CN104449268A - Special low-temperature cured body powder coating for aluminum wheel of automobile and preparation method thereof - Google Patents
Special low-temperature cured body powder coating for aluminum wheel of automobile and preparation method thereof Download PDFInfo
- Publication number
- CN104449268A CN104449268A CN201410654730.3A CN201410654730A CN104449268A CN 104449268 A CN104449268 A CN 104449268A CN 201410654730 A CN201410654730 A CN 201410654730A CN 104449268 A CN104449268 A CN 104449268A
- Authority
- CN
- China
- Prior art keywords
- low
- temperature
- powder coating
- aluminum wheel
- temperature curing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/20—Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/66—Polyesters containing oxygen in the form of ether groups
- C08G63/668—Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/676—Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds in which at least one of the two components contains aliphatic unsaturation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/06—Unsaturated polyesters having carbon-to-carbon unsaturation
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a special low-temperature cured body powder coating for an aluminum wheel of an automobile, which consists of low-temperature cured polyester resin, epoxy resin and a latent accelerator. The invention further discloses a preparation method of the powder coating. The powder coating can be cured at 150-160 DEG C and extremely good levelling property and anti-caking performance are ensured, so that requirement for the mirror surface effect of aluminum wheel coating of the automobile is satisfied. Moreover, the coating has excellent counterbalance adhering performance and air permeability; low-temperature curing is achieved, the energy consumption for coating the aluminum wheel is reduced, and the toughness of the aluminum wheel is increased.
Description
Technical field
The present invention relates to a kind of powder coating, particularly relate to the automobile aluminum wheel hub special bottom powder powder coating of low-temperature curing, the invention still further relates to the preparation method of described powder coating.
Background technology
Powder coating is according to its good feature of environmental protection and the fast development in parts industry gradually of excellent corrosion resistance nature, and the application especially on automobile aluminum wheel hub is particularly extensive.
The solidification value of general conventional powder coatings is at 180 ~ 200 DEG C, and storing temperature is higher, the time is longer, and in the middle of practical application, energy consumption is higher; In addition, the too high fragility that also can increase aluminium wheels of solidification value, automobile aluminum wheel hub is as the main load-supporting part of automobile, and not only requirement will have enough mechanical strengths, also requires enough toughness to ensure impact resistance.Reduce the toughness that powder coating solidification temperature can increase aluminium wheels, reduce the production energy consumption of enterprise, reach the object of energy-conserving and environment-protective.
At present, the powder coating product of low-temperature curing has existed and has been used, but mainly in household appliance technical field, this type of powder coating can reach the effect of low-temperature curing, but generally traditional low temperature cured powder coating, catalyst method is added by tradition, although solve low-temperature curing, but due to powder, reactive behavior is too fast in the curing process, too responsive to temperature, when being applied to the spraying of aluminium wheel, levelling property is bad, do not possess splendid levelling property, the mirror effect requirement of aluminium wheels application cannot be met, the general second-order transition temperature of this type of powder coating is lower in addition, easily lump in transport and use procedure, affect spraying application.
Summary of the invention
An object of the present invention is the automobile aluminum wheel hub special bottom powder powder coating providing a kind of low-temperature curing, this coating can 150 ~ 160 DEG C of solidifications, and ensure splendid levelling property and resistive connection group performance, meet the mirror effect requirement of automobile aluminum wheel hub application, and there is excellent counterbalance weight and paste performance and ventilation property, not only achieve low-temperature curing, reduce the energy consumption of aluminium wheels application, also add the toughness of aluminium wheels.
Two of object of the present invention provides the preparation method of above-mentioned powder coating.
Three of object of the present invention is to provide applicable above-mentioned low-temperature curing carboxyl polyester resin used for powder coating.
Four of object of the present invention is to provide the preparation method of applicable above-mentioned low-temperature curing carboxyl polyester resin used for powder coating.
First object of the present invention is achieved through the following technical solutions: a kind of automobile aluminum wheel hub special bottom powder powder coating of low-temperature curing, forms primarily of low temperature curing polyester resin, epoxy resin and subsidence feed.
The present invention have employed low temperature curing polyester resin and epoxy resin reaction, and utilizes subsidence feed Curing, by the high reaction activity group in low temperature curing resin and monomer, reduces the initial reaction temperature of powder coating, achieves low-temperature curing.And the bridging action of subsidence feed, improve the compactness that powder coating is enough, and then improve the corrosion resistance nature of coating.
As an embodiment of the invention, described be suitable for automobile aluminum wheel hub powder coating that counterbalance weight coheres and comprise following parts by weight of component and be prepared from:
Low temperature curing polyester resin 30 ~ 50 parts
Epoxy resin 30 ~ 60 parts
Subsidence feed 0.1 ~ 5 part
0 ~ 2 part, tensio-active agent
Auxiliary agent 0 ~ 10 part
Filler 5 ~ 30 parts
Pigment 0 ~ 8 part.
Subsidence feed of the present invention is one or more terminal carboxyl polyester compounds, acid number 28 ~ 32, second-order transition temperature 81 DEG C, white powder or bulk, this subsidence feed is different from traditional imidazoles promotor, xanthochromia can not be increased and cause film colour-change, while promotion coating curing, ensure again that levelling property is almost without forfeiture.Particularly, the one in end carboxyl polycarbonates, end carboxyl polyacrylacid ester compounds and terminal carboxyl polyester compounds is comprised.
Proportion optimization between described vibrin and epoxy resin is 30:70 ~ 50:50.
Described low temperature curing polyester resin is the acid number of terminal carboxyl polyester resin, resin: 35 ~ 82 mgKOH/g, glass transition temperature Tg: 55 ~ 75 DEG C, softening temperature: 90 ~ 116 DEG C.
As one embodiment of the present invention, described low temperature curing polyester resin is formed by monomer melt polymerization under the effect of catalyzer of following weight part:
Aromatic polycarboxylic acid 36 ~ 44
Aliphatic polyol acid 0.4 ~ 8.0
Polyvalent alcohol 12 ~ 22
Branching agent 0.1 ~ 1.5
Esterifying catalyst 0 ~ 1
Water 3 ~ 5
Acidolysis agent 3 ~ 15.
Described acidolysis agent adopts a kind of or two or more mixing of terephthalic acid, m-phthalic acid, adipic acid, sebacic acid, trimellitic acid glycosides, pyromellitic dianhydride, fumaric acid glycosides and maleic anhydride.
Described aromatic polycarboxylic acid is terephthalic acid or m-phthalic acid or both mixtures.
Described aliphatic polyol acid is a kind of or two or more mixing in sebacic acid, nonane diacid, fumaric acid, 1,4 cyclohexanedicarboxylic acid, maleic anhydride and hexanodioic acid.
Described branching agent is TriMethylolPropane(TMP), trimethylolethane or tetramethylolmethane.
Described polyvalent alcohol is ethylene glycol, 2-methyl isophthalic acid, the one in ammediol, 1,3-PD, glycol ether, 1,6-propylene glycol, 1,6-ethylene glycol, BDO, neopentyl glycol, 1,4 cyclohexane dimethanol or several mixture.
Described esterifying catalyst is the organic tin such as Mono-n-butyltin or Dibutyltin oxide compound.
As an embodiment of the invention, above-mentioned low-temperature cured terminal carboxyl polyester resin can obtain with following method preparation, comprises the following steps:
1) by proportioning get polyvalent alcohol, branching agent and water add in reactor be heated to fusing;
2) add aromatic polycarboxylic acid, aliphatic polyol acid and esterifying catalyst successively by proportioning, pass into nitrogen and continue to be warming up to 175 DEG C;
3) temperature is heated to 250 DEG C by 175 DEG C, 12 ~ 29mgKOH/g is reached to acid number, first time vacuumizes carries out polycondensation, when acid number reaches 5 ~ 16mgKOH/g, softening temperature 100 ~ 105 DEG C and 200 DEG C of melt viscosity 3000 ~ 4000mpa.s, add acidolysis agent and carry out acidolysis reaction, when acid number reaches 40 ~ 90mgKOH/g, second time vacuumizes and proceeds acidolysis reaction, acid number to reaction product is 35 ~ 82mgKOH/g, stopped reaction when hydroxyl value is less than 12mgKOH/g, obtains low-temperature cured terminal carboxyl polyester resin.The acid number of this low-temperature cured terminal carboxyl polyester resin is at 35 ~ 82mgKOH/g, and softening temperature is 90 ~ 120 DEG C, and second-order transition temperature is at 60 ~ 70 DEG C.
Described epoxy resin is pressed powder epoxy resin, its epoxy equivalent (weight): 700 ~ 900g/ep, melt viscosity (cps@150 DEG C): 600 ~ 900, softening temperature (G, max.): 73 ~ 100.
As one embodiment of the present of invention, the weight proportion between described vibrin, epoxy resin is preferably 30: 70 ~ 50: 50.
Described auxiliary agent adopts conventional auxiliary agent, such as, adopt the mixture of one or more in flow agent, st-yrax, ventilating agent, optical brightener, growth agent and promotor.
Described filler is the mixture of one or more in titanium dioxide, calcium carbonate, barium sulfate, mica powder, silicon powder, superfine aluminium power.
Described pigment adopts weather resistant mineral dye, one or more during as blue or green in: iron oxide black, carbon black, chrome yellow, iron oxide red, titanium indigo plant, titanium, ultramarine, titanium are green etc.
Second goal of the invention of the present invention is achieved through the following technical solutions: the preparation method of the automobile aluminum wheel hub special bottom powder powder coating of above-mentioned low-temperature curing, comprises the following steps:
(1) take low-temperature cured terminal vibrin, epoxy resin and subsidence feed, auxiliary agent, tensio-active agent by proportioning, filler and pigment, be placed in compounding jar, and fully mixing is also broken, obtains mixing premix material;
(2) mix in premix material feeding twin screw extruder and extrude;
(3) material after extruding is packed after tabletting machine, cooling, pulverizing, screening.
The time that in described step (1), each component mixing is also broken is 1 ~ 15 minute, and the preferred time is 5 ~ 15 minutes, and the best time is 5 ~ 10 minutes.
Select JFY-30 type track type twin screw extruder in described step (2), extrusion temperature one district is 80 ~ 100 DEG C, preferably 85 ~ 95 DEG C, and 2nd district are 80 ~ 120 DEG C, preferably 95 ~ 115 DEG C.
The diameter of particle of extrudate in described step (3) after pulverizer is pulverized and sieved is 1 ~ 100 μm, preferably 1 ~ 80 μm, and more preferably 10 ~ 80 μm, diameter of particle refers to the equivalent grain size D of powder
50.
The coating process of the automobile aluminum wheel hub special bottom powder coating that the present invention adopts is: with high-pressure electrostatic spray gun, be coated on surperficial treated automobile aluminum wheel hub ground, thickness is generally 60 ~ 180 μm, preferred 100-140 μm, solidification value 150 DEG C, set time is 15 ~ 25 minutes, adopts curing oven to be cured, obtains powder powder coating at the bottom of finished automotive aluminium wheels.According to the present invention, the metal of powder coating coating is the cast member of Aluminum-aluminum alloy.And preferably clean through pretreated, such as carried out pre-treatment with zinc phosphate or tertiary iron phosphate.Base material is aluminium wheel or automobile interior furnishings part.
3rd object of the present invention is achieved through the following technical solutions: a kind of low-temperature cured terminal carboxyl polyester resin being applicable to above-mentioned powder coating, its acid number: 35 ~ 82 mgKOH/g, glass transition temperature Tg: 55 ~ 75 DEG C, softening temperature: 90 ~ 120 DEG C, its monomer component primarily of following weight part melt polymerization under the effect of catalyzer forms:
Aromatic polycarboxylic acid 36 ~ 44
Aliphatic polyol acid 0.4 ~ 8.0
Polyvalent alcohol 12 ~ 22
Branching agent 0.1 ~ 1.5
Esterifying catalyst 0 ~ 1
Water 3 ~ 5
Acidolysis agent 3 ~ 15.
Described acidolysis agent adopts the one of terephthalic acid, m-phthalic acid, adipic acid, sebacic acid, trimellitic acid glycosides, pyromellitic dianhydride, fumaric acid glycosides and maleic anhydride or several mixture.
Described aromatic polycarboxylic acid is terephthalic acid or m-phthalic acid or both mixtures.
Described aliphatic polyol acid is one in sebacic acid, nonane diacid, fumaric acid, 1,4 cyclohexanedicarboxylic acid, maleic anhydride, hexanodioic acid or two kinds.
Described branching agent is TriMethylolPropane(TMP), trimethylolethane or tetramethylolmethane.
Described polyvalent alcohol is ethylene glycol, 2-methyl isophthalic acid, the one in ammediol, 1,3-PD, glycol ether, 1,6-propylene glycol, 1,6-ethylene glycol, BDO, neopentyl glycol, 1,4 cyclohexane dimethanol or several mixture.
Described esterifying catalyst is the organic tin such as Mono-n-butyltin or Dibutyltin oxide compound.
4th object of the present invention is achieved through the following technical solutions: a kind of preparation method being applicable to the saturated carboxyl polyester resin of above-mentioned powder coating, comprises the following steps:
1) by proportioning get polyvalent alcohol, branching agent and water add in reactor be heated to fusing;
2) add aromatic polycarboxylic acid, aliphatic polyol acid and esterifying catalyst successively by proportioning, pass into nitrogen and continue to be warming up to 175 DEG C;
3) temperature is heated to 250 DEG C by 175 DEG C, 12 ~ 29mgKOH/g is reached to acid number, first time vacuumizes carries out polycondensation, when acid number reaches 5 ~ 16mgKOH/g, softening temperature 100 ~ 105 DEG C and 200 DEG C of melt viscosity 3000 ~ 4000mpa.s, add acidolysis agent and carry out acidolysis reaction, when acid number reaches 40 ~ 90mgKOH/g, second time vacuumizes and proceeds acidolysis reaction, acid number to reaction product is 35 ~ 82mgKOH/g, stopped reaction when hydroxyl value is less than 12mgKOH/g, obtains low-temperature cured terminal carboxyl polyester resin.The acid number of this low-temperature cured terminal carboxyl polyester resin is at 35 ~ 82mgKOH/g, and softening temperature is 90 ~ 120 DEG C, and second-order transition temperature is at 60 ~ 70 DEG C.
the present invention compared with prior art has the following advantages:
(1) the present invention is have employed can the vibrin of low-temperature curing and epoxy resin reaction, and utilize subsidence feed Curing, by the high reaction activity group in low temperature curing resin and monomer, reduce the initial reaction temperature of powder coating, achieve 150 ~ 160 DEG C of low-temperature curings.
(2) the present invention is by the promoter action of subsidence feed, the adequacy of solidifying when not only ensure that low temperature, and the bridging action of subsidence feed, improve the compactness that powder coating is enough, and then improve snappiness and the corrosion resistance nature of coating.
(3) though the present invention does not use imidazoles promotor and active high but that second-order transition temperature is too low vibrin, and be the use of vibrin and the latent curing agent of low viscosity appropriateness reactive behavior, the second-order transition temperature of coating is close to conventional 180 DEG C of solidifying products, stability in storage is free of losses almost, speed of response appropriateness can not be too fast, while realizing low-temperature curing, ensure that the flow time that coating is enough, flow leveling is kept, while the low-temperature curing of powder coating, ensure that the levelling property that coating is splendid and anti-caking performance, meet the mirror effect requirement of automobile aluminum wheel hub application, and there is excellent counterbalance weight and paste performance and ventilation property, not only achieve low-temperature curing, reduce the energy consumption of aluminium wheels application, also add the toughness of aluminium wheels.
Embodiment
Unless otherwise indicated, all technique and all embodiments are all carried out in the gentle pressure of standard temperature.
Scope herein all comprises end value and can mutually combine.
In this article, term " powder coating " represents powder paint compositions, and term " powder coating " represents the coating formed by powder paint compositions.
The present invention will be described to enumerate some specific exampless below, be necessary to herein means out be following specific embodiment only for the invention will be further described, do not represent limiting the scope of the invention.Some nonessential adjustment that other people make according to the present invention and amendment still belong to protection scope of the present invention.
embodiment 1
The present embodiment adopts resin to adopt acid number to be the carboxyl polyester resin of 65 ~ 75mgKOH/g, and its preparation method is as follows:
1) in a kettle., add the 13kg neopentyl glycol of fixed mixing ratio, 2kg1,4-cyclohexanedimethanol, 0.5kg TriMethylolPropane(TMP), 1kg 1,4 cyclohexane dimethanol and 3kg water, be heated to fusing.
2) add 26kg terephthalic acid, 11.5kg m-phthalic acid, 0.6kg hexanodioic acid and 0.1kg Dibutyltin oxide successively, pass into nitrogen and continue to be warming up to 175 DEG C.
3) temperature is heated to 250 DEG C by 175 DEG C, 12 ~ 29mgKOH/g is reached to acid number, first time vacuumizes carries out polycondensation, when acid number reaches 5 ~ 16mgKOH/g, softening temperature 100 ~ 105 DEG C and 200 DEG C of melt viscosity 3000 ~ 4000mpa.s, add 3kg terephthalic acid or hexanodioic acid carries out acidolysis reaction, when acid number reaches 70 ~ 80mgKOH/g, second time vacuumizes and proceeds acidolysis reaction, acid number to reaction product is 65 ~ 75mgKOH/g, stopped reaction when hydroxyl value is less than 12mgKOH/g, obtains low-temperature cured terminal carboxyl polyester resin.The acid number of this low-temperature cured terminal carboxyl polyester resin is at 65 ~ 75mgKOH/g, and softening temperature is 90 ~ 120 DEG C, and second-order transition temperature is at 60 ~ 70 DEG C.
Be suitable for the automobile aluminum wheel hub special bottom powder powder coating of low-temperature curing, its component and weight are:
Acid number is the low temperature curing polyester resin 40 parts of 65 ~ 75mgKOH/g
Epoxy equivalent (weight) is the epoxy resin 40 parts of 700 ~ 900g/ep
Subsidence feed end carboxyl polycarbonates 5 parts
2 parts, tensio-active agent
Auxiliary agent 5 parts
Filler 5 parts
Pigment 3 parts.
Auxiliary agent is flow agent, st-yrax and amino modified phenol carbamide compound.Filler is titanium dioxide and barium sulfate.Pigment adopts weather resistant mineral dye, one or more during as blue or green in: iron oxide black, carbon black, chrome yellow, iron oxide red, titanium indigo plant, titanium, ultramarine, titanium are green etc.
preparation method:
(1) take low-temperature cured terminal carboxyl polyester resin that acid number is 65 ~ 75KOH/kg in proportion, epoxy resin, subsidence feed, titanium dioxide, barium sulfate, flow agent, st-yrax, amino modified phenol carbamide compound and pigment that epoxy equivalent (weight) is 700 ~ 900g/ep is placed in compounding jar, fully mixing broken 1 ~ 10 minute.
(2) material after pre-mixing enters JFY-30 type track type twin screw extruder and extrudes, and extrusion temperature one district is 80 ~ 100 DEG C, preferably 85 ~ 95 DEG C, and 2nd district are 80 ~ 120 DEG C, preferably 95 ~ 115 DEG C.
(3) material after extruding is ground into through compressing tablet, cooling, pulverizer the powder that particle diameter (equivalent grain size D50) is 30 ~ 45 μm, then packaging after screening.
Film performance after the product painting 150 DEG C/20min obtained by above-described embodiment solidifies is as follows:
embodiment 2
The vibrin of the present embodiment adopts the carboxy(l)polyester resin of 65 ~ 75KOH/kg of embodiment 1.
Be suitable for the automobile aluminum wheel hub powder coating that counterbalance weight coheres, its component and weight are:
Acid number is the low temperature curing polyester resin 35 parts of 65 ~ 75mgKOH/g
Epoxy equivalent (weight) is the epoxy resin 35 parts of 720 ~ 850g/ep
Terminal carboxyl polyester compounds subsidence feed 2 parts
2 parts, tensio-active agent
Auxiliary agent 5 parts
Filler 20 parts
Pigment 1 part.
Auxiliary agent is flow agent, st-yrax and amino modified phenol carbamide compound.Filler is titanium dioxide and barium sulfate.Pigment adopts weather resistant mineral dye, one or more during as blue or green in: iron oxide black, carbon black, chrome yellow, iron oxide red, titanium indigo plant, titanium, ultramarine, titanium are green etc.
preparation method:
(1) take low-temperature curing carboxyl polyester resin that acid number is 65 ~ 75KOH/kg in proportion, epoxy resin, subsidence feed, titanium dioxide, barium sulfate, flow agent, st-yrax, amino modified phenol carbamide compound and pigment that epoxy equivalent (weight) is 720 ~ 850g/ep is placed in compounding jar, fully mixing broken 1 ~ 10 minute.
(2) material after pre-mixing enters JFY-30 type track type twin screw extruder and extrudes, and extrusion temperature one district is 80 ~ 100 DEG C, preferably 85 ~ 95 DEG C, and 2nd district are 80 ~ 120 DEG C, preferably 95 ~ 115 DEG C.
(3) material after extruding is ground into through compressing tablet, cooling, pulverizer the powder that particle diameter (equivalent grain size D50) is 40 ~ 50 μm, then packaging after screening.
Film performance after the product painting storing temperature 150 DEG C/25min obtained by above-described embodiment solidifies is as follows:
embodiment 3
The present embodiment adopts resin to adopt acid number to be the carboxyl polyester resin of 50 ~ 64mgKOH/g, and its preparation method is as follows:
1) in a kettle., add 0.5kg1, ammediol, 0.3kg glycol ether, 14kg neopentyl glycol, 0.2kg TriMethylolPropane(TMP), 2.0kg1,4-cyclohexanedimethanol and 4.0kg water, be heated to fusing.
2) add 32kg terephthalic acid, 10kg m-phthalic acid, 1.0kg maleic anhydride and 0.5kg Dibutyltin oxide successively, pass into nitrogen and continue to be warming up to 175 DEG C.
3) temperature is heated to 250 DEG C by 175 DEG C, 16 ~ 25mgKOH/g is reached to acid number, first time vacuumizes carries out polycondensation, when acid number reaches 6 ~ 14mgKOH/g, softening temperature 100 ~ 105 DEG C and 200 DEG C of melt viscosity 3000 ~ 4000mpa.s, add 3kg terephthalic acid or maleic anhydride carries out acidolysis reaction, when acid number reaches 55 ~ 70mgKOH/g, second time vacuumizes and proceeds acidolysis reaction, acid number to reaction product is 50 ~ 64mgKOH/g, stopped reaction when hydroxyl value is less than 12mgKOH/g, obtains low-temperature cured terminal carboxyl polyester resin.The acid number of this low-temperature cured terminal carboxyl polyester resin is at 50 ~ 64mgKOH/g, and softening temperature is 90 ~ 115 DEG C, and second-order transition temperature is at 60 ~ 70 DEG C.
Be suitable for the automobile aluminum wheel hub powder coating that counterbalance weight coheres, its component and weight are:
Acid number is the low temperature curing polyester resin 40 parts of 50 ~ 64mgKOH/g
Epoxy equivalent (weight) is the epoxy resin 30 parts of 700 ~ 750g/ep
Subsidence feed end carboxyl polycarbonates 4 parts
2 parts, tensio-active agent
Auxiliary agent 2 parts
Filler 20 parts
Pigment 1 part.
Auxiliary agent is esters of acrylic acid flow agent GLP-588 and st-yrax.Filler is titanium dioxide and barium sulfate.Pigment adopts weather resistant mineral dye, one or more during as blue or green in: iron oxide black, carbon black, chrome yellow, iron oxide red, titanium indigo plant, titanium, ultramarine, titanium are green etc.
preparation method:
Epoxy resin, titanium dioxide, barium sulfate, esters of acrylic acid flow agent GLP-588, st-yrax and pigment that a () takes low-temperature curing carboxyl polyester resin that acid number is 50 ~ 64KOH/kg in proportion, epoxy equivalent (weight) is 700 ~ 750g/ep are placed in compounding jar, fully mixing broken 1 ~ 10 minute.
B the material after () pre-mixing enters JFY-30 type track type twin screw extruder and extrudes, extrusion temperature one district is 80 ~ 100 DEG C, preferably 85 ~ 95 DEG C, and 2nd district are 80 ~ 120 DEG C, preferably 95 ~ 115 DEG C.
(c) extrude after material be ground into through compressing tablet, cooling, pulverizer the powder that particle diameter (equivalent grain size D50) is 35 ~ 50 um, then packaging and get final product after screening.
Film performance after the product painting storing temperature 160 DEG C/15min obtained by above-described embodiment solidifies is as follows:
embodiment 4
The vibrin of the present embodiment adopts the saturated carboxyl polyester resin of 50 ~ 64KOH/kg of embodiment 3.
Be suitable for the automobile aluminum wheel hub powder coating that counterbalance weight coheres, its component and weight are:
Acid number is the low temperature curing polyester resin 35 parts of 50 ~ 64mgKOH/g
Epoxy equivalent (weight) is the epoxy resin 30 parts of 720 ~ 900g/ep
Subsidence feed end carboxyl polyacrylacid ester compounds 3 parts
2 parts, tensio-active agent
Auxiliary agent 8 parts
Filler 15 parts
Pigment 7 parts.
Auxiliary agent is esters of acrylic acid flow agent PLP-100 and st-yrax.Filler is titanium dioxide and barium sulfate.Pigment adopts weather resistant mineral dye, one or more during as blue or green in: iron oxide black, carbon black, chrome yellow, iron oxide red, titanium indigo plant, titanium, ultramarine, titanium are green etc.
preparation method:
Epoxy resin, titanium dioxide, barium sulfate, esters of acrylic acid flow agent PLP-100, st-yrax and pigment that a () takes saturated carboxyl polyester resin that acid number is 50 ~ 64KOH/kg in proportion, epoxy equivalent (weight) is 720 ~ 900g/ep are placed in compounding jar, fully mixing broken 1 ~ 10 minute.
B the material after () pre-mixing enters JFY-30 type track type twin screw extruder and extrudes, extrusion temperature one district is 80 ~ 100 DEG C, preferably 85 ~ 95 DEG C, and 2nd district are 80 ~ 120 DEG C, preferably 95 ~ 115 DEG C.
(c) extrude after material be ground into through compressing tablet, cooling, pulverizer the powder that particle diameter (equivalent grain size D50) is 32 ~ 50 um, then packaging and get final product after screening.
Film performance after the product painting storing temperature 150 DEG C/15min obtained by above-described embodiment solidifies is as follows:
embodiment 5
The resin of the present embodiment adopts acid number to be the carboxyl polyester resin of 35 ~ 48mgKOH/g, and its preparation method is as follows:
1) in a kettle., add 15Kg neopentyl glycol, 1.5kg TriMethylolPropane(TMP), 2kg 1,4 cyclohexane dimethanol and 5kg water, be heated to fusing.
2) add 30kg terephthalic acid, 6kg m-phthalic acid, 1.5 nonane diacids, 0.3 fumaric acid, 0.1kg hexanodioic acid and 0.5kg Dibutyltin oxide successively, pass into nitrogen and continue to be warming up to 175 DEG C.
3) temperature is heated to 250 DEG C by 175 DEG C, 16 ~ 25mgKOH/g is reached to acid number, first time vacuumizes carries out polycondensation, when acid number reaches 5 ~ 16mgKOH/g, softening temperature 100 ~ 105 DEG C and 200 DEG C of melt viscosity 3000 ~ 4000mpa.s, add 3.5kg terephthalic acid or nonane diacid carries out acidolysis reaction, when acid number reaches 40 ~ 65mgKOH/g, second time vacuumizes and proceeds acidolysis reaction, acid number to reaction product is 35 ~ 48mgKOH/g, stopped reaction when hydroxyl value is less than 12mgKOH/g, obtains low-temperature cured terminal carboxyl polyester resin.The acid number of this low-temperature cured terminal carboxyl polyester resin is at 35 ~ 48mgKOH/g, and softening temperature is 90 ~ 115 DEG C, and second-order transition temperature is at 60 ~ 70 DEG C.
Be suitable for the automobile aluminum wheel hub powder coating that counterbalance weight coheres, its component and weight are:
Acid number is the low temperature curing polyester resin 49 parts of 35 ~ 48mgKOH/g
Epoxy equivalent (weight) is the epoxy resin 30 parts of 700 ~ 900g/ep
Subsidence feed end carboxyl polyacrylacid ester compounds 0.3 part
0.7 part, tensio-active agent
Auxiliary agent 5 parts
Filler 10 parts
Pigment 5 parts.
Auxiliary agent is flow agent, st-yrax and amino modified phenol carbamide compound.Filler is titanium dioxide and barium sulfate.Pigment adopts weather resistant mineral dye, one or more during as blue or green in: iron oxide black, carbon black, chrome yellow, iron oxide red, titanium indigo plant, titanium, ultramarine, titanium are green etc.
preparation method:
(1) take saturated carboxyl polyester resin that acid number is 35 ~ 48KOH/kg in proportion, epoxy resin, subsidence feed, titanium dioxide, barium sulfate, flow agent, st-yrax, amino modified phenol carbamide compound and pigment that epoxy equivalent (weight) is 700 ~ 900g/ep is placed in compounding jar, fully mixing broken 1 ~ 10 minute.
(2) material after pre-mixing enters JFY-30 type track type twin screw extruder and extrudes, and extrusion temperature one district is 80 ~ 100 DEG C, preferably 85 ~ 95 DEG C, and 2nd district are 80 ~ 120 DEG C, preferably 95 ~ 115 DEG C.
(3) material after extruding is ground into through compressing tablet, cooling, pulverizer the powder that particle diameter (equivalent grain size D50) is 35 ~ 45 μm, then packaging after screening.
Film performance after the product painting storing temperature 150 DEG C/20min obtained by above-described embodiment solidifies is as follows:
In above-described embodiment 1 to 5, acidolysis agent also can adopt terephthalic acid.Filler can also adopt the mixture of one or more in calcium carbonate, silicon powder, mica powder and superfine aluminium power.
Claims (10)
1. be suitable for an automobile aluminum wheel hub special bottom powder powder coating for low-temperature curing, it is characterized in that, form primarily of low temperature curing polyester resin, epoxy resin and subsidence feed.
2. the automobile aluminum wheel hub special bottom powder powder coating of low-temperature curing according to claim 1, is characterized in that, be prepared from by following parts by weight of component:
Low temperature curing polyester resin 30 ~ 50 parts
Epoxy resin 30 ~ 60 parts
Subsidence feed 0.1 ~ 5 part
0 ~ 2 part, tensio-active agent
Auxiliary agent 0 ~ 10 part
Filler 5 ~ 30 parts
Pigment 0 ~ 8 part.
3. the automobile aluminum wheel hub special bottom powder powder coating of low-temperature curing according to claim 1, is characterized in that, described subsidence feed is one or more terminal carboxyl polyester compounds.
4. the automobile aluminum wheel hub special bottom powder powder coating of low-temperature curing according to claim 3, it is characterized in that, described subsidence feed is one or more the mixing in end carboxyl polycarbonates, end carboxyl polyacrylacid ester compounds and terminal carboxyl polyester compounds.
5. the automobile aluminum wheel hub special bottom powder powder coating of low-temperature curing according to claim 1 and 2, it is characterized in that, the proportioning between described low-temperature cured terminal carboxyl polyester resin and epoxy resin is 30:70 ~ 50:50.
6. the automobile aluminum wheel hub special bottom powder powder coating of low-temperature curing according to claim 1 and 2, it is characterized in that, low temperature curing polyester resin is terminal carboxyl polyester resin, acid number 35 ~ 82 mgKOH/g, glass transition temperature Tg 55 ~ 75 DEG C, softening temperature 90 ~ 116 DEG C.
7. the automobile aluminum wheel hub special bottom powder powder coating of low-temperature curing according to claim 1 and 2, is characterized in that, described auxiliary agent is the mixture of one or more in flow agent, st-yrax, ventilating agent, optical brightener, growth agent and promotor; Described filler is the mixture of one or more in titanium dioxide, calcium carbonate, barium sulfate, mica powder, silicon powder, superfine aluminium power; Described pigment is weather resistant mineral dye.
8. the preparation method of the automobile aluminum wheel hub special bottom powder powder coating of the low-temperature curing described in any one of claim 1 ~ 7, is characterized in that, comprise the following steps:
(1) take low-temperature cured terminal vibrin, epoxy resin and subsidence feed, auxiliary agent, tensio-active agent by proportioning, filler and pigment, be placed in compounding jar, and fully mixing is also broken, obtains mixing premix material;
(2) mix in premix material feeding twin screw extruder and extrude;
(3) material after extruding is packed after tabletting machine, cooling, pulverizing, screening.
9. one kind is applicable to the low-temperature curing carboxyl polyester resin of the automobile aluminum wheel hub special bottom powder powder coating of the low-temperature curing described in claim 1 ~ 7, it is characterized in that, its acid number: 35 ~ 82 mgKOH/g, glass transition temperature Tg: 55 ~ 75 DEG C, softening temperature: 90 ~ 120 DEG C, its monomer component primarily of following weight part melt polymerization under the effect of catalyzer forms:
Aromatic polycarboxylic acid 36 ~ 44
Aliphatic polyol acid 0.4 ~ 8.0
Polyvalent alcohol 12 ~ 22
Branching agent 0.1 ~ 1.5
Esterifying catalyst 0 ~ 1
Water 3 ~ 5
Acidolysis agent 3 ~ 15.
10. the preparation method of low-temperature curing carboxyl polyester resin according to claim 9, is characterized in that, comprise the following steps:
1) by proportioning get polyvalent alcohol, branching agent and water add in reactor be heated to fusing;
2) add aromatic polycarboxylic acid, aliphatic polyol acid and esterifying catalyst successively by proportioning, pass into nitrogen and continue to be warming up to 175 DEG C;
3) temperature is heated to 250 DEG C by 175 DEG C, 12 ~ 29mgKOH/g is reached to acid number, first time vacuumizes carries out polycondensation, when acid number reaches 5 ~ 16mgKOH/g, softening temperature 100 ~ 105 DEG C and 200 DEG C of melt viscosity 3000 ~ 4000mpa.s, add acidolysis agent and carry out acidolysis reaction, when acid number reaches 40 ~ 90mgKOH/g, second time vacuumizes and proceeds acidolysis reaction, acid number to reaction product is 35 ~ 82mgKOH/g, stopped reaction when hydroxyl value is less than 12mgKOH/g, obtains low-temperature cured terminal carboxyl polyester resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410654730.3A CN104449268B (en) | 2014-11-18 | 2014-11-18 | Special low-temperature cured body powder coating for aluminum wheel of automobile and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410654730.3A CN104449268B (en) | 2014-11-18 | 2014-11-18 | Special low-temperature cured body powder coating for aluminum wheel of automobile and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104449268A true CN104449268A (en) | 2015-03-25 |
| CN104449268B CN104449268B (en) | 2017-02-22 |
Family
ID=52896047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410654730.3A Active CN104449268B (en) | 2014-11-18 | 2014-11-18 | Special low-temperature cured body powder coating for aluminum wheel of automobile and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104449268B (en) |
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104403092A (en) * | 2014-12-15 | 2015-03-11 | 天津凯华绝缘材料股份有限公司 | Polyester curing agent with hyperbranched structure and synthetic method of polyester curing agent |
| CN104927543A (en) * | 2015-06-02 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Paint for automobile hub renovation |
| CN104927593A (en) * | 2015-06-02 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Preparation process for paint for automobile hub renovation |
| CN104927594A (en) * | 2015-06-02 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Processing technology for paint for automobile hub renovation |
| CN104927612A (en) * | 2015-06-02 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Preparation technology for paint for automobile hub renovation |
| CN104927598A (en) * | 2015-06-02 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Preparation technology for paint for automobile hub renovation |
| CN104927595A (en) * | 2015-06-02 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Processing method for paint for automobile hub renovation |
| CN104927613A (en) * | 2015-06-02 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Preparation method for paint for automobile hub renovation |
| CN104927554A (en) * | 2015-06-02 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Preparation method for paint for automobile hub renovation |
| CN104927596A (en) * | 2015-06-02 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Preparation method for paint for automobile hub renovation |
| CN104927597A (en) * | 2015-06-02 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Formula for paint for automobile hub renovation |
| CN105176335A (en) * | 2015-10-30 | 2015-12-23 | 安徽神剑新材料股份有限公司 | Anti-caking powder coating |
| CN105199562A (en) * | 2015-10-30 | 2015-12-30 | 安徽神剑新材料股份有限公司 | Anti-caking powder coating |
| CN106398482A (en) * | 2016-08-30 | 2017-02-15 | 安徽美佳新材料股份有限公司 | Low-temperature curing hammer tone powder coating and preparation method thereof |
| CN106519190A (en) * | 2016-10-31 | 2017-03-22 | 福州大学 | Epoxy resin composition taking acrylate as latent curing agent |
| CN106543867A (en) * | 2016-10-18 | 2017-03-29 | 浙江捷宇新材料科技股份有限公司 | A kind of wheel hub special bottom powder powdery paints and preparation method thereof |
| CN106752759A (en) * | 2016-11-22 | 2017-05-31 | 天长市金陵电子有限责任公司 | A kind of electrostatic spraying special low temperature cured powder paint and preparation method thereof |
| CN107868584A (en) * | 2017-11-14 | 2018-04-03 | 广州擎天材料科技有限公司 | A kind of automobile aluminum wheel hub Lacquer finish matt transparent powder paint and preparation method thereof |
| CN107892865A (en) * | 2017-11-15 | 2018-04-10 | 广州擎天材料科技有限公司 | A kind of automobile aluminum wheel hub bottom surface unification electrosilvering special bottom powder coating and preparation method thereof |
| CN108034045A (en) * | 2018-01-16 | 2018-05-15 | 浙江光华科技股份有限公司 | A kind of height, which is filled up, hides trace polyester resin for powder coating and preparation method thereof |
| CN109535922A (en) * | 2018-10-16 | 2019-03-29 | 广州擎天材料科技有限公司 | A kind of high levelling low brightness paint powder of automobile parts low-temperature setting and preparation method thereof |
| CN109735212A (en) * | 2018-12-30 | 2019-05-10 | 江南载福粉末涂料（张家港）有限公司 | A kind of automotive hub spraying low smooth transparent powder paint |
| CN110804329A (en) * | 2019-11-29 | 2020-02-18 | 老虎表面技术新材料（清远）有限公司 | Powder coating facilitating powdering and resisting solidification and sliding and application thereof |
| CN111073455A (en) * | 2019-12-31 | 2020-04-28 | 广东睿智环保科技有限责任公司 | Low-energy-consumption powder coating for coating wheel hub |
| CN112588474A (en) * | 2020-12-04 | 2021-04-02 | 恒大新能源汽车投资控股集团有限公司 | Spraying method for improving appearance of automobile body paint surface |
| CN112724783A (en) * | 2020-12-29 | 2021-04-30 | 江南载福粉末涂料（张家港）有限公司 | Low-gloss powder coating for hub primer and preparation method thereof |
| CN113930133A (en) * | 2021-11-18 | 2022-01-14 | 山东东宏管业股份有限公司 | Heavy-duty anticorrosion fusion-bonding epoxy powder coating special for roll coating of large-diameter steel pipe and preparation method thereof |
| CN116716026A (en) * | 2023-07-18 | 2023-09-08 | 老虎表面技术新材料（苏州）有限公司 | Metal effect powder coating composition, curing method and coating thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4137275A (en) * | 1976-04-27 | 1979-01-30 | Westinghouse Electric Corp. | Latent accelerators for curing epoxy resins |
| CN101735432A (en) * | 2009-12-25 | 2010-06-16 | 广州擎天实业有限公司 | Low-temperature cured terminal carboxyl polyester resin for mixed powder coating and preparation method thereof |
| CN102911585A (en) * | 2012-09-28 | 2013-02-06 | 广州擎天实业有限公司 | Special primer paint for medium and high grade automobile aluminum hubs and preparation method of primer paint |
| CN103333588A (en) * | 2013-06-18 | 2013-10-02 | 江苏华光粉末有限公司 | Low temperature curing powder coating and preparation method thereof |
| CN104073187A (en) * | 2013-03-27 | 2014-10-01 | 南京喜力特胶粘剂有限公司 | Epoxy electric conductive adhesive and preparing method thereof |
-
2014
- 2014-11-18 CN CN201410654730.3A patent/CN104449268B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4137275A (en) * | 1976-04-27 | 1979-01-30 | Westinghouse Electric Corp. | Latent accelerators for curing epoxy resins |
| CN101735432A (en) * | 2009-12-25 | 2010-06-16 | 广州擎天实业有限公司 | Low-temperature cured terminal carboxyl polyester resin for mixed powder coating and preparation method thereof |
| CN102911585A (en) * | 2012-09-28 | 2013-02-06 | 广州擎天实业有限公司 | Special primer paint for medium and high grade automobile aluminum hubs and preparation method of primer paint |
| CN104073187A (en) * | 2013-03-27 | 2014-10-01 | 南京喜力特胶粘剂有限公司 | Epoxy electric conductive adhesive and preparing method thereof |
| CN103333588A (en) * | 2013-06-18 | 2013-10-02 | 江苏华光粉末有限公司 | Low temperature curing powder coating and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 徐晓伟 等: "节能型聚酯/环氧粉末涂料研究", 《涂料工业》 * |
Cited By (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104403092A (en) * | 2014-12-15 | 2015-03-11 | 天津凯华绝缘材料股份有限公司 | Polyester curing agent with hyperbranched structure and synthetic method of polyester curing agent |
| CN104927554A (en) * | 2015-06-02 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Preparation method for paint for automobile hub renovation |
| CN104927613A (en) * | 2015-06-02 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Preparation method for paint for automobile hub renovation |
| CN104927594A (en) * | 2015-06-02 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Processing technology for paint for automobile hub renovation |
| CN104927612A (en) * | 2015-06-02 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Preparation technology for paint for automobile hub renovation |
| CN104927596A (en) * | 2015-06-02 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Preparation method for paint for automobile hub renovation |
| CN104927595A (en) * | 2015-06-02 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Processing method for paint for automobile hub renovation |
| CN104927593A (en) * | 2015-06-02 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Preparation process for paint for automobile hub renovation |
| CN104927543A (en) * | 2015-06-02 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Paint for automobile hub renovation |
| CN104927598A (en) * | 2015-06-02 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Preparation technology for paint for automobile hub renovation |
| CN104927597A (en) * | 2015-06-02 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Formula for paint for automobile hub renovation |
| CN105176335A (en) * | 2015-10-30 | 2015-12-23 | 安徽神剑新材料股份有限公司 | Anti-caking powder coating |
| CN105199562A (en) * | 2015-10-30 | 2015-12-30 | 安徽神剑新材料股份有限公司 | Anti-caking powder coating |
| CN106398482A (en) * | 2016-08-30 | 2017-02-15 | 安徽美佳新材料股份有限公司 | Low-temperature curing hammer tone powder coating and preparation method thereof |
| CN106398482B (en) * | 2016-08-30 | 2018-08-28 | 安徽美佳新材料股份有限公司 | A kind of low-temperature setting mallear stria powdery paints and preparation method thereof |
| CN106543867A (en) * | 2016-10-18 | 2017-03-29 | 浙江捷宇新材料科技股份有限公司 | A kind of wheel hub special bottom powder powdery paints and preparation method thereof |
| CN106519190A (en) * | 2016-10-31 | 2017-03-22 | 福州大学 | Epoxy resin composition taking acrylate as latent curing agent |
| CN106752759A (en) * | 2016-11-22 | 2017-05-31 | 天长市金陵电子有限责任公司 | A kind of electrostatic spraying special low temperature cured powder paint and preparation method thereof |
| CN107868584A (en) * | 2017-11-14 | 2018-04-03 | 广州擎天材料科技有限公司 | A kind of automobile aluminum wheel hub Lacquer finish matt transparent powder paint and preparation method thereof |
| CN107892865A (en) * | 2017-11-15 | 2018-04-10 | 广州擎天材料科技有限公司 | A kind of automobile aluminum wheel hub bottom surface unification electrosilvering special bottom powder coating and preparation method thereof |
| CN108034045A (en) * | 2018-01-16 | 2018-05-15 | 浙江光华科技股份有限公司 | A kind of height, which is filled up, hides trace polyester resin for powder coating and preparation method thereof |
| CN109535922B (en) * | 2018-10-16 | 2021-05-04 | 擎天材料科技有限公司 | Low-temperature curing high-leveling low-gloss powder coating for automobile parts and preparation method thereof |
| CN109535922A (en) * | 2018-10-16 | 2019-03-29 | 广州擎天材料科技有限公司 | A kind of high levelling low brightness paint powder of automobile parts low-temperature setting and preparation method thereof |
| CN109735212A (en) * | 2018-12-30 | 2019-05-10 | 江南载福粉末涂料（张家港）有限公司 | A kind of automotive hub spraying low smooth transparent powder paint |
| CN110804329A (en) * | 2019-11-29 | 2020-02-18 | 老虎表面技术新材料（清远）有限公司 | Powder coating facilitating powdering and resisting solidification and sliding and application thereof |
| CN110804329B (en) * | 2019-11-29 | 2022-08-30 | 老虎表面技术新材料（清远）有限公司 | Powder coating facilitating powdering and resisting solidification and sliding and application thereof |
| CN111073455A (en) * | 2019-12-31 | 2020-04-28 | 广东睿智环保科技有限责任公司 | Low-energy-consumption powder coating for coating wheel hub |
| CN112588474A (en) * | 2020-12-04 | 2021-04-02 | 恒大新能源汽车投资控股集团有限公司 | Spraying method for improving appearance of automobile body paint surface |
| CN112588474B (en) * | 2020-12-04 | 2022-04-15 | 恒大新能源汽车投资控股集团有限公司 | Spraying method for improving appearance of automobile body paint surface |
| CN112724783A (en) * | 2020-12-29 | 2021-04-30 | 江南载福粉末涂料（张家港）有限公司 | Low-gloss powder coating for hub primer and preparation method thereof |
| CN113930133A (en) * | 2021-11-18 | 2022-01-14 | 山东东宏管业股份有限公司 | Heavy-duty anticorrosion fusion-bonding epoxy powder coating special for roll coating of large-diameter steel pipe and preparation method thereof |
| CN113930133B (en) * | 2021-11-18 | 2023-07-25 | 山东东宏管业股份有限公司 | Heavy-duty corrosion-resistant sintering epoxy powder coating special for roll coating of large-caliber steel pipe and preparation method thereof |
| CN116716026A (en) * | 2023-07-18 | 2023-09-08 | 老虎表面技术新材料（苏州）有限公司 | Metal effect powder coating composition, curing method and coating thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104449268B (en) | 2017-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104449268A (en) | Special low-temperature cured body powder coating for aluminum wheel of automobile and preparation method thereof | |
| CN102898933B (en) | High weather-proof and corrosion-resistant powder paint for satellite earth antenna and preparation method thereof | |
| CN101735432B (en) | Low-temperature cured terminal carboxyl polyester resin for mixed powder coating and preparation method thereof | |
| CN102898924A (en) | Automobile aluminium wheel hub powdery paint suitable for bonding counterbalances and preparation method thereof | |
| CN103483988B (en) | A kind of water boiling resistance grit powder coating being applicable to powder on aluminium section bar corner and preparation method thereof | |
| CN102911585B (en) | A kind of medium-to-high grade automobile aluminum wheel hub special bottom powder coating and preparation method thereof | |
| CN103739830B (en) | Polyester resin for TGIC cured high-toughness powder coating and preparation method thereof | |
| CN103131308B (en) | A kind of be superly weather-proofly dry mixed extinction powder coating just acid number bicomponent terminal carboxyl polyester resin composition and application thereof | |
| CN109280468B (en) | Organic silicon modified polyester resin for super-weather-resistant powder coating and preparation method thereof | |
| CN105254860B (en) | A kind of Constructional Machinery polyester resin for powder coating and preparation method thereof | |
| CN101508869B (en) | Stainless steel colored aluminum silver power paint and method of preparing the same | |
| CN102942837A (en) | Polyester resin for one-step method low light powder paint and preparation method of polyester resin | |
| EP2739665B1 (en) | Thermosetting durable powder coating composition | |
| CN109306232B (en) | Powder coating polyester resin for motor vehicle exhaust pipe and preparation method thereof | |
| CN102127212A (en) | Terminal carboxyl group polyester resin for weather-resistance high-gloss powder coating and preparation method thereof | |
| EP2085441A1 (en) | Powder Composition | |
| KR102374055B1 (en) | Powder paint for home appliance coil material and its manufacturing method | |
| WO2021016731A1 (en) | Polyester resin and preparation method therefor, coating, and workpiece | |
| CN104910659A (en) | Weatherability modified polyester resin coating powder | |
| CN105273558A (en) | Low-temperature curing type epoxy group acrylic acid transparent powder coating and preparation method thereof | |
| CN102408819A (en) | Novel environment-friendly flat coiled material pre-painting powder coating and preparation method thereof | |
| CN104497289A (en) | Low-temperature-curing polyester resin for powder paints, powder paint using resin and preparation method thereof | |
| CN103483993A (en) | Low-temperature curing powder paint | |
| CN109762440A (en) | A kind of low temperature curing type powdery paints and preparation method thereof | |
| CN109401550B (en) | 50/50 Low-temperature curing type polyester resin, preparation method and application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No.5 Lisha East Road, Shatian Town, Dongguan City, Guangdong Province 523000 Patentee after: Qingtian Material Technology Co., Ltd Address before: Shiling Town, Huadu District, Guangzhou City, Guangdong province 510860 Yufeng Road No. 16 Patentee before: GUANGZHOU KINTE INDUSTRIAL Co.,Ltd. |