CN103319989A - Powder coating material and production method thereof - Google Patents
Powder coating material and production method thereof Download PDFInfo
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- CN103319989A CN103319989A CN2013101508420A CN201310150842A CN103319989A CN 103319989 A CN103319989 A CN 103319989A CN 2013101508420 A CN2013101508420 A CN 2013101508420A CN 201310150842 A CN201310150842 A CN 201310150842A CN 103319989 A CN103319989 A CN 103319989A
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Abstract
The present invention discloses a powder coating material, which comprises the following components, by mass: 50-55 parts of a modified polyester resin, 4-5 parts of TGIC, 25-30 parts of BaSO4, 0.5-0.6 part of a leveling agent, 7-8 parts of TiO2, 0.2-0.3 part of an antifoaming agent, 0.8-1 part by a scratch resistance additive, and 0.7-1 part of an adhesion additive, wherein a softening temperature range of the modified resin is 90-95 DEG C, a glass transition temperature range of the modified resin is 60-65 DEG C, the modified resin is a carboxyl-modified polyester, the TGIC is triglycidyl isocyanurate, an epoxy equivalent range of the TGIC is 154-160, a TGIC melting point range is 90-95 DEG C, the leveling agent is a P-67A leveling agent of the American estron company, a powder size range of the leveling agent is 200-300 meshes, the scratch resistance additive is PE polymeric wax, and the adhesion additive is a SA5503 adhesion additive of the LuanJietondachemical Co.,Ltd. With the powder coating material, the problem of coating shedding can be effectively solved, and mechanical property and scratch resistance are improved.
Description
Technical field
The present invention relates to a kind of coating and production method thereof, be specifically related to a kind of powder coating and production method thereof that is applicable to dull and stereotyped spraying; Belong to art of powder coatings.
Background technology
Powder coating is a kind of novel solvent 100% solid powdery coating that do not contain.Have characteristics such as solvent-free, pollution-free, recyclable, environmental protection, the saving energy and resource, high-decoration and the physical strength height of filming.
Existing coating for flat board spraying tends to occur the phenomenon of coating shedding after spraying, and the mechanical property of coating and anti-delineation performance are not very desirable.Use impression after the influence spraying greatly.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of spraying back coating difficult drop-off, and have the production method of powder coating and this powder coating of certain anti-scratch ability concurrently.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
A kind of powder coating is characterized in that, includes the component of following quality proportioning:
The scope of the softening temperature of modified resin is 90-95 degree centigrade, and the scope of its second-order transition temperature is 60 degrees centigrade to 65 degrees centigrade, and modified resin is carboxy-modified polyester; TGIC is isocyanuric acid three-glycidyl ester, and the span of its epoxy equivalent (weight) is 154-160, melting range at 90 degrees centigrade to 95; Flow agent is the P-67A flow agent of U.S. Ai Sitelun company, and its powder size scope is the 200-300 order; The scratch resistance auxiliary agent is the PE micro mist wax; Above-mentioned sticking power auxiliary agent is the SA5503 sticking power auxiliary agent of the prompt sensible company of six peaces.
Aforesaid a kind of powder coating, also include the component of following quality proportioning: 0.2-0.3 part defoamer and 0.5-0.6 part flow agent, above-mentioned defoamer are st-yrax, above-mentioned flow agent is for being the P-67A flow agent of U.S. Ai Sitelun company.
Aforesaid a kind of powder coating, also include the component of following quality proportioning: 0.8-1 part scratch resistance auxiliary agent, above-mentioned scratch resistance auxiliary agent is the PE micro mist wax.
A kind of production method of powder coating comprises following step:
(1) prepare the raw material of following component according to following proportioning:
The scope of the softening temperature of modified polyester resin is 90-95 degree centigrade, and the scope of its second-order transition temperature is 60 degrees centigrade to 65 degrees centigrade, and modified polyester resin is the 2421-5 type carboxyl modified resin of the special company of U.S.'s cyanogen; Solidifying agent is isocyanuric acid three-glycidyl ester, and the span of its epoxy equivalent (weight) is 154-160, melting range at 90 degrees centigrade to 95; Flow agent is the P-67A flow agent of U.S. Ai Sitelun company, and its powder size scope is the 200-300 order; The scratch resistance auxiliary agent is the PE micro mist wax; The sticking power auxiliary agent is the SA5503 sticking power auxiliary agent of the prompt sensible company of six peaces;
(2) raw material of said components is sent into high speed mixer and carry out pre-mixing, form Preblend after mixing is finished;
(3) above-mentioned Preblend is sent into the forcing machine hopper and carried out sending into forcing machine after the melting treatment they are uniformly dispersed, form and treat extruded stock;
(4) the above-mentioned extruded stock for the treatment of is extruded by forcing machine, the material bar that will be extruded is again suppressed by the cooling tabletting machine, forms laminar sheet stock;
(5) above-mentioned sheet stock is sent into roller mill and carry out fragmentation, form the particle of fritter;
(6) above-mentioned particle is transported to carries out pulverizingly in the air classifying powder machine, collect according to the standard of sieving, the powder after the collection is the finished product powder.
Aforesaid a kind of powder coating, also include the component of following quality proportioning: 0.2-0.3 part defoamer and 0.5-0.6 part flow agent, above-mentioned defoamer are st-yrax, and above-mentioned flow agent is the P-67A flow agent of U.S. Ai Sitelun company.
Aforesaid a kind of powder coating, also include the component of following quality proportioning: 0.8-1 part scratch resistance auxiliary agent, above-mentioned scratch resistance auxiliary agent is the PE micro mist wax.
Mixing time is 8-10 minute in the production method of aforesaid a kind of powder coating, step (2), mixing temperature 20-35 degree centigrade.
The thickness of sheet stock is 3-6mm in the production method of aforesaid a kind of powder coating, step (4).
The production method of aforesaid a kind of powder coating, the temperature of carrying out melting treatment in the step (3) is 110-120 degree centigrade.
The production method of aforesaid a kind of powder coating, the standard of sieving is the 180-200 order in the step (6).
Powder coating of the present invention can effectively solve the problem of coating shedding, and has improved mechanical property and anti-scratch ability.The present invention has high rigidity, and mechanical property is superior, characteristics such as strong adhesion, the hard and difficult drop-off of coating.
Embodiment
For the advantage of coating of the present invention can be described, we enumerate 4 embodiment and describe, and the component of these four embodiment constitutes as shown in table 1,
Table 1
The modified polyester resin that the present invention adopts is this class of carboxy-modified polyester, and the scope that requires its softening temperature is 85 degrees centigrade to 90 degrees centigrade, and the scope of its second-order transition temperature is 60 degrees centigrade to 65 degrees centigrade.
In embodiment 1 to 4, adopting modified polyester resin respectively is the 2421-5 type carboxyl modified resin of the special company of U.S.'s cyanogen.
In embodiment 1 to 4, TGIC is isocyanuric acid three-glycidyl ester, and its epoxy equivalent (weight) is 155, and fusing point is 95.
Isocyanuric acid three-glycidyl ester is a kind of polycyclic heteroaryl oxygen compound, has good heat endurance, weathering resistance, cohesiveness and excellent mechanical property.This point is that those skilled in the art are known, does not add at this and gives unnecessary details.
In embodiment 1 to 4, the sticking power auxiliary agent is the SA5503 sticking power auxiliary agent of the prompt sensible company of six peaces, and defoamer is st-yrax, and flow agent is flow agent P-67A, and the scratch resistance auxiliary agent is micro mist PE wax.
In order to obtain the product of each embodiment, we adopt following production method to produce, and step is as follows:
(1) stand-by according to the weight that the requirement of set of dispense ratio separately takes by weighing each composition by weight ratio according to embodiment 1 to 4;
(2) raw material of component is sent into high speed mixer and carry out pre-mixing, form Preblend after mixing is finished;
(3) Preblend is sent into the forcing machine hopper and carried out sending into forcing machine after the melting treatment they are uniformly dispersed, form and treat extruded stock;
(4) will treat that extruded stock extrudes by forcing machine, the material bar that will be extruded is again suppressed by the cooling tabletting machine, forms laminar sheet stock;
(5) sheet stock is sent into roller mill and carried out fragmentation, form the particle of fritter;
(6) particle is transported to carries out pulverizingly in the air classifying powder machine, collect according to the standard of sieving, the powder after the collection is the finished product powder.
Mixing time is 10 minutes in the method steps (2), 30 degrees centigrade of mixing temperatures, and the standard of sieving is 200 orders in the step (6); The temperature of carrying out melting treatment in the step (3) is 110 degrees centigrade.The thickness of sheet stock is 4mm in the step (4).
Made powder coating improves greatly in formation coating postadhesion power, has effectively solved the problem of coating shedding; Mechanical property and anti-scratch ability also increase simultaneously.
For effect of the present invention is described, we all detect the equal coating that forms of the powder coating of embodiment 1 to 4, and the powder coating of embodiment 1 to 4 adopts the heating of sealing constant temperature oven, and be 15 minutes set time, solidification value is 200 degrees centigrade, and detected result is as shown in table 2.
The performance of each embodiment of table 2
Table 2
As shown in table 2, the sticking power grade of the powder coating of embodiment 1 to 4 is 0 grade, and 0 grade is the highest ranking in the GB9286-98 testing standard.Therefore can illustrate that powder coating of the present invention has tack preferably, difficult drop-off.
Quantification indexs such as hardness, sinuousness, square impact, recoil can reflect quality and the anti-delineation performance of direct reaction of tack indirectly, and their numerical value is more big, represent tack and anti-ruled area is more strong.
More than show and described ultimate principle of the present invention, principal character and advantage.The technician of the industry should understand, and above-described embodiment does not limit the present invention in any form, and all employings are equal to replaces or technical scheme that the mode of equivalent transformation obtains, all drops in protection scope of the present invention.
Claims (10)
1. a powder coating is characterized in that, includes the component of following quality proportioning:
50-55 parts of modified polyester resins,
4-5 parts of TGIC,
BaS0
425-30 parts,
0.5-0.6 part of flow agent,
7-8 parts of TiO2,
0.2-0.3 part of defoamer,
0.8-1 part of scratch resistance auxiliary agent,
0.7-1 part of sticking power auxiliary agent;
The scope of the softening temperature of above-mentioned modified resin is 90-95 degree centigrade, and the scope of its second-order transition temperature is 60 degrees centigrade to 65 degrees centigrade, and above-mentioned modified resin is the 2421-5 type carboxyl modified resin of the special company of U.S.'s cyanogen; Above-mentioned TGIC is isocyanuric acid three-glycidyl ester, and the span of its epoxy equivalent (weight) is 154-160, melting range at 90 degrees centigrade to 95; Flow agent is the P-67A flow agent of U.S. Ai Sitelun company, and its powder size scope is the 200-300 order; Above-mentioned scratch resistance auxiliary agent is the PE micro mist wax; Above-mentioned sticking power auxiliary agent is the SA5503 sticking power auxiliary agent of the prompt sensible company of six peaces.
2. a kind of powder coating according to claim 1, it is characterized in that, the component that also includes following quality proportioning: 0.2-0.3 part defoamer and 0.5-0.6 part flow agent, above-mentioned defoamer are st-yrax, and above-mentioned flow agent is the P-67A flow agent of U.S. Ai Sitelun company.
3. a kind of powder coating according to claim 2 is characterized in that, also includes the component of following quality proportioning: 0.8-1 part scratch resistance auxiliary agent, above-mentioned scratch resistance auxiliary agent is the PE micro mist wax.
4. the production method of a powder coating is characterized in that, comprises following step:
(1), prepare the raw material of following component according to following proportioning:
50-55 parts of modified polyester resins,
4-5 parts of TGIC,
BaS0
425-30 parts,
0.5-0.6 part of flow agent,
7-8 parts of TiO2,
0.2-0.3 part of defoamer,
0.8-1 part of scratch resistance auxiliary agent,
0.7-1 part of sticking power auxiliary agent;
The scope of the softening temperature of above-mentioned modified polyester resin is 90-95 degree centigrade, and the scope of its second-order transition temperature is 60 degrees centigrade to 65 degrees centigrade, and above-mentioned modified polyester resin is the 2421-5 type carboxyl modified resin of the special company of U.S.'s cyanogen; Above-mentioned solidifying agent is isocyanuric acid three-glycidyl ester, and the span of its epoxy equivalent (weight) is 154-160, melting range at 90 degrees centigrade to 95; Flow agent is the P-67A flow agent of U.S. Ai Sitelun company, and its powder size scope is the 200-300 order; Above-mentioned scratch resistance auxiliary agent is the PE micro mist wax; Above-mentioned sticking power auxiliary agent is the SA5503 sticking power auxiliary agent of the prompt sensible company of six peaces;
(2) raw material of said components is sent into high speed mixer and carry out pre-mixing, form Preblend after mixing is finished;
(3) above-mentioned Preblend is sent into the forcing machine hopper and carried out sending into forcing machine after the melting treatment they are uniformly dispersed, form and treat extruded stock;
(4) the above-mentioned extruded stock for the treatment of is extruded by forcing machine, the material bar that will be extruded is again suppressed by the cooling tabletting machine, forms laminar sheet stock;
(5) above-mentioned sheet stock is sent into roller mill and carry out fragmentation, form the particle of fritter;
(6) above-mentioned particle is transported to carries out pulverizingly in the air classifying powder machine, collect according to the standard of sieving, the powder after the collection is the finished product powder.
5. a kind of powder coating according to claim 1, it is characterized in that, the component that also includes following quality proportioning: 0.2-0.3 part defoamer and 0.5-0.6 part flow agent, above-mentioned defoamer are st-yrax, and above-mentioned flow agent is the P-67A flow agent of U.S. Ai Sitelun company.
6. a kind of powder coating according to claim 2 is characterized in that, also includes the component of following quality proportioning: 0.8-1 part scratch resistance auxiliary agent, above-mentioned scratch resistance auxiliary agent is the PE micro mist wax.
7. the production method of a kind of powder coating according to claim 4 is characterized in that, mixing time is 8-10 minute in the above-mentioned steps (2), mixing temperature 20-35 degree centigrade.
8. the production method of a kind of powder coating according to claim 4 is characterized in that, the thickness of sheet stock is 3-6mm in the above-mentioned steps (4).
9. the production method of a kind of powder coating according to claim 4 is characterized in that, the temperature of carrying out melting treatment in the above-mentioned steps (3) is 110-120 degree centigrade.
10. the production method of a kind of powder coating according to claim 4 is characterized in that, the standard of sieving is the 180-200 order in the above-mentioned steps (6).
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| CN2013101508420A CN103319989A (en) | 2013-04-26 | 2013-04-26 | Powder coating material and production method thereof |
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| CN2013101508420A CN103319989A (en) | 2013-04-26 | 2013-04-26 | Powder coating material and production method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102516855A (en) * | 2011-12-13 | 2012-06-27 | 广东华江粉末科技有限公司 | Powdery paint for aluminum profile and preparation method thereof |
| CN102775888A (en) * | 2012-08-23 | 2012-11-14 | 广东华江粉末科技有限公司 | Sand pattern powder coating for aluminum profiles as well as preparation method and application thereof |
-
2013
- 2013-04-26 CN CN2013101508420A patent/CN103319989A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102516855A (en) * | 2011-12-13 | 2012-06-27 | 广东华江粉末科技有限公司 | Powdery paint for aluminum profile and preparation method thereof |
| CN102775888A (en) * | 2012-08-23 | 2012-11-14 | 广东华江粉末科技有限公司 | Sand pattern powder coating for aluminum profiles as well as preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 饶桐华等: "热固性聚酯粉末涂料及其固化", 《热固性树脂》, no. 2, 31 December 1995 (1995-12-31) * |
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Application publication date: 20130925 |