CN104449258A - Crocodile embossed powder coating and preparation method thereof - Google Patents
Crocodile embossed powder coating and preparation method thereof Download PDFInfo
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- CN104449258A CN104449258A CN201410655517.4A CN201410655517A CN104449258A CN 104449258 A CN104449258 A CN 104449258A CN 201410655517 A CN201410655517 A CN 201410655517A CN 104449258 A CN104449258 A CN 104449258A
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- 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
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- 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
- C09D5/032—Powdery paints characterised by a special effect of the produced film, e.g. wrinkle, pearlescence, matt finish
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses a crocodile embossed powder coating. The crocodile embossed powder coating comprises base powder and an embossing agent, wherein the base powder comprises saturated polyester resin, epoxy resin, a curing agent, an amine blocked sulfonic acid catalyst, an additive and a pigment filler, the mass ratio of the embossing agent to the base powder is 0.1-2 percent, and the embossing agent is acrylic polymer. The invention also discloses a method for preparing the crocodile embossed powder coating. The coating obtained by using the crocodile embossed powder coating provided by the invention has continuous crocodile embossed effect, and is intense in touch feeling.
Description
Technical field
The present invention relates to a kind of crocodile line powder coating, the invention still further relates to the preparation method of described crocodile line powder coating.
Background technology
The features such as powder coating has energy-conserving and environment-protective, VOC free discharges, high-decoration is good, use safety, the development of recent year powder coating technology rapidly.Powder coating, as decorative material, along with the raising of the level of people's lives, and is selected and the diversity of demand.People are no longer limited to the requirement of powder coating coating single levelling powder.The product of the various different-effects such as moire, water wave, tangerine line, mallear stria, silver powder effect and crocodile line uses all gradually and comes.There is the ornamental extremely strong powder coating of crocodile line appearance, generally acknowledged it is art of powder coatings medium and high-grade goods by people, as high-decoration crocodile line effect powder coating, not only there is splendid weathering resistance, and crocodile line attractive, decorative is strong, scratch-resistant performance is good, good weatherability, have the advantages that sense of touch is strong, it can make up coarse, the rough defect of workpiece surface, after baking, can obtain the top coat that stereoscopic sensation is very strong.Can be used for bumper, the place such as front and back backplate, side are stepped on, door and window decoration.
Summary of the invention
An object of the present invention is to provide a kind of crocodile line powder coating, and this powder coating coating has stereoscopic sensation crocodile line effect in an unbroken line by force and sense of touch is strong.
Another object of the present invention is to the preparation method that a kind of crocodile line powder coating is provided.
First object of the present invention is achieved through the following technical solutions: a kind of crocodile line powder coating, comprise end powder and sludge ice agent, powder of the described end comprises saturated polyester resin, epoxy resin, solidifying agent, amine close sulfonic acid catalyst, auxiliary agent and color stuffing, the mass ratio of described sludge ice agent and end powder is 0.1 ~ 2%, and described sludge ice agent is acrylic polymer.
Sludge ice agent of the present invention is acrylic polymer, the coating of toasting the after spray coating incompatible effect that powder coating surface produces when hot setting melting and solidification.Meanwhile, under the effect of epoxy resin, consume amine close the amine produced when sulfonic acid catalyst decomposes, promote the process of whole reflection, thus produce in an unbroken line crocodile line effect.
The mass ratio of described sludge ice agent and end powder is preferably 0.1 ~ 0.5%.
BBM, BBWK of the described acrylic polymer such as South Sea, Ningbo chemical industry, AS6B, AS01, AS13 of sky jade for asking rain chemical industry, Shanghai rope is MCC, the optical brightener 701 be full of in Zhaoqing ten, wettability promotor Fenghua 701 of Ningbo South Sea Company.As a preferred embodiment of the present invention, described acrylic polymer is that Zhaoqing ten is full of 701, the Fenghua 701 at the South Sea, Ningbo, and these products are water white transparency odorlessness particle, softening temperature 100-130 DEG C, fugitive constituent≤0.5%.
In powder of the described end, the weight part of each component is as follows:
Saturated polyester resin and epoxy resin 55 ~ 85 parts
5 ~ 15 parts, solidifying agent
Amine closes sulfonic acid catalyst 0.3 ~ 1.2 part
Auxiliary agent 1 ~ 10 part
Color stuffing 10 ~ 35 parts.
Mass ratio between described epoxy resin and saturated polyester resin is 0.001 ~ 0.1.Wherein, described saturated polyester resin can be terminal hydroxy group saturated polyester resin, also can be the mixture of terminal hydroxy group saturated polyester resin/and end carboxyl saturated polyester resin.Described epoxy resin is the CYD-014 of bisphenol A type epoxy resin, the various trade mark, 604 and 903 etc.Described solidifying agent can be tetramethoxymethylglycoluril, and also can be the mixture of tetramethoxymethylglycoluril and blocked isocyanate, blocked isocyanate can control coating gloss and lines.Described auxiliary agent comprises one or more the mixing in flow agent, defoamer, ventilating agent and wax powder etc.Described color stuffing is one or more the mixing in titanium dioxide, barium sulfate, silicon-dioxide and mica powder, and the amount of adjustment color stuffing can change viscosity and the mobility of whole coating, changes its surface tension, the size of adjustment crocodile line and stereoscopic sensation.
Object two of the present invention is achieved through the following technical solutions: the preparation method of above-mentioned crocodile line powder coating, comprises the following steps:
(1) take the component vibrin of end powder by proportioning, epoxy resin, solidifying agent, amine closes sulfonic acid catalyst, auxiliary agent and color stuffing, be placed in compounding jar, abundant mixing is also broken, and the material after fragmentation enters in forcing machine to be extruded, and compressing tablet also cools fragmentation;
(2) sheet stock after fragmentation and sludge ice agent are dry mixed obtain crocodile line powder coating.
In step of the present invention (2), also the sheet stock after fragmentation can be placed in the drawing-in device of pulverizer, described sludge ice agent is placed in and adds silicon device, pulverizer and add silicon device and open simultaneously, sheet stock feed rate 15r/s-38r/s and the speed adding silicon are 20r/s-30r/s, to be mixed evenly after obtain crocodile line powder coating.
the present invention compared with prior art has the following advantages:
(1) end of the present invention powder comprises saturated polyester resin, epoxy resin and amine and closes sulfonic acid catalyst, and the coating of toasting the after spray coating incompatible effect that powder coating surface produces when hot setting melting and solidification.Meanwhile, under the effect of epoxy resin, consume amine close the amine produced when sulfonic acid catalyst decomposes, promote the process of whole reaction, thus produce the strong crocodile line of in an unbroken line stereoscopic sensation, enough mechanical propertys and decorate properties can be kept simultaneously.
(2) the present invention adopts amine to close sulfonic acid catalyst, and this amine is closed sulfonic acid catalyst and is, its consumption difference depends on final lines effect.Amine is closed sulfonic acid catalyst and significantly can be reduced coating film-forming temperature or shorten the paint solidification time, fabulous surface property and the weathering resistance of excellence and outdoor stability.Greatly can reduce the crosslinking reaction temperature of powder coating in powder coating, compared with untight catalyzer, have fabulous stability in storage.
Embodiment
Below in conjunction with embodiment, the present invention will be described, be necessary to herein means out be following examples only for the invention will be further described, do not represent limiting the scope of the invention.Some nonessential amendments that other people make according to the present invention and adjustment still belong to protection scope of the present invention.
The epoxy resin that various company produces is selected, 604,503,903 of the such as various trade mark and CYD-014U etc., Yueyang petrochemical industry 014U in following examples.
Auxiliary agent is conven-tional adjuvants used for powder coating, comprises flow agent, ventilating agent, st-yrax, wax powder.
Flow agent: PLP-100(Korea S KS CNT) P-67(Estron Chemical)
Color stuffing: barium sulfate 8000BA barium sulfate PM228 Foshan Xin Mei Chemical Co., Ltd.
Titanium dioxide: R312(An Nada), R606(Du Pont), TR-33
Amine closes sulfonic acid catalyst: RC32-18A, French Sythron company.
Hydroxyl telechelic polyester resin: the wide state YueYi Chemical Co., Ltd. of P550, NH7805
NH7805 Guangzhou Kinte Material Technology Co., Ltd.
Terminal carboxyl polyester resin: NH9307, NH3307 Guangzhou Kinte Material Technology Co., Ltd.
Tetramethoxymethylglycoluril: 1174 Cytec
Blocked isocyanate: B1530, B1400 Yingchuang Degussa Co., Ltd
Wax powder: PE520(Clariant wax powder), WF-6010(France Cray Valley), the auspicious section in RC961(Hangzhou)
Epoxy resin: CYD-014U (Ba Ling petrochemical industry), 604(are kind inspires confidence in chemical industry), 903(South Asia)
Sludge ice agent is acrylic polymer, and as BBM, BBWK of the South Sea, Ningbo chemical industry, AS6B, AS01, AS13 of sky jade for asking rain chemical industry, Shanghai rope is MCC, the optical brightener 701 be full of in Zhaoqing ten, wettability promotor Fenghua 701 of Ningbo South Sea Company.
Micro-milling equipment of the present invention adopts the micro-milling equipment of Yantai Dong Hui powder apparatus company limited ACM-15 model, rotating speed 400 ~ 1000r/min, rotation speed of fan 2980rpm.Feeding arranges 18-38r/s, main mill rotating speed 40-45r/min.Secondary mill rotating speed 15-20r/s.Baking condition is 200 DEG C/15min.The speed adding silicon adding silicon device is 20r/s-30r/s.
embodiment 1
Hydroxyl telechelic polyester resin P550 68 parts
Tetramethoxymethylglycoluril 1,174 5.2 parts
Amine closes sulfonic acid catalyst RC 32-18A 0.4 part
Flow agent PLP-100 1.1 parts
Titanium dioxide 1 part
Barium sulfate 8000Ba 20 parts
St-yrax 0.4 part
Wax powder PE520 1.1 parts
Epoxy resin CYD-014U 1.7 parts
Black 1.1 parts of pigment 1010P
ACM pulverizing mill adds sheet stock and Fenghua 701 mass ratio 100 ﹕ 0.2 in silicon device.
(1) each for end powder raw material to be dropped in compounding jar pre-mixing 3 minutes by proportioning, two minutes, interval, again mixes 3 minutes, obtains the end powder of premix.
(2) carry out melting mixing with the end powder of twin screw extruder to premix dispersed and extrude, be then pressed into sheet stock, wherein, the temperature in forcing machine I district is 90 ~ 100 DEG C, and the temperature in IIth district is 100 ~ 110 DEG C.
(3) sheet stock is cooled the laggard row of room temperature broken, then with the grinding of ACM pulverizing mill, while add Fenghua 701 adding in silicon device, obtain the material of fine pulverizing.
(4) the material rotating screen of fine pulverizing is sized to median size 53 ~ 55 microns, obtains crocodile line powder coating.Take out crocodile line powder coating, obtain the strong crocodile line coating of stereoscopic sensation with after electrostatic gun spraying.
Carry out properties detection to gained collision bumper crocodile line powder coating, result is as follows:
embodiment 2
Hydroxyl telechelic polyester resin P550 68 parts
Tetramethoxymethylglycoluril 1,174 5.7 parts
Amine closes sulfonic acid catalyst RC 32-18A 0.4 part
Flow agent PLP-100 1.2 parts
Titanium dioxide TR-33 10 parts
Barium sulfate PM228 10 parts
St-yrax 0.4 part
Wax powder PE520 1 part
Green 0.3 part of CIBA
420 Huangs 0.5 part
Carbon black MA-100 0.3 part
Epoxy resin 604 1 parts
Terminal carboxyl polyester resin NH9307 1 part
The mass ratio that ACM pulverizing mill adds sheet stock and Fenghua 701 in silicon device is 100 ﹕ 0.4.
(1) each for end powder raw material to be dropped in compounding jar pre-mixing 3 minutes by proportioning, two minutes, interval, again mixes 3 minutes, obtains the end powder of premix.
(2) carry out melting mixing with the end powder of twin screw extruder to premix dispersed and extrude, be then pressed into sheet stock, wherein, the temperature in forcing machine I district is 90 ~ 100 DEG C, and the temperature in IIth district is 100 ~ 110 DEG C.
(3) sheet stock is cooled the laggard row of room temperature broken, then with the grinding of ACM pulverizing mill, while add Fenghua 701 adding in silicon device, obtain the material of fine pulverizing;
(4) the material rotating screen of fine pulverizing is sized to median size 59 microns, obtains crocodile line powder coating.Take out crocodile line powder coating, obtain crocodile line coating with after electrostatic gun spraying, lines is slightly flat, and gloss is higher.
Gained collision bumper crocodile line powder coating carries out properties detection, and result is as follows:
embodiment 3
Hydroxyl telechelic polyester resin P550 68 parts
Tetramethoxymethylglycoluril 1,174 4.2 parts
Amine closes sulfonic acid catalyst RC 32-18A 0.4 part
Flow agent PLP-100 1.2 parts
Barium sulfate 8000Ba 15 parts
Barium sulfate PM228 4.5 parts
St-yrax 0.4 part
Wax powder WF-6010 1 part
Wax powder RC961 0.7 part
Blocked isocyanate B1530 1.5 parts
Black 1.1 parts of V9A32
Epoxy resin 3 parts
(1) each for end powder raw material to be dropped in compounding jar pre-mixing 3 minutes by proportioning, two minutes, interval, again mixes 3 minutes, obtains the end powder of premix.
(2) carry out melting mixing with the end powder of twin screw extruder to premix dispersed and extrude, be then pressed into sheet stock, wherein, the temperature in forcing machine I district is 90 ~ 100 DEG C, and the temperature in IIth district is 100 ~ 110 DEG C.
(3) sheet stock is cooled the laggard row of room temperature broken, then with the grinding of ACM pulverizing mill, obtain the material of fine pulverizing;
(4) the material rotating screen of pulverizing is sized to median size 56 ~ 58 microns, by end powder and the AS13 after pulverizing in mass ratio 100 ﹕ 0.1 in compounding jar, mix 20min.Take out crocodile line powder coating, obtain the strong crocodile line coating of stereoscopic sensation with after electrostatic gun spraying, sense of touch is strong.
Carry out properties detection to above-mentioned gained collision bumper crocodile line powder coating, result is as follows:
embodiment 4
Hydroxyl telechelic polyester resin NH7805 73 parts
Tetramethoxymethylglycoluril 1,174 5.7 parts
Amine closes sulfonic acid catalyst RC 32-18A 0.6 part
Flow agent PLP-100 1.2 parts
Titanium dioxide TR-33 2 parts
Barium sulfate 8000Ba 13 parts
St-yrax 0.6 part
Wax powder PE520 1 part
Black 0.3 part of V9A32
4110 red 0.3
420 Huangs 0.3 part
Epoxy resin 903 2 parts
(1) each for end powder raw material to be dropped in compounding jar pre-mixing 3 minutes by proportioning, two minutes, interval, again mixes 3 minutes, obtains the end powder of premix.
(2) carry out melting mixing with the end powder of twin screw extruder to premix dispersed and extrude, be then pressed into sheet stock, wherein, the temperature in forcing machine I district is 90 ~ 100 DEG C, and the temperature in IIth district is 100 ~ 110 DEG C.
(3) sheet stock is cooled the laggard row of room temperature broken, then with the grinding of ACM pulverizing mill, obtain the material of fine pulverizing.
(4) the material rotating screen of fine pulverizing is sized to median size 59 microns, then by the end powder that obtains together with AS6B in mass ratio 100 ﹕ 0.2 at compounding jar mixing 20min.Take out mixed powder coating, obtain crocodile line coating with after electrostatic gun spraying, lines is uneven, and gloss is lower.
Gained collision bumper crocodile line powder coating carries out properties detection, and result is as follows:
embodiment 5
Hydroxyl telechelic polyester resin P550 68 parts
Tetramethoxymethylglycoluril 1,174 5.2 parts
Amine closes sulfonic acid catalyst RC 32-18A 0.4 part
Flow agent PLP-100 1.1 parts
Titanium dioxide 1 part
Barium sulfate 8000Ba 17 parts
St-yrax 0.4 part
Wax powder PE520 1.1 parts
Epoxy resin CYD-014U 4.7 parts
Black 1.1 parts of pigment 1010P
(1) each for end powder raw material to be dropped in compounding jar pre-mixing 3 minutes by proportioning, two minutes, interval, again mixes 3 minutes, obtains the end powder of premix.
(2) carry out melting mixing with the end powder of twin screw extruder to premix dispersed and extrude, be then pressed into sheet stock, wherein, the temperature in forcing machine I district is 90 ~ 100 DEG C, and the temperature in IIth district is 100 ~ 110 DEG C.
(3) sheet stock is cooled the laggard row of room temperature broken, then with the grinding of ACM pulverizing mill, obtain the material of fine pulverizing.
(4) the material rotating screen of fine pulverizing is sized to median size 56 ~ 58 microns, by end powder and the AS13 after pulverizing in mass ratio 100 ﹕ 0.2 in compounding jar, mix 20min.Take out crocodile line powder coating, obtain the strong crocodile line coating of stereoscopic sensation with after electrostatic gun spraying, sense of touch is strong.
Gained collision bumper crocodile line powder coating carries out properties detection, and result is as follows:
Claims (10)
1. a crocodile line powder coating, it is characterized in that, comprise end powder and sludge ice agent, powder of the described end comprises saturated polyester resin, epoxy resin, solidifying agent, amine close sulfonic acid catalyst, auxiliary agent and color stuffing, the mass ratio of described sludge ice agent and end powder is 0.1 ~ 2%, and described sludge ice agent is acrylic polymer.
2. crocodile line powder coating according to claim 1, is characterized in that, the mass ratio of described sludge ice agent and end powder is 0.1 ~ 0.5%.
3. crocodile line powder coating according to claim 1, is characterized in that, in powder of the described end, the weight part of each component is:
Saturated polyester resin and epoxy resin 55 ~ 85 parts
5 ~ 15 parts, solidifying agent
Amine closes sulfonic acid catalyst 0.3 ~ 1.2 part
Auxiliary agent 1 ~ 10 part
Color stuffing 10 ~ 35 parts.
4. the crocodile line powder coating according to claim 1 or 2 or 3, is characterized in that, the mass ratio between described epoxy resin and saturated polyester resin is 0.001 ~ 0.1.
5. crocodile line powder coating according to claim 4, is characterized in that, described saturated polyester resin is terminal hydroxy group saturated polyester resin, or the mixture of terminal hydroxy group saturated polyester resin and end carboxyl saturated polyester resin.
6. crocodile line powder coating according to claim 4, is characterized in that, described epoxy resin is bisphenol A type epoxy resin.
7. crocodile line powder coating according to claim 4, is characterized in that, described solidifying agent is tetramethoxymethylglycoluril, or the mixture of tetramethoxymethylglycoluril and blocked isocyanate.
8. crocodile line powder coating according to claim 4, is characterized in that, described auxiliary agent comprises one or more the mixing in flow agent, defoamer, ventilating agent and wax powder etc.; Described color stuffing is one or more the mixing in titanium dioxide, barium sulfate, silicon-dioxide and mica powder.
9. the preparation method of the crocodile line powder coating described in any one of claim 1 ~ 8, is characterized in that, comprise the following steps:
(1) take the component vibrin of end powder by proportioning, epoxy resin, solidifying agent, amine closes sulfonic acid catalyst, auxiliary agent and color stuffing, be placed in compounding jar, abundant mixing is also broken, and the material after fragmentation enters in forcing machine to be extruded, and compressing tablet also cools fragmentation;
(2) sheet stock after fragmentation and sludge ice agent are dry mixed obtain crocodile line powder coating.
10. the preparation method of crocodile line powder coating according to claim 9, it is characterized in that, in described step (2), sheet stock after fragmentation is placed in the drawing-in device of pulverizer, described sludge ice agent is placed in and adds silicon device, pulverizer and add silicon device and open simultaneously, sheet stock feed rate 15r/s ~ 38r/s and the speed adding silicon are 20r/s ~ 30r/s, to be mixed evenly after obtain crocodile line powder coating.
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| 南仁植: "《粉末涂料与涂装实用技术问答》", 30 June 2004, 化学工业出版社 * |
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