CN105062326A - High-performance thermosetting powder paint - Google Patents
High-performance thermosetting powder paint Download PDFInfo
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- CN105062326A CN105062326A CN201510438504.6A CN201510438504A CN105062326A CN 105062326 A CN105062326 A CN 105062326A CN 201510438504 A CN201510438504 A CN 201510438504A CN 105062326 A CN105062326 A CN 105062326A
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Abstract
The invention discloses a high-performance thermosetting powder paint comprising the following components, by weight: 20-45 parts of epoxy acrylic resin, 15-30 parts of chlorosulfonated polyethylene, 8-20 parts of terminal carboxyl polyester resin, 1-5 parts of isocyanate, 5-12 parts of dimethylaminoethyl methacrylate, 5-15 parts of hexafluoro-butyl methacrylate, 2-5 parts of styrene, 1-5 parts of diphenyl ethanone, 1-2.5 parts of tetrabutylammonium-bis[methyl phthalic disulfide]copper, 2-5 parts of dodecanedioic acid, 1-2.5 parts of heneicosenedioic acid, 20-35 part of a composite filler, and 1-5 parts of an auxiliary agent. The high-performance thermosetting powder paint provided by the invention has good storage stability. After curing, a coating has excellent corrosion resistance, excellent water resistance, excellent weather resistance, good adhesion with a substrate, and good decorativeness. During use, the paint is prevented from chalking and cracking, and has good durability.
Description
Technical field
The present invention relates to technical field of coatings, particularly relate to a kind of high-performance thermosetting powder coating.
Background technology
Powder coating, with regard to its filmogen and curing mechanism, can be divided into thermoplasticity and the large class of thermoset two.Thermoplastic powder coating is filmogen with thermoplastic resin, resin melting flowing when being elevated to certain temperature, and powder film process is without crosslinking reaction, and chemical constitution does not change; And thermosetting powder coating(s) take thermoset synthetic resin as filmogen, namely some is compared with low polymerization degree containing the resin of active function groups, and when being elevated to certain temperature, resin melting flows, and with solidifying agent generation crosslinking curing.
The general molecular weight of thermosetting powder coating(s) resin used is lower, good levelling property is had during film forming, energy secure adhesion is in workpiece surface, there is ornamental and erosion resistance preferably, and form tridimensional network after powder thermosetting system crosslinking curing, there is excellent performance, therefore, thermosetting powder coating(s) is the main body of powder coating, occupies the main market share.
At present, thermosetting powder coating(s) is of a great variety, mainly contains epoxy powder coating, the large class of epoxy/polyester type powder coating, polyester type powder paint, polyurethane-type powder coating and polyacrylate powder coating five.Along with the development of society, its performance of existing thermosetting powder coating(s) can not meet the requirement of use, and such as, erosion resistance is not good enough, and weathering resistance is bad, poor durability etc., needs to carry out modification.
Summary of the invention
Based on the technical problem that background technology exists, the present invention proposes a kind of high-performance thermosetting powder coating, its stability in storage is good, after solidification, film rotproofness, water tolerance and weather resistance are excellent, with the strong adhesion of ground,, in the process used, not easily there is efflorescence, cracking phenomena, good endurance in good decorative property.
A kind of high-performance thermosetting powder coating that the present invention proposes, its raw material comprises following component by weight: epoxy acrylic resin 20-45 part, chlorosulfonated polyethylene 15-30 part, terminal carboxyl polyester resin 8-20 part, isocyanic ester 1-5 part, dimethylaminoethyl methacrylate 5-12 part, Hexafluorobutyl mathacrylate 5-15 part, vinylbenzene 2-5 part, diphenylethan 1-5 part, TBuA-two [the adjacent diphenyl disulfide of methyl] network copper 1-2.5 part, SL-AH 2-5 part, two DC11 1-2.5 parts, compounded mix 20-35 part, auxiliary agent 1-5 part.
Preferably, its raw material comprises following component by weight: epoxy acrylic resin 35-38 part, chlorosulfonated polyethylene 20-26 part, terminal carboxyl polyester resin 10-15 part, isocyanic ester 3-3.5 part, dimethylaminoethyl methacrylate 7-10 part, Hexafluorobutyl mathacrylate 10-12 part, vinylbenzene 3-4.5 part, diphenylethan 3-3.4 part, TBuA-two [the adjacent diphenyl disulfide of methyl] network copper 1.5-2 part, SL-AH 3.4-4 part, two DC11 1.8-2.2 parts, compounded mix 28-32 part, auxiliary agent 3-4.5 part.
Preferably, its raw material comprises following component by weight: epoxy acrylic resin 37 parts, chlorosulfonated polyethylene 23 parts, terminal carboxyl polyester resin 14 parts, isocyanic ester 3.2 parts, dimethylaminoethyl methacrylate 8 parts, Hexafluorobutyl mathacrylate 11 parts, vinylbenzene 3.8 parts, diphenylethan 3.2 parts, TBuA-two [the adjacent diphenyl disulfide of methyl] network copper 1.7 parts, SL-AH 3.8 parts, two DC11 2 parts, compounded mix 30 parts, auxiliary agent 3.8 parts.
Preferably, the oxirane value of described epoxy acrylic resin is 0.15-0.3.
Preferably, described compounded mix is prepared according to following technique: add in Banbury mixer by 5-15 part chlorosulfonated polyethylene by weight, mixing 5-10min after being warming up to 80-100 DEG C, then add 2-5 part impingement black, 5-15 part four acicular type zinc oxide crystal whisker, 2-10 part nano zine oxide, the polynite of 5-20 part, 3-10 part nano barite, 2-15 part nanometer silicon carbide, 3-5 part N-phenyl-3-TSL 8330, the mixing 5-20min of 2-7 part Varion CDG-K, after binder removal, filtration is extruded then cooling and is obtained compounded mix in an extruder, in compounded mix, have selected chlorosulfonated polyethylene, N-phenyl-3-TSL 8330 and Varion CDG-K and mix with multiple filler, wherein the active group of filling surface can with-the SO in chlorosulfonated polyethylene
3cl and N-phenyl-3-TSL 8330 and Varion CDG-K react, thus mixed with filler by physical adsorption and chemical bonding two kinds effect, improve interface bond strength, join in system, improve the consistency of compounded mix and other raw materials, improve strengthening action, wherein, four acicular type zinc oxide crystal whisker, nano zine oxide, nano barite and nanometer silicon carbide coordinate, filler network is defined in system, on the one hand, there is pinning effect and nano effect simultaneously, improve the intensity of coating, erosion resistance, water tolerance and weathering resistance, on the other hand, impingement black, nano zine oxide, nano barite, nanometer silicon carbide can promote intercalation and the dispersion of polynite after coordinating, polynite is disperseed in system more even, polynite is simultaneously to impingement black, nano zine oxide, nano barite, nanometer silicon carbide has certain partition effect, after synergy, improve reinforcing property, improve the mechanical property of coating, ageing resistance, thermostability, solvent resistance, water tolerance, winter hardiness, wear resistance and erosion resistance.
Preferably, described compounded mix is prepared according to following technique: add in Banbury mixer by 12 parts of chlorosulfonated polyethylenes by weight, mixing 7min after being warming up to 90 DEG C, then add 2.5 parts of impingement blacks, 10 parts of four acicular type zinc oxide crystal whiskers, 8.5 parts of nano zine oxides, 10 parts of polynites, 7 parts of nano barites, 11 parts of nanometer silicon carbides, 3.8 parts of N-phenyl-3-TSL 8330,5.3 parts of mixing 15min of Varion CDG-K, after binder removal, filtration is extruded then cooling and is obtained compounded mix in an extruder.
Preferably, described auxiliary agent is one or more the combination in adhesion promoter, fire retardant, sustained release dosage, flow agent, air release agent, defoamer.
Preferably, described adhesion promoter is one or more the combination in imidazoles, glyoxal ethyline, 2-phenylimidazole.
Preferably, described inhibiter is one or more the combination in 2 mercapto benzimidazole, methyl benzotriazazole, 2-mercaptobenzothiazole, chitosan, sodium lauryl sulphate.
Preferably, described fire retardant is one or more the combination in zinc borate, magnesium hydroxide, red phosphorus; Each flame retardant performance is worked in coordination with, and coordinates with the chlorosulfonated polyethylene in system, gives the flame retardant resistance that coating is certain.
High-performance thermosetting powder coating of the present invention can powder coating preparation technology conveniently be prepared from.
In the present invention, have selected epoxy acrylic resin is filmogen, and coordinates interpolation chlorosulfonated polyethylene, and both work in coordination with at performance, can give the weathering resistance of film excellence, erosion resistance and certain flame retardant resistance, improve the shock resistance of epoxy acrylic resin simultaneously; With the addition of terminal carboxyl polyester resin, SL-AH and two DC11s, three coordinates the epoxy ring-opening crosslinking curing that can make in epoxy acrylic resin, isocyanic ester auxiliary under, improve the curing degree of coating, improve the curing speed of coating, the coating obtained has excellent stability in storage and scoring resistance, film density is coated with high after solidification, coating is fine and close, water tolerance and good corrosion resistance, and weather resistance is excellent; The dimethylaminoethyl methacrylate added, Hexafluorobutyl mathacrylate, vinylbenzene can be cross-linked with the epoxy acrylic resin in system, by in three's introducing system, improve levelling property and the water tolerance of system, improve the toughness of coating and the sticking power with ground; Diphenylethan joins in system, can cause the solidification of epoxy acrylic resin, further improves the curing performance of coating.
Embodiment
Below, by specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1
A kind of high-performance thermosetting powder coating that the present invention proposes, its raw material comprises following component by weight: epoxy acrylic resin 20 parts, chlorosulfonated polyethylene 30 parts, terminal carboxyl polyester resin 8 parts, isocyanic ester 5 parts, dimethylaminoethyl methacrylate 5 parts, Hexafluorobutyl mathacrylate 15 parts, vinylbenzene 2 parts, diphenylethan 5 parts, TBuA-two [the adjacent diphenyl disulfide of methyl] network copper 1 part, SL-AH 5 parts, two DC11 1 part, compounded mix 35 parts, 2 mercapto benzimidazole 1 part.
Embodiment 2
A kind of high-performance thermosetting powder coating that the present invention proposes, its raw material comprises following component by weight: epoxy acrylic resin 35 parts, chlorosulfonated polyethylene 26 parts, terminal carboxyl polyester resin 10 parts, isocyanic ester 3.5 parts, dimethylaminoethyl methacrylate 7 parts, Hexafluorobutyl mathacrylate 12 parts, vinylbenzene 3 parts, diphenylethan 3.4 parts, TBuA-two [the adjacent diphenyl disulfide of methyl] network copper 1.5 parts, SL-AH 4 parts, two DC11 1.8 parts, compounded mix 32 parts, glyoxal ethyline 3 parts; Wherein, the oxirane value of described epoxy acrylic resin is 0.15.
Embodiment 3
A kind of high-performance thermosetting powder coating that the present invention proposes, its raw material comprises following component by weight: epoxy acrylic resin 45 parts, chlorosulfonated polyethylene 15 parts, terminal carboxyl polyester resin 20 parts, isocyanic ester 1 part, dimethylaminoethyl methacrylate 12 parts, Hexafluorobutyl mathacrylate 5 parts, vinylbenzene 5 parts, diphenylethan 1 part, TBuA-two [the adjacent diphenyl disulfide of methyl] network copper 2.5 parts, SL-AH 2 parts, two DC11s 2.5 parts, compounded mix 20 parts, glyoxal ethyline 2 parts, 2-phenylimidazole 1 part, flow agent 1 part, air release agent 0.3 part, defoamer 0.7 part,
Wherein, the oxirane value of described epoxy acrylic resin is 0.3; Described compounded mix is prepared according to following technique: add in Banbury mixer by 15 parts of chlorosulfonated polyethylenes by weight, mixing 10min after being warming up to 80 DEG C, then add 2 parts of impingement blacks, 15 parts of four acicular type zinc oxide crystal whiskers, 2 parts of nano zine oxides, 20 parts of polynites, 3 parts of nano barites, 15 parts of nanometer silicon carbides, 3 parts of N-phenyl-3-TSL 8330,7 parts of mixing 5min of Varion CDG-K, after binder removal, filtration is extruded then cooling and is obtained compounded mix in an extruder.
Embodiment 4
A kind of high-performance thermosetting powder coating that the present invention proposes, its raw material comprises following component by weight: epoxy acrylic resin 38 parts, chlorosulfonated polyethylene 20 parts, terminal carboxyl polyester resin 15 parts, isocyanic ester 3 parts, dimethylaminoethyl methacrylate 10 parts, Hexafluorobutyl mathacrylate 10 parts, vinylbenzene 4.5 parts, diphenylethan 3 parts, TBuA-two [the adjacent diphenyl disulfide of methyl] network copper 2 parts, SL-AH 3.4 parts, two DC11s 2.2 parts, compounded mix 28 parts, imidazoles 1 part, glyoxal ethyline 0.5 part, 2-phenylimidazole 0.8 part, zinc borate 0.7 part, magnesium hydroxide 1.5 parts, wherein, the oxirane value of described epoxy acrylic resin is 0.22, described compounded mix is prepared according to following technique: add in Banbury mixer by 5 parts of chlorosulfonated polyethylenes by weight, mixing 5min after being warming up to 100 DEG C, then add 5 parts of impingement blacks, 5 parts of four acicular type zinc oxide crystal whiskers, 10 parts of nano zine oxides, 5 parts of polynites, 10 parts of nano barites, 2 parts of nanometer silicon carbides, 5 parts of N-phenyl-3-TSL 8330,2 parts of mixing 20min of Varion CDG-K, after binder removal, filtration is extruded then cooling and is obtained compounded mix in an extruder.
Embodiment 5
A kind of high-performance thermosetting powder coating that the present invention proposes, its raw material comprises following component by weight: epoxy acrylic resin 37 parts, chlorosulfonated polyethylene 23 parts, terminal carboxyl polyester resin 14 parts, isocyanic ester 3.2 parts, dimethylaminoethyl methacrylate 8 parts, Hexafluorobutyl mathacrylate 11 parts, vinylbenzene 3.8 parts, diphenylethan 3.2 parts, TBuA-two [the adjacent diphenyl disulfide of methyl] network copper 1.7 parts, SL-AH 3.8 parts, two DC11s 2 parts, compounded mix 30 parts, imidazoles 0.8 part, zinc borate 0.2 part, magnesium hydroxide 0.1 part, 0.2 part, red phosphorus, 2 mercapto benzimidazole 0.2 part, methyl benzotriazazole 0.3 part, 2-mercaptobenzothiazole 0.1 part, chitosan 0.2 part, sodium lauryl sulphate 0.2 part, flow agent 0.5 part, air release agent 0.3 part, defoamer 0.7 part,
Wherein, described compounded mix is prepared according to following technique: add in Banbury mixer by 12 parts of chlorosulfonated polyethylenes by weight, mixing 7min after being warming up to 90 DEG C, then add 2.5 parts of impingement blacks, 10 parts of four acicular type zinc oxide crystal whiskers, 8.5 parts of nano zine oxides, 10 parts of polynites, 7 parts of nano barites, 11 parts of nanometer silicon carbides, 3.8 parts of N-phenyl-3-TSL 8330,5.3 parts of mixing 15min of Varion CDG-K, after binder removal, filtration is extruded then cooling and is obtained compounded mix in an extruder;
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (10)
1. a high-performance thermosetting powder coating, it is characterized in that, its raw material comprises following component by weight: epoxy acrylic resin 20-45 part, chlorosulfonated polyethylene 15-30 part, terminal carboxyl polyester resin 8-20 part, isocyanic ester 1-5 part, dimethylaminoethyl methacrylate 5-12 part, Hexafluorobutyl mathacrylate 5-15 part, vinylbenzene 2-5 part, diphenylethan 1-5 part, TBuA-two [the adjacent diphenyl disulfide of methyl] network copper 1-2.5 part, SL-AH 2-5 part, two DC11 1-2.5 parts, compounded mix 20-35 part, auxiliary agent 1-5 part.
2. high-performance thermosetting powder coating according to claim 1, it is characterized in that, its raw material comprises following component by weight: epoxy acrylic resin 35-38 part, chlorosulfonated polyethylene 20-26 part, terminal carboxyl polyester resin 10-15 part, isocyanic ester 3-3.5 part, dimethylaminoethyl methacrylate 7-10 part, Hexafluorobutyl mathacrylate 10-12 part, vinylbenzene 3-4.5 part, diphenylethan 3-3.4 part, TBuA-two [the adjacent diphenyl disulfide of methyl] network copper 1.5-2 part, SL-AH 3.4-4 part, two DC11 1.8-2.2 parts, compounded mix 28-32 part, auxiliary agent 3-4.5 part.
3. high-performance thermosetting powder coating according to claim 1 or 2, it is characterized in that, its raw material comprises following component by weight: epoxy acrylic resin 37 parts, chlorosulfonated polyethylene 23 parts, terminal carboxyl polyester resin 14 parts, isocyanic ester 3.2 parts, dimethylaminoethyl methacrylate 8 parts, Hexafluorobutyl mathacrylate 11 parts, vinylbenzene 3.8 parts, diphenylethan 3.2 parts, TBuA-two [the adjacent diphenyl disulfide of methyl] network copper 1.7 parts, SL-AH 3.8 parts, two DC11 2 parts, compounded mix 30 parts, auxiliary agent 3.8 parts.
4. high-performance thermosetting powder coating according to any one of claim 1-3, is characterized in that, the oxirane value of described epoxy acrylic resin is 0.15-0.3.
5. high-performance thermosetting powder coating according to any one of claim 1-4, it is characterized in that, described compounded mix is prepared according to following technique: add in Banbury mixer by 5-15 part chlorosulfonated polyethylene by weight, plasticate after being warming up to 80-100 DEG C 5-10min, then 2-5 part impingement black is added, 5-15 part four acicular type zinc oxide crystal whisker, 2-10 part nano zine oxide, the polynite of 5-20 part, 3-10 part nano barite, 2-15 part nanometer silicon carbide, 3-5 part N-phenyl-3-TSL 8330, the mixing 5-20min of 2-7 part Varion CDG-K, filter in an extruder after binder removal to extrude then to cool and obtain compounded mix.
6. high-performance thermosetting powder coating according to any one of claim 1-5, it is characterized in that, described compounded mix is prepared according to following technique: add in Banbury mixer by 12 parts of chlorosulfonated polyethylenes by weight, mixing 7min after being warming up to 90 DEG C, then 2.5 parts of impingement blacks are added, 10 parts of four acicular type zinc oxide crystal whiskers, 8.5 parts of nano zine oxides, 10 parts of polynites, 7 parts of nano barites, 11 parts of nanometer silicon carbides, 3.8 parts of N-phenyl-3-TSL 8330, 5.3 parts of mixing 15min of Varion CDG-K, filter in an extruder after binder removal to extrude then to cool and obtain compounded mix.
7. high-performance thermosetting powder coating according to any one of claim 1-6, is characterized in that, described auxiliary agent is one or more the combination in adhesion promoter, fire retardant, sustained release dosage, flow agent, air release agent, defoamer.
8. high-performance thermosetting powder coating according to claim 7, it is characterized in that, described adhesion promoter is one or more the combination in imidazoles, glyoxal ethyline, 2-phenylimidazole.
9. high-performance thermosetting powder coating according to claim 7 or 8, it is characterized in that, described inhibiter is one or more the combination in 2 mercapto benzimidazole, methyl benzotriazazole, 2-mercaptobenzothiazole, chitosan, sodium lauryl sulphate.
10. high-performance thermosetting powder coating according to any one of claim 7-9, is characterized in that, described fire retardant is one or more the combination in zinc borate, magnesium hydroxide, red phosphorus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510438504.6A CN105062326A (en) | 2015-07-22 | 2015-07-22 | High-performance thermosetting powder paint |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510438504.6A CN105062326A (en) | 2015-07-22 | 2015-07-22 | High-performance thermosetting powder paint |
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| CN105062326A true CN105062326A (en) | 2015-11-18 |
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| CN201510438504.6A Pending CN105062326A (en) | 2015-07-22 | 2015-07-22 | High-performance thermosetting powder paint |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111138956A (en) * | 2019-12-23 | 2020-05-12 | 江阴市玲珑高分子材料有限公司 | Thermosetting powder electromagnetic shielding coating |
| CN113817389A (en) * | 2021-09-14 | 2021-12-21 | 安徽华辉塑业科技股份有限公司 | Flame-retardant polyester coating and preparation method thereof |
-
2015
- 2015-07-22 CN CN201510438504.6A patent/CN105062326A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111138956A (en) * | 2019-12-23 | 2020-05-12 | 江阴市玲珑高分子材料有限公司 | Thermosetting powder electromagnetic shielding coating |
| CN113817389A (en) * | 2021-09-14 | 2021-12-21 | 安徽华辉塑业科技股份有限公司 | Flame-retardant polyester coating and preparation method thereof |
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