CN1282681C - Aquosity polyurethane elastic resin in use for water proofing paint of construction and synthetic method - Google Patents
Aquosity polyurethane elastic resin in use for water proofing paint of construction and synthetic method Download PDFInfo
- Publication number
- CN1282681C CN1282681C CN 200410052814 CN200410052814A CN1282681C CN 1282681 C CN1282681 C CN 1282681C CN 200410052814 CN200410052814 CN 200410052814 CN 200410052814 A CN200410052814 A CN 200410052814A CN 1282681 C CN1282681 C CN 1282681C
- Authority
- CN
- China
- Prior art keywords
- agent
- portions
- polyethers
- water
- minutes
- 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.)
- Expired - Fee Related
Links
Landscapes
- Polyurethanes Or Polyureas (AREA)
Abstract
The present invention discloses water-base polyurethane elastic resin used for water-proof paint of construction and a synthetic method thereof. The water-base polyurethane elastic resin comprises the components of the following compounding ratio: 40 to 60 portions of mixed polyether, 10 to 40 portions of toluene diisocyanate, 0.2 to 10 portions of active emulsifying agent, 0.2 to 5.0 portions of chain extending agent, 0.02 to 1.0 portion of catalyst, 0.2 to 10 portions of neutralizing agent, 5 to 50 portions of diluting agent, 150 to 300 portions of water and 0.2 to 8.0 portions of mixed crosslinking (chain extending) agent. The present invention comprises the following steps: stirring the mixed polyether for 1 hour at 130 DEG C and in the vacuum degree of 700 to 760 mmHg for dewatering; filling nitrogen gas and adding the active emulsifying agent into the mixed polyether and stirring mixtures for 30 minutes; adding the chain extending agent, the toluene diisocyanate and the catalyst at constant temperature of 80 DEG C for 3 hours after temperature is reduced to 40 DEG C; reducing temperature to 50DEGC and adding parts of the diluting agent and all the neutralizing agent at 50 to 60 DEG C for heat preservation for 40 minutes; adding the diluting agent and reducing temperature to less than 10 DEG C; pouring mixtures in the system into ice water for dispersion and emulsification at a medium/high speed for 30 minutes and adding the crosslinking (chain extending) agent at the same time; adopting a pressure reduced distillation method to remove the diluting agent. The tensile strength of the resin is as high as 13.3MPa, and the elongation rate of the resin is as high as 755%.
Description
Technical field
The present invention relates to a kind of coating resin, particularly relate to a kind of building water-proof paint use elastic polyurethane resin and synthetic method thereof.
Background technology
Up to now, the urethane resin of preparation building water-proof paint is a spirit thinned type, excellent performance, but its organic volatile content (VOC) all is higher than relevant standard with free isocyanate content, do not meet environmental requirement, and the synthetic and exploitation of existing waterborne polyurethane resin mainly is confined in wood lacquer resin aspect its hardness height, unit elongation is little, and elasticity can not reach the requirement of waterproof paint.
Summary of the invention
Technical scheme of the present invention is: a kind of building water-proof paint use elastic polyurethane resin, and its prescription is:
Constituent proportioning (weight part %)
Polyethers N210, polyethers N220
Mixture 40-60 with polyethers N3050
Tolylene diisocyanate 10-40
Active emulsifier 0.2-10
Chainextender 0.2-5.0
Catalyzer 0.02-1.0
Neutralizing agent 0.2-10
Thinner 5-40
Water 150-300
Mixed cross-linker 0.2-8.0.
A kind of synthetic method of building water-proof paint use elastic polyurethane resin, characteristics are the steps include:
1, with the mixture of polyethers N210, polyethers N220 and polyethers N3050 at 130 ℃, stir dehydration 1 hour under the 700-760mmHg vacuum tightness, logical then nitrogen adds active emulsifier down, stirred 30 minutes, be cooled to 40 ℃, add chainextender, tolylene diisocyanate and catalyzer, 80 ℃ of constant temperature 3 hours.
2, be cooled to 50 ℃ then and add a part of thinner and whole neutralizing agent, 50-60 ℃ is incubated 40 minutes down, adds thinner, is cooled to below 10 ℃, pours above system into frozen water high speed dispersion and emulsion 30 minutes, adds linking agent therebetween.
3, remove thinner with distillation under vacuum, the aqueous polyurethane elastic resin.
The invention has the beneficial effects as follows: it had both kept the excellent properties of Polyurethane, again the Polyurethane Water-borne modification was reached environmental requirement, and reached high performance requirements, and the tensile strength of this resin is up to 13.3Mpa after testing, and unit elongation is up to 755%.
The present invention is further elaborated by following examples, but does not limit the scope of the invention.
Embodiment
Embodiment 1:
With 48 parts of polyethers N210,2 parts of polyethers N220 and 2 parts of polyethers N3050 are at 130 ℃, mix dehydration 1 hour under the 740mmHg vacuum tightness, logical then nitrogen adds 8.1 parts of dimethylol propionic acids down, stirred 30 minutes, be cooled to 40 ℃, add 2.3 parts of butanediol solutions, 29.3 part tolylene diisocyanate and 0.05 part of organotin, 80 ℃ of reactions of constant temperature 3 hours. be cooled to 50 ℃ then and add 10 parts of butanone and 4.5 parts of triethylamines, 50-60 ℃ is incubated 40 minutes down, add 20 parts of butanone, be cooled to below 10 ℃, poured above system into 250 parts of frozen water high speed dispersion and emulsions 30 minutes, add 1.5 parts of ditan diamines and 0.5 part of quadrol therebetween.Butanone is removed in above emulsion underpressure distillation, the aqueous polyurethane elastic resin.
Embodiment 2:
With 46 parts of polyethers N210,6 parts of polyethers N220 and 2 parts of polyethers N3050 are at 130 ℃, stir dehydration 1 hour under the 750mmHg vacuum tightness, logical then nitrogen adds 9 parts of dimethylol propionic acids down, stirred 30 minutes, be cooled to 40 ℃, add 0.23 part of butanediol solution, 28.8 part tolylene diisocyanate and 0.07 part of catalyzer, 80 ℃ of reactions of constant temperature 3 hours. be cooled to 50 ℃ then and add 15 parts of butanone and 5 parts of triethylamines, 50-60 ℃ is incubated 40 minutes down, add 25 parts of butanone, be cooled to below 10 ℃, poured above system into 300 parts of frozen water high speed dispersion and emulsions 30 minutes, add therebetween 1 part of propylene glycol two-para amidocyanogen benzoic Acid ester and 1 part of quadrol.Butanone is removed in above emulsion underpressure distillation, the aqueous polyurethane elastic resin.
Claims (2)
1, a kind of building water-proof paint use elastic polyurethane resin is characterized in that its prescription is:
Constituent proportioning (weight part %)
Polyethers N210, polyethers N220
With polyethers N3050 40-60
Tolylene diisocyanate 10-40
Active emulsifier 0.2-10
Chainextender 0.2-5.0
Catalyzer 0.02-1.0
Neutralizing agent 0.2-10
Thinner 5-40
Water 150-300
Mixed cross-linker 0.2-8.0.
2, the preparation method of building water-proof paint use elastic polyurethane resin according to claim 1 is characterized in that, the steps include:
(1) mixture of polyethers N210, polyethers N220 and polyethers N3050 stirs dehydration 1 hour at 130 ℃ under the 700-760mmHg vacuum tightness, and logical then nitrogen adds active emulsifier down, stirred 30 minutes, and be cooled to 40 ℃, add chainextender, tolylene diisocyanate and catalyzer, 80 ℃ of constant temperature 3 hours.
(2) be cooled to 50 ℃ then and add a part of thinner and whole neutralizing agent, 50-60 ℃ is incubated 40 minutes down, adds thinner, is cooled to below 10 ℃, pours above system into frozen water high speed dispersion and emulsion 30 minutes, adds linking agent therebetween.
(3) remove thinner with distillation under vacuum, the aqueous polyurethane elastic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410052814 CN1282681C (en) | 2004-07-14 | 2004-07-14 | Aquosity polyurethane elastic resin in use for water proofing paint of construction and synthetic method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410052814 CN1282681C (en) | 2004-07-14 | 2004-07-14 | Aquosity polyurethane elastic resin in use for water proofing paint of construction and synthetic method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1600798A CN1600798A (en) | 2005-03-30 |
| CN1282681C true CN1282681C (en) | 2006-11-01 |
Family
ID=34666080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410052814 Expired - Fee Related CN1282681C (en) | 2004-07-14 | 2004-07-14 | Aquosity polyurethane elastic resin in use for water proofing paint of construction and synthetic method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1282681C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1952030B (en) * | 2005-10-19 | 2010-10-13 | 曾伟奎 | Polyurethane water-proof paint with high performance and its production process |
| CN102212286B (en) * | 2011-04-25 | 2013-06-19 | 上海应用技术学院 | Fastness reinforcing agent used for ceramic temperature-indicating coating and preparation method thereof |
| CN106752280B (en) * | 2017-01-25 | 2023-09-26 | 新疆科能新材料技术股份有限公司 | Reaction assembly and waterproof coating production equipment |
-
2004
- 2004-07-14 CN CN 200410052814 patent/CN1282681C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1600798A (en) | 2005-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101260179B (en) | Method for preparing fluorine modifying water-base polyurethane emulsion, products and application thereof as industrial paint | |
| CN101220241B (en) | Double-component high-strength polyurethane waterproof coating material | |
| CN101235130B (en) | Cation water polyurethane emulsion and preparation method thereof | |
| CN110042670A (en) | A kind of high-efficiency environment friendly rubber powder modified asphalt waterproof roll and preparation method | |
| CN102190895B (en) | Emulsified asphalt with strong compatibility and preparation method thereof | |
| CN110499094B (en) | Graphene-modified waterborne polyurethane anticorrosive paint and preparation method thereof | |
| CN1282681C (en) | Aquosity polyurethane elastic resin in use for water proofing paint of construction and synthetic method | |
| CN113683825B (en) | Butyronitrile gloves and forming process thereof | |
| CN1871272A (en) | Water-emulsifiable isocyanates having improved properties | |
| CN113831831A (en) | Waterborne polyurethane coating suitable for winter and preparation method thereof | |
| CN103980810A (en) | Waterproof solvent-free single-component polyurethane lacquer used on wet surface and preparation method thereof | |
| CN102070760A (en) | Method for preparing aqueous epoxy resin curing agents | |
| CN106380567A (en) | Polyurethane high resilience foam prepared from recovered recycled polyol as raw material | |
| CN100351297C (en) | Low free tolylene diisocynate polyurethane solidifying agent and its preparation method | |
| CN104877540A (en) | Impact-resistant and tear-resistant water-based paint | |
| CN101284900A (en) | Anionic waterborn polyurethane dispersion for wood lacquer and method for preparing same | |
| CN108822667A (en) | A kind of decorative engineering water-repellent paint and preparation method thereof | |
| CN114854355B (en) | Isocyanate-terminated bi-component polysulfide adhesive and preparation method thereof | |
| CN115873202A (en) | Preparation method of high-solid-content waterborne polyurethane | |
| CN109265648A (en) | A kind of Diamond Search aqueous polyurethane dispersion and preparation method | |
| CN109180901A (en) | From delustring aqueous polyurethane and preparation method thereof | |
| CN114410211A (en) | Novel environment-friendly moisture-curing single-component polyurethane waterproof coating and preparation method thereof | |
| CN109161213B (en) | Composition for cold regeneration of old asphalt and preparation method and application thereof | |
| CN108641058A (en) | The preparation method of aqueous polyurethane emulsion | |
| CN111944138B (en) | Sulfonated polycarbonate polyol containing amino ester bonds as well as preparation method and application 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 | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061101 |