CN103694940A - Method for preparing fast curing one-component water-based polyurethane adhesive - Google Patents
Method for preparing fast curing one-component water-based polyurethane adhesive Download PDFInfo
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Abstract
The invention discloses a method for preparing a fast curing one-component water-based polyurethane adhesive. The method comprises steps of carrying out reaction on polyalcohol and diisocyanate so as to generate -NCO-terminated prepolymer, adding a hydrophilic chain extender for further reaction, extending the chain with micromolecule dihydric alcohol, neutralizing through triethylamine so as to adjust pH value to be 6-7, adding a drier and lowering viscosity of the material through acetone, dispersing into light blue semitransparent emulsion through deionized water, and finally, distilling under reduced pressure so as to remove the solvent acetone to obtain the fast curing one-component water-based polyurethane adhesive. According to the water-based polyurethane adhesive prepared by the method, the peel strength (PVC(polyvinyl chloride)/PVC) is 6N/mm<2>, the heat-resistance temperature of the adhesive (without curing agent) can reach 150 DEG C, and the adhesive can be cured in 3-5 minutes at room temperature.
Description
Technical field
The present invention relates to a kind of preparation method of Aqueous Polyurethane Adhesives, particularly relate to a kind of preparation method that can quick-setting Aqueous Polyurethane Adhesives.
Background technology
Aqueous polyurethane is to using the macromolecular material that water to replace organic solvent grows up as dispersion medium, uses safe, nontoxic, non-environmental-pollution, is called as Green Product.Along with scientific and technical progress, and environmental protection relevant law requires day by day to become tight, and environment-friendly type aqueous polyurethane replaces solvent borne polyurethane has become inevitable development trend.
The maximum differential of Aqueous Polyurethane Adhesives and solvent-based adhesive is, aqueous polyurethane is to take water as medium, due to specific heat of water hold and vaporization heat high, therefore the rate of drying of aqueous polyurethane is slow.Particularly, in winter, its solidification rate is slower, sometimes the coating next day toughness still after spraying.Therefore, in requiring the field of flowing water construction operation, its application is limited by very large, and this also becomes the Aqueous Polyurethane Adhesives thorough major reason of replace solvents type polyurethane sizing agent always.
Current Aqueous Polyurethane Adhesives kind both domestic and external is a lot, but is mostly tens of minutes to curing sizing agent product of a few hours, affects construction speed because set time is oversize, can not meet processing requirement.Even some product is that the two components of solidifying agent and sizing agent are used, before applying glue, join glue, the ratio of two kinds of components of this series products changes on bond properties impact greatly, applying glue more complicated, increased operation sequence and used difficulty, having made its application be affected and limit.
Therefore, people are being engaged in always and are accelerating the aqueous polyurethane research of set time, as CN 101787253B, " one-component solvent-free polyurethane adhesive and preparation method thereof and feedstock composition " discloses a kind of sizing agent for hard polyurethane foam plate and steel plate bonding, its gel time 0.5 hour, completely 4～8 hours set times.CN 102477270A, " a kind of water-proof fast-curing adhesive " disclosed sizing agent needs about 10 minutes gel solidifications to produce cohesive strength, and its set time is still longer.
Summary of the invention
The object of this invention is to provide a kind of preparation method that can fast setting monocomponent waterborne polyurethane sizing agent, the Aqueous Polyurethane Adhesives preparing with the inventive method, curable in 3～5 minutes at normal temperatures.
Preparation method that can fast-curing one-component Aqueous Polyurethane Adhesives of the present invention comprises the following steps:
A. in the polyester polyol that the number-average molecular weight after dehydration is 1000～3000, drip the dibutyl tin laurate that accounts for polyester polyol weight 0.01～0.05%, add vulcabond, 70～95 ℃ of reaction 1.5～2.5h, the performed polymer of generation～NCO end group, add the amount of vulcabond to meet :-NCO :-OH=1～4.5: 1, wherein-NCO represents isocyanate group mole number, and-OH represents polyester polyols alcoholic extract hydroxyl group mole number;
B. according to the mole ratio of hydrophilic chain extender and polyester polyol, be 0.1～2: 1, be added into hydrophilic chain extender, in 75～95 ℃ of chain extending reaction 0.5～1h;
C. according to the mole ratio of small molecules dibasic alcohol and polyester polyol, be 0.01～1.5: 1 ratio, add small molecules dibasic alcohol, in 70～90 ℃ of chain extending reaction 2～4h;
D. use in triethylamine and regulate reaction solution to pH value 6～7,
E. add the acetone reduction material viscosity that accounts for the siccative of solid ingredient 0.1%～2% and account for polyester polyol weight 10～20 %, add deionized water and stirring 2～10h, be dispersed into light blue translucent emulsion;
F. vacuum decompression desolvation acetone obtain single-component can quick-setting Aqueous Polyurethane Adhesives.
In preparation method of the present invention, described polyester polyol refers to a kind of in poly-adipic acid glycol ester, poly-adipic acid butanediol ester, poly-adipic acid glycol ether ester, poly-adipic acid hexylene glycol ester, poly-adipic acid DOPCP or poly-adipic acid dipropylene glycol ester or several arbitrary proportion mixtures.
In preparation method of the present invention, described vulcabond is a kind of in tolylene diisocyanate (TDI), isophorone diisocyanate (IPDI), hexamethylene diisocyanate (HDI), dicyclohexyl vulcabond (HMDI) or '-diphenylmethane diisocyanate (MDI).
In preparation method of the present invention, the hydrophilic chain extender of use refers to dimethylol propionic acid, dimethylolpropionic acid, dihydroxymethyl half ester, 2 hydroxy propanoic acid, resorcylic acid or dyhydrobutanedioic acid.
In preparation method of the present invention, the small molecules dibasic alcohol of use refers to BDO, ethylene glycol, propylene glycol, hexylene glycol, glycol ether or Triethylene glycol.
The present invention uses isocaprylic acid metal-salt, metallic naphthenate or nonmetal ester compound as siccative, and wherein, described isocaprylic acid metal-salt or metallic naphthenate comprise cobalt, iron, zinc, copper, calcium, lead, the magnesium salts of isocaprylic acid or naphthenic acid.Described nonmetal ester compound comprises hexanodioic acid two (2-ethyl hexyl) ester, dicyclohexyl phthalate, N-Hexyl methacrylate, lauryl methacrylate(LMA).
The single-component water-based adhesive for polyurethane that adopts the inventive method to prepare is a kind of environment-friendly water-based polyurethane emulsion, its solid content can reach 50%, viscosity can be controlled at 100～500cp, cohesive strength is high, can meet the needs that high strength bond requires, main is that solidification rate is fast, curable in normal temperature 3～5 minutes, rate of drying and solvent-based adhesive are suitable, can be used for continuous construction technology.
Preparation method of the present invention, when using siccative modification, has greatly reduced the add-on of hydrophilic chain extender, has significantly improved set time and the solid content of Aqueous Polyurethane Adhesives, and emulsion property is stable, and initial adhesive strength is large.
Aqueous Polyurethane Adhesives prepared by the present invention is suitable for applying in the fields such as computer desk, sound box panel, cabinet, door and furniture making and automotive interior trim, wrapping material, timber, PVC and leather.In environmental protection, solid content, initial adhesive strength, water tolerance and the aspect such as heat-resisting, all reach the required product quality indicator of user.
Embodiment
Embodiment 1
The poly-adipic acid butanediol ester that adds 75g number-average molecular weight 2000 in four-hole boiling flask, heating and melting, 100 ℃ vacuumize 1.5h, cool to 60 ℃, add two dibutyl tin laurates, react 2h with 15gIPDI, add again 2.2g dimethylol propionic acid reaction 0.5h, add 0.6g1, 4-butyleneglycol insulation reaction 2h, with 1.5g triethylamine neutralization reaction 30min, add 1g siccative hexanodioic acid two (2-ethyl hexyl) ester, with 10g acetone, reduce material viscosity simultaneously, add 75g deionized water rapid dispersion, vacuumize desolvation acetone and obtain Aqueous Polyurethane Adhesives.Product is light blue emulsion, and normal temperature solidifies for 3～5 minutes, PVC/PVC stripping strength 5～7N/mm
2.
Embodiment 2
In four-hole boiling flask, add 75g to gather adipic acid butanediol ester, heating and melting, 100 ℃ vacuumize 1.5h, cool to 55 ℃, add two dibutyl tin laurates, add 13.5gIPDI reaction 2h, add again 2g dimethylol propionic acid reaction 0.5h, add 1g propylene glycol insulation reaction 2h, with 1.3g triethylamine neutralization reaction 30min, add 1.5g dicyclohexyl phthalate, with 10g acetone, reduce material viscosity simultaneously, add 80g deionized water rapid dispersion, vacuumize desolvation acetone and obtain Aqueous Polyurethane Adhesives.Product is light blue emulsion, and normal temperature solidifies for 3～5 minutes, PVC/PVC stripping strength 5～7N/mm
2.
Embodiment 3
In four-hole boiling flask, add 75g to gather adipic acid butanediol ester, heating and melting, 100 ℃ vacuumize 1h, cool to 85 ℃, drip two dibutyl tin laurates, add 26gIPDI reaction 2h, add again 5g dimethylolpropionic acid reaction 0.5h, add 2.5g1,4-butyleneglycol insulation reaction 3h, with 3.5g triethylamine neutralization reaction 30min, add 0.8g dicyclohexyl phthalate, with 20g acetone, reduce material viscosity simultaneously, then add 110g deionized water rapid dispersion, vacuumize and slough solvent acetone, obtain Aqueous Polyurethane Adhesives.Product is light blue translucent emulsion, and normal temperature solidifies for 3～5 minutes, and stripping strength is PVC/PVC 5～7 N/mm
2.
Embodiment 4
In four-hole boiling flask, add 75g to gather adipic acid DOPCP, heating and melting, 100 ℃ vacuumize 1.5h, cool to 45 ℃, add 16.2gTDI reaction 2h, then add 3.2g dimethylol propionic acid reaction 0.5h, then add 0.25g1,4-butyleneglycol insulation reaction 2h, with 2g triethylamine neutralization reaction 30min, add 1.2g dicyclohexyl phthalate, with 25g acetone, reduce material viscosity simultaneously, add 90g deionized water rapid dispersion, vacuumize and slough acetone and obtain Aqueous Polyurethane Adhesives.Product is light blue emulsion, and normal temperature solidifies for 3～5 minutes, PVC/PVC stripping strength 5～7N/mm
2.
Embodiment 5
In four-hole boiling flask, add 75g to gather adipic acid DOPCP, heating and melting, 100 ℃ vacuumize 1.5h, cool to 50 ℃, add 14.4gTDI reaction 1.5h, then add 3.5g dimethylol propionic acid reaction 0.5h, add again 1g glycol ether insulation reaction 1.5h, with 2.5g triethylamine neutralization reaction 30min, add 1.1g hexanodioic acid two (2-ethyl hexyl) ester, with 10g acetone, reduce material viscosity simultaneously, add 85g deionized water rapid dispersion, vacuumize and slough acetone and obtain Aqueous Polyurethane Adhesives.Product is light blue emulsion, and normal temperature solidifies for 3～5 minutes, PVC/PVC stripping strength 5～7N/mm
2.
Embodiment 6
In four-hole boiling flask, add 75g to gather adipic acid DOPCP, heating and melting, 100 ℃ vacuumize 1.5h, cool to 55 ℃, add two dibutyl tin laurates, add 13.7gIPDI reaction 1.5h, then add 2.5g dimethylolpropionic acid reaction 0.5h, add 0.8g1,4-butyleneglycol insulation reaction 2h, with 2g triethylamine neutralization reaction 30min again, add 1.6g N-Hexyl methacrylate, with 20g acetone, reduce material viscosity simultaneously, then add 80g deionized water rapid dispersion, vacuumize and slough solvent acetone and obtain Aqueous Polyurethane Adhesives.Product is light blue emulsion, and normal temperature solidifies for 3～5 minutes, PVC/PVC stripping strength 5～7N/mm
2.
Embodiment 7
In four-hole boiling flask, add 75g to gather new penta glycol ester of adipic acid, heating and melting, 100 ℃ vacuumize dehydration 1h, cool to 70 ℃, drip a dibutyl tin laurate, add 17.5TDI reaction 2h, add again 6.2g dimethylol propionic acid reaction 40min, add 1g Triethylene glycol insulation reaction 3h, with 4.5g triethylamine neutralization reaction 30min, add 0.9g dicyclohexyl phthalate, with 17g acetone, reduce material viscosity simultaneously, add 95g deionized water, vacuumize and slough acetone, obtain Aqueous Polyurethane Adhesives.Product is light blue translucent emulsion, and normal temperature solidifies for 3～5 minutes, and PVC/PVC stripping strength is 5～7 N/mm2.
Embodiment 8
The poly-adipic acid hexylene glycol ester of 75g that adds number-average molecular weight 2000 in four-hole boiling flask, heating and melting, 100 ℃ vacuumize dehydration 1h, cool to 80 ℃, drip two dibutyl tin laurates, add 22g IPDI reaction 2.5h, add again 6g dihydroxymethyl half ester reaction 1h, add 0.8g ethylene glycol insulation reaction 3h, with 4.1g triethylamine neutralization reaction 30min, add 1.3g N-Hexyl methacrylate, with 10g acetone, reduce material viscosity simultaneously, add 100g deionized water rapid dispersion, vacuumize and slough acetone, obtain Aqueous Polyurethane Adhesives.Product is light blue translucent emulsion, and normal temperature solidifies for 3～5 minutes, and stripping strength is PVC/PVC 5～7 N/mm
2.
Claims (7)
1. a preparation method that can fast-curing one-component Aqueous Polyurethane Adhesives, comprises the following steps:
A. in the polyester polyol that the number-average molecular weight after dehydration is 1000～3000, drip the dibutyl tin laurate that accounts for polyester polyol weight 0.01～0.05%, add vulcabond, 70～95 ℃ of reaction 1.5～2.5h, the performed polymer of generation-NCO end group, add the amount of vulcabond to meet :-NCO :-OH=1～4.5: 1, wherein-NCO represents isocyanate group mole number, and-OH represents polyester polyols alcoholic extract hydroxyl group mole number;
B. according to the mole ratio of hydrophilic chain extender and polyester polyol, be 0.1～2: 1, be added into hydrophilic chain extender, in 75～95 ℃ of chain extending reaction 0.5～1h;
C. according to the mole ratio of small molecules dibasic alcohol and polyester polyol, be 0.01～1.5: 1 ratio, add small molecules dibasic alcohol, in 70～90 ℃ of chain extending reaction 2～4h;
D. use in triethylamine and regulate reaction solution to pH value 6～7,
E. add the acetone reduction material viscosity that accounts for the siccative of solid ingredient 0.1%～2% and account for polyester polyol weight 10～20 %, add deionized water and stirring 2～10h, be dispersed into light blue translucent emulsion;
F. vacuum decompression desolvation acetone obtain single-component can quick-setting Aqueous Polyurethane Adhesives.
2. preparation method according to claim 1, it is characterized in that described polyester polyol is a kind of in poly-adipic acid glycol ester, poly-adipic acid butanediol ester, poly-adipic acid glycol ether ester, poly-adipic acid hexylene glycol ester, poly-adipic acid DOPCP or poly-adipic acid dipropylene glycol ester, or several arbitrary proportion mixtures.
3. preparation method according to claim 1, is characterized in that described vulcabond is a kind of in tolylene diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate, dicyclohexyl vulcabond or '-diphenylmethane diisocyanate.
4. preparation method according to claim 1, is characterized in that described hydrophilic chain extender is dimethylol propionic acid, dimethylolpropionic acid, dihydroxymethyl half ester, 2 hydroxy propanoic acid, resorcylic acid or dyhydrobutanedioic acid.
5. preparation method according to claim 1, is characterized in that described small molecules dibasic alcohol is BDO, ethylene glycol, propylene glycol, hexylene glycol, glycol ether or Triethylene glycol.
6. preparation method according to claim 1, it is characterized in that described siccative is isocaprylic acid metal-salt, metallic naphthenate, or a kind of in hexanodioic acid two (2-ethyl hexyl) ester, dicyclohexyl phthalate, N-Hexyl methacrylate, lauryl methacrylate(LMA).
7. preparation method according to claim 6, is characterized in that described isocaprylic acid metal-salt or metallic naphthenate comprise cobalt, iron, zinc, copper, calcium, lead, the magnesium salts of isocaprylic acid or naphthenic acid.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073211A (en) * | 2014-06-06 | 2014-10-01 | 江苏宏远新材料科技有限公司 | Method for preparing water-based polyurethane adhesive |
| CN104087236A (en) * | 2014-07-30 | 2014-10-08 | 合肥工业大学 | Waterborne polyurethane adhesive for quick-drying soft package composite film and preparation method of adhesive |
| CN105086915A (en) * | 2015-08-31 | 2015-11-25 | 重庆中科力泰高分子材料股份有限公司 | Aqueous VC binder used for pharmaceutical packaging and preparation method thereof |
| CN109983082A (en) * | 2016-11-28 | 2019-07-05 | 阿科玛法国公司 | Curable composition |
| CN110358492A (en) * | 2019-08-01 | 2019-10-22 | 苏晓辉 | A kind of aqueous polyurethane flame-retardant adhesive and preparation method thereof |
| CN110387206A (en) * | 2019-08-08 | 2019-10-29 | 广州同欣康体设备有限公司 | Two-component bonding agent and preparation method thereof |
| CN111019078A (en) * | 2019-12-31 | 2020-04-17 | 北京华腾新材料股份有限公司 | Waterborne polyurethane curing agent and preparation method and application thereof |
| CN112795360A (en) * | 2020-12-31 | 2021-05-14 | 佛山市三水日邦化工有限公司 | Water-based spraying glue for painting on artware gift box package and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157843A (en) * | 2007-09-20 | 2008-04-09 | 华明扬 | Preparation method of environment-friendly type aqueous polyurethane hot sol for poncho artificial leather |
| CN101328383A (en) * | 2008-07-17 | 2008-12-24 | 安徽大学 | Production method for liner gloves aqueous polyurethane coating connection material |
| CN101921381A (en) * | 2010-09-07 | 2010-12-22 | 上海英诺威化学有限公司 | Preparation method and application of aqueous polyurethane latex as vacuum plastic-absorption adhesive |
| CN102492113A (en) * | 2011-12-01 | 2012-06-13 | 山西省应用化学研究所 | Method for preparing waterborne polyurethane adhesive based on hexamethylene diisocyanate (HDI)-toluene diisocynate (TDI) |
| CN102633979A (en) * | 2012-04-28 | 2012-08-15 | 安徽大学 | Synthesis process for air-drying waterborne polyurethane and dispersion thereof |
-
2013
- 2013-12-15 CN CN201310679745.0A patent/CN103694940A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157843A (en) * | 2007-09-20 | 2008-04-09 | 华明扬 | Preparation method of environment-friendly type aqueous polyurethane hot sol for poncho artificial leather |
| CN101328383A (en) * | 2008-07-17 | 2008-12-24 | 安徽大学 | Production method for liner gloves aqueous polyurethane coating connection material |
| CN101921381A (en) * | 2010-09-07 | 2010-12-22 | 上海英诺威化学有限公司 | Preparation method and application of aqueous polyurethane latex as vacuum plastic-absorption adhesive |
| CN102492113A (en) * | 2011-12-01 | 2012-06-13 | 山西省应用化学研究所 | Method for preparing waterborne polyurethane adhesive based on hexamethylene diisocyanate (HDI)-toluene diisocynate (TDI) |
| CN102633979A (en) * | 2012-04-28 | 2012-08-15 | 安徽大学 | Synthesis process for air-drying waterborne polyurethane and dispersion thereof |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073211A (en) * | 2014-06-06 | 2014-10-01 | 江苏宏远新材料科技有限公司 | Method for preparing water-based polyurethane adhesive |
| CN104087236A (en) * | 2014-07-30 | 2014-10-08 | 合肥工业大学 | Waterborne polyurethane adhesive for quick-drying soft package composite film and preparation method of adhesive |
| CN104087236B (en) * | 2014-07-30 | 2016-03-30 | 合肥工业大学 | A kind of quick-dry type package compound film use polyurethane adhesive and preparation method thereof |
| CN105086915A (en) * | 2015-08-31 | 2015-11-25 | 重庆中科力泰高分子材料股份有限公司 | Aqueous VC binder used for pharmaceutical packaging and preparation method thereof |
| CN105086915B (en) * | 2015-08-31 | 2018-02-27 | 重庆中科力泰高分子材料股份有限公司 | Water-based VC adhesives for medical packaging and preparation method thereof |
| CN109983082A (en) * | 2016-11-28 | 2019-07-05 | 阿科玛法国公司 | Curable composition |
| CN109983082B (en) * | 2016-11-28 | 2021-11-02 | 阿科玛法国公司 | Curable composition |
| CN110358492A (en) * | 2019-08-01 | 2019-10-22 | 苏晓辉 | A kind of aqueous polyurethane flame-retardant adhesive and preparation method thereof |
| CN110387206A (en) * | 2019-08-08 | 2019-10-29 | 广州同欣康体设备有限公司 | Two-component bonding agent and preparation method thereof |
| CN111019078A (en) * | 2019-12-31 | 2020-04-17 | 北京华腾新材料股份有限公司 | Waterborne polyurethane curing agent and preparation method and application thereof |
| CN112795360A (en) * | 2020-12-31 | 2021-05-14 | 佛山市三水日邦化工有限公司 | Water-based spraying glue for painting on artware gift box package and preparation method thereof |
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Application publication date: 20140402 |