CN1730578A - Aqueous double-component polyester paint and its preparation method - Google Patents
Aqueous double-component polyester paint and its preparation method Download PDFInfo
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- CN1730578A CN1730578A CN 200510092910 CN200510092910A CN1730578A CN 1730578 A CN1730578 A CN 1730578A CN 200510092910 CN200510092910 CN 200510092910 CN 200510092910 A CN200510092910 A CN 200510092910A CN 1730578 A CN1730578 A CN 1730578A
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Abstract
The invention discloses a water-based dual-component polyester paint and its preparation process, wherein the pain comprises composition A and composition B by the ratio of 10:3-6, wherein the composition A comprises resin, addition agent and dissolvent, the composition B comprises curing agent and dissolvent, the curing agent is organosilicon resin with polyfunctional groups, the resin is alcohol soluble water-based acrylic resin, the composition A contains 70-90% of alcohol soluble water-based acrylic resin, the composition B contains 20-60% of organosilicon resin with polyfunctional groups. The polyester paint contains no benzene and dimethylbenzene dissolvent, methyl aldehyde, TDI and heavy metals.
Description
Technical field
The present invention relates to the chemistry painting industry field, particularly a kind of coating and preparation method thereof.
Background technology
Mainly contain water-miscible paint and polyester lacquer (oil-base paint) two types at present on the coating market.It is solvent that water-miscible paint adopts water; And polyester lacquer to adopt toluene, dimethylbenzene, ester class, ketone etc. be solvent.The time that reaches maximum hardness at water-miscible paint on the performance is more than 20 days, generally take about one month, and as long as polyester lacquer is 7～10 days, and water-fast, the chemical resistant properties of water-miscible paint and fullness ratio be all not as the polyester lacquer, and the construction environment of water-miscible paint requires to be higher than polyester and coats with lacquer simultaneously.Though the performance of polyester lacquer is higher than water-miscible paint because the solidifying agent that polyester coats with lacquer contains this toxic substance of isocyanic ester, and its to adopt toluene, dimethylbenzene, ester class, ketone etc. be solvent, cause the pollution of environment easily and for the murder by poisoning of human body.
Summary of the invention
The technical problem to be solved in the present invention is intended to overcome the deficiency of above-mentioned prior art, a kind of aqueous dual-component polyester lacquer is provided, its solidifying agent does not contain isocyanic ester, and it adopts water and ethanol as solvent, make this polyester lacquer outside having kept original performance, alleviated again for the pollution of environment with for the murder by poisoning of human body.
Another object of the present invention provides the preparation method of an above-mentioned aqueous dual-component polyester lacquer.
The technical solution used in the present invention is:
Aqueous dual-component polyester lacquer, form by first composition and second composition, wherein the first composition is by resin, additive and solvent composition, the second composition is by solidifying agent and solvent composition, it is characterized in that the quality group of two kinds of compositions is proportional is the first composition: second composition=10: 3～6, and described solidifying agent is the polyfunctional group silicone resin, described resin is the ethanol-soluble type water-borne acrylic resin, the first composition contains 70～90% ethanol-soluble type water-borne acrylic resin, contains 20～60% polyfunctional group silicone resin in the second composition.
The method for preparing aqueous dual-component polyester lacquer of the present invention is:
(1) first preparation of compositions method
A, synthetic described ethanol-soluble type water-borne acrylic resin: with ethanol, Virahol and benzoyl peroxide add in the reactor, stir, be warming up to 78～80 ℃ → acrylate monomer is mixed, in 10～30% adding reactors wherein, 80 ℃ were reacted 10～30 minutes, remaining mixture was splashed at 3 hours, splash into benzoyl peroxide solution simultaneously, insulation reaction 1～4 hour → be cooled to 40～60 ℃ then, add N, the N dimethylethanolamine, stir and formed resin in 10～30 minutes, wherein, material rate used when utilizing this method to prepare is: ethanol: Virahol: vinylformic acid: methyl methacrylate: butyl acrylate: N, N dimethylethanolamine: water: benzoyl peroxide=20～40: 5～15: 3～8: 10～20: 3～10: 1～5: 0～30: 0.5～3;
B, resin add is disperseed in the cylinder, stirring at low speed adds 1～8% film coalescence aid, 0.1～1% defoamer, 0.1～1% wetting agent, 1～3% mute powder, high speed dispersion 30 minutes then;
C, low speed disperse, and add 0.1～1% flow agent, solvent, 0.1～0.3% deodovization agent, and low speed disperseed 10 minutes, was packaged to be the first composition of described waterborne polyester paint;
In the first composition, add the second composition when (two) joining lacquer in proportion.
Compared with the prior art of the present invention have a following positively effect: solidifying agent is the polyfunctional group silicone resin, avoided the murder by poisoning of isocyanate curing agent for human body, and adopt the second alcohol and water as solvent, have nontoxic, fire-retardant, free from environmental pollution, save advantage such as the energy; Do not contain benzene kind solvents such as any benzene, dimethylbenzene, do not contain formaldehyde, do not contain TDI, low VOC does not contain heavy metal; Kept the good paint film effect of traditional polyester lacquer, and had the hardness height, fullness ratio is good, easily construction, and strong adhesion, wear resistance is strong, scratch resistance, advantage such as xanthochromia not.
Bi-component polyester lacquer involved in the present invention in addition also has following characteristics: 1, contain admittedly: first, component B is all greater than 45%; 2, surface drying: 20 minutes; 3, do solid work: 2 hours; 4, hardness: 2H; 5, sticking power: 1 grade; 6, water tolerance: 72 hours no changes; 7, alcohol resistance: 8 hours no changes of 50% ethanol; 8, anti-cup heat: 100 degree no changes; 9, scratch resistance: good; 10, gloss: clear lacquer can reach 102 degree; 11, grinability: good; 12, fullness ratio: good; 13, preservative property: do not need to add any sanitas; 14, the shelf lives: more than 12 months; 15, economic results in society: for users provide a kind of environmental protection, health, high-quality lacquer.
Moved in the same day but use the user to construct the same day, without any formaldehyde, benzene class, isocyanate species harm.Product can reach the technical indicator of solvent-borne type polyester-polyurethane lacquer HG/T3608-1999.
Embodiment
Below will be described in detail the specific embodiment of the present invention.
As do not have other and indicate, the material proportion of composing of indication is mass ratio herein, and substances content per-cent is mass percent.
The present invention relates to a kind of aqueous dual-component polyester lacquer, form by first composition and second composition, wherein the first composition is by resin, additive and solvent composition, the second composition is by solidifying agent and solvent composition, it is characterized in that the quality group of two kinds of compositions is proportional is the first composition: second composition=10: 3～6, and described solidifying agent is the polyfunctional group silicone resin, described resin is the ethanol-soluble type water-borne acrylic resin, the first composition contains 70～90% ethanol-soluble type water-borne acrylic resin, contains 20～60% polyfunctional group silicone resin in the second composition.The polyfunctional group silicone resin is a linking agent, meeting and ethanol-soluble type water-borne acrylic resin generation crosslinking reaction, improved the cross-linking density of coating greatly, and adopt polyfunctional group silicone resin of the present invention and ethanol-soluble type water-borne acrylic resin, can improve the hardness of polyester lacquer greatly, and make the polyester lacquer have excellent scratch resistance performance, water-fast 72 hours, anti-pure more than 5 hours.In construction process, the workmen may be chosen in described two-pack and add thinner, the preferred employing among the present invention with the thinner of edible ethanol as described polyester lacquer, and the ratio of described two-pack and thinner is the first composition: second composition: thinner=10: 3～6: 0～10.Wherein, adopt preferably that the quality group of two kinds of compositions is proportional to be the first composition: second composition=2: 1.
Aqueous dual-component polyester lacquer of the present invention, it is to contain amino silane coupling agent that the polyfunctional group silicone resin preferably adopts, further, preferably adopt wherein one or more of aminopropyl triethoxysilane, aminopropyl methoxy silane, aminoethyl-aminopropyl trimethoxysilane, two (trimethoxy-silylpropyl) amine, aminoethyl-aminopropyl methyl dimethoxysilane as solidifying agent.
Aqueous dual-component polyester lacquer of the present invention, the ethanol-soluble type water-borne acrylic resin preferably adopts the ethanol-soluble type water-borne acrylic resin that gets through following method preparation: with ethanol, Virahol and benzoyl peroxide add in the reactor, stir, be warming up to 78～80 ℃ → acrylate monomer is mixed, in 10～30% adding reactors wherein, 80 ℃ were reacted 10～30 minutes, remaining mixture was splashed at 3 hours, splash into benzoyl peroxide solution simultaneously, insulation reaction 1～4 hour → be cooled to 40～60 ℃ then, add N, the N dimethylethanolamine stirs and formed resin in 10～30 minutes.Wherein, material rate used when utilizing this method to prepare is: ethanol: Virahol: vinylformic acid: methyl methacrylate: butyl acrylate: N, N dimethylethanolamine: water: benzoyl peroxide=20～40: 5～15: 3～8: 10～20: 3～10: 1～5: O～30: 0.5～3.The ethanol-soluble type water-borne acrylic resin for preparing through this method itself contains the water that accounts for deadweight O～30%.
Aqueous dual-component polyester lacquer of the present invention all contains solvent in described two-pack, the solvent of employing is the second alcohol and water, and both proportion of composing are ethanol: water=10: 0～10.The drying of waterborne polyester paint was accelerated when ethanol made construction, and water has the effect that makes its slow curing, the mixing of these two kinds of components makes that the time of drying of waterborne polyester paint is suitable, and has avoided toluene in the polyester lacquer in the past, dimethylbenzene, ester class, ketone equal solvent for the pollution of environment with for the murder by poisoning of human body again.
Further, aqueous dual-component polyester lacquer of the present invention contains 2～26% solvent in the first composition, and all the other are additive.
Further, in the aqueous dual-component polyester lacquer of the present invention, described additive is flow agent, defoamer, film coalescence aid, wetting agent, deodovization agent and mute powder, and these additives can adopt kind commonly used in the general waterborne polyester paint.Wherein, flow agent preferably adopts BYK333, the preferred concentration of flow agent be the first composition O.1～1%; Defoamer preferably adopts BYK019 or TEGO901, and the preferred concentration of defoamer is 0.1～1% of a first composition; Film coalescence aid preferably adopts alcohols or pure ethers, and the preferred concentration of film coalescence aid is 1～8% of a first composition; The preferred concentration of wetting agent is 0.1～1% of a first composition; The preferred concentration of deodovization agent is 0.1～0.3% of a first composition; The preferred concentration of mute powder is 1～3% of a first composition.
Method embodiment 1～6
Respectively according to the synthetic as follows ethanol-soluble type water-borne acrylic resin of specified each component in the table 1: ethanol, Virahol and benzoyl peroxide are added in the reactor, stir, be warming up to 78～80 ℃ → acrylate monomer is mixed, in 10～30% adding reactors wherein, 80 ℃ were reacted 10～30 minutes, remaining mixture was splashed at 3 hours, splash into benzoyl peroxide solution simultaneously, insulation reaction 1～4 hour → be cooled to 40～60 ℃ then, add N, the N dimethylethanolamine stirs and formed resin in 10～30 minutes.
Method embodiment 7～12
Respectively according to first composition in the synthetic as follows water-based bi-component polyester lacquer of specified each component in the table 2: according to the synthetic ethanol-soluble type water-borne acrylic resin of method embodiment 1～6 described method; Resin is added in the dispersion cylinder, and stirring at low speed adds 1～8% film coalescence aid, 0.1～1% defoamer, 0.1～1% wetting agent, 1～3% mute powder, high speed dispersion 30 minutes then; Low speed disperses, add 0.1～1% flow agent, solvent, 0.1～0.3% deodovization agent, low speed disperseed 10 minutes, was packaged to be the first composition of described waterborne polyester paint, as construct and need the preparation coloured enamel, when opening the packing of first composition, add required colorant and with the resin mixing; In the first composition, add the second composition when joining lacquer in proportion.
Method embodiment 13～18
Mix according to specified each component of table 3 respectively and form second composition in the aqueous dual-component polyester lacquer.
Method embodiment 19～22
When joining lacquer, mix forming aqueous dual-component polyester lacquer respectively according to specified each component of table 4.
Table 1
| The component concentration ratio | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| Ethanol | 20 | 30 | 40 | 40 | 30 | 20 |
| Virahol | 15 | 10 | 5 | 5 | 10 | 15 |
| Vinylformic acid | 6 | 8 | 3 | 8 | 3 | 5 |
| Methyl methacrylate | 20 | 10 | 15 | 15 | 20 | 10 |
| Butyl acrylate | 3 | 6 | 10 | 10 | 7 | 3 |
| N, the N dimethylethanolamine | 5 | 3 | 1 | 1 | 3 | 5 |
| Water | 15 | 30 | 0 | 25 | 5 | 10 |
| Benzoyl peroxide | 3 | 0.5 | 2 | 1.5 | 3 | 0.5 |
Table 2
| Component concentration per-cent | Embodiment 7 | Embodiment 8 | Embodiment 9 | Embodiment 10 | Embodiment 11 | Embodiment 12 |
| Water-borne acrylic resin | 70 | 90 | 80 | 80 | 90 | 70 |
| Solvent (water) | 11.6 | 0 | 2 | 3.6 | 0.3 | 11.6 |
| Ethanol | 11.7 | 2 | 7.1 | 4.5 | 1 | 14.5 |
| Flow agent | 0.5 | 1 | 0.1 | 1 | 0.1 | 0.6 |
| Defoamer | 1 | 0.1 | 0.6 | 0.5 | 1 | 0.1 |
| Film coalescence aid | 1 | 5 | 8 | 8 | 4 | 1 |
| Wetting agent | 1 | 0.6 | 0.1 | 0.1 | 0.5 | 1 |
| Deodovization agent | 0.2 | 0.3 | 0.1 | 0.3 | 0.1 | 0.2 |
| Mute powder | 3 | 1 | 2 | 2 | 3 | 1 |
Table 3
| Component concentration per-cent | Embodiment 13 | Embodiment 14 | Embodiment 15 | Embodiment 16 | Embodiment 17 | Embodiment 18 |
| Solidifying agent | 20 | 40 | 60 | 60 | 50 | 30 |
| Water | 30 | 25 | 0 | 20 | 15 | 20 |
| Ethanol | 50 | 35 | 40 | 20 | 35 | 50 |
Table 4
| The component concentration ratio | Embodiment 19 | Embodiment 20 | Embodiment 21 | Embodiment 22 |
| The first composition | 10 | 10 | 10 | 10 |
| The second composition | 3 | 4 | 5 | 6 |
Claims (10)
1, aqueous dual-component polyester lacquer, form by first composition and second composition, wherein the first composition is by resin, additive and solvent composition, the second composition is by solidifying agent and solvent composition, it is characterized in that the quality group of two kinds of compositions is proportional is the first composition: second composition=10: 3～6, and described solidifying agent is the polyfunctional group silicone resin, described resin is the ethanol-soluble type water-borne acrylic resin, the first composition contains 70～90% ethanol-soluble type water-borne acrylic resin, contains 20～60% polyfunctional group silicone resin in the second composition.
2, aqueous dual-component polyester lacquer according to claim 1 is characterized in that described polyfunctional group silicone resin is to contain amino silane coupling agent.
3, aqueous dual-component polyester according to claim 2 lacquer is characterized in that described to contain amino silane coupling agent be wherein one or more of aminopropyl triethoxysilane, aminopropyl methoxy silane, aminoethyl-aminopropyl trimethoxysilane, two (trimethoxy-silylpropyl) amine, aminoethyl-aminopropyl methyl dimethoxysilane.
4, aqueous dual-component polyester lacquer according to claim 1 is characterized in that described ethanol-soluble type water-borne acrylic resin is got by following method preparation:
Ethanol, Virahol and benzoyl peroxide are added in the reactor, stir, be warming up to 78～80 ℃ → acrylate monomer is mixed, 10～30% adding in the reactors wherein, 80 ℃ of reactions 10～30 minutes, remaining mixture was splashed at 3 hours, splash into benzoyl peroxide solution simultaneously, insulation reaction 1～4 hour → be cooled to 40～60 ℃ adds N then, the N dimethylethanolamine stirs and formed resin in 10～30 minutes.
5, aqueous dual-component polyester lacquer according to claim 4, it is characterized in that described ethanol-soluble type water-borne acrylic resin is is ethanol by ratio: Virahol: vinylformic acid: methyl methacrylate: butyl acrylate: N, N dimethylethanolamine: water: benzoyl peroxide=20～40: 5～15: 3～8: 10～20: 3～10: 1～5: 0～30: 0.5～3 feedstock production and.
6,, it is characterized in that the quality group of two kinds of compositions is proportional and be the first composition: second composition=2: 1 according to the described aqueous dual-component polyester of the arbitrary claim of claim 1-5 lacquer.
7, according to the described aqueous dual-component polyester lacquer of the arbitrary claim of claim 1-5, it is characterized in that described solvent is the second alcohol and water, and both proportion of composing are ethanol: water=10: 0～10.
8, aqueous dual-component polyester lacquer according to claim 7 is characterized in that containing in the first composition 2～26% solvent, and all the other are additive.
9, aqueous dual-component polyester lacquer according to claim 8 is characterized in that described additive is flow agent, defoamer, film coalescence aid, wetting agent, deodovization agent and mute powder.
10, preparation is as the method for the described aqueous dual-component polyester lacquer of the arbitrary claim of claim 1-5, and this method may further comprise the steps:
(1) first preparation of compositions method
A, synthetic described ethanol-soluble type water-borne acrylic resin: with ethanol, Virahol and benzoyl peroxide add in the reactor, stir, be warming up to 78～80 ℃ → acrylate monomer is mixed, in 10～30% adding reactors wherein, 80 ℃ were reacted 10～30 minutes, remaining mixture was splashed at 3 hours, splash into benzoyl peroxide solution simultaneously, insulation reaction 1～4 hour → be cooled to 40～60 ℃ then, add N, the N dimethylethanolamine, stir and formed resin in 10～30 minutes, wherein, material rate used when utilizing this method to prepare is: ethanol: Virahol: vinylformic acid: methyl methacrylate: butyl acrylate: N, N dimethylethanolamine: water: benzoyl peroxide=20～40: 5～15: 3～8: 10～20: 3～10: 1～5: 0～30: 0.5～3;
B, resin add is disperseed in the cylinder, stirring at low speed adds 1～8% film coalescence aid, 0.1～1% defoamer, 0.1～1% wetting agent, 1～3% mute powder, high speed dispersion 30 minutes then;
C, low speed disperse, and add 0.1～1% flow agent, solvent, 0.1～0.3% deodovization agent, and low speed disperseed 10 minutes, was packaged to be the first composition of described waterborne polyester paint;
In the first composition, add the second composition when (two) joining lacquer in proportion.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100929108A CN100358955C (en) | 2005-08-24 | 2005-08-24 | Aqueous double-component polyester paint and its preparation method |
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| CNB2005100929108A CN100358955C (en) | 2005-08-24 | 2005-08-24 | Aqueous double-component polyester paint and its preparation method |
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| CN1730578A true CN1730578A (en) | 2006-02-08 |
| CN100358955C CN100358955C (en) | 2008-01-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528881A (en) * | 2011-12-15 | 2012-07-04 | 宁波市鄞州意斯欧国际贸易有限公司 | Vegetable fiber tableware and preparation method thereof |
| CN102863879A (en) * | 2011-07-05 | 2013-01-09 | 佛山海特化工科技有限公司 | Waterborne three-component polyester paint and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU681935B2 (en) * | 1994-03-16 | 1997-09-11 | Nippon Paint Co., Ltd. | Waterborne polyester paint |
| JPH0827410A (en) * | 1994-07-18 | 1996-01-30 | Mitsui Toatsu Chem Inc | Acrylic resin composition for paint |
| US5646213A (en) * | 1996-06-28 | 1997-07-08 | Arco Chemical Technology, L.P. | High-solids and powder coatings from hydroxy-functional acrylic resins |
| CN1102624C (en) * | 1999-03-30 | 2003-03-05 | 刘新智 | Diluent for polyester paint |
| EP1305374A1 (en) * | 2000-07-31 | 2003-05-02 | PPG Industries Ohio, Inc. | Dual cure coating compositions having improved scratch resistance, coated substrates and methods related thereto |
-
2005
- 2005-08-24 CN CNB2005100929108A patent/CN100358955C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102863879A (en) * | 2011-07-05 | 2013-01-09 | 佛山海特化工科技有限公司 | Waterborne three-component polyester paint and preparation method thereof |
| CN102863879B (en) * | 2011-07-05 | 2015-06-24 | 佛山海特化工科技有限公司 | Waterborne three-component polyester paint and preparation method thereof |
| CN102528881A (en) * | 2011-12-15 | 2012-07-04 | 宁波市鄞州意斯欧国际贸易有限公司 | Vegetable fiber tableware and preparation method thereof |
| CN102528881B (en) * | 2011-12-15 | 2015-01-07 | 宁波意斯欧国际贸易有限公司 | Vegetable fiber tableware and preparation method thereof |
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Granted publication date: 20080102 Termination date: 20120824 |