CN103641976A - Method for preparing polyurethane foamed plastic from junked tire rubber powder - Google Patents
Method for preparing polyurethane foamed plastic from junked tire rubber powder Download PDFInfo
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- CN103641976A CN103641976A CN201310615610.8A CN201310615610A CN103641976A CN 103641976 A CN103641976 A CN 103641976A CN 201310615610 A CN201310615610 A CN 201310615610A CN 103641976 A CN103641976 A CN 103641976A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2101/00—Manufacture of cellular products
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
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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)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention relates to a method for preparing polyurethane foamed plastic from junked tire rubber powder, belonging to the field of recycling of junked tires. The invention provides a method for preparing polyurethane foamed plastic from junked tire rubber powder, and aims to enhance the thermoplasticity and heat resistance of the polyurethane foamed plastic and improve the mechanical properties of the polyurethane foamed plastic. The method is simple in production technique, easy to operate and suitable for mass production.
Description
Technical field
The present invention relates to a kind of method of utilizing waste tyre rubber powder to prepare polyurethane foam plastics, belong to junked tire and recycle field.
Background technology
Along with the development of automobile industry, the learies of doughnut is increasing year by year, estimates that the annual doughnut learies in the whole world is more than 1,500,000,000, and China is 8000-10,000 ten thousand/year.The major ingredient of doughnut is natural rubber.In today of petroleum resources shortage, natural rubber also becomes narrow resources, and price is constantly soaring, and the recycling of waste tyre rubber powder becomes the hot issue of the world today like this.
Utilize the material mixing such as waste-tyre rubber-powder and rubber, plastics, concrete to prepare novel material, as fields such as all kinds of pads such as machine pad, roadbed pad, cushion plate and mud guard, sound absorbent material, waterproof roll, waterproof paint, waterproof and sealing materials.Yet utilize waste-tyre rubber-powder to prepare polyurethane foam plastics and rarely have report.Developments in Polyurethane Foams is rapid in recent years, yet its thermotolerance (high temperature dimensional stability) and thermoplastic molding's property have certain limitation, the requirement that simple dependence regulates the structure of polyester or polyether glycol to realize different thermotolerances and thermoplastic molding's property also has certain difficulty.Patent utilization automobile waste-tyre rubber-powder of the present invention is prepared polyurethane foam plastics, and add new vulcanizing agent, whipping agent is prepared a kind of new polyurethane expanded plastic, this polyurethane foam plastics is widely used in the industries such as building, chemical industry, machinery.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of method of utilizing waste tyre rubber powder to prepare polyurethane foam plastics is provided, to improve thermoplasticity and the thermotolerance of polyurethane foam plastics, improve the mechanical property of polyurethane foam plastics simultaneously.The method production technique is simple, easy to operate, is suitable for producing in enormous quantities.The present invention produces and comprises the following steps:
(1) take 2-10t waste-tyre rubber-powder (80-120 order), 5-12t combined polyether glycol, tensio-active agent (5%-20% of waste-tyre rubber-powder quality); By junked tire powder (80-120 order) and combined polyether glycol mixing and stirring, stirring velocity is 400-800r/min;
(2) take 5-8t2,4-tolylene diisocyanate.Under constantly stirring, add the mixed system in step (1), in manual foaming machine, mix, mixing speed 1500-3500rpm, time 20-60s, controls temperature at 70-90 ° of C, prepares base polyurethane prepolymer for use as;
(3) prepolymer in step (2) is mixed with chainextender 100-300kg, stir, mixture is poured in foam box and foamed, after 40-90min, devan.After section, carry out performance test.
Urethane the performance test results, as shown in the table: in this table, thermotolerance is embodied by the lower dimension stability of high temperature (180 ° of C); Formability is embodied by rebound degree.
in Table 1.
?
In the present invention, said combined polyether glycol is commercially available prod.
In the present invention, said isocyanic ester is 1,6-hexamethylene diisocyanate, 2,4-tolylene diisocyanate, 2,6-tolylene diisocyanate, tetramethylene vulcabond, 4, the mixture of one or more in 4-phenylbenzene, polymethylene phenyl polyisocyanates, Isosorbide-5-Nitrae-Xylene Diisocyanate.
In the present invention, said chainextender is one or more the mixture in BDO, ethylene glycol, propylene glycol, glycol ether, neopentyl glycol, MOCA, thanomin, diethanolamine, trolamine, tri-isopropanolamine.
In the present invention, said tensio-active agent is one or more mixture of Sodium dodecylbenzene sulfonate, sodium lauryl sulphate, sodium laurylsulfate, dioctyl sodium sulfosuccinate, Sodium glycocholate.
the present invention has following beneficial effect:(1) the present invention by waste rubber powder well and urethane combine, solved waste-tyre rubber-powder and utilized problem to reduce again urethane rebound resilience at room temperature, improved the processability of urethane; (2) now during general production polyurethane foam, in only filling a prescription by change, in A component, the structure of polyester polyol or polyether glycol combines short chain and long-chain polyhydric alcohol, thereby adjust the second-order transition temperature of urethane soft or hard section, and then realize the raising of polyurethane heat resistant (high temperature dimensional stability) and formability, but rely on merely aforesaid method to have larger limitation to improving thermotolerance and the formability of urethane; Production technique provided by the invention, by utilizing waste-tyre rubber-powder, well strengthens the processability of urethane, has improved the thermotolerance of urethane; (3) because waste-tyre rubber-powder has certain strength and stiffness, so by adding waste-tyre rubber-powder, can improve the mechanical property of urethane.
Embodiment
Below in conjunction with specific embodiment, the present invention will be further described, but embodiment does not limit the present invention.
embodiment 1
Utilize waste-tyre rubber-powder to prepare a method for polyurethane foam plastics, concrete steps are:
(1) take 2t waste-tyre rubber-powder (80 order), 8t combined polyether glycol, tensio-active agent Sodium dodecylbenzene sulfonate (waste-tyre rubber-powder quality 5%); By junked tire powder (80 order) and combined polyether glycol mixing and stirring, stirring velocity is 400r/min;
(2) take 5t1,6-hexamethylene diisocyanate.Under constantly stirring, add the mixed system in step (1), in manual foaming machine, mix, mixing speed 1500rpm, time 30s, controls temperature at 90 ° of C, prepares base polyurethane prepolymer for use as;
(3) prepolymer in step (2) is mixed with chainextender MOCA100kg, stir, mixture is poured in foam box and foamed, after 40min, devan.After section, carry out performance test.
embodiment 2
Utilize waste-tyre rubber-powder to prepare a method for polyurethane foam plastics, concrete steps are:
(1) take 8t waste-tyre rubber-powder (100 order), 12t combined polyether glycol, tensio-active agent Sodium glycocholate (waste-tyre rubber-powder quality 10%); By junked tire powder (100 order) and combined polyether glycol mixing and stirring, stirring velocity is 400r/min;
(2) take 6t1,4-butylidene vulcabond.Under constantly stirring, add the mixed system in step (1), in manual foaming machine, mix, mixing speed 2000rpm, time 60s, controls temperature at 80 ° of C, prepares base polyurethane prepolymer for use as;
(3) prepolymer in step (2) is mixed with chainextender MOCA 200kg, stir, mixture is poured in foam box and foamed, after 60min, devan.After section, carry out performance test.
embodiment 3
Utilize waste-tyre rubber-powder to prepare a method for polyurethane foam plastics, concrete steps are:
(1) take 10t waste-tyre rubber-powder (120 order), 10t combined polyether glycol, tensio-active agent dioctyl sodium sulfosuccinate (waste-tyre rubber-powder quality 20%); By junked tire powder (120 order) and combined polyether glycol mixing and stirring, stirring velocity is 800r/min;
(2) take 8t polymethylene phenyl polyisocyanates.Under constantly stirring, add the mixed system in step (1), in manual foaming machine, mix, mixing speed 2000rpm, time 30s, controls temperature at 70 ° of C, prepares base polyurethane prepolymer for use as;
(3) prepolymer in step (2) is mixed with chainextender thanomin 300kg, stir, mixture is poured in foam box and foamed, after 90min, devan.After section, carry out performance test.
in Table 2
Claims (4)
1. utilize waste-tyre rubber-powder to prepare a method for polyurethane foam plastics, it is characterized in that concrete steps are:
(1) take 2-10t waste-tyre rubber-powder, 80-120 order, 5-12t combined polyether glycol, tensio-active agent, the 5%-20% of waste-tyre rubber-powder quality; By junked tire powder 80-120 order, with combined polyether glycol mixing and stirring, stirring velocity is 400-800r/min;
(2) take 5-8t2,4-tolylene diisocyanate, adds the mixed system in step (1) under constantly stirring, in manual foaming machine, mix mixing speed 1500-3500rpm, time 20-60s, control temperature at 70-90 ° of C, prepare base polyurethane prepolymer for use as;
(3) prepolymer in step (2) is mixed with chainextender 100-300kg, stir, mixture is poured in foam box and foamed, after 40-90min, devan, after section, carry out performance test.
2. utilize as claimed in claim 1 waste-tyre rubber-powder to prepare the method for polyurethane foam plastics, it is characterized in that concrete steps are:
(1) take 2t waste-tyre rubber-powder 80 orders, 8t combined polyether glycol, tensio-active agent Sodium dodecylbenzene sulfonate, 5% of waste-tyre rubber-powder quality; By junked tire powder 80 orders and combined polyether glycol mixing and stirring, stirring velocity is 400r/min;
(2) take 5t1,6-hexamethylene diisocyanate, adds the mixed system in step (1) under constantly stirring, in manual foaming machine, mix, and mixing speed 1500rpm, time 30s, controls temperature at 90 ° of C, prepares base polyurethane prepolymer for use as;
(3) prepolymer in step (2) is mixed with chainextender MOCA100kg, stir, mixture is poured in foam box and foamed, after 40min, devan, after section, carry out performance test.
3. utilize as claimed in claim 1 waste-tyre rubber-powder to prepare the method for polyurethane foam plastics, it is characterized in that concrete steps are:
(1) take 8t waste-tyre rubber-powder 100 orders, 12t combined polyether glycol, tensio-active agent Sodium glycocholate, 10% of waste-tyre rubber-powder quality; By junked tire powder 100 orders and combined polyether glycol mixing and stirring, stirring velocity is 400r/min;
(2) take 6t1,4-butylidene vulcabond, adds the mixed system in step (1) under constantly stirring, in manual foaming machine, mix, and mixing speed 2000rpm, time 60s, controls temperature at 80 ° of C, prepares base polyurethane prepolymer for use as;
(3) prepolymer in step (2) is mixed with chainextender MOCA 200kg, stir, mixture is poured in foam box and foamed, after 60min, devan, after section, carry out performance test.
4. utilize as claimed in claim 1 waste-tyre rubber-powder to prepare the method for polyurethane foam plastics, it is characterized in that concrete steps are:
(1) take 10t waste-tyre rubber-powder 120 orders, 10t combined polyether glycol, tensio-active agent dioctyl sodium sulfosuccinate, 20% of waste-tyre rubber-powder quality; By junked tire powder 120 orders and combined polyether glycol mixing and stirring, stirring velocity is 800r/min;
(2) take 8t polymethylene phenyl polyisocyanates, under constantly stirring, add the mixed system in step (1), in manual foaming machine, mix, mixing speed 2000rpm, time 30s, controls temperature at 70 ° of C, prepares base polyurethane prepolymer for use as;
(3) prepolymer in step (2) is mixed with chainextender thanomin 300kg, stir, mixture is poured in foam box and foamed, after 90min, devan, after section, carry out performance test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310615610.8A CN103641976A (en) | 2013-11-28 | 2013-11-28 | Method for preparing polyurethane foamed plastic from junked tire rubber powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310615610.8A CN103641976A (en) | 2013-11-28 | 2013-11-28 | Method for preparing polyurethane foamed plastic from junked tire rubber powder |
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| CN103641976A true CN103641976A (en) | 2014-03-19 |
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| CN201310615610.8A Pending CN103641976A (en) | 2013-11-28 | 2013-11-28 | Method for preparing polyurethane foamed plastic from junked tire rubber powder |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105542103A (en) * | 2015-12-23 | 2016-05-04 | 西南科技大学 | A composite foaming insulating material and a preparing method thereof |
| CN106307789A (en) * | 2016-11-17 | 2017-01-11 | 无锡市长安曙光手套厂 | Poly(ether-ester) type polyurethane microporous elastomer sole |
| CN106674671A (en) * | 2016-11-29 | 2017-05-17 | 安徽索亚装饰材料有限公司 | Preparation method for improving mechanical property of polyurethane insulation foaming material |
| CN111500053A (en) * | 2020-04-20 | 2020-08-07 | 江苏建筑职业技术学院 | Method for preparing composite heat-preservation vibration-damping material by regenerating elastomer waste |
| CN112980177A (en) * | 2021-03-01 | 2021-06-18 | 同济大学 | Waterproof vibration isolation microporous elastomer material for high-speed rail roadbed and structure thereof |
| CN114031929A (en) * | 2021-10-08 | 2022-02-11 | 徐定盛 | PU foaming bicycle tire recovery process |
| CN115403917A (en) * | 2022-08-24 | 2022-11-29 | 山西科灜科技有限公司 | Waste polyurethane composition for beautifying tree pits |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1243137A (en) * | 1998-07-29 | 2000-02-02 | 东洋运动施设株式会社 | Elastic paving material and paving method thereof |
| CN102391639A (en) * | 2011-09-30 | 2012-03-28 | 常熟市星源金属涂层厂 | Polyurethane and rubber foamed compound material and preparation method thereof |
| CN103059247A (en) * | 2012-12-21 | 2013-04-24 | 浙江华峰新材料股份有限公司 | Method for filling polyurethane sole with waste rubber |
-
2013
- 2013-11-28 CN CN201310615610.8A patent/CN103641976A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1243137A (en) * | 1998-07-29 | 2000-02-02 | 东洋运动施设株式会社 | Elastic paving material and paving method thereof |
| CN102391639A (en) * | 2011-09-30 | 2012-03-28 | 常熟市星源金属涂层厂 | Polyurethane and rubber foamed compound material and preparation method thereof |
| CN103059247A (en) * | 2012-12-21 | 2013-04-24 | 浙江华峰新材料股份有限公司 | Method for filling polyurethane sole with waste rubber |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105542103A (en) * | 2015-12-23 | 2016-05-04 | 西南科技大学 | A composite foaming insulating material and a preparing method thereof |
| CN105542103B (en) * | 2015-12-23 | 2018-11-02 | 西南科技大学 | A kind of composite foamed thermal insulation material and preparation method thereof |
| CN106307789A (en) * | 2016-11-17 | 2017-01-11 | 无锡市长安曙光手套厂 | Poly(ether-ester) type polyurethane microporous elastomer sole |
| CN106674671A (en) * | 2016-11-29 | 2017-05-17 | 安徽索亚装饰材料有限公司 | Preparation method for improving mechanical property of polyurethane insulation foaming material |
| CN111500053A (en) * | 2020-04-20 | 2020-08-07 | 江苏建筑职业技术学院 | Method for preparing composite heat-preservation vibration-damping material by regenerating elastomer waste |
| CN112980177A (en) * | 2021-03-01 | 2021-06-18 | 同济大学 | Waterproof vibration isolation microporous elastomer material for high-speed rail roadbed and structure thereof |
| CN114031929A (en) * | 2021-10-08 | 2022-02-11 | 徐定盛 | PU foaming bicycle tire recovery process |
| CN115403917A (en) * | 2022-08-24 | 2022-11-29 | 山西科灜科技有限公司 | Waste polyurethane composition for beautifying tree pits |
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Application publication date: 20140319 |