation agents and degradation condition, chemical recycling can be divided into hydrolysis method, alkaline hydrolysis, amine-decomposing method, alcoholysis method etc.Alcoholysis method is wherein applicable to multiple polyurethane waste material, and reaction can be carried out under the condition of normal pressure, middle temperature.The mode separation and Extraction of the excessive available underpressure distillation of alcoholysis agent out.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of production cost low, the regenerative polyurethane particle that utilizes the polyurethane waste material in leatheroid production to prepare of energy-conserving and environment-protective.
Technical problem to be solved by this invention realizes by the following technical solutions:
A regenerative polyurethane particle that utilizes the polyurethane waste material in leatheroid production to prepare, this regenerative polyurethane particle is comprised of the component of following weight percent,
The optimum weight per-cent of each component is,
Described auxiliary agent is comprised of degradation agents, antioxidant and catalyzer, and wherein the ratio of degradation agents, antioxidant and catalyzer is classified 1:0.5:0.5 as.
Described degradation agents is selected one or more the combination in ethylene glycol, propylene glycol, thanomin, glycol ether, tetramethylolmethane.
Described catalyzer is selected Lithium Acetate, sodium-acetate or Potassium ethanoate.
Described antioxidant is selected antioxidant 1010 or 1076.
Another object of the present invention is to provide a kind of technique of preparing described regenerative polyurethane particle, comprises following method steps,
1) first collect polyurethane waste material, and by its airing, be then ground into particle stand-by;
2) take by weight ratio polyurethane waste material, calcium powder, titanium dioxide, calcium stearate and the auxiliary agent after pulverizing, each component is mixed;
3) by the heating material frying mixing, to temperature, at 65-75 ℃, the time is controlled at 15-25 minute, and then fusing when tablets press continues to be heated to 160 ℃, extrudes block through bistrique, then broken, is prepared into regenerative polyurethane particle.
The invention has the beneficial effects as follows: the present invention is through repetition test, revise formula, cracked this technical barrier of pu waste material granulation utilizing in leatheroid production process, solved the problem that pu waste material cannot harmless treatment, reduced the cost of these waste materials of leatheroid business processes, for government and society has alleviated environmental protection pressure; The new pu particle of producing is widely used in the fields such as building, printing, synthetic leather, automotive industry, house ornamentation because of its erosion resistance, high tenacity, high-wearing feature, ageing resistance.
Embodiment
For technique means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with specific embodiment, further set forth the present invention.
Embodiment 1
A regenerative polyurethane particle that utilizes the polyurethane waste material of leatheroid in producing to prepare, this regenerative polyurethane particle is comprised of the component of following weight (by kilogram),
Another object of the present invention is to provide a kind of technique of preparing described regenerative polyurethane particle, comprises following method steps,
1) first collect polyurethane waste material, and by its airing, be then ground into particle stand-by;
2) take by weight ratio polyurethane waste material, calcium powder, titanium dioxide, calcium stearate, degradation agents, antioxidant and the catalyzer after pulverizing, each component is mixed;
3) by the heating material frying mixing, to temperature, at 70 ℃, the time is controlled at 20 minutes, and then fusing when tablets press continues to be heated to 160 ℃, extrudes block through bistrique, then broken, is prepared into regenerative polyurethane particle.
Embodiment 2
A regenerative polyurethane particle that utilizes the polyurethane waste material of leatheroid in producing to prepare, this regenerative polyurethane particle is comprised of the component of following weight (by kilogram),
Another object of the present invention is to provide a kind of technique of preparing described regenerative polyurethane particle, comprises following method steps,
1) first collect polyurethane waste material, and by its airing, be then ground into particle stand-by;
2) take by weight ratio polyurethane waste material after pulverizing, calcium powder, titanium dioxide, calcium stearate, ethylene glycol, antioxidant 1010 and, each component is mixed;
3) by the heating material frying mixing, to temperature, at 70 ℃, the time is controlled at 20 minutes, and then fusing when tablets press continues to be heated to 160 ℃, extrudes block through bistrique, then broken, is prepared into regenerative polyurethane particle.
Embodiment 3
A regenerative polyurethane particle that utilizes the polyurethane waste material of leatheroid in producing to prepare, this regenerative polyurethane particle is comprised of the component of following weight (by kilogram),
Another object of the present invention is to provide a kind of technique of preparing described regenerative polyurethane particle, comprises following method steps,
1) first collect polyurethane waste material, and by its airing, be then ground into particle stand-by;
2) take by weight ratio polyurethane waste material, calcium powder, titanium dioxide, calcium stearate and the auxiliary agent after pulverizing, each component is mixed;
3) by the heating material frying mixing, to temperature, at 70 ℃, the time is controlled at 20 minutes, and then fusing when tablets press continues to be heated to 160 ℃, extrudes block through bistrique, then broken, is prepared into regenerative polyurethane particle.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (7)
1. a regenerative polyurethane particle that utilizes the polyurethane waste material in leatheroid production to prepare, is characterized in that: described regenerative polyurethane particle is comprised of the component of following weight percent,
2. the regenerative polyurethane particle that utilizes the polyurethane waste material in leatheroid production to prepare according to claim 1, is characterized in that: described regenerative polyurethane particle is comprised of the component of following weight percent,
3. the regenerative polyurethane particle that utilizes the polyurethane waste material of leatheroid in producing to prepare according to claim 1 and 2, it is characterized in that: described auxiliary agent is comprised of degradation agents, antioxidant and catalyzer, wherein the ratio of degradation agents, antioxidant and catalyzer is classified 1:0.5:0.5 as.
4. the regenerative polyurethane particle that utilizes the polyurethane waste material of leatheroid in producing to prepare according to claim 3, is characterized in that: described degradation agents is selected one or more the combination in ethylene glycol, propylene glycol, thanomin, glycol ether, tetramethylolmethane.
5. the regenerative polyurethane particle that utilizes the polyurethane waste material in leatheroid production to prepare according to claim 3, is characterized in that: described catalyzer is selected Lithium Acetate, sodium-acetate or Potassium ethanoate.
6. the regenerative polyurethane particle that utilizes the polyurethane waste material in leatheroid production to prepare according to claim 3, is characterized in that: described antioxidant is selected antioxidant 1010 or antioxidant 1076.
7. a preparation technology who prepares regenerative polyurethane particle described in claim 1 or 2, is characterized in that: comprise following processing step,
1) first collect polyurethane waste material, and by its airing, be then ground into particle stand-by;
2) take by weight ratio polyurethane waste material, calcium powder, titanium dioxide, calcium stearate and the auxiliary agent after pulverizing, each component is mixed;
3) by the heating material frying mixing, temperature is controlled at 65-75 ℃, and the time is controlled at 15-25 minute;
4) then fusing when tablets press continues to be heated to 160 ℃, extrudes block through bistrique, then broken, is prepared into regenerative polyurethane particle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310539243.8A CN103602057B (en) | 2013-11-04 | 2013-11-04 | Regenerative polyurethane particle prepared by the polyurethane waste material in utilizing leatheroid to produce |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310539243.8A CN103602057B (en) | 2013-11-04 | 2013-11-04 | Regenerative polyurethane particle prepared by the polyurethane waste material in utilizing leatheroid to produce |
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| Publication Number | Publication Date |
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| CN103602057A true CN103602057A (en) | 2014-02-26 |
| CN103602057B CN103602057B (en) | 2015-08-05 |
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| CN201310539243.8A Active CN103602057B (en) | 2013-11-04 | 2013-11-04 | Regenerative polyurethane particle prepared by the polyurethane waste material in utilizing leatheroid to produce |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106519709A (en) * | 2016-11-25 | 2017-03-22 | 史学快 | Waste leather synthesis composition and production process |
| CN106738451A (en) * | 2016-11-09 | 2017-05-31 | 江苏亿亿和华筛分设备有限公司 | Polyurethane corner material reuse method |
| CN107686630A (en) * | 2017-08-29 | 2018-02-13 | 河北科技大学 | A kind of preparation technology of vamp leftover pieces polymer composite and its application |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295835A (en) * | 2010-06-24 | 2011-12-28 | 上海凯波特种电缆料厂有限公司 | Zero-halogen flame-retardant thermoplastic polyurethane elastomer sheath material and preparation as well as application thereof |
-
2013
- 2013-11-04 CN CN201310539243.8A patent/CN103602057B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295835A (en) * | 2010-06-24 | 2011-12-28 | 上海凯波特种电缆料厂有限公司 | Zero-halogen flame-retardant thermoplastic polyurethane elastomer sheath material and preparation as well as application thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106738451A (en) * | 2016-11-09 | 2017-05-31 | 江苏亿亿和华筛分设备有限公司 | Polyurethane corner material reuse method |
| CN106519709A (en) * | 2016-11-25 | 2017-03-22 | 史学快 | Waste leather synthesis composition and production process |
| CN107686630A (en) * | 2017-08-29 | 2018-02-13 | 河北科技大学 | A kind of preparation technology of vamp leftover pieces polymer composite and its application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103602057B (en) | 2015-08-05 |
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