CN103012721A - Amino silane modified waterborne polyurethane emulsion - Google Patents
Amino silane modified waterborne polyurethane emulsion Download PDFInfo
- Publication number
- CN103012721A CN103012721A CN201210558602XA CN201210558602A CN103012721A CN 103012721 A CN103012721 A CN 103012721A CN 201210558602X A CN201210558602X A CN 201210558602XA CN 201210558602 A CN201210558602 A CN 201210558602A CN 103012721 A CN103012721 A CN 103012721A
- Authority
- CN
- China
- Prior art keywords
- amino silane
- aqueous polyurethane
- silane modified
- polyurethane emulsion
- performed polymer
- 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.)
- Pending
Links
Landscapes
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses an amino silane modified waterborne polyurethane emulsion which is prepared by the following steps: preparing a prepolymer by using TD1, N-220, DEG (Diethylene Glycol) and DMBA (Dimethyl Benzanthr Acene) as the raw materials; adopting an amino silane (HG550) modified polyurethane prepolymer; adding triethylamine to neutralize the amino silane (HG550) modified polyurethane prepolymer; and adding an appropriate amount of deionized water so as to prepare the amino silane modified waterborne polyurethane emulsion. The waterborne polyurethane provided by the invention has better water resistance and adhesion after being made into films.
Description
Technical field
The present invention relates to a kind of amino silane modified aqueous polyurethane emulsion, belong to chemical field.
Technical background
Aqueous polyurethane is top grade, the high added value coating that integrates high-performance and environmental protection, become one of standard coating of advanced country in the world, also be the coating variety that international emphasis is promoted research, the aqueous polyurethane coating of China also is in the research and development stage at present, general dependence on import.Although the exploitation of external aqueous polyurethane coating than China early, aqueous polyurethane still need improve aspect water tolerance and the sticking power.Thereby, the research tool of the modification of aqueous polyurethane is of great significance.
Summary of the invention
The purpose of this invention is to provide a kind of amino silane modified aqueous polyurethane emulsion, this aqueous polyurethane has good winter hardiness, water tolerance and cohesiveness.
For realizing above purpose, a kind of amino silane modified aqueous polyurethane emulsion of the present invention, its preparation method is specially:
(1) prepares performed polymer take tolylene diisocyanate (TDI), polyether glycol (N-220), glycol ether (DEG), dimethylolpropionic acid (DMBA) as raw material, 85 ℃ of stirring reaction 2h, rotating speed is 850r/min, looks the system viscosity in the process and adds N-first class pyrrolidone (NMP).
(2) add aminosilane (HG550) modified polyurethane prepolymer, reaction 1h.
(3) be cooled to 40 ℃, add the triethylamine neutralization, reaction 3min.
(4) add entry strong stirring emulsification 1h, rotating speed is 1500r/min, obtains amino silane modified aqueous polyurethane emulsion.
The proportioning of performed polymer raw material is in the step (1): the mol ratio of TDI and N-220 is 1.2:1, and the consumption of DEG accounts for 3% of performed polymer quality, and the consumption of DMBA is 7% of performed polymer quality, and the consumption of NMP is so that stir smooth being as the criterion.
Aminosilane (HG550) consumption is the 0.5%-3% of performed polymer quality in the step (2).
The amount of substance of triethylamine is identical with the amount of substance of DMBA in the step (3).
The consumption of the middle water of step (4) is 2 times of performed polymer total mass.
The beneficial effect that the present invention produces is, this patent adopts amino silane modified aqueous polyurethane, at first effectively improved the water tolerance of polyurethane laminate, after the modification, siloxanes segment in the silane is incorporated in the aqueous polyurethane molecule, alkoxyl group forms the silicon hydroxyl when the urethane water-dispersion, when the aqueous polyurethane film forming, because the surface energy of siloxanes is low, tend to surface enrichment, and the silicon hydroxyl that is enriched in the surface is easy to dewater in film process and forms fine and close Si-O-Si three-dimensional crosslinked network, this is not used in urethane formed little cross-linked network when water-dispersion, so the water-intake rate of amino amino silane modified aqueous polyurethane obviously reduces, water tolerance improves.In addition, the existence of crosslinking structure is so that the adhesion property of urethane is good.
Embodiment
Embodiment 1:
Prepare performed polymer take tolylene diisocyanate (TDI), polyether glycol (N-220), glycol ether (DEG), dimethylolpropionic acid (DMBA) as raw material, under 85 ℃, the condition of rotating speed 850r/min, stirring reaction 2h looks the system viscosity and adds N-first class pyrrolidone (NMP) in the process.The mol ratio of TDI and N-220 is 1.2:1, and the consumption of DEG accounts for 3% of performed polymer quality, and the consumption of DMBA is 7% of performed polymer quality.Add aminosilane (HG550) modified polyurethane prepolymer, reaction 1h, the consumption of HG550 accounts for 0.5% of performed polymer quality.Be cooled to 40 ℃, add the triethylamine neutralization, reaction 3min, the amount of substance of triethylamine is identical with the amount of substance of DMBA.Rotating speed is increased to 1500r/min, add emulsifying water 1h, the consumption of water is 2 times of performed polymer total mass, obtains amino silane modified aqueous polyurethane.
The water-intake rate 12.2% of polyurethane laminate, sticking power are 3 grades.
Embodiment 2:
Prepare performed polymer take tolylene diisocyanate (TDI), polyether glycol (N-220), glycol ether (DEG), dimethylolpropionic acid (DMBA) as raw material, under 85 ℃, the condition of rotating speed 850r/min, stirring reaction 2h looks the system viscosity and adds N-first class pyrrolidone (NMP) in the process.The mol ratio of TDI and N-220 is 1.2:1, and the consumption of DEG accounts for 3% of performed polymer quality, and the consumption of DMBA is 7% of performed polymer quality.Add aminosilane (HG550) modified polyurethane prepolymer, reaction 1h, the consumption of HG550 accounts for 1.5% of performed polymer quality.Be cooled to 40 ℃, add the triethylamine neutralization, reaction 3min, the amount of substance of triethylamine is identical with the amount of substance of DMBA.Rotating speed is increased to 1500r/min, add emulsifying water 1h, the consumption of water is 2 times of performed polymer total mass, obtains amino silane modified aqueous polyurethane.
The water-intake rate 10.5% of polyurethane laminate, sticking power are 2 grades.
Embodiment 3:
Prepare performed polymer take tolylene diisocyanate (TDI), polyether glycol (N-220), glycol ether (DEG), dimethylolpropionic acid (DMBA) as raw material, under 85 ℃, the condition of rotating speed 850r/min, stirring reaction 2h looks the system viscosity and adds N-first class pyrrolidone (NMP) in the process.The mol ratio of TDI and N-220 is 1.2:1, and the consumption of DEG accounts for 3% of performed polymer quality, and the consumption of DMBA is 7% of performed polymer quality.Add aminosilane (HG550) modified polyurethane prepolymer, reaction 1h, the consumption of HG550 accounts for 2% of performed polymer quality.Be cooled to 40 ℃, add the triethylamine neutralization, reaction 3min, the amount of substance of triethylamine is identical with the amount of substance of DMBA.Rotating speed is increased to 1500r/min, add emulsifying water 1h, the consumption of water is 2 times of performed polymer total mass, obtains amino silane modified aqueous polyurethane.
The water-intake rate 8.3% of polyurethane laminate, sticking power are 1 grade.
Embodiment 4:
Prepare performed polymer take tolylene diisocyanate (TDI), polyether glycol (N-220), glycol ether (DEG), dimethylolpropionic acid (DMBA) as raw material, under 85 ℃, the condition of rotating speed 850r/min, stirring reaction 2h looks the system viscosity and adds N-first class pyrrolidone (NMP) in the process.The mol ratio of TDI and N-220 is 1.2:1, and the consumption of DEG accounts for 3% of performed polymer quality, and the consumption of DMBA is 7% of performed polymer quality.Add aminosilane (HG550) modified polyurethane prepolymer, reaction 1h, the consumption of HG550 accounts for 3% of performed polymer quality.Be cooled to 40 ℃, add the triethylamine neutralization, reaction 3min, the amount of substance of triethylamine is identical with the amount of substance of DMBA.Rotating speed is increased to 1500r/min, add emulsifying water 1h, the consumption of water is 2 times of performed polymer total mass, obtains amino silane modified aqueous polyurethane.
The water-intake rate 5.6% of polyurethane laminate, sticking power are 1 grade.
Claims (8)
1. amino silane modified aqueous polyurethane emulsion, it is characterized in that: the preparation method is as follows:
(1) prepares performed polymer take tolylene diisocyanate (TDI), polyether glycol (N-220), glycol ether (DEG), dimethylolpropionic acid (DMBA) as raw material, 85 ℃ of stirring reaction 2h look the system viscosity and add N-first class pyrrolidone (NMP) in the process;
(2) add aminosilane (HG550) modified polyurethane prepolymer, reaction 1h;
(3) be cooled to 40 ℃, add the triethylamine neutralization, reaction 3min;
(4) add entry strong stirring emulsification 1h, obtain amino silane modified aqueous polyurethane.
2. a kind of amino silane modified aqueous polyurethane emulsion 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 TDI and N-220 is 1.2:1, the consumption of DEG accounts for 3% of performed polymer quality, and the consumption of DMBA is 7% of performed polymer quality.
3. a kind of amino silane modified aqueous polyurethane emulsion as claimed in claim 1 is characterized in that: the consumption of NMP is so that stir smooth being as the criterion in the described step (1).
4. a kind of amino silane modified aqueous polyurethane emulsion as claimed in claim 1 is characterized in that: mixing speed is 850r/min in the described step (1).
5. a kind of amino silane modified aqueous polyurethane emulsion as claimed in claim 1 is characterized in that: aminosilane (HG550) consumption is the 0.5%-3% of performed polymer quality in the described step (2).
6. a kind of amino silane modified aqueous polyurethane emulsion 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 (3).
7. a kind of amino silane modified aqueous polyurethane emulsion 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 (4).
8. a kind of amino silane modified aqueous polyurethane emulsion as claimed in claim 1 is characterized in that: mixing speed is 1500r/min in the described step (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210558602XA CN103012721A (en) | 2012-12-21 | 2012-12-21 | Amino silane modified waterborne polyurethane emulsion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210558602XA CN103012721A (en) | 2012-12-21 | 2012-12-21 | Amino silane modified waterborne polyurethane emulsion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103012721A true CN103012721A (en) | 2013-04-03 |
Family
ID=47961863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210558602XA Pending CN103012721A (en) | 2012-12-21 | 2012-12-21 | Amino silane modified waterborne polyurethane emulsion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103012721A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106008895A (en) * | 2016-06-22 | 2016-10-12 | 合肥科天水性科技有限责任公司 | Anionic waterborne polyurethane resin for wood lacquer and preparation method of anionic waterborne polyurethane resin |
| CN111995730A (en) * | 2020-09-03 | 2020-11-27 | 东来涂料技术（上海）股份有限公司 | Waterborne polyurethane, waterborne polyurethane coating and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101440154A (en) * | 2008-12-31 | 2009-05-27 | 陕西科技大学 | Aqueous polyurethane and preparation thereof |
| CN101469055A (en) * | 2007-12-26 | 2009-07-01 | 汉高股份两合公司 | Active organosilicon-polyurethane performed polymer and solvent-free active organosilicon-polyurethane emulsion prepared thereby |
| CN101481876A (en) * | 2008-01-31 | 2009-07-15 | 东莞市恩典皮具制品有限公司 | Aqueous polyurethane emulsion for synthetic leather and preparation thereof |
| KR20100107328A (en) * | 2009-03-25 | 2010-10-05 | (주)다락 | Microsphere dispersed waterborne polyurethane and process for preparing the same |
-
2012
- 2012-12-21 CN CN201210558602XA patent/CN103012721A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469055A (en) * | 2007-12-26 | 2009-07-01 | 汉高股份两合公司 | Active organosilicon-polyurethane performed polymer and solvent-free active organosilicon-polyurethane emulsion prepared thereby |
| CN101481876A (en) * | 2008-01-31 | 2009-07-15 | 东莞市恩典皮具制品有限公司 | Aqueous polyurethane emulsion for synthetic leather and preparation thereof |
| CN101440154A (en) * | 2008-12-31 | 2009-05-27 | 陕西科技大学 | Aqueous polyurethane and preparation thereof |
| KR20100107328A (en) * | 2009-03-25 | 2010-10-05 | (주)다락 | Microsphere dispersed waterborne polyurethane and process for preparing the same |
Non-Patent Citations (1)
| Title |
|---|
| 吴宁晶: ""硅烷改性水性聚氨酯分散液的合成与性能研究"", 《涂料工业》, no. 5, 31 May 2009 (2009-05-31) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106008895A (en) * | 2016-06-22 | 2016-10-12 | 合肥科天水性科技有限责任公司 | Anionic waterborne polyurethane resin for wood lacquer and preparation method of anionic waterborne polyurethane resin |
| CN111995730A (en) * | 2020-09-03 | 2020-11-27 | 东来涂料技术（上海）股份有限公司 | Waterborne polyurethane, waterborne polyurethane coating and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102093517B (en) | Aqueous polyurethane-acrylate resin for synthetic leather fabrics and preparation method thereof | |
| CN107141434B (en) | Waterborne polyurethane resin for synthetic leather fabric and preparation method thereof | |
| CN106366274A (en) | Low-VOC polyurethane synthetic leather and production method thereof | |
| CN103613730B (en) | Method for preparing high-solid content waterborne polyurethane by using nano silicon dioxide polyether (ester) polyalcohol dispersion | |
| CN107383302B (en) | Preparation method of sulfonated modified graphene oxide/high-solid-content aqueous polyurethane | |
| CN102206410A (en) | Preparation method of high-solid-content aqueous polyurethane for leather | |
| CN104497926B (en) | A kind of water-proof environmental protection binding agent | |
| CN102977320A (en) | Method for modifying water-based polyurethane by using hydroxyl terminated polybutadiene | |
| CN102432887B (en) | Preparation method of polyester-modified silica gel | |
| CN103834038B (en) | A kind of preparation method of pectination organic silicon modified polyurethane grafting EVA water-based emulsion | |
| CN105131819A (en) | Water-based polyurethane track material and preparation method thereof | |
| CN103012732A (en) | Preparation method of amino silicone modified waterborne polyurethane | |
| CN105219125A (en) | A kind of preparation method of self-vulcanizing non-isocyanate water polyurethane base high molecular dye | |
| CN102464789A (en) | Waterproof material based on polyurea and preparation method thereof | |
| CN103012721A (en) | Amino silane modified waterborne polyurethane emulsion | |
| CN104341572A (en) | Preparation method of solvent-free water-based polyurethane resin | |
| CN101798453B (en) | Method for preparing water-borne functional polyurethane elastic emulsion | |
| CN103724985B (en) | A kind of hollow ceramic microspheres fills the preparation method of epoxy modified polyurethane | |
| CN103450435B (en) | A kind of epoxy resin modified aqueous polyurethane prepares the method for Wool Shrink-Resist Agent | |
| CN105622878A (en) | Preparation method of waterborne waterproof coating | |
| CN102977315A (en) | Preparation method of polyether polyorganosiloxanediatomic alcoholmodified watersoluble polyurethane | |
| CN104262657A (en) | Preparation method for dyeable polyurethane film | |
| CN104312520A (en) | Amphoteric waterborne polyurethane shoe adhesive with high solid content and preparation method thereof | |
| CN102068926B (en) | Functional composite membrane capable of recognizing alkali metal ions and preparation method thereof | |
| CN103012720B (en) | Polyurethane resin for tetramethylguanidine ionic liquid-modified waterborne synthetic leather and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130403 |