CN105062327A - Corrosion-resisting thermosetting powder coating - Google Patents
Corrosion-resisting thermosetting powder coating Download PDFInfo
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Abstract
The invention discloses a corrosion-resisting thermosetting powder coating which comprises the raw materials: epoxy acrylate resin, chloroethylene, terminal carboxyl polyester resin, isocyanate, dimethylamino-ethyl methacrylate, hexafluorobutyl methacrylate, 2-hydroxy-4-n-octyloxybenzophenone, tetrabutylammonium-bis(methyl-o-benzenedithio) complex copper, tetradecanedioic acid, adipic acid, calcium stearate, lanthanum stearate, tetrapod-shaped zno whiskers, nano zinc oxide, carbon blakc, organically modified montmorillonite, a corrosion inhibitor, a defoamer, a leveling agent and a degassing agent. The corrosion-resisting thermosetting powder coating disclosed by the invention is good in storage stability, is excellent in coating corrosion resistance, water resistance and weather resistance if being cured, and is high in mechanical property.
Description
Technical field
The present invention relates to technical field of coatings, particularly relate to a kind of corrosion-resistant thermosetting powder coating(s).
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 powder coating 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 corrosion-resistant thermosetting powder coating(s), its stability in storage is good, and after solidification, film rotproofness, water tolerance and weather resistance are excellent, and mechanical property is high.
The corrosion-resistant thermosetting powder coating(s) of one that the present invention proposes, its raw material comprises following component by weight: epoxy acrylic resin 50-80 part, vinylchlorid 20-35 part, terminal carboxyl polyester resin 8-20 part, isocyanic ester 1-5 part, dimethylaminoethyl methacrylate 3-20 part, Hexafluorobutyl mathacrylate 5-20 part, Octabenzone 1-4 part, TBuA-two [the adjacent diphenyl disulfide of methyl] network copper 1-2.5 part, DC14 2-5 part, hexanodioic acid 0.5-3 part, calcium stearate 1-5 part, Lanthanum Stearate 3-5 part, four acicular type zinc oxide crystal whisker 10-25 part, nano zine oxide 2-10 part, carbon black 1-8 part, organic modification montmonrillonite 4-10 part, inhibiter 3-12 part, defoamer 0.1-0.5 part, flow agent 0.1-0.8 part, air release agent 0.2-0.8 part.
In a particular embodiment, the corrosion-resistant thermosetting powder coating(s) of one that the present invention proposes, in its raw material, the weight part of epoxy acrylic resin can be 50,52,53,54,56,58,59,61,64,68,72,75,78,78.6,79,79.3,80 parts; The weight part of vinylchlorid can be 20,23,25,28,29,29.3,31,32,34,34.5,35 parts; The weight part of terminal carboxyl polyester resin can be 8,9,10,12,15,16,18,19,19.3,20 parts; The weight part of isocyanic ester can be 1,1.2,1.8,2,2.3,2.8,3,3.4,3.8,4,4.5,5 part; The weight part of dimethylaminoethyl methacrylate can be 3,4,5,6,6.3,7,8,8.6,9,9.3,10,12,13,15,16,16.6,18,19,19.3,20 parts; The weight part of Hexafluorobutyl mathacrylate can be 5,6,7,8,8.5,9,9.3,10,10.3,12,15,16,18,18.6,19,19.3,20 parts; The weight part of Octabenzone can be 1,1.2,1.8,2,2.3,2.8,3,3.4,3.8,4 part; The weight part of TBuA-two [the adjacent diphenyl disulfide of methyl] network copper can be 1,1.2,1.8,2,2.3,2.35,2.4,2.46,2.5 part; The weight part of DC14 can be 2,2.3,2.8,3,3.2,3.4,4,4.5,4.8,5 parts; The weight part of hexanodioic acid can be 0.5,0.8,0.95,1,1.2,1.5,2,2.3,2.8,3 part; The weight part of calcium stearate can be 1,1.2,1.8,2,2.3,2.8,3,3.4,3.8,4,4.6,5 part; The weight part of Lanthanum Stearate can be 3,3.2,3.8,4,4.5,4.85,5 parts; The weight part of four acicular type zinc oxide crystal whisker can be 10,12,13,15,16,18,18.9,19,21,23,23.4,24,24.6,25 parts; The weight part of nano zine oxide can be 2,3,4,5,5.6,6,6.3,7,8,8.3,9,9.4,10 parts; The weight part of carbon black can be 1,1.2,1.8,2,2.3,2.8,3,3.4,3.48,4,4.6,5,5.3,6,6.3,7,7.8,8 part; The weight part of organic modification montmonrillonite can be 4,5,6,6.3,7,7.5,8,8.6,9,9.4,10 parts; The weight part of inhibiter can be 3,4,5,6,6.3,7,8,8.5,9,9.3,10,10.3,11,11.3,12 parts; The weight part of defoamer can be 0.1,0.15,0.2,0.23,0.3,0.34,0.4,0.46,0.5 part; The weight part of flow agent can be 0.1,0.15,0.2,0.26,0.3,0.34,0.4,0.5,0.6,0.65,0.7,0.75,0.8 part; The weight part of air release agent can be 0.2,0.25,0.3,0.35,0.4,0.46,0.5,0.53,0.6,0.64,0.7,0.75,0.8 part.
Preferably, its raw material comprises following component by weight: epoxy acrylic resin 58-72 part, vinylchlorid 25-32 part, terminal carboxyl polyester resin 10-17 part, isocyanic ester 3-4.5 part, dimethylaminoethyl methacrylate 8-16 part, Hexafluorobutyl mathacrylate 10-16 part, Octabenzone 2-3.4 part, TBuA-two [the adjacent diphenyl disulfide of methyl] network copper 1.5-2 part, DC14 3-4.5 part, hexanodioic acid 2-2.6 part, calcium stearate 3-4.5 part, Lanthanum Stearate 3.8-4.5 part, four acicular type zinc oxide crystal whisker 16-22 part, nano zine oxide 7-9 part, carbon black 6-8 part, organic modification montmonrillonite 7-9 part, inhibiter 7-10 part, defoamer 0.3-0.45 part, flow agent 0.5-0.7 part, air release agent 0.5-0.8 part.
Preferably, its raw material comprises following component by weight: epoxy acrylic resin 70 parts, 30 parts, vinylchlorid, terminal carboxyl polyester resin 15 parts, isocyanic ester 4 parts, dimethylaminoethyl methacrylate 12 parts, Hexafluorobutyl mathacrylate 13 parts, Octabenzone 3 parts, TBuA-two [the adjacent diphenyl disulfide of methyl] network copper 1.7 parts, DC14 4.2 parts, hexanodioic acid 2.3 parts, calcium stearate 4 parts, Lanthanum Stearate 4.2 parts, four acicular type zinc oxide crystal whisker 20 parts, nano zine oxide 7.8 parts, carbon black 6.7 parts, organic modification montmonrillonite 8.2 parts, inhibiter 9 parts, defoamer 0.4 part, flow agent 0.6 part, air release agent 0.6 part.
Preferably, the oxirane value of described epoxy acrylic resin is 0.2-0.35.
Preferably, the median size of described nano zine oxide is 5-25nm.
Preferably, the properties-correcting agent that described organic modification montmonrillonite uses is silane resin acceptor kh-550, one or more combination in silane coupling agent KH-560, Silane coupling reagent KH-570, silane coupling agent KH-580, silane coupling agent Si-69, stearic acid, Sodium dodecylbenzene sulfonate.
Preferably, described inhibiter is one or more the combination in 2 mercapto benzimidazole, methyl benzotriazazole, 2-mercaptobenzothiazole, chitosan, sodium lauryl sulphate.
Preferably, described inhibiter is the combination of 2 mercapto benzimidazole, methyl benzotriazazole, 2-mercaptobenzothiazole, chitosan, sodium lauryl sulphate; And the weight ratio of 2 mercapto benzimidazole, methyl benzotriazazole, 2-mercaptobenzothiazole, chitosan, sodium lauryl sulphate is 1-5:2-5:3-6:1-4:2-5.
Preferably, described inhibiter is the combination of 2 mercapto benzimidazole, methyl benzotriazazole, 2-mercaptobenzothiazole, chitosan, sodium lauryl sulphate; And the weight ratio of 2 mercapto benzimidazole, methyl benzotriazazole, 2-mercaptobenzothiazole, chitosan, sodium lauryl sulphate is 3:4:5:2:3.
Corrosion-resistant thermosetting powder coating(s) 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 cooperation with the addition of vinylchlorid, and both can be polymerized in the process of solidification, gives weathering resistance and the erosion resistance of film excellence, the terminal carboxyl polyester resin added, DC14 and hexanodioic acid can make the epoxy ring-opening crosslinking curing 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, and be coated with film density after solidification high, coating is fine and close, water tolerance and good corrosion resistance, weather resistance is excellent, the dimethylaminoethyl methacrylate added and Hexafluorobutyl mathacrylate can be cross-linked with the epoxy acrylic resin in system, vinylchlorid, by in dimethylaminoethyl methacrylate and Hexafluorobutyl mathacrylate introducing system, improve levelling property and the water tolerance of system, improve the toughness of coating and the sticking power with ground, four acicular type zinc oxide crystal whisker, nano zine oxide, carbon black, organic modification montmonrillonite cooperatively interacts, filler network can be formed in system, wherein, nano zine oxide, four acicular type zinc oxide crystal whisker and carbon black can promote intercalation and the dispersion of organic modification montmonrillonite, organically-modified illiteracy is taken off disperse in system more even, simultaneously, organic modification montmonrillonite is for nano zine oxide, four acicular type zinc oxide crystal whisker and carbon black have certain partition effect, both are collaborative, improve the reinforcing property of various filler, improve the mechanical property of coating, ageing resistance, thermostability, solvent resistance, water tolerance, winter hardiness, wear resistance and erosion resistance.
Embodiment
Below, by specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1
The corrosion-resistant thermosetting powder coating(s) of one that the present invention proposes, its raw material comprises following component by weight: epoxy acrylic resin 50 parts, 35 parts, vinylchlorid, terminal carboxyl polyester resin 8 parts, isocyanic ester 5 parts, dimethylaminoethyl methacrylate 3 parts, Hexafluorobutyl mathacrylate 20 parts, Octabenzone 1 part, TBuA-two [the adjacent diphenyl disulfide of methyl] network copper 2.5 parts, DC14 2 parts, hexanodioic acid 3 parts, calcium stearate 1 part, Lanthanum Stearate 5 parts, four acicular type zinc oxide crystal whisker 10 parts, nano zine oxide 10 parts, carbon black 1 part, organic modification montmonrillonite 10 parts, inhibiter 3 parts, defoamer 0.5 part, flow agent 0.1 part, air release agent 0.8 part, described inhibiter is the combination of 2 mercapto benzimidazole, methyl benzotriazazole, 2-mercaptobenzothiazole, chitosan, sodium lauryl sulphate, and the weight ratio of 2 mercapto benzimidazole, methyl benzotriazazole, 2-mercaptobenzothiazole, chitosan, sodium lauryl sulphate is 1:5:3:4:2.
Embodiment 2
The corrosion-resistant thermosetting powder coating(s) of one that the present invention proposes, its raw material comprises following component by weight: epoxy acrylic resin 80 parts, 20 parts, vinylchlorid, terminal carboxyl polyester resin 20 parts, isocyanic ester 1 part, dimethylaminoethyl methacrylate 20 parts, Hexafluorobutyl mathacrylate 5 parts, Octabenzone 4 parts, TBuA-two [the adjacent diphenyl disulfide of methyl] network copper 1 part, DC14 5 parts, hexanodioic acid 0.5 part, calcium stearate 5 parts, Lanthanum Stearate 3 parts, four acicular type zinc oxide crystal whisker 25 parts, nano zine oxide 2 parts, carbon black 8 parts, organic modification montmonrillonite 4 parts, inhibiter 12 parts, defoamer 0.1 part, flow agent 0.8 part, air release agent 0.2 part, wherein, described inhibiter is the combination of 2 mercapto benzimidazole, methyl benzotriazazole, 2-mercaptobenzothiazole, chitosan, sodium lauryl sulphate, and the weight ratio of 2 mercapto benzimidazole, methyl benzotriazazole, 2-mercaptobenzothiazole, chitosan, sodium lauryl sulphate is 3:4:5:2:3.
Embodiment 3
The corrosion-resistant thermosetting powder coating(s) of one that the present invention proposes, its raw material comprises following component by weight: epoxy acrylic resin 70 parts, 30 parts, vinylchlorid, terminal carboxyl polyester resin 15 parts, isocyanic ester 4 parts, dimethylaminoethyl methacrylate 12 parts, Hexafluorobutyl mathacrylate 13 parts, Octabenzone 3 parts, TBuA-two [the adjacent diphenyl disulfide of methyl] network copper 1.7 parts, DC14 4.2 parts, hexanodioic acid 2.3 parts, calcium stearate 4 parts, Lanthanum Stearate 4.2 parts, four acicular type zinc oxide crystal whisker 20 parts, nano zine oxide 7.8 parts, carbon black 6.7 parts, organic modification montmonrillonite 8.2 parts, inhibiter 9 parts, defoamer 0.4 part, flow agent 0.6 part, air release agent 0.6 part,
Wherein, the oxirane value of described epoxy acrylic resin is 0.3; The median size of described nano zine oxide is 5nm; The combination that the properties-correcting agent that described organic modification montmonrillonite uses is silane resin acceptor kh-550, silane coupling agent KH-560, Silane coupling reagent KH-570, silane coupling agent KH-580, silane coupling agent Si-69, stearic acid, Sodium dodecylbenzene sulfonate press any weight ratio; Described inhibiter is the combination of 2 mercapto benzimidazole, methyl benzotriazazole, 2-mercaptobenzothiazole, chitosan, sodium lauryl sulphate; And the weight ratio of 2 mercapto benzimidazole, methyl benzotriazazole, 2-mercaptobenzothiazole, chitosan, sodium lauryl sulphate is 5:2:6:1:5.
Embodiment 4
The corrosion-resistant thermosetting powder coating(s) of one that the present invention proposes, its raw material comprises following component by weight: epoxy acrylic resin 58 parts, 32 parts, vinylchlorid, terminal carboxyl polyester resin 10 parts, isocyanic ester 4.5 parts, dimethylaminoethyl methacrylate 8 parts, Hexafluorobutyl mathacrylate 16 parts, Octabenzone 2 parts, TBuA-two [the adjacent diphenyl disulfide of methyl] network copper 2 parts, DC14 3 parts, hexanodioic acid 2.6 parts, calcium stearate 3 parts, Lanthanum Stearate 4.5 parts, four acicular type zinc oxide crystal whisker 16 parts, nano zine oxide 9 parts, carbon black 6 parts, organic modification montmonrillonite 9 parts, methyl benzotriazazole 3 parts, 2-mercaptobenzothiazole 4 parts, defoamer 0.45 part, flow agent 0.5 part, air release agent 0.8 part,
Wherein, the oxirane value of described epoxy acrylic resin is 0.35; The median size of described nano zine oxide is 25nm; The combination that the properties-correcting agent that described organic modification montmonrillonite uses is silane coupling agent KH-560, Silane coupling reagent KH-570, silane coupling agent KH-580 are 1:3:2 by weight.
Embodiment 5
The corrosion-resistant thermosetting powder coating(s) of one that the present invention proposes, its raw material comprises following component by weight: epoxy acrylic resin 72 parts, 25 parts, vinylchlorid, terminal carboxyl polyester resin 17 parts, isocyanic ester 3 parts, dimethylaminoethyl methacrylate 16 parts, Hexafluorobutyl mathacrylate 10 parts, Octabenzone 3.4 parts, TBuA-two [the adjacent diphenyl disulfide of methyl] network copper 1.5 parts, DC14 4.5 parts, hexanodioic acid 2 parts, calcium stearate 4.5 parts, Lanthanum Stearate 3.8 parts, four acicular type zinc oxide crystal whisker 22 parts, nano zine oxide 7 parts, carbon black 8 parts, organic modification montmonrillonite 7 parts, 2 mercapto benzimidazole 10 parts, defoamer 0.3 part, flow agent 0.7 part, air release agent 0.5 part,
Wherein, the oxirane value of described epoxy acrylic resin is 0.2; The median size of described nano zine oxide is 20nm; The properties-correcting agent that described organic modification montmonrillonite uses is silane resin acceptor kh-550.
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 (9)
1. a corrosion-resistant thermosetting powder coating(s), it is characterized in that, its raw material comprises following component by weight: epoxy acrylic resin 50-80 part, vinylchlorid 20-35 part, terminal carboxyl polyester resin 8-20 part, isocyanic ester 1-5 part, dimethylaminoethyl methacrylate 3-20 part, Hexafluorobutyl mathacrylate 5-20 part, Octabenzone 1-4 part, TBuA-two [the adjacent diphenyl disulfide of methyl] network copper 1-2.5 part, DC14 2-5 part, hexanodioic acid 0.5-3 part, calcium stearate 1-5 part, Lanthanum Stearate 3-5 part, four acicular type zinc oxide crystal whisker 10-25 part, nano zine oxide 2-10 part, carbon black 1-8 part, organic modification montmonrillonite 4-10 part, inhibiter 3-12 part, defoamer 0.1-0.5 part, flow agent 0.1-0.8 part, air release agent 0.2-0.8 part.
2. corrosion-resistant thermosetting powder coating(s) according to claim 1, it is characterized in that, its raw material comprises following component by weight: epoxy acrylic resin 58-72 part, vinylchlorid 25-32 part, terminal carboxyl polyester resin 10-17 part, isocyanic ester 3-4.5 part, dimethylaminoethyl methacrylate 8-16 part, Hexafluorobutyl mathacrylate 10-16 part, Octabenzone 2-3.4 part, TBuA-two [the adjacent diphenyl disulfide of methyl] network copper 1.5-2 part, DC14 3-4.5 part, hexanodioic acid 2-2.6 part, calcium stearate 3-4.5 part, Lanthanum Stearate 3.8-4.5 part, four acicular type zinc oxide crystal whisker 16-22 part, nano zine oxide 7-9 part, carbon black 6-8 part, organic modification montmonrillonite 7-9 part, inhibiter 7-10 part, defoamer 0.3-0.45 part, flow agent 0.5-0.7 part, air release agent 0.5-0.8 part.
3. corrosion-resistant thermosetting powder coating(s) according to claim 1 or 2, it is characterized in that, its raw material comprises following component by weight: epoxy acrylic resin 70 parts, 30 parts, vinylchlorid, terminal carboxyl polyester resin 15 parts, isocyanic ester 4 parts, dimethylaminoethyl methacrylate 12 parts, Hexafluorobutyl mathacrylate 13 parts, Octabenzone 3 parts, TBuA-two [the adjacent diphenyl disulfide of methyl] network copper 1.7 parts, DC14 4.2 parts, hexanodioic acid 2.3 parts, calcium stearate 4 parts, Lanthanum Stearate 4.2 parts, four acicular type zinc oxide crystal whisker 20 parts, nano zine oxide 7.8 parts, carbon black 6.7 parts, organic modification montmonrillonite 8.2 parts, inhibiter 9 parts, defoamer 0.4 part, flow agent 0.6 part, air release agent 0.6 part.
4. corrosion-resistant thermosetting powder coating(s) according to any one of claim 1-3, is characterized in that, the oxirane value of described epoxy acrylic resin is 0.2-0.35.
5. corrosion-resistant thermosetting powder coating(s) according to any one of claim 1-4, is characterized in that, the median size of described nano zine oxide is 5-25nm.
6. corrosion-resistant thermosetting powder coating(s) according to any one of claim 1-5, it is characterized in that, the properties-correcting agent that described organic modification montmonrillonite uses is silane resin acceptor kh-550, one or more combination in silane coupling agent KH-560, Silane coupling reagent KH-570, silane coupling agent KH-580, silane coupling agent Si-69, stearic acid, Sodium dodecylbenzene sulfonate.
7. corrosion-resistant thermosetting powder coating(s) according to any one of claim 1-6, 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.
8. corrosion-resistant thermosetting powder coating(s) according to any one of claim 1-7, is characterized in that, described inhibiter is the combination of 2 mercapto benzimidazole, methyl benzotriazazole, 2-mercaptobenzothiazole, chitosan, sodium lauryl sulphate; And the weight ratio of 2 mercapto benzimidazole, methyl benzotriazazole, 2-mercaptobenzothiazole, chitosan, sodium lauryl sulphate is 1-5:2-5:3-6:1-4:2-5.
9. corrosion-resistant thermosetting powder coating(s) according to any one of claim 1-8, is characterized in that, described inhibiter is the combination of 2 mercapto benzimidazole, methyl benzotriazazole, 2-mercaptobenzothiazole, chitosan, sodium lauryl sulphate; And the weight ratio of 2 mercapto benzimidazole, methyl benzotriazazole, 2-mercaptobenzothiazole, chitosan, sodium lauryl sulphate is 3:4:5:2:3.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107378405A (en) * | 2017-08-15 | 2017-11-24 | 合肥明英富海生物科技有限公司 | A kind of manufacturing process of the revolving filter stirring vane of starch milk wash mill |
| CN113598116A (en) * | 2021-08-20 | 2021-11-05 | 安徽鹏翔生态农业集团有限公司 | High-efficient pond of breeding of sturgeon |
| CN115418156A (en) * | 2022-09-21 | 2022-12-02 | 哈尔滨工程大学 | Benzothiazole modified polyaspartate polyurea antifouling paint and preparation method and application thereof |
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2015
- 2015-07-22 CN CN201510438618.0A patent/CN105062327A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107378405A (en) * | 2017-08-15 | 2017-11-24 | 合肥明英富海生物科技有限公司 | A kind of manufacturing process of the revolving filter stirring vane of starch milk wash mill |
| CN113598116A (en) * | 2021-08-20 | 2021-11-05 | 安徽鹏翔生态农业集团有限公司 | High-efficient pond of breeding of sturgeon |
| CN113598116B (en) * | 2021-08-20 | 2023-05-26 | 安徽鹏翔生态农业集团有限公司 | High-efficient pond of breeding of sturgeon |
| CN115418156A (en) * | 2022-09-21 | 2022-12-02 | 哈尔滨工程大学 | Benzothiazole modified polyaspartate polyurea antifouling paint and preparation method and application thereof |
| CN115418156B (en) * | 2022-09-21 | 2023-06-20 | 哈尔滨工程大学 | Benzothiazole modified polyaspartate polyurea antifouling paint and preparation method and application thereof |
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Application publication date: 20151118 |