CN102719084A - Polyurethane elastomer for molds and manufacturing method of polyurethane elastomer - Google Patents
Polyurethane elastomer for molds and manufacturing method of polyurethane elastomer Download PDFInfo
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- CN102719084A CN102719084A CN2012102179089A CN201210217908A CN102719084A CN 102719084 A CN102719084 A CN 102719084A CN 2012102179089 A CN2012102179089 A CN 2012102179089A CN 201210217908 A CN201210217908 A CN 201210217908A CN 102719084 A CN102719084 A CN 102719084A
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- CN
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- Prior art keywords
- component
- polyether glycol
- polyurethane elastomer
- mould
- molecular weight
- 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
- 229920003225 polyurethane elastomer Polymers 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title abstract description 8
- 229920000570 polyether Polymers 0.000 claims abstract description 48
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 16
- IBOFVQJTBBUKMU-UHFFFAOYSA-N 4,4'-methylene-bis-(2-chloroaniline) Chemical compound C1=C(Cl)C(N)=CC=C1CC1=CC=C(N)C(Cl)=C1 IBOFVQJTBBUKMU-UHFFFAOYSA-N 0.000 claims abstract description 11
- 241001112258 Moca Species 0.000 claims abstract description 10
- 239000012974 tin catalyst Substances 0.000 claims abstract description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 62
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 31
- 239000000203 mixture Substances 0.000 claims description 11
- 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 claims description 10
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 8
- JQVDAXLFBXTEQA-UHFFFAOYSA-N dibutylamine Chemical compound CCCCNCCCC JQVDAXLFBXTEQA-UHFFFAOYSA-N 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 229920001195 polyisoprene Polymers 0.000 claims description 4
- 150000005846 sugar alcohols Polymers 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- 239000000047 product Substances 0.000 claims description 3
- 239000000376 reactant Substances 0.000 claims description 3
- 150000002334 glycols Chemical class 0.000 claims description 2
- XRYSCSFJNUNNAU-UHFFFAOYSA-N n-chloro-n-phenylaniline Chemical group C=1C=CC=CC=1N(Cl)C1=CC=CC=C1 XRYSCSFJNUNNAU-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005498 polishing Methods 0.000 abstract description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract 3
- 229920005862 polyol Polymers 0.000 abstract 3
- 150000003077 polyols Chemical class 0.000 abstract 3
- 238000004140 cleaning Methods 0.000 abstract 1
- CZZYITDELCSZES-UHFFFAOYSA-N diphenylmethane Chemical compound C=1C=CC=CC=1CC1=CC=CC=C1 CZZYITDELCSZES-UHFFFAOYSA-N 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- 238000005266 casting Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- HIFVAOIJYDXIJG-UHFFFAOYSA-N benzylbenzene;isocyanic acid Chemical class N=C=O.N=C=O.C=1C=CC=CC=1CC1=CC=CC=C1 HIFVAOIJYDXIJG-UHFFFAOYSA-N 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920003987 resole Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Polyurethanes Or Polyureas (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to mold materials and particularly relates to a polyurethane elastomer for molds and a manufacturing method of the polyurethane elastomer. The polyurethane elastomer is good in polishing degree, abrasive resistance and corrosion resistance and capable of maintaining mechanical properties of the molds, simplifying processing procedures of the molds and easily cleaning the molds and is manufactured by mixing a component A and a component B. The polyurethane elastomer for the molds is characterized in that the component A is a quasi-prepolymer ingredient and is composed of polyether polyol, diphenyl methane diisocynate and toluene diisocynate, the component B is composed of 3,3'-dichloro-4,4'-diaminodiphenylmethane (MOCA), high rebound polyether, polyether polyol, slow rebound polyether polyol and a tin catalyst, and the component A and the component B are mixed according to the ratio of 1: 1. The polyurethane elastomer for the molds has the advantages of being low in cost, high in smooth finish, stable in size, easy to demold and the like.
Description
Technical field
The present invention relates to moulding stock, a kind of specifically can when keep the mould mechanical property, the simplification Mould Machining operation, and have good polishing degree, wear resistance, and the mould of corrosion-resistant, Yi Qingmo is with polyurethane elastomer and method for making thereof.
Background technology
As everyone knows; Press the difference of the material of institute's moulding; Mould can be divided into metal die and nonmetal mould, and metal die is divided into casting mould, forging mold again, and nonmetal mould is divided into mould of plastics, inorganic non-metallic mould again; And according to the difference of the material of mould own, mould can be divided into sand mold mould, metal die, vacuum mold, paraffin mould or the like again.At present, known normal pressure moulding stock is most uses Zylox, epoxy resin, nylon 66, resol.Tetrafluoroethylene, materials such as low melting point alloy according to different separately environments for use, respectively have the characteristics of oneself; But on the whole, the cost of manufacture of existing mould is high, and production process is complicated, and mechanical property changes greatly; Smooth finish is limited, exists processing charges high, wears no resistance, and polishability is poor; Not corrosion-resistant, be difficult for clear mould, defective such as repeating utilization factor is low.
Summary of the invention
The present invention is in order to overcome the defective of existing normal pressure moulding stock; This is bright to provide a kind of basic demand that can not only satisfy the mechanical property of mould itself, and the mould of the direct casting of employing, ambient cure of having simplified the manufacturing procedure of die production is with polyurethane elastomer and method for making thereof.
The present invention's technical scheme that is adopted of dealing with problems is:
A kind of mould is used polyurethane elastomer, by A, the two components of B in groups, it is characterized in that the A component is the semi-prepolymer composition, by polyether glycol, and diphenylmethanediisocyanate, tolylene diisocyanate is formed; The B component is made up of MOCA, high resilience polyethers, polyether glycol, slow resilience polyether glycol and tin catalyst, and A, two groups of compositions of B are according to the 1:1 mixed.
The A component is by the polyether glycol of 60-70% among the present invention, the diphenylmethanediisocyanate of 30-35%, and the tolylene diisocyanate of 8-10% is formed.
The B component is 3 by the MOCA of 15-19% among the present invention; 3'-two chloro-4; 4'-diaminodiphenyl-methane or two adjacent chlorodiphenyl amine methane; Be commonly called as not card, chemical structural formula is
, the high resilience polyethers of 55-60%; The polyether glycol of 8-10%; Chemical structural formula is
, the slow resilience polyether glycol of 8-10%, and the tin catalyst of 0.1-0.3% is formed; B component viscosity is lower, and normal temperature is 180mPa.s down.
The said high resilience polyethers of B component is meant the high resilience polyethers 330N of 3000 molecular weight among the present invention, and said polyether glycol is meant the polyether glycol of molecular weight 2000, and the polyether glycol in the A component is meant that molecular weight is 3000 polyether glycol.
The invention allows for the making method of a kind of mould, it is characterized in that process step is following with polyurethane elastomer:
The first step: the preparation of A component, the polyether glycol and the MDI that in reaction vessel, add 3000 molecular weight by proportioning are diphenylmethanediisocyanate, reaction generates semi-prepolymer; Measure NCO% with the Di-n-Butyl Amine method; Make NCO% reach set(ting)value 6%, in reaction vessel, add tolylene diisocyanate again, make NCO% reach 9.5%; Promptly obtain the A component
The preparation of step 2:B component; In reaction vessel, add high resilience polyethers, polyether glycol, slow resilience polyether glycol by proportioning, under 60 ℃ condition, in mixture, add MOCA then, stirred 2.5 hours; It is dissolved fully; Add 0.3 part of organotin catalysts, fully the reaction back obtains the B component
Step 3: A, two groups of compositions of B according to the 1:1 mixed, are poured into and carried out ambient cure in the mould, got final product the demoulding in 30 minutes, be placed on the dry place of 25 degree to the mould of making 24 hours then, can obtain finished product.
The chemical equation of reaction is following described in the above-mentioned steps 1 of the present invention:
Wherein on behalf of polyethers R', R represent TDI R
1-Represent MOI.
The present invention compared with prior art has the following advantages: normal pressure and temperature is cast in the die cavity, and ambient cure provides cost savings input, and is highly polished, and dimensional stabilizing is easy to the demoulding, ambient cure, and casting has improved production efficiency etc.
Embodiment:
Below in conjunction with embodiment the present invention is further described.
Embodiment 1:
The present invention proposes a kind of mould with polyurethane elastomer and method for making thereof, it is processed by A, B component proportional mixing, and wherein the A component is the performed polymer part, and the B component is polyvalent alcohol and chain extension-crosslinking agent part.
In the preparation process of A component; Select the polyether glycol of 3000 molecular weight for use, add 60 parts, add 30 parts of diphenylmethanediisocyanates of 40 ℃ then; Measure NCO% with the Di-n-Butyl Amine method; Reach set(ting)value 6%, and then add 10 parts of 25 ℃ of tolylene diisocyanates, the reactant in the container fully reacts the back and obtains the A component;
In the preparation process of B component, at first with 50 parts high resilience 3000 molecular weight polyisoprene ethoxylated polyhydric alcohols, 10 part of 2000 molecular weight polyisoprene ethoxylated polyhydric alcohol, three functionality of 10 part of 3000 molecular weight, 3050 type polyether glycols; Mix, to mixture heat temperature raising to 60 ℃ gradually, add 15 parts of solidifying agent MOCA then; Stirred 2.5 hours, and be incubated 60 ℃, it is fully dissolved; Add 0.3 part of organotin catalysts then, treat that reactant in the container fully reflects after, obtain the B component;
Above-mentioned gained A group is mixed with B group 1:1 when 30 spend, and ambient cure got final product the demoulding in 30 minutes, was placed on the dry place of 25 degree to the mould of making 24 hours then, can use.
Embodiment 2:
To make in the ratio of 1:1 ﹑ 1:2 ﹑ 1:3 respectively in A, B component that above-mentioned method for making among the present invention makes, the result shows 1; 1 ratio mechanical performance of products is the most stable, the technological operation most convenient, and cost is minimum.
The invention has the beneficial effects as follows: normal pressure and temperature is cast in the die cavity, and ambient cure provides cost savings input, and is highly polished, and dimensional stabilizing is easy to the demoulding, ambient cure, and casting has improved production efficiency etc.
Claims (8)
1. a mould is used polyurethane elastomer, is mixed and made into by A, the two components of B, it is characterized in that the A component is the semi-prepolymer composition, by polyether glycol, and diphenylmethanediisocyanate, tolylene diisocyanate is formed; The B component is made up of MOCA, high resilience polyethers, polyether glycol, slow resilience polyether glycol and tin catalyst, and A, two groups of compositions of B are according to the 1:1 mixed.
2. a kind of mould according to claim 1 is used polyurethane elastomer, it is characterized in that the polyether glycol of A component by 60-70%, the diphenylmethanediisocyanate of 30-35%, and the tolylene diisocyanate of 8-10% is formed; The B component is 3 by the MOCA of 15-19%, 3'-two chloro-4, and 4'-diaminodiphenyl-methane or two adjacent chlorodiphenyl amine methane, the high resilience polyethers of 55-60%, the polyether glycol of 8-10%, the slow resilience polyether glycol of 8-10%, the tin catalyst of 0.1-0.3% is formed.
3. a kind of mould according to claim 2 is used polyurethane elastomer; It is characterized in that the said high resilience polyethers of B component is meant the high resilience polyethers 330N of 3000 molecular weight; Said polyether glycol is meant the polyether glycol of molecular weight 2000, and the polyether glycol in the A component is meant that molecular weight is 3000 polyether glycol.
4. a kind of mould according to claim 3 is used polyurethane elastomer; It is characterized in that the A component is the polyether glycol of 60 parts 3000 molecular weight by weight part; 30 parts diphenylmethanediisocyanate; 10 parts tolylene diisocyanate is formed; The B component is 50 parts high resilience 3000 molecular weight polyisoprene ethoxylated polyhydric alcohols by weight part, and 10 part of 2000 molecular weight polyisoprene ethoxylated polyhydric alcohol, three functionality of 10 part of 3000 molecular weight, 3050 type polyether glycols, 15 parts of solidifying agent MOCA, 0.3 part of organotin catalysts are formed.
5. one kind is characterized in that with the method for making of polyurethane elastomer process step is following like any described mould among the claim 1-4:
The first step: the preparation of A component, the polyether glycol and the MDI that in reaction vessel, add 3000 molecular weight by proportioning are diphenylmethanediisocyanate, reaction generates semi-prepolymer; Measure NCO% with the Di-n-Butyl Amine method; Make NCO% reach set(ting)value 6%, in reaction vessel, add tolylene diisocyanate again, make NCO% reach 9.5%; Promptly obtain the A component
The preparation of step 2:B component; In reaction vessel, add high resilience polyethers, polyether glycol, slow resilience polyether glycol by proportioning, under 60 ℃ condition, in mixture, add MOCA then, stirred 2.5 hours; It is dissolved fully; Add 0.3 part of organotin catalysts, fully the reaction back obtains the B component
Step 3: A, two groups of compositions of B according to the 1:1 mixed, are poured into and carried out ambient cure in the mould, got final product the demoulding in 30 minutes, be placed on the dry place of 25 degree to the mould of making 24 hours then, can obtain finished product.
6. mould according to claim 5 is characterized in that in step 1 with the method for making of polyurethane elastomer, under 40 ℃ temperature condition, adds diphenylmethanediisocyanate, under 25 ℃ condition, adds tolylene diisocyanate.
7. mould according to claim 6 is characterized in that in step 2 with the method for making of polyurethane elastomer, with high resilience polyether glycol; Polyether glycol; After slow resilience polyether glycol mixes,, add solidifying agent MOCA again to mixture heat temperature raising to 60 ℃ gradually.
8. mould according to claim 7 is with the method for making of polyurethane elastomer, and peculiar increasing is in the step 3 gained A group to be mixed under 30 ℃ condition with the B group, and reactant is fully reacted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210217908.9A CN102719084B (en) | 2012-06-28 | 2012-06-28 | Mould polyurethane elastomer and its preparation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210217908.9A CN102719084B (en) | 2012-06-28 | 2012-06-28 | Mould polyurethane elastomer and its preparation method |
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| CN102719084A true CN102719084A (en) | 2012-10-10 |
| CN102719084B CN102719084B (en) | 2017-08-15 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990327A (en) * | 2012-11-30 | 2013-03-27 | 苏州光麒科技有限公司 | Pressurizing jig and manufacturing method thereof |
| CN104231222A (en) * | 2014-09-19 | 2014-12-24 | 黎明化工研究设计院有限责任公司 | High-wear-resistance polyurethane elastomer and preparation method thereof |
| CN107118319A (en) * | 2017-05-15 | 2017-09-01 | 福建奥翔体育塑胶科技股份有限公司 | A kind of casting type mold materials and preparation method thereof |
| CN107236112A (en) * | 2017-07-14 | 2017-10-10 | 宿州典跃新型建筑材料有限公司 | A kind of manufacture craft of concrete moulding resin template |
| CN108164981A (en) * | 2017-12-29 | 2018-06-15 | 四川国鑫机械制造有限公司 | Polyurethane sieve plate and preparation method thereof |
| CN109438665A (en) * | 2018-10-29 | 2019-03-08 | 甘肃银光聚银化工有限公司 | With the method for toluene di-isocyanate(TDI) room temperature curing synthesis of polyurethane elastomer |
| CN109824854A (en) * | 2018-12-27 | 2019-05-31 | 湖北鼎汇微电子材料有限公司 | A kind of polishing pad |
| CN111925502A (en) * | 2020-08-13 | 2020-11-13 | 荆晓东 | Novel mute mahjong material and preparation method thereof |
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Cited By (9)
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| CN102990327A (en) * | 2012-11-30 | 2013-03-27 | 苏州光麒科技有限公司 | Pressurizing jig and manufacturing method thereof |
| CN104231222A (en) * | 2014-09-19 | 2014-12-24 | 黎明化工研究设计院有限责任公司 | High-wear-resistance polyurethane elastomer and preparation method thereof |
| CN104231222B (en) * | 2014-09-19 | 2017-07-07 | 黎明化工研究设计院有限责任公司 | A kind of High-abrasion-resistpolyurethane polyurethane elastomer and preparation method thereof |
| CN107118319A (en) * | 2017-05-15 | 2017-09-01 | 福建奥翔体育塑胶科技股份有限公司 | A kind of casting type mold materials and preparation method thereof |
| CN107236112A (en) * | 2017-07-14 | 2017-10-10 | 宿州典跃新型建筑材料有限公司 | A kind of manufacture craft of concrete moulding resin template |
| CN108164981A (en) * | 2017-12-29 | 2018-06-15 | 四川国鑫机械制造有限公司 | Polyurethane sieve plate and preparation method thereof |
| CN109438665A (en) * | 2018-10-29 | 2019-03-08 | 甘肃银光聚银化工有限公司 | With the method for toluene di-isocyanate(TDI) room temperature curing synthesis of polyurethane elastomer |
| CN109824854A (en) * | 2018-12-27 | 2019-05-31 | 湖北鼎汇微电子材料有限公司 | A kind of polishing pad |
| CN111925502A (en) * | 2020-08-13 | 2020-11-13 | 荆晓东 | Novel mute mahjong material and preparation method thereof |
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| Publication number | Publication date |
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| CN102719084B (en) | 2017-08-15 |
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Denomination of invention: Polyurethane elastomers for molds and their production methods Granted publication date: 20170815 Pledgee: Industrial and Commercial Bank of China Limited Weihai Branch Pledgor: WEIHAI HAIWANG HYDROCYCLONE Co.,Ltd. Registration number: Y2024980014736 |
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