CN104387927A - Powder coating - Google Patents
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- CN104387927A CN104387927A CN201410608873.0A CN201410608873A CN104387927A CN 104387927 A CN104387927 A CN 104387927A CN 201410608873 A CN201410608873 A CN 201410608873A CN 104387927 A CN104387927 A CN 104387927A
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- Prior art keywords
- acid
- powder coating
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- alcohol
- warming
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- 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.)
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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
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
-
- 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
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/199—Acids or hydroxy compounds containing cycloaliphatic rings
-
- 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
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/47—Levelling agents
-
- 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
- C08G2150/00—Compositions for coatings
- C08G2150/20—Compositions for powder coatings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
Abstract
The invention relates to a powder coating suitable for outdoors. The powder coating comprises the following raw materials in parts by mass: 550-570 parts of polyester resin, 32-40 parts of a curing agent, 8-12 parts of a flatting agent, 370-390 parts of a filler, 5 parts of benzoin and 3 parts of a brightness-enhancing agent. The coating has good weather resistance.
Description
Technical field
The invention belongs to organic coating technical field, be specifically related to a kind of powder coating being applicable to open air.
Background technology
In recent years, powder coating is in application process, and especially outdoor powder coating, needs powder coating to have good outdoor weatherability, and in the external conditions of condition harshness, can keep the primary characteristic of coating for a long time, properties is without obvious decline.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide a kind of powder coating, this coating has good weathering resistance.
For achieving the above object, the present invention adopts following technical scheme:
A kind of powder coating, its raw material and mass parts thereof are: vibrin 550-570 part, solidifying agent 32-40 part, flow agent 8-12 part, filler 370-390 part, st-yrax 5 parts, optical brightener 3 parts;
Described filler be selected from barium sulfate, titanium dioxide one or both;
Described auxiliary agent is st-yrax;
Described vibrin is super weather-proof low temperature curing type vibrin, and its feed composition and mass parts thereof are: dibasic alcohol 1600-1800 part, sour 2600-2900 part, esterifying catalyst 5 parts;
Described dibasic alcohol is selected from neopentyl glycol or neopentyl glycol and 1,6-hexylene glycol, the mixture of one or more in 2-ethyl-2-butyl-1,3-PD alcohol, hydroxypivalic acid DOPCP, cyclohexanedimethanol;
The mass ratio of described dibasic alcohol is: neopentyl glycol: 1,6-hexylene glycol: 2-ethyl-2-butyl-1,3-PD: cyclohexanedimethanol: hydroxypivalic acid DOPCP=70-100:0-10:0-30:0-10:0-30;
Described acid is the mixture of one or more in m-phthalic acid or m-phthalic acid and cyclohexane cyclohexanedimethanodibasic, HHPA, hexanodioic acid;
The mass ratio of described acid is: m-phthalic acid: cyclohexane cyclohexanedimethanodibasic: HHPA: hexanodioic acid 82.5-100:0-5:0-10:0-7.5;
Described catalyzer is Mono-n-butyltin.
Super weather-proof low temperature curing type vibrin is prepared by following method:
A, first stage: the alcohol of formula ratio is dropped into reactor, be heated to 110 ~ 125 DEG C, treat that alcohol melts completely, stir with the rotating speed of 130 ~ 150r/min, drop into the esterifying catalyst of acid and formula ratio again, be warming up to 180 DEG C, be warming up to 245 ~ 250 DEG C with the heat-up rate of 5 DEG C/30min, maintain acid number and be less than 12mgKOH/g;
B, subordinate phase: be cooled to 210 ~ 220 DEG C, drop into acid, be warming up to 235 ~ 240 DEG C, maintenance acid number is 50 ~ 55mgKOH/g;
C, phase III: be cooled to 220 ~ 230 DEG C and vacuumize, vacuum tightness is-0.09 ~-0.1MPa, and maintenance acid number is 38 ~ 44mgKOH/g.
The acid of described first stage input comprises the component of following mass percent: the m-phthalic acid of 90% ~ 100% and the cyclohexane cyclohexanedimethanodibasic of 0 ~ 10%, and input amount is 2200-2400 part; The acid that described subordinate phase drops into comprises the component of following mass percent: the m-phthalic acid of 75% ~ 100%, the HHPA of 0% ~ 20% and 0 ~ 15% hexanodioic acid, input amount is 350-450 part, and the amount sum of the acid that first stage and subordinate phase are dropped into is 2600-2900 part;
Compared with prior art, remarkable advantage of the present invention is: powder coating disclosed by the invention, has low-temperature curing characteristic, and the powder coating formed after baking-curing has significant weathering resistance.There are other performances preferably simultaneously.
Embodiment
Below in conjunction with embodiment, the present invention is described in detail.
Embodiment 1
A kind of powder coating, its raw material and mass parts thereof are in table 3;
The preparation of vibrin in powder coating:
First stage: the alcohol of formula ratio is dropped into reactor, is heated to 110 DEG C, treats that alcohol melts completely, stir with the rotating speed of 130r/min, then drop into acid and the esterifying catalyst of formula ratio, be warming up to 180 DEG C, be warming up to 245 DEG C with the heat-up rate of 5 DEG C/30min, maintain acid number 9.2mgKOH/g;
Subordinate phase: be cooled to 210 DEG C, drop into acid, be warming up to 235 DEG C, maintenance acid number is 50.2mgKOH/g;
Phase III: be cooled to 220 DEG C and vacuumize, vacuum tightness is-0.099MPa, and maintenance acid number is 38.5mgKOH/g.
Embodiment 2
A kind of powder coating, its raw material and mass parts thereof are in table 3;
The preparation of vibrin in powder coating:
First stage: the alcohol of formula ratio is dropped into reactor, is heated to 125 DEG C, treats that alcohol melts completely, stir with the rotating speed of 150r/min, then drop into acid and the esterifying catalyst of formula ratio, be warming up to 180 DEG C, be warming up to 250 DEG C with the heat-up rate of 5 DEG C/30min, maintain acid number 11.7mgKOH/g;
Subordinate phase: be cooled to 220 DEG C, drop into acid, be warming up to 240 DEG C, maintenance acid number is 52.3mgKOH/g;
Phase III: be cooled to 230 DEG C and vacuumize, vacuum tightness is-0.1MPa, and maintenance acid number is 40.1mgKOH/g.
Embodiment 3
A kind of powder coating, its raw material and mass parts thereof are in table 3;
The preparation of vibrin in powder coating:
First stage: the alcohol of formula ratio is dropped into reactor, is heated to 115 DEG C, treats that alcohol melts completely, stir with the rotating speed of 140r/min, then drop into acid and the esterifying catalyst of formula ratio, be warming up to 180 DEG C, be warming up to 248 DEG C with the heat-up rate of 5 DEG C/30min, maintain acid number 8.6mgKOH/g;
Subordinate phase: be cooled to 215 DEG C, drop into acid, be warming up to 237 DEG C, maintenance acid number is 54.3mgKOH/g;
Phase III: be cooled to 225 DEG C and vacuumize, vacuum tightness is-0.099MPa, and maintenance acid number is 43.5mgKOH/g.
Embodiment 4
A kind of powder coating, its raw material and mass parts thereof are in table 3;
The preparation of vibrin in powder coating:
First stage: the alcohol of formula ratio is dropped into reactor, is heated to 120 DEG C, treats that alcohol melts completely, stir with the rotating speed of 135r/min, then drop into acid and the esterifying catalyst of formula ratio, be warming up to 180 DEG C, be warming up to 245 DEG C with the heat-up rate of 5 DEG C/30min, maintain acid number 9.5mgKOH/g;
Subordinate phase: be cooled to 218 DEG C, drop into acid, be warming up to 236 DEG C, maintenance acid number is 52.6mgKOH/g;
Phase III: be cooled to 227 DEG C and vacuumize, vacuum tightness is-0.1MPa, and maintenance acid number is 42.1mgKOH/g.
The input amount of embodiment 1 ~ 4 acid, alcohol, esterifying catalyst is in table 1.
The each material input amount of table 1 (unit: g)
Vibrin A ~ the D obtained according to embodiment 1 ~ 4 method is applied on powder coating respectively.Application method is: by vibrin, solidifying agent Primid, flow agent PV88, filler barium sulfate, titanium dioxide, auxiliary agent st-yrax, optical brightener 701 by formula rate Homogeneous phase mixing, extruded by twin screw extruder again, compressing tablet, cooling, fragmentation, to sieve, be prepared into powder coating, and the mode of electrostatic spraying used for powder coating is sprayed on model.Condition of cure is 155 DEG C/15min.Each component proportion is in table 2.
Each component proportion (the unit: g) of table 2
| Group | 1 | 2 | 3 | 4 |
| Resin A | 564 | — | — | — |
| Resin B | — | 554 | — | — |
| Resin C | — | — | 568 | — |
| Resin D | — | — | — | 564 |
| Solidifying agent | 33 | 36 | 36 | 38 |
| Barium sulfate | 100 | 100 | 105 | 100 |
| Titanium dioxide | 282 | 272 | 282 | 282 |
| Flow agent | 8 | 12 | 10 | 10 |
| Auxiliary agent | 5 | 5 | 5 | 5 |
| Optical brightener | 3 | 3 | 3 | 3 |
Coating obtained for group 1 ~ 4 is carried out performance test according to GB or industry universal method.Gel time is tested according to GB/T16995-1997, and gloss is tested according to GB/T 9754-2007, impacts and tests according to GB/T 1732-1993, and levelling and weathering resistance are tested according to industry universal method.Test result is in table 3.
Table 3
Experimental result shows, and powder coating exposure rate of the present invention, far away higher than the powder coating that usual resins is made, illustrates that powder coating of the present invention has good weathering resistance.The vibrin simultaneously used in powder coating has low-temperature curing characteristic, and the application for powder coating is saved can the energy and cost.
Claims (5)
1. a powder coating, its raw material and mass parts thereof are: vibrin 550-570 part, solidifying agent 32-40 part, flow agent 8-12 part, filler 370-390 part, st-yrax 5 parts, optical brightener 3 parts.
2. powder coating as claimed in claim 1, is characterized in that: described filler be selected from barium sulfate, titanium dioxide one or both.
3. powder coating as claimed in claim 1, is characterized in that: described auxiliary agent is st-yrax.
4. powder coating as claimed in claim 1, is characterized in that: described vibrin is super weather-proof low temperature curing type vibrin, and its feed composition and mass parts thereof are: dibasic alcohol 1600-1800 part, sour 2600-2900 part, esterifying catalyst 5 parts.
5. powder coating as claimed in claim 4, it is characterized in that: described dibasic alcohol is selected from neopentyl glycol or neopentyl glycol and 1,6-hexylene glycol, the mixture of one or more in 2-ethyl-2-butyl-1,3-PD alcohol, hydroxypivalic acid DOPCP, cyclohexanedimethanol;
The mass ratio of described dibasic alcohol is: neopentyl glycol: 1,6-hexylene glycol: 2-ethyl-2-butyl-1,3-PD: cyclohexanedimethanol: hydroxypivalic acid DOPCP=70-100:0-10:0-30:0-10:0-30;
Described acid is the mixture of one or more in m-phthalic acid or m-phthalic acid and cyclohexane cyclohexanedimethanodibasic, HHPA, hexanodioic acid;
The mass ratio of described acid is: m-phthalic acid: cyclohexane cyclohexanedimethanodibasic: HHPA: hexanodioic acid 82.5-100:0-5:0-10:0-7.5;
Described catalyzer is Mono-n-butyltin.
Super weather-proof low temperature curing type vibrin is prepared by following method:
A, first stage: the alcohol of formula ratio is dropped into reactor, be heated to 110 ~ 125 DEG C, treat that alcohol melts completely, stir with the rotating speed of 130 ~ 150r/min, drop into the esterifying catalyst of acid and formula ratio again, be warming up to 180 DEG C, be warming up to 245 ~ 250 DEG C with the heat-up rate of 5 DEG C/30min, maintain acid number and be less than 12mgKOH/g;
B, subordinate phase: be cooled to 210 ~ 220 DEG C, drop into acid, be warming up to 235 ~ 240 DEG C, maintenance acid number is 50 ~ 55mgKOH/g;
C, phase III: be cooled to 220 ~ 230 DEG C and vacuumize, vacuum tightness is-0.09 ~-0.1MPa, and maintenance acid number is 38 ~ 44mgKOH/g.
The acid of described first stage input comprises the component of following mass percent: the m-phthalic acid of 90% ~ 100% and the cyclohexane cyclohexanedimethanodibasic of 0 ~ 10%, and input amount is 2200-2400 part; The acid that described subordinate phase drops into comprises the component of following mass percent: the m-phthalic acid of 75% ~ 100%, the HHPA of 0% ~ 20% and 0 ~ 15% hexanodioic acid, input amount is 350-450 part, and the amount sum of the acid that first stage and subordinate phase are dropped into is 2600-2900 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410608873.0A CN104387927A (en) | 2014-10-31 | 2014-10-31 | Powder coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410608873.0A CN104387927A (en) | 2014-10-31 | 2014-10-31 | Powder coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104387927A true CN104387927A (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410608873.0A Pending CN104387927A (en) | 2014-10-31 | 2014-10-31 | Powder coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104387927A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106750210A (en) * | 2016-12-12 | 2017-05-31 | 衡阳山泰化工有限公司 | A kind of coatings with high weatherability polyester resin and coating |
| CN106752773A (en) * | 2016-12-05 | 2017-05-31 | 安徽神剑新材料股份有限公司 | A kind of superelevation acid number powder coating polyester resin and preparation method thereof |
| CN110194928A (en) * | 2019-06-27 | 2019-09-03 | 广西福宝信科技有限公司 | It can effectively reduce the preparation method of the outdoor powdery paints of cost |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1134266A1 (en) * | 2000-03-13 | 2001-09-19 | Dsm N.V. | Powder paint composition |
| CN102174176A (en) * | 2011-03-11 | 2011-09-07 | 安徽神剑新材料股份有限公司 | Preparation method of thermosetting type pure polyester resin capable of resisting high-temperature yellowing |
| CN103755932A (en) * | 2013-12-21 | 2014-04-30 | 安徽神剑新材料股份有限公司 | Preparation method of crystalline polyester resin and application of crystalline polyester resin to powder coating |
| CN103755931A (en) * | 2013-12-21 | 2014-04-30 | 安徽神剑新材料股份有限公司 | Preparation method of coiled material polyester resin and application of coiled material polyester resin in powder coating |
-
2014
- 2014-10-31 CN CN201410608873.0A patent/CN104387927A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1134266A1 (en) * | 2000-03-13 | 2001-09-19 | Dsm N.V. | Powder paint composition |
| CN102174176A (en) * | 2011-03-11 | 2011-09-07 | 安徽神剑新材料股份有限公司 | Preparation method of thermosetting type pure polyester resin capable of resisting high-temperature yellowing |
| CN103755932A (en) * | 2013-12-21 | 2014-04-30 | 安徽神剑新材料股份有限公司 | Preparation method of crystalline polyester resin and application of crystalline polyester resin to powder coating |
| CN103755931A (en) * | 2013-12-21 | 2014-04-30 | 安徽神剑新材料股份有限公司 | Preparation method of coiled material polyester resin and application of coiled material polyester resin in powder coating |
Non-Patent Citations (1)
| Title |
|---|
| 张俊智: "《粉末涂料与涂装工艺学》", 31 March 2008, article "粉末涂料用消泡剂", pages: 147 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106752773A (en) * | 2016-12-05 | 2017-05-31 | 安徽神剑新材料股份有限公司 | A kind of superelevation acid number powder coating polyester resin and preparation method thereof |
| CN106750210A (en) * | 2016-12-12 | 2017-05-31 | 衡阳山泰化工有限公司 | A kind of coatings with high weatherability polyester resin and coating |
| CN110194928A (en) * | 2019-06-27 | 2019-09-03 | 广西福宝信科技有限公司 | It can effectively reduce the preparation method of the outdoor powdery paints of cost |
| CN110194928B (en) * | 2019-06-27 | 2020-12-01 | 广西福宝信科技有限公司 | Preparation method of outdoor powder coating capable of effectively reducing cost |
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