CN102977323A - Preparation method for polycarbonate waterborne polyurethane - Google Patents
Preparation method for polycarbonate waterborne polyurethane Download PDFInfo
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- CN102977323A CN102977323A CN2012104375568A CN201210437556A CN102977323A CN 102977323 A CN102977323 A CN 102977323A CN 2012104375568 A CN2012104375568 A CN 2012104375568A CN 201210437556 A CN201210437556 A CN 201210437556A CN 102977323 A CN102977323 A CN 102977323A
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Abstract
A preparation method for polycarbonate waterborne polyurethane takes IPDI, PCDL, BDO, and DMPA as raw materials to prepare a prepolymer. Triethylamine is added to generate a salt by a neutralization reaction. An aqueous solution of ethylenediamine is added for emulsification chain extension to prepare the polycarbonate waterborne polyurethane emulsion. The aqueous polyurethane obtained by the present invention after film formation has good tensile properties, water resistance and thermal stability.
Description
Technical field
The present invention relates to a kind of preparation method of polycarbonate type aqueous polyurethane, belong to chemical field.
Technical background
Employed raw polyol mostly is greatly polyethers or polyester polyol in the urethane building-up process, and photostabilization and the physical and mechanical properties of PAUR are better, but the water tolerance of polyether(poly)urethane is better than PAUR.Because contain aliphatics alkylidene group and carbonate group repeating unit in the polycarbonate polyol molecular chain, the carbonic acid ester bond intermolecular cohesion is stronger, therefore have higher fusing point and second-order transition temperature by its synthetic urethane.In addition, compare with most of PAUR, polycarbonate polyurethane has excellent anti-hydrolytic performance, and has good wear resistance and biocompatibility, and therefore, the exploitation of polycarbonate polyurethane receives much concern.
It is main raw material that this patent adopts PCDL and isophorone diisocyanate, adopts the pre-polymerization method to synthesize the polycarbonate type aqueous polyurethane.The final aqueous polyurethane that adopts PCDL to prepare is filmed and is had better tensile property, water tolerance and thermostability.
Summary of the invention
The preparation method who the purpose of this invention is to provide a kind of polycarbonate type aqueous polyurethane, the aqueous polyurethane that obtains is filmed and is had preferably tensile property, water tolerance and thermostability.
For realizing above purpose, the preparation method of polycarbonate type aqueous polyurethane of the present invention, its step is specially:
(1) take isophorone diisocyanate (IPDI), PCDL (PCDL), BDO (BDO), dimethylolpropionic acid (DMBA) as raw material prepares performed polymer, reacts 2h.
(2) be cooled to 40 ℃, add triethylamine and carry out neutralization reaction generation salt, reaction 3-5min.
(3) aqueous solution that adds quadrol (EA) carries out emulsification chain extension 1h, obtains the polycarbonate type aqueous polyurethane emulsion.
The proportioning of performed polymer raw material is in the step (1): the mol ratio of IPDI and PCDL, BDO, DMBA is 1.3:1-1.4:1, and BDO accounts for the 2%-3% of performed polymer quality, and DMBA accounts for the 6%-7% of performed polymer quality.
The amount of substance of triethylamine is identical with the amount of substance of DMBA in the step (2).
The consumption of quadrol (EA) is 0.1% of performed polymer quality in the step (3), and the consumption of water is 2 times of performed polymer total mass.
The beneficial effect that the present invention produces is that this patent prepares aqueous polyurethane with PCDL, can overcome the shortcoming of polyethers or polyester polyol.Polycarbonate polyol contains aliphatics alkylidene group and carbonate group repeating unit, intermolecular cohesion is strong, therefore have higher fusing point and second-order transition temperature by its synthetic urethane, compare with most of conventional polyester type polyurethanes, polycarbonate polyurethane has excellent anti-hydrolytic performance, and have good wear resistance and biocompatibility, improved the over-all properties of aqueous polyurethane.The polycarbonate type aqueous polyurethane that finally makes has good tensile property, water tolerance and thermostability.
Embodiment
Embodiment 1:
Take isophorone diisocyanate (IPDI), PCDL (PCDL), BDO (BDO), dimethylolpropionic acid (DMBA) as raw material prepares performed polymer, react 2h.The mol ratio of IPDI and PCDL, BDO, DMBA is 1.3:1, and BDO accounts for 2% of performed polymer quality, and DMBA accounts for 6% of performed polymer quality.Be cooled to 40 ℃, add triethylamine and carry out neutralization reaction generation salt, reaction 3min.The amount of substance of triethylamine is identical with the amount of substance of DMBA.The aqueous solution that adds quadrol (EA) carries out emulsification chain extension 1h, obtains the polycarbonate type aqueous polyurethane emulsion.The consumption of quadrol (EA) is 0.1% of performed polymer quality, and the consumption of water is 2 times of performed polymer total mass.
Embodiment 2:
Take isophorone diisocyanate (IPDI), PCDL (PCDL), BDO (BDO), dimethylolpropionic acid (DMBA) as raw material prepares performed polymer, react 2h.The mol ratio of IPDI and PCDL, BDO, DMBA is 1.4:1, and BDO accounts for 2% of performed polymer quality, and DMBA accounts for 7% of performed polymer quality.Be cooled to 40 ℃, add triethylamine and carry out neutralization reaction generation salt, reaction 3min.The amount of substance of triethylamine is identical with the amount of substance of DMBA.The aqueous solution that adds quadrol (EA) carries out emulsification chain extension 1h, obtains the polycarbonate type aqueous polyurethane emulsion.The consumption of quadrol (EA) is 0.1% of performed polymer quality, and the consumption of water is 2 times of performed polymer total mass.
Claims (5)
1. the preparation method of a polycarbonate type aqueous polyurethane, it is characterized in that: step is as follows:
(1) take isophorone diisocyanate (IPDI), PCDL (PCDL), BDO (BDO), dimethylolpropionic acid (DMBA) as raw material prepares performed polymer, reacts 2h;
(2) be cooled to 40 ℃, add triethylamine and carry out neutralization reaction generation salt, reaction 3-5min;
(3) aqueous solution that adds quadrol (EA) carries out emulsification chain extension 1h, obtains the polycarbonate type aqueous polyurethane emulsion.
2. the preparation method of a kind of polycarbonate type aqueous polyurethane as claimed in claim 1, it is characterized in that: the proportioning of performed polymer raw material is in the described step (1): the mol ratio of IPDI and PCDL, BDO, DMBA is 1.3:1-1.4:1, BDO accounts for the 2%-3% of performed polymer quality, and DMBA accounts for the 6%-7% of performed polymer quality.
3. the preparation method of a kind of polycarbonate type aqueous polyurethane as claimed in claim 1 is characterized in that: the amount of substance of triethylamine is identical with the amount of substance of DMBA in the described step (2).
4. the preparation method of a kind of polycarbonate type aqueous polyurethane as claimed in claim 1 is characterized in that: the consumption of quadrol (EA) is 0.1% of performed polymer quality in the described step (3).
5. the preparation method of a kind of polycarbonate type aqueous polyurethane as claimed in claim 1 is characterized in that: the consumption of water is 2 times of performed polymer total mass in the described step (3).
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| CN2012104375568A CN102977323A (en) | 2012-11-06 | 2012-11-06 | Preparation method for polycarbonate waterborne polyurethane |
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| CN2012104375568A CN102977323A (en) | 2012-11-06 | 2012-11-06 | Preparation method for polycarbonate waterborne polyurethane |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104530372A (en) * | 2014-12-25 | 2015-04-22 | 张家港康得新光电材料有限公司 | Water-based polyurethane and preparation method thereof, and composite film with water-based polyurethane |
| CN104910348A (en) * | 2015-06-16 | 2015-09-16 | 中国科学院化学研究所 | Polycarbonate polyurethane and green preparation method thereof |
| CN105623419A (en) * | 2016-03-21 | 2016-06-01 | 安徽安大中鼎橡胶技术开发有限公司 | Aqueous low-friction logo coating for coating rubber O-shaped ring surface and preparation method of low-friction logo coating |
| CN105801798A (en) * | 2014-12-31 | 2016-07-27 | 财团法人纺织产业综合研究所 | High-chroma waterborne polyurethane resin and manufacturing method thereof and application thereof in suedette composite material |
| CN106866911A (en) * | 2017-03-31 | 2017-06-20 | 珠海华大浩宏化工有限公司 | A kind of footwear material finishing agent and preparation method thereof |
| CN109071761A (en) * | 2016-04-20 | 2018-12-21 | 湛新奥地利有限公司 | Aqueous polyurethane dispersion |
| CN109207047A (en) * | 2018-11-15 | 2019-01-15 | 福建格林春天新材料股份有限公司 | Dedicated super sub- skin sense abrasion-resistance water coating of a kind of PVC surface decoration and preparation method thereof |
| CN109486393A (en) * | 2018-11-15 | 2019-03-19 | 福建格林春天新材料股份有限公司 | Dedicated bloom anti-pollution abrasion-resistance water coating of a kind of PVC surface decoration and preparation method thereof |
| CN115109220A (en) * | 2022-06-08 | 2022-09-27 | 中国船舶集团有限公司系统工程研究院 | Preparation method of hydrolysis-resistant thermoplastic polyurethane elastomer material |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104530372A (en) * | 2014-12-25 | 2015-04-22 | 张家港康得新光电材料有限公司 | Water-based polyurethane and preparation method thereof, and composite film with water-based polyurethane |
| CN105801798A (en) * | 2014-12-31 | 2016-07-27 | 财团法人纺织产业综合研究所 | High-chroma waterborne polyurethane resin and manufacturing method thereof and application thereof in suedette composite material |
| CN105801798B (en) * | 2014-12-31 | 2018-08-14 | 财团法人纺织产业综合研究所 | High chroma aqueous polyurethane resin and its manufacturing method and its in the application of Glove suede composite material |
| CN104910348A (en) * | 2015-06-16 | 2015-09-16 | 中国科学院化学研究所 | Polycarbonate polyurethane and green preparation method thereof |
| CN105623419A (en) * | 2016-03-21 | 2016-06-01 | 安徽安大中鼎橡胶技术开发有限公司 | Aqueous low-friction logo coating for coating rubber O-shaped ring surface and preparation method of low-friction logo coating |
| CN105623419B (en) * | 2016-03-21 | 2018-03-20 | 安徽安大中鼎橡胶技术开发有限公司 | A kind of rubber o-ring surface coating water-based low friction, mark coating and preparation method thereof |
| CN109071761A (en) * | 2016-04-20 | 2018-12-21 | 湛新奥地利有限公司 | Aqueous polyurethane dispersion |
| CN106866911A (en) * | 2017-03-31 | 2017-06-20 | 珠海华大浩宏化工有限公司 | A kind of footwear material finishing agent and preparation method thereof |
| CN106866911B (en) * | 2017-03-31 | 2018-03-13 | 珠海华大浩宏化工有限公司 | A kind of footwear material finishing agent and preparation method thereof |
| CN109207047A (en) * | 2018-11-15 | 2019-01-15 | 福建格林春天新材料股份有限公司 | Dedicated super sub- skin sense abrasion-resistance water coating of a kind of PVC surface decoration and preparation method thereof |
| CN109486393A (en) * | 2018-11-15 | 2019-03-19 | 福建格林春天新材料股份有限公司 | Dedicated bloom anti-pollution abrasion-resistance water coating of a kind of PVC surface decoration and preparation method thereof |
| CN115109220A (en) * | 2022-06-08 | 2022-09-27 | 中国船舶集团有限公司系统工程研究院 | Preparation method of hydrolysis-resistant thermoplastic polyurethane elastomer material |
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Application publication date: 20130320 |