CN1670052A - Water-base polyurethane / acrylate composite elastic resin and method for synthesizing same - Google Patents
Water-base polyurethane / acrylate composite elastic resin and method for synthesizing same Download PDFInfo
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- CN1670052A CN1670052A CN 200510024409 CN200510024409A CN1670052A CN 1670052 A CN1670052 A CN 1670052A CN 200510024409 CN200510024409 CN 200510024409 CN 200510024409 A CN200510024409 A CN 200510024409A CN 1670052 A CN1670052 A CN 1670052A
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- base polyurethane
- acrylate
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Abstract
The invention discloses a water-base polyurethane / acrylate composite elastic resin and method for synthesizing it, which comprises (by weight ratio) mixed ether 45-65, toluene diisocyanate 15-40, reactive emulsifying agent 1-10, hydroxy methyl acrylate 1-15, catalyst 0.05-1.0, neutralization agent 1-10, deflocculating agent 5-50, water 200-400, cross bonding (chain extending) agent 0.2-6.0, (methyl) acrylic ester 50-150, initiator 10-50.
Description
Technical field
The present invention relates to a kind of compound resin and synthetic method thereof, particularly relate to a kind of building water-proof paint use polyurethane/acrylate composite elastic resin and synthetic method thereof.
Background technology
The urethane resin of preparation building water-proof paint is a spirit thinned type at present, excellent performance, but its organic volatile content (VOC) all is higher than relevant standard with free isocyanate content, does not meet environmental requirement.Synthetic and the exploitation of existing water-base polyurethane/acrylate composite elastic resin mainly is confined to wood lacquer resin aspect, its hardness height, and unit elongation is little.Elasticity does not reach the requirement of waterproof paint.And present waterborne polyurethane resin solid content is lower, and water tolerance is relatively poor.
Summary of the invention
At the deficiency that prior art exists, one of purpose of the present invention is to provide the water-base polyurethane/acrylate composite elastic resin of a kind of snappiness, enhanced water resistance, environmental protection.
Another object of the present invention is to provide the synthetic method of this water-base polyurethane/acrylate composite elastic resin.
Goal of the invention of the present invention is achieved by the following technical solution:
A kind of polyurethane/acrylate composite elastic resin, its composition and fill a prescription as follows:
Admixtured polyether 45-65 part
Tolylene diisocyanate (TDI) 15-40 part
Active emulsifier 1-10 part
Hydroxy acrylate 1-15 part
Catalyzer 0.05-1.0 part
Neutralizing agent 1-10 part
Thinner 5-50 part
Water 200-400 part
Crosslinked (chain extension) agent 0.2-6.0 part
(methyl) acrylate 50-150 part
Initiator 10-50 part
Above component is parts by weight.
Wherein said admixtured polyether is one or more of N210, N210E, N220, N3050, PTG.
Wherein said active emulsifier is a dimethylol propionic acid.
Wherein said catalyzer is one or more of organotin, triethylamine, stannous octoate.
Wherein said neutralizing agent is a triethylamine.
Wherein said thinner is butanone and/or acetone.
Wherein said crosslinked (chain extension) agent be quadrol, dichloro diaminodiphenyl-methane, propylene glycol two-amine is swashed one or more of benzoic ether.
Described initiator is a persulfate solution, as Sodium Persulfate, Potassium Persulphate etc.
The synthetic method of this water-base polyurethane/acrylate composite elastic resin in turn includes the following steps:
A, with admixtured polyether at 120-140 ℃, stir dehydration 1-2 hour under the 700-760mmHg vacuum tightness, logical then nitrogen adds active emulsifier down, stir, be cooled to 30-50 ℃, add tolylene diisocyanate and catalyzer, constant temperature 75-85 ℃ 2-3 hour, add hydroxy acrylate and continue reaction 0.5-1 hour down for 75-85 ℃;
B, be cooled to 50 ℃ then and add a part of thinners and whole neutralizing agents, 50-60 ℃ of insulation 40-60 minute down adds thinner, is cooled to below 10 ℃, and above system was poured in the frozen water dispersion and emulsion 20-40 minute, adds crosslinked (chain extension) agent therebetween;
C, in above-mentioned system, add (methyl) acrylate and initiator, adopt semi-continuous process synthesis of polyurethane/acrylate composite elastic emulsion.
The invention has the beneficial effects as follows: it had both kept the excellent properties of Polyurethane, and again that polyacrylic ester is good weathering resistance, gloss retention, water tolerance are incorporated in the resin.Simultaneously make elastic resin and Water-borne modification, to reach environmental protection and high performance requirements through special formulation and technology.The solid content of this resin is 37.8% after testing, and tensile strength is 18.5MPa, and unit elongation reaches 656%, and water tolerance reaches relevant coating criterion of acceptability.
Embodiment
How further specify the present invention below in conjunction with specific embodiment realizes:
Embodiment 1:
With 49 parts of (forming) admixtured polyethers by N210, N220, N3050 at 130 ℃, mix dehydration 1 hour under the 740mmHg vacuum tightness, logical then nitrogen adds 19.2 parts of dimethylol propionic acid solution down, stirred 30 minutes, be cooled to 40 ℃, add 24.1 parts of tolylene diisocyanates and 0.05 part of organotin, 80 ℃ of reactions of constant temperature 2 hours add 3 parts of hydroxy acrylates and continue reaction 1 hour down for 80 ℃.
Be cooled to 50 ℃ then and add 15 parts of butanone and 4.5 parts of triethylamines, 50-60 ℃ is incubated 40 minutes down, adds 25 parts of butanone, is cooled to below 10 ℃, pours above system into 300 parts of frozen water high speed dispersion and emulsions 30 minutes, adds 2 parts of quadrols therebetween.
2. add 12 parts of (methyl) acrylate and 6 parts of potassium persulfate solutions in above-mentioned polyaminoester emulsion, 80 ℃ were reacted 0.5 hour down, dripped 48 parts of (methyl) acrylate and 12 parts of potassium persulfate solutions then in 2 hours.Be warming up to 85 ℃, add 6 parts of potassium persulfate solutions again, be incubated half an hour.
3. butanone is removed in above emulsion underpressure distillation, water-base polyurethane/acrylate composite elastic resin.
Embodiment 2:
With 50 parts of (forming) admixtured polyethers by N210, N210E, N220 at 140 ℃, mix dehydration 1 hour under the 720mmHg vacuum tightness, logical then nitrogen adds 20 parts of dimethylol propionic acid solution down, stirred 30 minutes, be cooled to 40 ℃, add 25.6 parts of tolylene diisocyanates and 0.07 part of stannous octoate, 85 ℃ of reactions of constant temperature 2 hours.Add 3.2 parts of hydroxy acrylates and continue reaction 1 hour down for 80 ℃.Be cooled to 50 ℃ then and add 30 parts of acetone and 5 parts of triethylamines, 50-60 ℃ is incubated 40 minutes down, adds 20 parts of acetone, is cooled to below 10 ℃, pour above system into 320 parts of frozen water high speed dispersion and emulsions 30 minutes, add 1.8 parts of dichloro diaminodiphenyl-methanes therebetween.
2. add 8 parts of (methyl) acrylate and 5 parts of Sodium Persulfate solution in above-mentioned polyaminoester emulsion, 80 ℃ were reacted 0.5 hour down, dripped 32 parts of (methyl) acrylate and 10 parts of Sodium Persulfate solution then in 2 hours.Be warming up to 85 ℃, add 5 parts of Sodium Persulfate solution again, be incubated half an hour.
3. acetone is removed in above emulsion underpressure distillation, water-base polyurethane/acrylate composite elastic resin.
Embodiment 3:
With 100 parts of admixtured polyethers (forming) by N210, PTG at 130 ℃, mix dehydration 1 hour under the 760mmHg vacuum tightness, logical then nitrogen adds 35 parts of dimethylol propionic acid solution down, stirred 30 minutes, be cooled to 40 ℃, add 51.2 parts of tolylene diisocyanates and 0.14 part of organotin, 80 ℃ of reactions of constant temperature 2 hours.Add 6.4 parts of hydroxy acrylates and continue reaction 1 hour down for 80 ℃.Be cooled to 50 ℃ then and add 60 parts of butanone and 10 parts of triethylamines, 50-60 ℃ is incubated 50 minutes down, adds 35 parts of butanone, is cooled to below 10 ℃, pours above system into 650 parts of frozen water high speed dispersion and emulsions 30 minutes.Add therebetween 3.6 parts of propylene glycol two-amine is swashed benzoic ether and quadrol.
2. add 20 parts of (methyl) acrylate and 14 parts of potassium persulfate solutions in above-mentioned polyaminoester emulsion, 80 ℃ were reacted 0.5 hour down, dripped 80 parts of (methyl) acrylate and 28 parts of potassium persulfate solutions then in 2 hours.Be warming up to 85 ℃, add 14 parts of potassium persulfate solutions again, be incubated half an hour.
3. butanone is removed in above emulsion underpressure distillation, water-base polyurethane/acrylate composite elastic resin.
Above-mentioned synthetic water-base polyurethane/acrylate composite elastic resin solid content after testing is 37.8% (pressing GB1725-79 (89) method measures), tensile strength is 18.5MPa, unit elongation reaches 656% (pressing the GB/T16777-1997 method measures), and water tolerance reaches relevant coating criterion of acceptability.
Claims (9)
1, a kind of water-base polyurethane/acrylate composite elastic resin, its component and content are:
Admixtured polyether 45-65 part
Tolylene diisocyanate (TDI) 15-40 part
Active emulsifier 1-10 part
Hydroxy acrylate 1-15 part
Catalyzer 0.05-1.0 part
Neutralizing agent 1-10 part
Thinner 5-50 part
Water 200-400 part
Crosslinked (chain extension) agent 0.2-6.0 part
(methyl) acrylate 50-150 part
Initiator 10-50 part
Above component is parts by weight.
2, water-base polyurethane/acrylate composite elastic resin according to claim 1 is characterized in that: described admixtured polyether is one or more among N210, N210E, N220, N3050 or the PTG.
3, water-base polyurethane/acrylate composite elastic resin according to claim 1 is characterized in that: described active emulsifier is a dimethylol propionic acid.
4, water-base polyurethane/acrylate composite elastic resin according to claim 1 is characterized in that: described catalyzer is one or more in organotin, triethylamine or the stannous octoate.
5, water-base polyurethane/acrylate composite elastic resin according to claim 1 is characterized in that: described neutralizing agent is a triethylamine.
6, water-base polyurethane/acrylate composite elastic resin according to claim 1 is characterized in that: described thinner is one or both in butanone or the acetone.
7, water-base polyurethane/acrylate composite elastic resin according to claim 1 is characterized in that: described crosslinked (chain extension) agent be quadrol, dichloro diaminodiphenyl-methane, propylene glycol two-amine is swashed in the benzoic ether one or more.
8, water-base polyurethane/acrylate composite elastic resin according to claim 1 is characterized in that: described initiator is a persulfate solution.
9, according to claim 1,2,3,4,5,6,7 or 8 described water-base polyurethane/acrylate composite elastic resins, its synthetic method in turn includes the following steps:
A, with admixtured polyether at 120-140 ℃, stir dehydration 1-2 hour under the 700-760mmHg vacuum tightness, logical then nitrogen adds active emulsifier down, stir, be cooled to 30-50 ℃, add tolylene diisocyanate and catalyzer, constant temperature 75-85 ℃ 2-3 hour, add hydroxy acrylate and continue reaction 0.5-1 hour down for 75-85 ℃;
B, be cooled to 50 ℃ then and add a part of thinners and whole neutralizing agents, 50-60 ℃ of insulation 40-60 minute down adds thinner, is cooled to below 10 ℃, and above system was poured in the frozen water dispersion and emulsion 20-40 minute, adds crosslinked (chain extension) agent therebetween;
C, in above-mentioned system, add (methyl) acrylate and initiator, adopt semi-continuous process synthesis of polyurethane/acrylate composite elastic emulsion.
D, remove thinner, promptly get water-base polyurethane/acrylate composite elastic resin with distillation under vacuum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510024409 CN1670052A (en) | 2005-03-16 | 2005-03-16 | Water-base polyurethane / acrylate composite elastic resin and method for synthesizing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510024409 CN1670052A (en) | 2005-03-16 | 2005-03-16 | Water-base polyurethane / acrylate composite elastic resin and method for synthesizing same |
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| CN1670052A true CN1670052A (en) | 2005-09-21 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101151288B (en) * | 2005-03-29 | 2011-06-08 | 日本聚氨酯工业株式会社 | Modified water-based resin composition |
| CN102827325A (en) * | 2012-08-27 | 2012-12-19 | 上海涂料有限公司技术中心 | Preparation method and application of core-shell polyurethane/acrylic acid composite emulsion |
| CN108402540A (en) * | 2017-12-30 | 2018-08-17 | 戴承 | A kind of pure upright cotton is without glue net underwear and preparation method thereof |
| CN108402529A (en) * | 2018-01-15 | 2018-08-17 | 宏杰内衣股份有限公司 | A kind of short fine flocking underpants |
-
2005
- 2005-03-16 CN CN 200510024409 patent/CN1670052A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101151288B (en) * | 2005-03-29 | 2011-06-08 | 日本聚氨酯工业株式会社 | Modified water-based resin composition |
| CN102827325A (en) * | 2012-08-27 | 2012-12-19 | 上海涂料有限公司技术中心 | Preparation method and application of core-shell polyurethane/acrylic acid composite emulsion |
| CN102827325B (en) * | 2012-08-27 | 2014-08-13 | 上海涂料有限公司技术中心 | Preparation method and application of core-shell polyurethane/acrylic acid composite emulsion |
| CN108402540A (en) * | 2017-12-30 | 2018-08-17 | 戴承 | A kind of pure upright cotton is without glue net underwear and preparation method thereof |
| CN108402529A (en) * | 2018-01-15 | 2018-08-17 | 宏杰内衣股份有限公司 | A kind of short fine flocking underpants |
| CN108402529B (en) * | 2018-01-15 | 2020-05-12 | 宏杰内衣股份有限公司 | Short fiber flocking pants |
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