CN103980787A - Acrylic acid transparent powdery paint for glazing and preparation method thereof - Google Patents
Acrylic acid transparent powdery paint for glazing and preparation method thereof Download PDFInfo
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- CN103980787A CN103980787A CN201410182056.3A CN201410182056A CN103980787A CN 103980787 A CN103980787 A CN 103980787A CN 201410182056 A CN201410182056 A CN 201410182056A CN 103980787 A CN103980787 A CN 103980787A
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- transparent powder
- vinylformic acid
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Abstract
The invention relates to an acrylic acid transparent powdery paint for glazing. The powdery paint includes resin, a levelling agent, a curing agent and benzoin; wherein the resin is a methacrylic acid copolymer, the levelling agent is a pure levelling agent without fillers and the curing agent is dodecanedioic acid. Through improvement of the formula and the preparation method, the acrylic acid transparent powdery paint is strong in surface adhesive force and is good in acid resistance, alkali resistance, salt spray resistance and heat and humidity resistance.
Description
Technical field
the present invention relates to powder coating technical field, be specifically related to the making method of a kind of Lacquer finish vinylformic acid transparent powder paint.
Background technology
Powder coating substitutes organic solvent type coating just gradually with advantages such as its economy, environmental protection, efficient and performance are remarkable, become the important development direction in coating industry, high-clarity powder coating also becomes the face cap optical coating of environmental protection more progressively substituting organic clear lacquer.Emerging a kind of vinylformic acid transparent powder paint has excellent weathering resistance at present, there is good decorate properties, there is good attached power and wettability with oil paint, there is good prospect of the application, but because it is subject to the restriction of formula, production environment, processing condition etc., there is defect, all Shortcomings of its surface adhesion force, resistance to acids and bases, salt fog resistance and humidity resistance always.
Summary of the invention
it is strong that the technical problem to be solved in the present invention is to provide a kind of surface adhesion force, and the good Lacquer finish of resistance to acids and bases, salt fog resistance and humidity resistance vinylformic acid transparent powder paint.
For solving the problems of the technologies described above, the present invention relates to a kind of Lacquer finish vinylformic acid transparent powder paint, comprise resin, flow agent, solidifying agent and st-yrax, described resin is Sipacril 2739OF, described flow agent is the pure flow agent that does not contain filler, and described solidifying agent is dodecanedioic acid.
General flow agent is the low-molecular-weight polymkeric substance that contains acrylate, the thick liquid that outward appearance is oily, in the time producing powder, cannot measure or use.This thick liquid will be adsorbed in the pulverulent filler of solid, and becoming solid can use, but these solid matters are opaque, and adding membership and greatly affecting the transparency of powder of they, affects outward appearance.So we adopt the not pure flow agent containing filler.
As a preferred embodiment of the present invention, the weight percent of described Sipacril 2739OF is 75-85%, the weight percent of described pure flow agent is 0.6-1.2%, and the weight percent of described dodecanedioic acid is 10-20%, and described benzoic weight percent is 0.2-0.5%.
As a preferred embodiment of the present invention, in described transparent powder paint, Sipacril 2739OF: dodecanedioic acid: pure flow agent: st-yrax=83.9:15:0.6:0.5.
As a preferred embodiment of the present invention, in described transparent powder paint, Sipacril 2739OF: dodecanedioic acid: pure flow agent: st-yrax=81.7:17:0.9:0.4.
The present invention provides a kind of method of preparing above-mentioned Lacquer finish vinylformic acid transparent powder paint simultaneously, comprises the steps:
A. coating raw material is weighed, weight percent is Sipacril 2739OF: 75-85%, pure flow agent: 0.6-1.2%, dodecanedioic acid: 10-20%, st-yrax: 0.2-0.5%;
B. above-mentioned coating raw material is put into and in mixing tank, carried out pre-mixing;
C. the coating raw material after pre-mixing is dropped in scuffing of cylinder bore and carries out blanking, then melt extrude through forcing machine, then carry out compressing tablet fragmentation;
D. the coating raw material after step C is dropped in scuffing of cylinder bore and carries out blanking at this, then melt extrude through forcing machine, then carry out compressing tablet fragmentation;
E. the coating after step D is sent into pulverizer and pulverize, coating is thoroughly pulverized, become powder coating;
F. powder coating is dropped into sifter and screen, the powder coating after screening is packed, and finished product completes.
As a preferred embodiment of the present invention, described sifter is vibratory screening apparatus; Described pulverizer is pulverising mill.Production technique of the present invention adopts the method for extruding for twice, and the powder sharpness of producing is like this than the conventional height of once extruding.
As a preferred embodiment of the present invention, the storage temperature of described coating raw material and finished product is below 25 DEG C; The production temperature of described coating material production step B-F is below 25 DEG C.This kind of coating softening temperature is very low, easily caking.So we are in the time of plant design, the workshop of the production plant of this product (comprising raw material and finished goods warehouse) and other powder coating of production all independently separates, and refrigerator refrigeration is all installed, and keeps Workshop Production environment below 25 DEG C.
Beneficial effect of the present invention is: by the improvement to formula and production technique, the vinylformic acid transparent powder paint that the present invention produces has stronger surface adhesion force, and has good resistance to acids and bases, salt fog resistance and humidity resistance.Apply vinylformic acid transparent powder paint of the present invention at sheet metal surface and test, sticking power test is the grid that the plate surface after coating is drawn 100 2mm, then sticky once with adhesive tape, then adhesive tape is torn, and 100 dices do not come off, and are just qualified.
Experimental result is as follows:
1, Sipacril 2739OF: dodecanedioic acid: pure flow agent: st-yrax=83.9:15:0.6:0.5
2, Sipacril 2739OF: dodecanedioic acid: pure flow agent: st-yrax=81.7:17:0.9:0.4
Brief description of the drawings
Fig. 1 is the making schema of Lacquer finish of the present invention vinylformic acid transparent powder paint.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The present invention relates to a kind of Lacquer finish vinylformic acid transparent powder paint, comprise resin, flow agent, solidifying agent and st-yrax, described resin is Sipacril 2739OF, and described flow agent is the pure flow agent that does not contain filler, and described solidifying agent is dodecanedioic acid.The weight percent of described Sipacril 2739OF is 75-85%, and the weight percent of described pure flow agent is 0.6-1.2%, and the weight percent of described dodecanedioic acid is 10-20%, and described benzoic weight percent is 0.2-0.5%.
Referring to Fig. 1, the present invention provides a kind of method of preparing above-mentioned Lacquer finish vinylformic acid transparent powder paint simultaneously, comprises the steps:
A. coating raw material is weighed, weight percent is Sipacril 2739OF: 75-85%, pure flow agent: 0.6-1.2%, dodecanedioic acid: 10-20%, st-yrax: 0.2-0.5%;
B. above-mentioned coating raw material is put into and in mixing tank, carried out pre-mixing;
C. the coating raw material after pre-mixing is dropped in scuffing of cylinder bore and carries out blanking, then melt extrude through forcing machine, then carry out compressing tablet fragmentation;
D. the coating raw material after step C is dropped in scuffing of cylinder bore and carries out blanking at this, then melt extrude through forcing machine, then carry out compressing tablet fragmentation;
E. the coating after step D is sent into pulverizer and pulverize, pulverizer is pulverising mill, and coating is thoroughly pulverized, and becomes powder coating;
F. powder coating is dropped into sifter and screen, sifter is vibratory screening apparatus, and the powder coating after screening is packed, and finished product completes.
General flow agent is the low-molecular-weight polymkeric substance that contains acrylate, the thick liquid that outward appearance is oily, in the time producing powder, cannot measure or use.This thick liquid will be adsorbed in the pulverulent filler of solid, and becoming solid can use, but these solid matters are opaque, and adding membership and greatly affecting the transparency of powder of they, affects outward appearance.So we adopt the not pure flow agent containing filler.
Production technique of the present invention adopts the method for extruding for twice, and the powder sharpness of producing is like this than the conventional height of once extruding.
As a preferred embodiment of the present invention, the storage temperature of described coating raw material and finished product is below 25 DEG C; The production temperature of described coating material production step B-F is below 25 DEG C.This kind of coating softening temperature is very low, easily caking.So we are in the time of plant design, the workshop of the production plant of this product (comprising raw material and finished goods warehouse) and other powder coating of production all independently separates, and refrigerator refrigeration is all installed, and keeps Workshop Production environment below 25 DEG C.
Aspect the coating of automobile wheel hub surface Lacquer finish, the vinylformic acid transparent powder paint of invention to be tested, experimental result is as follows:
1, Sipacril 2739OF: dodecanedioic acid: pure flow agent: st-yrax=83.9:15:0.6:0.5
2, Sipacril 2739OF: dodecanedioic acid: pure flow agent: st-yrax=81.7:17:0.9:0.4
Be more than preferred embodiments of the present invention, but protection scope of the present invention is not limited to this.Any those of ordinary skill in the art are in the disclosed technical scope of the present invention, and the conversion of expecting without creative work or replacement, within all should being encompassed in protection scope of the present invention.Therefore protection scope of the present invention should be as the criterion with the protection domain that claim was limited.
Claims (8)
1. a Lacquer finish vinylformic acid transparent powder paint, is characterized in that: comprise resin, flow agent, solidifying agent and st-yrax, described resin is Sipacril 2739OF, and described flow agent is the pure flow agent that does not contain filler, and described solidifying agent is dodecanedioic acid.
2. a kind of Lacquer finish vinylformic acid transparent powder paint as claimed in claim 1, it is characterized in that: the weight percent of described Sipacril 2739OF is 75-85%, the weight percent of described pure flow agent is 0.6-1.2%, the weight percent of described dodecanedioic acid is 10-20%, and described benzoic weight percent is 0.2-0.5%.
3. a kind of Lacquer finish vinylformic acid transparent powder paint as claimed in claim 2, is characterized in that: in described transparent powder paint, and Sipacril 2739OF: dodecanedioic acid: pure flow agent: st-yrax=83.9:15:0.6:0.5.
4. a kind of Lacquer finish vinylformic acid transparent powder paint as claimed in claim 3, is characterized in that: in described transparent powder paint, and Sipacril 2739OF: dodecanedioic acid: pure flow agent: st-yrax=81.7:17:0.9:0.4.
5. a preparation method for vinylformic acid transparent powder paint for the Lacquer finish described in claim 1-4 any one, is characterized in that: comprise the steps
Coating raw material is weighed, and weight percent is Sipacril 2739OF: 75-85%, pure flow agent: 0.6-1.2%, dodecanedioic acid: 10-20%, st-yrax: 0.2-0.5%;
Above-mentioned coating raw material is put into and in mixing tank, carried out pre-mixing;
Coating raw material after pre-mixing is dropped in scuffing of cylinder bore and carries out blanking, then melt extrude through forcing machine, then carry out compressing tablet fragmentation;
Coating raw material after step C is dropped in scuffing of cylinder bore and carries out blanking at this, then melt extrude through forcing machine, then carry out compressing tablet fragmentation;
Coating after step D is sent into pulverizer and carry out Crushing of Ultrafine, coating is thoroughly pulverized, become the powder coating with certain thickness particle diameter;
Powder coating is dropped into sifter and screen, the powder coating after screening is packed, and finished product completes.
6. the preparation method of vinylformic acid transparent powder paint for a kind of Lacquer finish as claimed in claim 5, is characterized in that: described sifter is vibratory screening apparatus.
7. a kind of Lacquer finish vinylformic acid transparent powder paint as claimed in claim 6, is characterized in that: the storage temperature of described coating raw material and finished product is below 25 DEG C.
8. a kind of Lacquer finish vinylformic acid transparent powder paint as claimed in claim 6, is characterized in that: the production temperature of described coating material production step B-F is below 25 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410182056.3A CN103980787A (en) | 2014-04-30 | 2014-04-30 | Acrylic acid transparent powdery paint for glazing and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410182056.3A CN103980787A (en) | 2014-04-30 | 2014-04-30 | Acrylic acid transparent powdery paint for glazing and preparation method thereof |
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| CN103980787A true CN103980787A (en) | 2014-08-13 |
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| CN201410182056.3A Pending CN103980787A (en) | 2014-04-30 | 2014-04-30 | Acrylic acid transparent powdery paint for glazing and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105176331A (en) * | 2015-09-25 | 2015-12-23 | 科威嘉粉末涂料（天津）有限公司 | Acrylic acid and silicon-aluminum composite high-heat-dissipation powder coating for engine |
| CN106752192A (en) * | 2016-12-30 | 2017-05-31 | 安徽真信涂料有限公司 | A kind of outdoor metal guardrail proprietary powder coatingses |
| CN107652816A (en) * | 2017-10-26 | 2018-02-02 | 浙江华彩新材料有限公司 | A kind of Flame Retardant Powder Coatings and preparation method thereof |
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| US4988767A (en) * | 1989-09-18 | 1991-01-29 | Ppg Industries, Inc. | Thermosetting powder coating composition containing a mixture of low Tg and high Tg polymers with acid functional groups |
| CN1154392A (en) * | 1995-10-25 | 1997-07-16 | 希巴特殊化学控股公司 | Powder coating |
| JP2001026738A (en) * | 1999-07-16 | 2001-01-30 | Dainippon Ink & Chem Inc | Powder coating composition for aluminum wheel |
| CN1528842A (en) * | 2003-10-14 | 2004-09-15 | 广州擎天粉末涂料实业有限公司 | Transparent acrylic powder coating |
| CN1944478A (en) * | 2006-10-24 | 2007-04-11 | 河北工业大学 | Process for preparing acrylate resin for powder paint |
| CN101260271A (en) * | 2008-04-14 | 2008-09-10 | 佛山市顺德区广业化工实业有限公司 | Transparent cover light powder paint composition and preparation method thereof |
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2014
- 2014-04-30 CN CN201410182056.3A patent/CN103980787A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4988767A (en) * | 1989-09-18 | 1991-01-29 | Ppg Industries, Inc. | Thermosetting powder coating composition containing a mixture of low Tg and high Tg polymers with acid functional groups |
| CN1154392A (en) * | 1995-10-25 | 1997-07-16 | 希巴特殊化学控股公司 | Powder coating |
| JP2001026738A (en) * | 1999-07-16 | 2001-01-30 | Dainippon Ink & Chem Inc | Powder coating composition for aluminum wheel |
| CN1528842A (en) * | 2003-10-14 | 2004-09-15 | 广州擎天粉末涂料实业有限公司 | Transparent acrylic powder coating |
| CN1944478A (en) * | 2006-10-24 | 2007-04-11 | 河北工业大学 | Process for preparing acrylate resin for powder paint |
| CN101260271A (en) * | 2008-04-14 | 2008-09-10 | 佛山市顺德区广业化工实业有限公司 | Transparent cover light powder paint composition and preparation method thereof |
Non-Patent Citations (1)
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| 何德泉: "丙烯酸透明粉末涂料在汽车车身罩光方面的应用", 《电镀与涂饰》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105176331A (en) * | 2015-09-25 | 2015-12-23 | 科威嘉粉末涂料（天津）有限公司 | Acrylic acid and silicon-aluminum composite high-heat-dissipation powder coating for engine |
| CN106752192A (en) * | 2016-12-30 | 2017-05-31 | 安徽真信涂料有限公司 | A kind of outdoor metal guardrail proprietary powder coatingses |
| CN107652816A (en) * | 2017-10-26 | 2018-02-02 | 浙江华彩新材料有限公司 | A kind of Flame Retardant Powder Coatings and preparation method thereof |
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Application publication date: 20140813 |