CN104877103A - Method for manufacturing polyurethane elastomer damping plate for high-speed railway - Google Patents
Method for manufacturing polyurethane elastomer damping plate for high-speed railway Download PDFInfo
- Publication number
- CN104877103A CN104877103A CN201510358123.7A CN201510358123A CN104877103A CN 104877103 A CN104877103 A CN 104877103A CN 201510358123 A CN201510358123 A CN 201510358123A CN 104877103 A CN104877103 A CN 104877103A
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- Prior art keywords
- polyurethane elastomer
- preparation
- component
- vibration damper
- damper plate
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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
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation 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
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/4812—Mixtures of polyetherdiols with polyetherpolyols having at least three hydroxy groups
-
- 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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6685—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
-
- 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
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
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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)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention belongs to the field of the polyurethane technique and particularly relates to a method for manufacturing a polyurethane elastomer damping plate for a high-speed railway. The method comprises the following steps that polyether polyol A and polyether polyol B are evenly mixed, the temperature is increased, dewatering is conducted under the vacuum condition, the temperature is decreased, hexamethylene diisocyanate is added, even mixing is conducted, the temperature is increased for a reaction, and a prepolymer component A is obtained when it is detected that the isocyanate content ranges from 4% to 8%, the component A and a component B are mixed, a test piece is obtained through the reaction and forming after it is the milky white time, and then the polyurethane elastomer damping plate is obtained through vulcanization, wherein the component B comprises, by mass, 0.5-1 part of foaming agent, 0.2-0.5 part of amine catalyzer, 5-7 parts of chain extender, 0.5-1.5 parts of organosilicone stabilizer, and 0.05-0.2 part of tin catalyzer. According to the method for manufacturing the polyurethane elastomer damping plate for the high-speed railway, a polyurethane elastomer material can play a role in damping and buffering, the buffer performance is excellent, the tensile stress resistance and tear resistance are high, the mechanical property is good, the rigidity is high, and the polyurethane elastomer damping plate can be suitable for a wide temperature range.
Description
Technical field
The invention belongs to polyurethanes technology field, be specifically related to a kind of preparation method of polyurethane elastomer high ferro vibration damper plate.
Background technology
High-speed railway, in the fast development of China, is had higher requirement to railway vibration damper plate.Conventional base plate is made up of rubber, can not bear the impact of heavy haul train, and can significantly reduce along with the raising damping characteristics of rubber pad hardness.
CN201110129258.8 discloses a kind of biobased micro-porous polyurethane material and preparation method thereof, comprise component A preparation section, the preparation section of B component, component A, B component mixed processes: described component A preparation section is: by 20-41 weight part polyether glycol, 3-11 weight part chainextender, 0.01-0.52 weight parts water, 0.15-0.59 weight part silicone oil, 0.12-0.33 part by weight of catalyst, stirring is not less than 5 minutes, then carry out degassed when negative pressure, until vacuum tightness no longer changes, sealing is sealed up for safekeeping.
The technical problem of the formula of foregoing invention, preparation process and solution is all different from the present invention, and it can not solve technical problem solved by the invention.
Summary of the invention
The object of this invention is to provide a kind of hardness large, stretch-proof is torn, mechanical property, shock-absorbing capacity are excellent, adaptive temperature wide ranges, can provide the preparation method of the polyurethane elastomer high ferro vibration damper plate of damping shock absorption effect.
The preparation method of polyurethane elastomer high ferro vibration damper plate of the present invention, comprises the following steps:
(1) preparation of performed polymer component A:
Polyether glycol A and polyether glycol B is mixed by the mass ratio of 1:1 ~ 1.2, be warming up to 105 ~ 115 DEG C, dehydrated under vacuum 3 ~ 4h, then 40 ~ 50 DEG C are cooled to, add the hexamethylene diisocyanate that quality is 0.4 ~ 0.6 times of polyether glycol total mass, stir, be warming up to 80 ~ 90 DEG C of reactions 3 ~ 4 hours, detect isocyanate content 4 ~ 8%, obtain performed polymer component A;
(2) preparation of B component:
In mass fraction, each component is as follows:
Above-mentioned each component is mixed, for subsequent use;
(3) preparation of polyurethane elastomer:
Component A mixed with the mass ratio of B component by 10:1 ~ 2, pour in mould, mould remains on 60 ~ 70 DEG C, reach cream time after 15 seconds, cover mould, react under 10 ~ 13MPa pressure, shapingly obtain test piece, test piece sulfuration 24 ~ 25 hours at 70 ~ 80 DEG C, obtains finished product.
Described polyether glycol A is the DDL-1000 that the federal chemical Industrial Co., Ltd of moral letter produces, and its relative molecular mass is 500 ~ 1500, and functionality is 1.5 ~ 2.5.The urethane hardness that this polyether glycol sends is high, and stretch-proof tear resistance is excellent.
Described polyether glycol B is the polymer polyatomic alcohol GPOP-H45 that the federal chemical Industrial Co., Ltd of moral letter produces, and its relative molecular mass is 8000 ~ 8500, and functionality is 2.5 ~ 3.5, and solid content is 40%.The elastic polyurethane that this polyether glycol sends is good, and hardness is moderate.
Described whipping agent is water.
Described amines catalyst is the A33 that Yantai three and chemical reagent company limited produce.The reaction of this catalyzer to isocyanate group, water and polyether glycol has katalysis.
Described chainextender is MOCA.
Described organosilicon stablizer is the L-5333 that Dongguan City Guang Siyuan polyurethane material company limited produces.This silicone oil can make polyether glycol and B component better mix.
Described tin class catalyzer is stannous octoate.The reaction of this catalyzer to isocyanate group and polyether glycol has stronger katalysis.
Beneficial effect of the present invention is as follows:
The polyurethane elastomer material that the present invention makes can provide damping shock absorption effect, has excellent shock-absorbing capacity, stretch-proof tear resistance and mechanical property, and hardness is large, can adapt to wide temperature range.
Embodiment
Below in conjunction with embodiment, the present invention is described further.
Embodiment 1
The preparation method of the present embodiment polyurethane elastomer high ferro vibration damper plate, comprises the following steps:
(1) preparation of performed polymer component A:
DDL-1000 and GPOP-H45 is mixed by the mass ratio of 1:1, be warming up to 110 DEG C, dewater under high vacuum-0.08 ± 0.01MPa 3h, then 50 DEG C are cooled to, add the hexamethylene diisocyanate that quality is 0.5 times of polyether glycol total mass, stir, be warming up to 80 DEG C of reactions 3 hours, detecting isocyanate content is 6%, obtains performed polymer component A;
(2) preparation of B component: in mass fraction, each component is as follows:
Above-mentioned each component is mixed, for subsequent use;
(3) making of polyurethane elastomer: component A is mixed with the mass ratio of B component by 10:1, pour in mould, mould remains on 60 DEG C, cream time is reached after 15 seconds, cover mould, under 13MPa pressure, react shaping obtain test piece, test piece sulfuration 24 hours at 80 DEG C, obtains finished product.
Embodiment 2
The preparation method of the present embodiment polyurethane elastomer high ferro vibration damper plate, comprises the following steps:
(1) preparation of performed polymer component A:
DDL-1000 and GPOP-H45 is mixed by the mass ratio of 1:1.1, be warming up to 105 DEG C, dewater under high vacuum-0.08 ± 0.01MPa 4h, then 40 DEG C are cooled to, add the hexamethylene diisocyanate that quality is 0.6 times of polyether glycol total mass, stir, be warming up to 85 DEG C of reactions 4 hours, detecting isocyanate content is 4%, obtains performed polymer component A;
(2) preparation of B component: in mass fraction, each component is as follows:
Above-mentioned each component is mixed, for subsequent use;
(3) making of polyurethane elastomer: component A is mixed with the mass ratio of B component by 10:1.5, pour in mould, mould remains on 70 DEG C, cream time is reached after 15 seconds, cover mould, under 12MPa pressure, react shaping obtain test piece, test piece sulfuration 24.5 hours at 75 DEG C, obtains finished product.
Embodiment 3
The preparation method of the present embodiment polyurethane elastomer high ferro vibration damper plate, comprises the following steps:
(1) preparation of performed polymer component A:
DDL-1000 and GPOP-H45 is mixed by the mass ratio of 1:1.2, be warming up to 115 DEG C, dewater under high vacuum-0.08 ± 0.01MPa 3h, then 45 DEG C are cooled to, add the hexamethylene diisocyanate that quality is 0.4 times of polyether glycol total mass, stir, be warming up to 90 DEG C of reactions 3.5 hours, detecting isocyanate content is 8%, obtains performed polymer component A;
(2) preparation of B component: in mass fraction, each component is as follows:
Above-mentioned each component is mixed, for subsequent use;
(3) making of polyurethane elastomer: component A is mixed with the mass ratio of B component by 10:2, pour in mould, mould remains on 65 DEG C, cream time is reached after 15 seconds, cover mould, under 10MPa pressure, react shaping obtain test piece, test piece sulfuration 25 hours at 70 DEG C, obtains finished product.
Claims (8)
1. a preparation method for polyurethane elastomer high ferro vibration damper plate, is characterized in that comprising the following steps:
(1) preparation of performed polymer component A:
Polyether glycol A and polyether glycol B is mixed by the mass ratio of 1:1 ~ 1.2, be warming up to 105 ~ 115 DEG C, dehydrated under vacuum 3 ~ 4h, then 40 ~ 50 DEG C are cooled to, add the hexamethylene diisocyanate that quality is 0.4 ~ 0.6 times of polyether glycol total mass, stir, be warming up to 80 ~ 90 DEG C of reactions 3 ~ 4 hours, detect isocyanate content 4 ~ 8%, obtain performed polymer component A;
(2) preparation of B component:
In mass fraction, each component is as follows:
Above-mentioned each component is mixed, for subsequent use;
(3) preparation of polyurethane elastomer:
Component A mixed with the mass ratio of B component by 10:1 ~ 2, pour in mould, mould remains on 60 ~ 70 DEG C, reach cream time after 15 seconds, cover mould, react under 10 ~ 13MPa pressure, shapingly obtain test piece, test piece sulfuration 24 ~ 25 hours at 70 ~ 80 DEG C, obtains finished product.
2. the preparation method of polyurethane elastomer high ferro vibration damper plate according to claim 1, it is characterized in that: polyether glycol A is DDL-1000, its relative molecular mass is 500 ~ 1500, and functionality is 1.5 ~ 2.5.
3. the preparation method of polyurethane elastomer high ferro vibration damper plate according to claim 1, it is characterized in that: polyether glycol B is polymer polyatomic alcohol GPOP-H45, its relative molecular mass is 8000 ~ 8500, and functionality is 2.5 ~ 3.5, and solid content is 40%.
4. the preparation method of polyurethane elastomer high ferro vibration damper plate according to claim 1, is characterized in that: whipping agent is water.
5. the preparation method of polyurethane elastomer high ferro vibration damper plate according to claim 1, is characterized in that: amines catalyst is A33.
6. the preparation method of polyurethane elastomer high ferro vibration damper plate according to claim 1, is characterized in that: chainextender is MOCA.
7. the preparation method of polyurethane elastomer high ferro vibration damper plate according to claim 1, is characterized in that: organosilicon stablizer is L-5333.
8. the preparation method of polyurethane elastomer high ferro vibration damper plate according to claim 1, is characterized in that: tin class catalyzer is stannous octoate.
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| CN201510358123.7A CN104877103B (en) | 2015-06-25 | 2015-06-25 | The preparation method of polyurethane elastomer high ferro vibration damper plate |
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| CN201510358123.7A CN104877103B (en) | 2015-06-25 | 2015-06-25 | The preparation method of polyurethane elastomer high ferro vibration damper plate |
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| CN104877103B CN104877103B (en) | 2017-08-08 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384904A (en) * | 2015-12-24 | 2016-03-09 | 京嘉联创（北京）新材料技术有限公司 | Seismic isolation and reduction polyurethane resin and preparation and application method thereof |
| CN105669933A (en) * | 2016-01-15 | 2016-06-15 | 东南大学 | Preparation method of low-frequency vibration-damping polyurethane elastomer, as well as composite polyurethane auxiliary agent and preparation method thereof |
| CN106279616A (en) * | 2016-08-31 | 2017-01-04 | 佛山林至高分子材料科技有限公司 | A kind of super-elastic material and preparation method and application |
| CN107043450A (en) * | 2016-12-30 | 2017-08-15 | 中物功能材料研究院有限公司 | A kind of microcellular polyurethane elastomer vibration-absorptive material and preparation method thereof |
| CN108997555A (en) * | 2018-07-24 | 2018-12-14 | 中国铁道科学研究院集团有限公司金属及化学研究所 | A kind of railway freight-car axial direction urethane pad and its preparation method and application |
| CN109763422A (en) * | 2018-12-29 | 2019-05-17 | 万华节能科技集团股份有限公司 | A kind of joint filling structure and its construction technology with modified isocyanate buffer layer |
| CN109824845A (en) * | 2017-11-23 | 2019-05-31 | 北京市建筑工程研究院有限责任公司 | A kind of high-damping polyurethane damping elastomer material and preparation method thereof |
| CN109957090A (en) * | 2019-04-23 | 2019-07-02 | 张会仙 | A kind of preparation method of railroad track liquid rubber cushion blocking |
| CN110105521A (en) * | 2019-05-13 | 2019-08-09 | 张会仙 | A kind of railroad track liquid rubber cushion blocking and its application |
| CN115028795A (en) * | 2022-07-18 | 2022-09-09 | 广东韦博特声学技术有限公司 | Elastic closed-cell foaming vibration-damping polyurethane and preparation method thereof |
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| CN104341579A (en) * | 2014-10-27 | 2015-02-11 | 中国科学院长春应用化学研究所 | Method for preparing low-deformation polyurethane damping bumper block |
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| CN102250307A (en) * | 2011-05-18 | 2011-11-23 | 安徽绿能技术研究院 | Biobased micro-porous polyurethane material and preparation method thereof |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384904A (en) * | 2015-12-24 | 2016-03-09 | 京嘉联创（北京）新材料技术有限公司 | Seismic isolation and reduction polyurethane resin and preparation and application method thereof |
| CN105669933A (en) * | 2016-01-15 | 2016-06-15 | 东南大学 | Preparation method of low-frequency vibration-damping polyurethane elastomer, as well as composite polyurethane auxiliary agent and preparation method thereof |
| CN105669933B (en) * | 2016-01-15 | 2018-04-24 | 东南大学 | Low frequency vibration damping method for preparing polyurethane elastic body, composite polyurethane auxiliary agent and preparation method thereof |
| CN106279616A (en) * | 2016-08-31 | 2017-01-04 | 佛山林至高分子材料科技有限公司 | A kind of super-elastic material and preparation method and application |
| CN106279616B (en) * | 2016-08-31 | 2018-04-20 | 佛山林至高分子材料科技有限公司 | A kind of super-elastic material and preparation method and application |
| CN107043450A (en) * | 2016-12-30 | 2017-08-15 | 中物功能材料研究院有限公司 | A kind of microcellular polyurethane elastomer vibration-absorptive material and preparation method thereof |
| CN109824845A (en) * | 2017-11-23 | 2019-05-31 | 北京市建筑工程研究院有限责任公司 | A kind of high-damping polyurethane damping elastomer material and preparation method thereof |
| CN108997555A (en) * | 2018-07-24 | 2018-12-14 | 中国铁道科学研究院集团有限公司金属及化学研究所 | A kind of railway freight-car axial direction urethane pad and its preparation method and application |
| CN108997555B (en) * | 2018-07-24 | 2021-05-28 | 中国铁道科学研究院集团有限公司金属及化学研究所 | Railway wagon axial polyurethane pad and preparation method and application thereof |
| CN109763422A (en) * | 2018-12-29 | 2019-05-17 | 万华节能科技集团股份有限公司 | A kind of joint filling structure and its construction technology with modified isocyanate buffer layer |
| CN109957090A (en) * | 2019-04-23 | 2019-07-02 | 张会仙 | A kind of preparation method of railroad track liquid rubber cushion blocking |
| CN110105521A (en) * | 2019-05-13 | 2019-08-09 | 张会仙 | A kind of railroad track liquid rubber cushion blocking and its application |
| CN110105521B (en) * | 2019-05-13 | 2021-06-01 | 张会仙 | Liquid rubber vibration damping pad for railway track and application thereof |
| CN115028795A (en) * | 2022-07-18 | 2022-09-09 | 广东韦博特声学技术有限公司 | Elastic closed-cell foaming vibration-damping polyurethane and preparation method thereof |
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|---|---|
| CN104877103B (en) | 2017-08-08 |
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