CN103059259A - Polyurethane micropore elastic rail pad and preparation method thereof - Google Patents
Polyurethane micropore elastic rail pad and preparation method thereof Download PDFInfo
- Publication number
- CN103059259A CN103059259A CN2013100259172A CN201310025917A CN103059259A CN 103059259 A CN103059259 A CN 103059259A CN 2013100259172 A CN2013100259172 A CN 2013100259172A CN 201310025917 A CN201310025917 A CN 201310025917A CN 103059259 A CN103059259 A CN 103059259A
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- CN
- China
- Prior art keywords
- polyether glycol
- weight
- consumption
- polyurethane micropore
- backing plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 18
- 239000004814 polyurethane Substances 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 23
- 229920000570 polyether Polymers 0.000 claims abstract description 23
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 239000006260 foam Substances 0.000 claims abstract description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 44
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 22
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 claims description 12
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 6
- 239000003921 oil Substances 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 238000001802 infusion Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 238000013016 damping Methods 0.000 abstract description 10
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010292 electrical insulation Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 abstract 2
- 239000013013 elastic material Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 1
- 238000005187 foaming Methods 0.000 abstract 1
- 239000004088 foaming agent Substances 0.000 abstract 1
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 229920005862 polyol Polymers 0.000 abstract 1
- 150000003077 polyols Chemical class 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Abstract
The invention discloses a polyurethane micropore elastic rail pad and a preparation method thereof. The method comprises the following steps of: pumping completely stirred polyether polyol and liquid state methylene diphenyl diisocyanate (MDI) together with a uniformly mixed catalyst, a foam homogenizing agent and a foaming agent into a reactor with a stirring device for foaming and carrying out chain extension, controlling the reaction temperature to 40-60 DEG C and controlling stirring speed to not less than 6,000r/min, injecting into a preheated module, controlling the retention time of a material in the module to not less than 10 minutes, curing a demoulded product for 3-4hours in a curing tank at a temperature of 95-100 DEG C, and then placing for more than 12hours at room temperature to obtain the finished polyurethane micropore elastic rail. A polyurethane micropore elastic material prepared by the invention has the advantages of excellent elasticity, strong shock absorbing capacity, good damping capacity and excellent damping effect, large absorbed energy in process of stress-strain, oil resistance, abrasion performance, resistance to chemical attack, radialization resistance and the like, and also has small compressive deformation, high mechanical strength and good electrical insulation property, so that the polyurethane micropore elastic material can be extensively used as a high-speed railway damping part.
Description
Technical field
The present invention relates to a kind of microporous polyurethane elastic track backing plate and preparation method thereof.
Background technology
The High-speed Railway Network of China is positive fast-developing at present, and high-speed railway is laid non-fragment orbit completely, to guarantee the high ride of circuit, improves the comfort level that the passenger takes.Because the lifting of train running speed has increased surging force and frequency of impact to track naturally, in order to guarantee the smooth running of train, previously used common damping part-rubber bearing can not be suitable for the speed-raising requirement.Therefore, the polyurethane material of Development and Production with higher damping performance is used for the high-speed railway damping part and just seems particularly important and urgent.
Summary of the invention
Main purpose of the present invention is to provide a kind of microporous polyurethane elastic track backing plate that can be used as the high-speed railway cushioning material and preparation method thereof.
The present invention adopts following technical scheme:
A kind of microporous polyurethane elastic track backing plate, made by following component:
Polyether glycol, its hydroxyl value are 30-60mg/g, are that 3 polyether glycol and the polyether glycol of functionality 2 form by functionality, and the weight ratio of the two is 1:2.3-6.5;
Liquid MDI, the weight ratio of itself and polyether glycol is 1.6-1.8:1;
Catalyzer, the mixture of employing triethylene diamine and dibutyl tin laurate, its consumption is the 0.1-1.2% of polyether glycol weight, the weight ratio of triethylene diamine and dibutyl tin laurate is 1:1-1.5;
All infusion adopts water-soluble silicon oil, and its consumption is the 0.1-1.2% of polyether glycol weight;
Whipping agent adopts deionized water, and its consumption is the 0.5-4.5% of polyether glycol weight.
Above-mentioned microporous polyurethane elastic track backing plate also includes antioxidant 1010, and its consumption is the 0.01-0.1% of polyether glycol weight.
The preparation method of above-mentioned microporous polyurethane elastic track backing plate: with polyether glycol and liquid MDI stir rear with having mixed catalyzer, all infusion, whipping agent pump in the reactor with whipping appts foam, chain extending reaction, temperature of reaction is controlled at 40-60 ℃, stirring velocity 〉=6000r/min, inject the mould of preheating, material is the residence time 〉=10min in mould, after the product depanning in 95-100 ℃ of curing box slaking 3-4h, place at normal temperatures again 12h above finished product.
The microporous polyurethane elastic track backing plate of the present invention's preparation has excellent elasticity, damping capaicty is strong, damping capacity is good, damping effect is excellent, and the energy that absorbs when stress-strain is large, has simultaneously the advantages such as oil resistant, abrasion performance, resistance to chemical attack, radiation hardness, compression set is little, physical strength is higher, and electrical insulation capability is good, can be widely used as the high-speed railway damping part.
Embodiment
Embodiment one
A kind of preparation method of microporous polyurethane elastic track backing plate comprises the steps:
It is 3 polyether glycol with 15 weight part functionality, 85 weight part functionality are that 2 polyether glycol and the liquid MDI of 170 weight parts mix, triethylene diamine with 0.15 weight part, 0.15 the dibutyl tin laurate of weight part, 0.2 the water-soluble silicon oil of weight part, 1.0 the deionized water of weight part pumps in the reactor with whipping appts and foams, chain extending reaction, temperature of reaction is controlled at 40-60 ℃, stirring velocity 〉=6000r/min, inject the mould of preheating, material is the residence time 〉=10min in mould, after the product depanning in 95-100 ℃ of curing box slaking 3-4h, place at normal temperatures again 12h above finished product.
The performance index that make product see Table one.
Embodiment two
A kind of preparation method of microporous polyurethane elastic track backing plate comprises the steps:
It is 3 polyether glycol with 25 weight part functionality, 75 weight part functionality are that 2 polyether glycol and the liquid MDI of 180 weight parts mix, triethylene diamine with 0.4 weight part, 0.6 the dibutyl tin laurate of weight part, 0.8 the water-soluble silicon oil of weight part, the antioxidant 1010 of the deionized water of 4 weight parts and 0.05 weight part pumps in the reactor with whipping appts and foams, chain extending reaction, temperature of reaction is controlled at 40-60 ℃, stirring velocity 〉=6000r/min, inject the mould of preheating, material is the residence time 〉=10min in mould, after the product depanning in 95-100 ℃ of curing box slaking 3-4h, place at normal temperatures again 12h above finished product.
The performance index that make product see Table one.
Table one product performance index
Above-mentioned only is the specific embodiment of the invention, but design concept of the present invention is not limited to this, allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should belong to the behavior of invading protection domain of the present invention.
Claims (3)
1. microporous polyurethane elastic track backing plate is characterized in that: made by following component:
Polyether glycol, its hydroxyl value are 30-60mg/g, are that 3 polyether glycol and the polyether glycol of functionality 2 form by functionality, and the weight ratio of the two is 1:2.3-6.5;
Liquid MDI, the weight ratio of itself and polyether glycol is 1.6-1.8:1;
Catalyzer, the mixture of employing triethylene diamine and dibutyl tin laurate, its consumption is the 0.1-1.2% of polyether glycol weight, the weight ratio of triethylene diamine and dibutyl tin laurate is 1:1-1.5;
All infusion adopts water-soluble silicon oil, and its consumption is the 0.1-1.2% of polyether glycol weight;
Whipping agent adopts deionized water, and its consumption is the 0.5-4.5% of polyether glycol weight.
2. a kind of microporous polyurethane elastic track backing plate as claimed in claim 1, it is characterized in that: also include antioxidant 1010, its consumption is the 0.01-0.1% of polyether glycol weight.
3. the preparation method of a microporous polyurethane elastic track backing plate claimed in claim 1, it is characterized in that: with polyether glycol and liquid MDI stir rear with having mixed catalyzer, all infusion, whipping agent pump in the reactor with whipping appts foam, chain extending reaction, temperature of reaction is controlled at 40-60 ℃, stirring velocity 〉=6000r/min, inject the mould of preheating, material is the residence time 〉=10min in mould, after the product depanning in 95-100 ℃ of curing box slaking 3-4h, place at normal temperatures again 12h above finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310025917.2A CN103059259B (en) | 2013-01-21 | 2013-01-21 | Polyurethane micropore elastic rail pad and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310025917.2A CN103059259B (en) | 2013-01-21 | 2013-01-21 | Polyurethane micropore elastic rail pad and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103059259A true CN103059259A (en) | 2013-04-24 |
| CN103059259B CN103059259B (en) | 2014-12-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310025917.2A Expired - Fee Related CN103059259B (en) | 2013-01-21 | 2013-01-21 | Polyurethane micropore elastic rail pad and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103059259B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104592744A (en) * | 2015-02-03 | 2015-05-06 | 东莞市鹏博盛实业有限公司 | Damping cushion block for high-speed railway and production method of damping cushion block |
| CN105348471A (en) * | 2015-11-17 | 2016-02-24 | 京嘉联创（北京）新材料技术有限公司 | Elastic pad plate capable of reducing and isolating vibration and preparation technology thereof |
| CN113831503A (en) * | 2021-10-20 | 2021-12-24 | 洛阳科博思新材料科技有限公司 | Elastomer for vibration damping mattress and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101031599A (en) * | 2004-09-28 | 2007-09-05 | 巴斯福股份公司 | Method for producing polyrethane soft foam matrials |
| CN101125909A (en) * | 2006-07-01 | 2008-02-20 | 拜尔材料科学股份公司 | Foamed solid polyurethane elastomers based on high-melting polyisocyanates, method for the production thereof and use thereof |
| CN102504175A (en) * | 2011-11-04 | 2012-06-20 | 北京科聚化工新材料有限公司 | Preparation method for low-density viscoelastic polyurethane foam |
-
2013
- 2013-01-21 CN CN201310025917.2A patent/CN103059259B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101031599A (en) * | 2004-09-28 | 2007-09-05 | 巴斯福股份公司 | Method for producing polyrethane soft foam matrials |
| CN101125909A (en) * | 2006-07-01 | 2008-02-20 | 拜尔材料科学股份公司 | Foamed solid polyurethane elastomers based on high-melting polyisocyanates, method for the production thereof and use thereof |
| CN102504175A (en) * | 2011-11-04 | 2012-06-20 | 北京科聚化工新材料有限公司 | Preparation method for low-density viscoelastic polyurethane foam |
Non-Patent Citations (1)
| Title |
|---|
| 黄自华等: "高速铁路用聚氨酯微孔弹性垫的制备与性能", 《特种橡胶制品》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104592744A (en) * | 2015-02-03 | 2015-05-06 | 东莞市鹏博盛实业有限公司 | Damping cushion block for high-speed railway and production method of damping cushion block |
| CN104592744B (en) * | 2015-02-03 | 2017-05-17 | 东莞市鹏博盛实业有限公司 | Damping cushion block for high-speed railway and production method of damping cushion block |
| CN105348471A (en) * | 2015-11-17 | 2016-02-24 | 京嘉联创（北京）新材料技术有限公司 | Elastic pad plate capable of reducing and isolating vibration and preparation technology thereof |
| CN113831503A (en) * | 2021-10-20 | 2021-12-24 | 洛阳科博思新材料科技有限公司 | Elastomer for vibration damping mattress and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN103059259B (en) | 2014-12-03 |
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Granted publication date: 20141203 |
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