CN107541135A - A kind of preparation method of powdery paints coating and products thereof and application - Google Patents
A kind of preparation method of powdery paints coating and products thereof and application Download PDFInfo
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- CN107541135A CN107541135A CN201710641790.5A CN201710641790A CN107541135A CN 107541135 A CN107541135 A CN 107541135A CN 201710641790 A CN201710641790 A CN 201710641790A CN 107541135 A CN107541135 A CN 107541135A
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Abstract
The invention discloses a kind of preparation method of powdery paints coating and products thereof and application, first, polyester powder and functional stuffing component are ground into serum using low temperature wet method grinding technics, then it is compound that zinc oxide precipitate is carried out in serum, add powder coating additive and continue wet grinding, finally give grain diameter D in serum90=2 μm of fermented milk powder coating.It is may be uniformly dispersed in by this technique functional stuffing component in polyester serum system, recycle ordinary liquid coating process to spray to fermented milk powder coating on workpiece, preheating, shunk, after baking, obtain curing powder coating.While expected antibacterial, mould proof and anti-corrosion function is realized, coating layer thickness can control below 30 μm this coating, the bright and clean exquisiteness of coating.
Description
Technical field
The invention belongs to technical field of composite materials, and in particular to a kind of powdery paints coating and preparation method thereof.
Background technology
Today's society is with the change of economic growth idea, plus a series of environment such as acid rain, ozone hole and greenhouse effects
Harm, the mankind are further recognized by the urgency and importance of environmental protection, save the energy, environmental protection turns into the world today
Development of all countries economy valued two principal themes again.Various countries are directed to developing energy-conserving product, while strict environmental regulation one after another.Generation
Boundary's coatings industry complies with requirements of the times, it is proposed that resource-saving, saves the energy, the developing goal of low stain, major paint company is not stinted
Great cost is paid, competitively exploitation energy-conservation, low-contamination type coating, to keep, consolidate and develop from following Coating Market
Strong competitive position.Powdery paints be exactly save, one kind particularly important in low-contamination type coating.
In order to improve the dicoration of powdery paints, realize on automobile finish coat and otherwise application, it is necessary to prepare
The film of 20 ~ 30 μ m-thicks;From reducing production cost, it was also proposed that reduce the requirement of thickness.Traditional functional powder applies
Expect that thickness all more than 50 μm, only changes preparation technology, this target is realized with serum type powdery paints.
The content of the invention
The invention discloses a kind of preparation method of powdery paints coating, using low temperature wet method grinding technics by polyester powder
Serum is ground into functional stuffing component, then the precipitation of progress zinc oxide is compound in serum, adds powder coating additive
And continue wet grinding, finally obtain fermented milk powder coating and spraying application.Comprise the following steps that:
A kind of preparation method of powdery paints coating, it is characterised in that this method concretely comprises the following steps:
(1) low temperature wet grinding:By polyester powder, copper powder, graphene and deionized water with 100:0.5~2:0.5~3:150~400
Quality than dispensing, wet grinding device is poured into after premix, abrasive media is zirconium oxide microballoons, grinding rotating speed 1700 ~
2000rpm, temperature of charge control is below 3 DEG C during grinding, as grain diameter D in material90Discharged at=2 μm, obtain serum A;
(2) precipitation of zinc oxide is compound:Using the polyester powder in serum A as reference, by zinc nitrate hexahydrate Zn (NO3)2·6H2O
With ammoniacal liquor NH3·H2O is with polyester: Zn(NO3)2·6H2O: NH3·H2O=100:2~8:0.5 ~ 1 mass ratio puts into serum A
In, disperseed and reacted with high speed shear dispersion machine, 20000 ~ 30000rpm of shear rate, serum temperature control is 80 ~ 90
DEG C, finally obtain serum B;
(3) fermented milk powder coating:Using the polyester powder in serum B as reference, with polyester:Curing agent:Levelling agent:It is bright
Agent:Degasser=100:7~9:2:2:Curing agent, levelling agent, brightener and degasser are added in serum B by 0.4 mass ratio,
Wet grinding is carried out, grinds 1700 ~ 2000rpm of rotating speed, grinding material temperature control is at 20 ~ 25 DEG C, when grain diameter in material
D90Discharged at=2 μm, obtain fermented milk powder coating C;
(4) construction of fermented milk powder paint coatings:Fermented milk powder coating C is sprayed on workpiece with ordinary liquid blackwash sprayer,
Preheated 15 ~ 30 minutes at 60 ~ 70 DEG C, make coating shrinkage, toasted 30 ~ 60 minutes at 185 ~ 200 DEG C, obtain curing powder painting
Layer.
Polyester used is terminal carboxyl polyester, and curing agent is triglycidyl isocyanurate (TGIC).
Wet grinding mill Jie's zirconium oxide microballoons diameter≤0.2mm used.
Curing powder coating layer thickness≤30 μm that construction obtains.
A kind of powdery paints coating, it is characterised in that be prepared according to any of the above-described methods described.
A kind of application of powdery paints coating.
Polyester powder and functional stuffing component are ground into serum using low temperature wet method grinding technics, then entered in serum
The precipitation of row zinc oxide is compound, adds powder coating additive and continues wet grinding, finally gives particle in serum
Footpath D90=2 μm of fermented milk powder coating.Polyester serum system may be uniformly dispersed in by this technique functional stuffing component
In, recycle ordinary liquid coating process to spray to fermented milk powder coating on workpiece, preheating, shrink, after baking, obtain
Curing powder coating.While expected antibacterial, mould proof and anti-corrosion function is realized, coating layer thickness can control this coating
Below 30 μm, the bright and clean exquisiteness of coating.
Embodiment
The present invention is described in detail by following instantiation, but protection scope of the present invention is not only restricted to these realities
Apply example.
Embodiment 1:
(1) low temperature wet grinding:By 1Kg polyester powders, 5g copper powders, 30g graphenes and 4L deionized water dispensings, after premix
Wet grinding device is poured into, abrasive media is zirconium oxide microballoons, grinds rotating speed 1700rpm, and temperature of charge control is 3 during grinding
Below DEG C, as grain diameter D in material90Discharged at=2 μm, obtain serum A.
(2) precipitation of zinc oxide is compound:By 20g zinc nitrate hexahydrates [Zn (NO3)2·6H2O] and 5g ammoniacal liquor (NH3·H2O)
Put into serum A, disperseed and reacted with high speed shear dispersion machine, shear rate 20000rpm, serum temperature control exists
90 DEG C, finally obtain serum B.
(3) fermented milk powder coating:90g curing agent, 20g levelling agents, 20g brighteners and 4g degassers are added to breast
Starch in B, carry out wet grinding, grind rotating speed 1700rpm, grinding material temperature control is at 25 DEG C, as grain diameter D in material90=
Discharged at 2 μm, obtain fermented milk powder coating C.
(4) construction of fermented milk powder paint coatings:Fermented milk powder coating C is sprayed into workpiece with ordinary liquid blackwash sprayer
On, preheated 20 minutes at 63 DEG C, make coating shrinkage, toasted 60 minutes at 185 DEG C, obtain curing powder coating.
Embodiment 2:
(1) low temperature wet grinding:By 1Kg polyester powders, 20g copper powders, 5g graphenes and 1.5L deionized water dispensings, by premix
After pour into wet grinding device, abrasive media is zirconium oxide microballoons, grind rotating speed 2000rpm, during grinding temperature of charge control
Below 3 DEG C, as grain diameter D in material90Discharged at=2 μm, obtain serum A.
(2) precipitation of zinc oxide is compound:By 80g zinc nitrate hexahydrates [Zn (NO3)2·6H2O] and 10g ammoniacal liquor (NH3·
H2O) put into serum A, disperseed and reacted with high speed shear dispersion machine, shear rate 30000rpm, serum temperature control
System finally obtains serum B at 80 DEG C.
(3) fermented milk powder coating:70g curing agent, 20g levelling agents, 20g brighteners and 4g degassers are added to breast
Starch in B, carry out wet grinding, grind rotating speed 2000rpm, grinding material temperature control is at 20 DEG C, as grain diameter D in material90=
Discharged at 2 μm, obtain fermented milk powder coating C.
(4) construction of fermented milk powder paint coatings:Fermented milk powder coating C is sprayed into workpiece with ordinary liquid blackwash sprayer
On, preheated 30 minutes at 70 DEG C, make coating shrinkage, toasted 40 minutes at 200 DEG C, obtain curing powder coating.
Embodiment 3:
(1) low temperature wet grinding:By 1Kg polyester powders, 10g copper powders, 20g graphenes and 3L deionized water dispensings, by premix
After pour into wet grinding device, abrasive media is zirconium oxide microballoons, grind rotating speed 2000rpm, during grinding temperature of charge control
Below 3 DEG C, as grain diameter D in material90Discharged at=2 μm, obtain serum A.
(2) precipitation of zinc oxide is compound:By 40g zinc nitrate hexahydrates [Zn (NO3)2·6H2O] and 8g ammoniacal liquor (NH3·H2O)
Put into serum A, disperseed and reacted with high speed shear dispersion machine, shear rate 30000rpm, serum temperature control exists
88 DEG C, finally obtain serum B.
(3) fermented milk powder coating:80g curing agent, 20g levelling agents, 20g brighteners and 4g degassers are added to breast
Starch in B, carry out wet grinding, grind rotating speed 2000rpm, grinding material temperature control is at 23 DEG C, as grain diameter D in material90=
Discharged at 2 μm, obtain fermented milk powder coating C.
(4) construction of fermented milk powder paint coatings:Fermented milk powder coating C is sprayed into workpiece with ordinary liquid blackwash sprayer
On, preheated 25 minutes at 65 DEG C, make coating shrinkage, toasted 50 minutes at 190 DEG C, obtain curing powder coating.
Claims (6)
1. a kind of preparation method of powdery paints coating, comprises the steps:
(1) low temperature wet grinding:By polyester powder, copper powder, graphene and deionized water with 100:0.5~2:0.5~3:150~400
Quality than dispensing, wet grinding device is poured into after premix, abrasive media is zirconium oxide microballoons, grinding rotating speed 1700 ~
2000rpm, temperature of charge control is below 3 DEG C during grinding, as grain diameter D in material90Discharged at=2 μm, obtain serum A;
(2) precipitation of zinc oxide is compound:Measured by reference of the polyester powder in serum A, by zinc nitrate hexahydrate Zn (NO3)2·
6H2O and ammoniacal liquor NH3·H2O is with polyester: Zn(NO3)2·6H2O: NH3·H2O=100:2~8:0.5 ~ 1 mass ratio, by six water
Close zinc nitrate Zn (NO3)2·6H2O and ammoniacal liquor NH3·H2O is put into serum A, is carried out with high speed shear dispersion machine scattered and anti-
Should, 20000 ~ 30000rpm of shear rate, serum temperature control finally obtains serum B at 80 ~ 90 DEG C;
(3) preparation of fermented milk powder coating:Measured by reference of the polyester powder in serum B, with polyester:Curing agent:Levelling agent:Light
Bright dose:Degasser=100:7~9:2:2:Curing agent, levelling agent, brightener and degasser are added to serum B by 0.4 mass ratio
In, wet grinding is carried out, grinds 1700 ~ 2000rpm of rotating speed, grinding material temperature control is at 20 ~ 25 DEG C, when particle in material
Footpath D90Discharged at=2 μm, obtain fermented milk powder coating C;
(4) construction of fermented milk powder paint coatings:Fermented milk powder coating C is sprayed on workpiece with ordinary liquid blackwash sprayer,
Preheated 15 ~ 30 minutes at 60 ~ 70 DEG C, make coating shrinkage, toasted 30 ~ 60 minutes at 185 ~ 200 DEG C, obtain curing powder painting
Layer.
2. the preparation method of powdery paints coating according to claim 1, it is characterised in that described polyester is end carboxyl
Polyester, curing agent are triglycidyl isocyanurate (TGIC).
3. the preparation method of powdery paints coating according to claim 1, it is characterised in that wet grinding mill Jie's oxygen used
Change zirconium microsphere diameter≤0.2mm.
4. the preparation method of powdery paints coating according to claim 1, it is characterised in that construct obtained curing powder
Coating layer thickness≤30 μm.
A kind of 5. powdery paints coating that the preparation method according to claim any one of 1-4 obtains.
A kind of 6. application of powdery paints coating according to claim 5.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110386831A (en) * | 2018-04-18 | 2019-10-29 | 中南大学 | A kind of graphite jig and its preparation method and application with hardened wear-resistant layer |
CN111876907A (en) * | 2020-07-09 | 2020-11-03 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of antibacterial non-woven fabric |
CN112358797A (en) * | 2020-07-10 | 2021-02-12 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of water-based paint coating |
Citations (1)
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CN106752762A (en) * | 2016-11-29 | 2017-05-31 | 安徽神剑新材料股份有限公司 | A kind of Graphene zinc oxide Polyester resin lacquer and preparation method thereof |
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2017
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Patent Citations (1)
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CN106752762A (en) * | 2016-11-29 | 2017-05-31 | 安徽神剑新材料股份有限公司 | A kind of Graphene zinc oxide Polyester resin lacquer and preparation method thereof |
Non-Patent Citations (1)
Title |
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邹小平等: "《纳米材料与敏化太阳电池》", 31 December 2014, 上海交通大学出版社 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110386831A (en) * | 2018-04-18 | 2019-10-29 | 中南大学 | A kind of graphite jig and its preparation method and application with hardened wear-resistant layer |
CN110386831B (en) * | 2018-04-18 | 2021-09-10 | 中南大学 | Graphite mold with hardened wear-resistant layer and preparation method and application thereof |
CN111876907A (en) * | 2020-07-09 | 2020-11-03 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of antibacterial non-woven fabric |
CN112358797A (en) * | 2020-07-10 | 2021-02-12 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of water-based paint coating |
CN112358797B (en) * | 2020-07-10 | 2021-12-03 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of water-based paint coating |
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