CN101768249B - Filling resin for poured and cured type height-adjustable supports and preparing method thereof - Google Patents
Filling resin for poured and cured type height-adjustable supports and preparing method thereof Download PDFInfo
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- CN101768249B CN101768249B CN 200910227785 CN200910227785A CN101768249B CN 101768249 B CN101768249 B CN 101768249B CN 200910227785 CN200910227785 CN 200910227785 CN 200910227785 A CN200910227785 A CN 200910227785A CN 101768249 B CN101768249 B CN 101768249B
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Abstract
The present invention relates to a filling resin for poured and cured type height-adjustable supports and a preparing method thereof, belonging to the technical field of high molecular materials. The resin consists of a constituent A and a constituent B. The constituent A is a polyurethane prepolymer consisting of the following constituents based on the weight content: 100 shares of polyether or polyester polyol, 16 to 60 shares of isocyanate, 0.1 to 1 share of catalyst and 0.1 to 0.5 share of silicone defoaming agent. The molecular weight of the polyether or polyester polyol is from 500 to 4000, preferably from 1000 to 2000. The constituent B is a chain extender consisting of aromatic diamine chain extender. The mass ratio of the constituent A to the constituent B is 10: 1 to 0.8:1. The present invention has the advantages that the polyurethane resin does not need to be heated when used for filling height-adjustable supports, and the operating properties are excellent; the resin is cured at ambient temperature, and the curing time can be freely adjusted; the resin cured has the characteristics of high modulus, high stability, low shrinkage, etc.
Description
Technical field
The invention belongs to technical field of polymer materials, relate to a kind of filling resin for poured and cured type height-adjustable supports and preparation method thereof, can be applicable to the bridge pad field.
Background technology
In railroad bridge, creep owing to construction error, concrete are inhomogeneous or factor affecting such as geology reason, can cause pier or ground the non-uniform settling phenomenon to occur, stationarity, security and comfortableness thereby influence is open to traffic.To this problem, solution commonly used at present is between beam body and pier, height-adjustable supports to be installed.
At present domestic and international employed height-adjustable supports mainly contains four kinds of pad-board type, spiral, Wedge-type and injection cured types.The pad-board type height-adjustable supports is simple and reliable, thereby uses more; Spiral and Wedge-type height-adjustable supports only uses (such as the magnetic-levitation bridge) on some special engineerings; Injecting cured type height-adjustable supports has a small amount of use abroad, is also really used at home.Inject cured type height-adjustable supports, have and to realize repeatedly stepless heightening, and need not advantage such as Special Equipment back timber, will become the developing direction of height-adjustable supports.
Inject the employed polymer packing material of cured type height-adjustable supports, external multiselect is used Zylox, but its cost is high, tensile strength is low, is not suitable for large-scale promotion application in the railroad bridge bearing; Domestic have to mention in a small amount of report use casting PU as packing material, but all needs on-the-spot heating, operability is poor, and does not have substantive the report.
Summary of the invention
The object of the present invention is to provide a kind of filling resin for poured and cured type height-adjustable supports and preparation method thereof.
Adopt following technical scheme for accomplishing the present invention of invention task:
A kind of filling resin for poured and cured type height-adjustable supports; Said resin is a urethane resin, is made up of A, B two components, and the A component is a polyurethane prepolymer; The content meter is composed of the following components by weight: 100 parts of polyethers or polyester polyols; 16～60 parts of isocyanic ester, 0.1～1 part of catalyzer, 0.1～0.5 part of silicone antifoam agent; The B component is a chainextender, is made up of the aromatic diamines chainextender; The mass ratio of A and B component is 10: 1～0.8: 1.
Above-mentioned filling resin for poured and cured type height-adjustable supports, said polyether glycol, polyester polyol molecular weight are 500～4000, preferred molecular weight is 1000～2000; Described polyether glycol can be polyoxytrimethylene divalent alcohol, polyoxyethylene divalent alcohol, THF homopolymer divalent alcohol, and described polyester polyol can be polyethylene glycol adipate divalent alcohol, poly adipate succinic acid ester divalent alcohol, polycaprolactone divalent alcohol.
Above-mentioned filling resin for poured and cured type height-adjustable supports, said isocyanic ester are tolylene diisocyanate.
Above-mentioned filling resin for poured and cured type height-adjustable supports, said catalyzer are a kind of in stannous octoate or the dibutyl tin laurate in the organic tin catalyzer.
Above-mentioned filling resin for poured and cured type height-adjustable supports; Said chainextender is the aromatic diamines chainextender, like 3,3 '-two chloro-4; 4 '-ditan diamines, diethyl toluene diamine, diformazan sulfenyl tolylene diamine, 4; 4 '-methylene-bis-3-chloro-2, the mixture of one or more in the 6-Diethyl Aniline, preferred multiple chainextender is used; Wherein, 3,3 '-two chloro-4,4 '-ditan diamines and 4,4 '-methylene-bis-3-chloro-2, the 6-Diethyl Aniline need use dinethylformamide to dissolve as solvent before use.
Inject the preparation method of cured type height-adjustable supports, comprise the steps: with Polyurethane Filling Resin in Aqueous
1) preparation of A component: in the there-necked flask that whisking appliance, TM are housed, add polyethers or polyester polyol, be warming up to 100～130 ℃ under the whipped state, keep vacuum pressure-vacuumized below the 0.098MPa 1～3 hour, be cooled to 50～60 ℃ then; Add isocyanic ester, catalyzer and silicone antifoam agent, temperature of reaction is controlled at 70～90 ℃, and reaction was kept 0.5-6 hour; After reaction finishes, be cooled to 60 ℃ subsequent use with bottom discharge;
2) preparation of B component: one or both aromatic diamines chainextenders are subsequent use by 5: 1～1: 5 the even back of mixed.
3) preparation of potting resin: at room temperature, be 10: 1～0.8: 1 thorough mixing with A component and B component according to mass ratio, mixing time is 5～10 minutes, and mixing the back material viscosity is 1000～30000mPas.
The invention provides a kind of filling resin for poured and cured type height-adjustable supports and preparation method thereof, compared with prior art have the following advantages:
Need not heating when 1) this urethane resin is filled height-adjustable supports, processing property is good;
2) self-vulcanizing, and can freely adjust set time;
3) have characteristics such as high-modulus, high stability and low-shrinkage after the curing.
Embodiment
Below provide specific embodiment of the present invention and come further explain the present invention, this embodiment further specifies what invent, and does not mean that restriction the present invention.
Umber described in following examples is weight part.
Embodiment 1:
Take by weighing 100 parts of polyoxytrimethylene divalent alcohol (PPG2000); Put into clean there-necked flask, warming while stirring to 110 ℃, vacuum hydro-extraction 1 hour; Add 27.1 parts of tolylene diisocyanates (T-80), 1.0 parts of dibutyl tin laurates, 0.5 part of silicone antifoam agent (BYK028) when being cooled to 50 ℃; Stirring is warming up to 80 ℃ fast, reacts to be cooled to after 2 hours to obtain the A component below 60 ℃, and isocyanate terminated basic content is 7.0%.
Take by weighing 45.7 part 3,3 '-two chloro-4,4 '-ditan diamines (MOCA), be dissolved in 80 parts of dinethylformamide solvents, treat that the dissolving back that finishes obtains the B component to wherein adding 9.1 parts of diethyl toluene diamines (DETDA), mixing.
Get above-mentioned A component and B component and at room temperature mixed 5～8 minutes, import in the HPP, be packed into the height-adjustable supports from inlet.Be 30 minutes working life after A, B component were mixed, and be 80 minutes set time.
Embodiment 2
Take by weighing 100 parts of THF homopolymer divalent alcohol (PTMG2000); Put into clean there-necked flask, warming while stirring to 120 ℃, vacuum hydro-extraction 2 hours; Add 25.7 parts of tolylene diisocyanates (T-80), 0.1 part of dibutyl tin laurate, 0.4 part of silicone antifoam agent (BYK028) when being cooled to 60 ℃; Stirring is warming up to 80 ℃ fast, reacts to be cooled to after 2 hours to obtain the A component below 60 ℃, and isocyanate terminated basic content is 6.5%.
Take by weighing 42.1 part 3,3 '-two chloro-4,4 '-ditan diamines (MOCA), be dissolved in 80 parts of dinethylformamide solvents, treat that the dissolving back that finishes obtains the B component to wherein adding 10.5 parts of diethyl toluene diamines (DETDA), mixing.
Get above-mentioned A component and B component and at room temperature mixed 5～10 minutes, import in the HPP, be packed into the height-adjustable supports from inlet.Be 25 minutes working life after A, B component were mixed, and be 70 minutes set time.
Embodiment 3
Take by weighing 100 parts of poly adipate succinic acid ester divalent alcohol (PBA2000),, put into clean there-necked flask; Warming while stirring to 130 ℃; Vacuum hydro-extraction 3 hours adds 22.7 parts of tolylene diisocyanates (T-80), 0.3 part of dibutyl tin laurate, 0.3 part of silicone antifoam agent (BYK028) when being cooled to 50 ℃, stir fast and be warming up to 80 ℃; React to be cooled to after 4 hours and obtain the A component below 60 ℃, isocyanate terminated basic content is 5.5%.
Take by weighing 22.3 part 3,3 '-two chloro-4,4 '-ditan diamines (MOCA), be dissolved in 50 parts of dinethylformamide solvents, treat that the dissolving back that finishes obtains the B component to wherein adding 22.3 parts of diformazan sulfenyl tolylene diamines (DMTDA), mixing.
Get above-mentioned A component and B component and at room temperature mixed 5～10 minutes, import in the HPP, be packed into the height-adjustable supports from inlet.Be 40 minutes working life after A, B component were mixed, and be 90 minutes set time.
Embodiment 4
Take by weighing 100 parts of polyethylene glycol adipate divalent alcohol (PEA1000), put into clean there-necked flask, warming while stirring to 130 ℃; Vacuum hydro-extraction 3 hours; Add 29.5 parts of 2,4 toluene diisocyanates (T-100), 0.5 part of stannous octoate, 0.2 part of silicone antifoam agent (BYK028) when being cooled to 50 ℃, stir fast and be warming up to 80 ℃; React to be cooled to after 2 hours and obtain the A component below 60 ℃, isocyanate terminated basic content is 4.5%.
Take by weighing 22.4 part 4,4 '-methylene-bis-3-chloro-2,6-Diethyl Aniline (M-CDEA) is dissolved in 50 parts of dinethylformamide solvents, treats that the dissolving back that finishes obtains the B component to wherein adding 22.4 parts of diformazan sulfenyl tolylene diamines (DMTDA), mixing.
Get above-mentioned A component and B component and at room temperature mixed 5～8 minutes, import in the HPP, be packed into the height-adjustable supports from inlet.Be 20 minutes working life after A, B component were mixed, and be 50 minutes set time.
Embodiment 5
Take by weighing 100 parts of polycaprolactone divalent alcohol (PCL1000), put into clean there-necked flask, warming while stirring to 130 ℃; Vacuum hydro-extraction 3 hours; Add 28.0 parts of 2,4 toluene diisocyanates (T-100), 0.7 part of stannous octoate, 0.1 part of silicone antifoam agent (BYK028) when being cooled to 60 ℃, stir fast and be warming up to 80 ℃; React to be cooled to after 1 hour and obtain the A component below 60 ℃, isocyanate terminated basic content is 4.0%.
Take by weighing 26.0 parts of diformazan sulfenyl tolylene diamines (DMTDA) and 5.2 parts of diethyl toluene diamines (DETDA) respectively, mix and obtain the B component.
Get above-mentioned A component and B component and at room temperature mixed 5 minutes, import in the HPP, be packed into the height-adjustable supports from inlet.Be 15 minutes working life after A, B component were mixed, and be 40 minutes set time.
Embodiment 6
Take by weighing 100 parts of polyoxyethylene divalent alcohol (PEG1000), put into clean there-necked flask, warming while stirring to 110 ℃; Vacuum hydro-extraction 1 hour; Add 25.2 parts of 2,4 toluene diisocyanates (T-100), 1.0 parts of stannous octoates, 0.1 part of silicone antifoam agent (BYK028) when being cooled to 50 ℃, stir fast and be warming up to 80 ℃; React to be cooled to after 4 hours and obtain the A component below 60 ℃, isocyanate terminated basic content is 3.0%.
Take by weighing 19.8 parts of diethyl toluene diamines (DETDA), as the B component.
Get above-mentioned A component and B component and at room temperature mixed 5 minutes, import in the HPP, be packed into the height-adjustable supports from inlet.Be 10 minutes working life after A, B component were mixed, and be 20 minutes set time.
Claims (2)
1. the preparation method of a filling resin for poured and cured type height-adjustable supports, described potting resin is a urethane resin, is made up of A, B two components; Wherein, Described A component is a polyurethane prepolymer, and the content meter is composed of the following components by weight: 100 parts of polyether glycol or polyester polyols, 16～60 parts of isocyanic ester; 0.1～1 part of catalyzer, 0.1～0.5 part of silicone antifoam agent; Said polyether glycol, polyester polyol molecular weight are 500～4000; Said isocyanic ester is a tolylene diisocyanate; Said catalyzer is a kind of in stannous octoate or the dibutyl tin laurate in the organic tin catalyzer; The B component is a chainextender, is made up of the aromatic diamines chainextender; Being prepared as in the there-necked flask that whisking appliance, TM are housed of A component; Add polyether glycol or polyester polyol; Be warming up to 100～130 ℃ under the whipped state, keep vacuum pressure-vacuumized below the 0.098MPa 1～3 hour, be cooled to 50～60 ℃ then; Add isocyanic ester, catalyzer and silicone antifoam agent, temperature of reaction is controlled at 70～90 ℃, and reaction was kept 0.5-6 hour; After reaction finishes, be cooled to 60 ℃ subsequent use with bottom discharge; The B component be prepared as with two kinds of aromatic diamines chainextenders mixed in 5: 1 in proportion～1: 5 the back subsequent use; Described chainextender be 3,3 '-two chloro-4,4 '-ditan diamines, diethyl toluene diamine, diformazan sulfenyl tolylene diamine, 4,4 '-methylene-bis-3-chloro-2, the 6-Diethyl Aniline; Wherein, 3,3 '-two chloro-4,4 '-ditan diamines and 4,4 '-methylene-bis-3-chloro-2, the 6-Diethyl Aniline need use dinethylformamide to dissolve as solvent before use; Being prepared as at room temperature of potting resin is 10: 1～0.8: 1 thorough mixing with A component and B component according to mass ratio, and mixing time is 5～10 minutes, and mixing the back material viscosity is 1000～30000mPas.
2. the preparation method of a kind of filling resin for poured and cured type height-adjustable supports according to claim 1, it is characterized in that: said polyether glycol, polyester polyol molecular weight are 1000～2000.
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| CN 200910227785 CN101768249B (en) | 2009-12-30 | 2009-12-30 | Filling resin for poured and cured type height-adjustable supports and preparing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910227785 CN101768249B (en) | 2009-12-30 | 2009-12-30 | Filling resin for poured and cured type height-adjustable supports and preparing method thereof |
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| CN101768249A CN101768249A (en) | 2010-07-07 |
| CN101768249B true CN101768249B (en) | 2012-08-22 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102336886A (en) * | 2011-07-05 | 2012-02-01 | 嵊州市科鼎聚氨酯制品厂 | Polyurethane for transmission friction wheels and preparation method thereof |
| CN103833953B (en) * | 2014-03-03 | 2016-08-17 | 黎明化工研究设计院有限责任公司 | A kind of polyurethane resin for filling bridge height-adjustable supports and preparation method thereof and construction method |
| CN104530381A (en) * | 2014-12-29 | 2015-04-22 | 成都瑞吉龙科技有限责任公司 | Coated insulating material for overall insulation of railway switch installation device |
| CN108708282B (en) * | 2018-05-22 | 2020-05-05 | 衡橡科技股份有限公司 | Method for heightening and leveling support |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067442A (en) * | 1991-06-04 | 1992-12-30 | 浙江省三门聚氨酯制品厂 | The production method of double-component polyurethane decorative paint for leather |
| CN1425726A (en) * | 2002-12-30 | 2003-06-25 | 华南理工大学 | Polyurethane water dispersion and its preparing method |
| CN101544740A (en) * | 2009-04-30 | 2009-09-30 | 胡旻辉 | Molded normal temperature curing urethane resin composition and preparation method thereof |
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2009
- 2009-12-30 CN CN 200910227785 patent/CN101768249B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067442A (en) * | 1991-06-04 | 1992-12-30 | 浙江省三门聚氨酯制品厂 | The production method of double-component polyurethane decorative paint for leather |
| CN1425726A (en) * | 2002-12-30 | 2003-06-25 | 华南理工大学 | Polyurethane water dispersion and its preparing method |
| CN101544740A (en) * | 2009-04-30 | 2009-09-30 | 胡旻辉 | Molded normal temperature curing urethane resin composition and preparation method thereof |
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Address after: 471000, Binhe Road, hi tech Development Zone, Henan, Luoyang, 32 Patentee after: CSSC Shuangrui (Luoyang) special equipment Co.,Ltd. Address before: 471000, Binhe Road, hi tech Development Zone, Henan, Luoyang, 32 Patentee before: LUOYANG SUNRUI SPECIAL EQUIPMENT Co.,Ltd. |