CN102898933B - High weather-proof and corrosion-resistant powder paint for satellite earth antenna and preparation method thereof - Google Patents
High weather-proof and corrosion-resistant powder paint for satellite earth antenna and preparation method thereof Download PDFInfo
- Publication number
- CN102898933B CN102898933B CN201210372109.9A CN201210372109A CN102898933B CN 102898933 B CN102898933 B CN 102898933B CN 201210372109 A CN201210372109 A CN 201210372109A CN 102898933 B CN102898933 B CN 102898933B
- Authority
- CN
- China
- Prior art keywords
- corrosion
- acid
- acid number
- satellite earth
- powder coating
- 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.)
- Active
Links
Landscapes
- Paints Or Removers (AREA)
Abstract
The invention discloses a high weather-proof and corrosion-resistant powder paint for a satellite earth antenna. The paint comprises, by weight, 100-150 parts of polyester resin, 20-40 parts of GMA acrylic resin, 0-5 parts of beta-hydroxyalkylamide, 0-10 parts of assistants, 0-100 parts of paddings and 0-3 parts of pigments. The invention further discloses a preparation method for the powder paint. A coating after being coated by the paint and curing is good in mechanical properties, super-weather-proof, salt mist resistant, and provided with stable low gloss area.
Description
Technical field
The present invention relates to a kind of powder coating, especially one relates to the high anti-corrosion satellite earth antenna powder coating of high durable, the invention still further relates to the preparation method of this powder coating simultaneously.
Background technology
The characteristics such as powder coating has low stain, coating process is simple, raw material availability is high, film is hard, good decorative property, use safety, are used widely in each field.In recent years, the market of the low light/glossless powdered coating of gloss≤25GU presents larger ascendant trend.The development of the high anti-corrosion satellite earth antenna special powder coating of high durable and spraying technology are risen last century, and satellite earth antenna powder coating and Technology thereof have following advantage compared with conventional low light/glossless powdered coating:
1. high durable high anti-corrosion satellite earth antenna powder coating application low gloss regional stability, qualification rate is high: the powder coating utilization ratio for paint line can reach 98%, does not need to reclaim, and avoids producing defective products.
2. the curing of coating time is short: solidification value 200 DEG C, set time only needs 10 ~ 15min.
3. the impact property of coating excellence: undertaken by the regulation of GB/T1732, the power of shock strength 50 kg cm.Positive and negatively to pass through.
4. anti-yellowing property is excellent: toast 1h in 200 DEG C of baking ovens, aberration △ E ﹤ 0.6.
5. the weathering resistance of film and neutral salt spray resistance excellent: weathering resistance: xenon lamp aging test 1000h, protect light rate >=80%, Bian Se≤2 grade; Neutral salt spray test: adopt salt-spray cabinet to detect, the temperature inside the box requires 35 ± 2 DEG C, and humidity is greater than 95%, pH value requires as 6.5-7.2, and after time setting 3000h, coatingsurface is substantially without considerable change.
But, make low light/glossless powdered coating and there are technology barriers, China's low light/glossless powdered coating development is restricted, and the performance of current low light/glossless powdered coating is unsatisfactory, and especially gloss is less than the special powder coating with satellite earth antenna of 10GU.In the powder coating of domestic low light/unglazed, what be used as spraying satellite earth antenna mainly contains urethane low brightness paint powder and polyester/TGIC low brightness paint powder.Urethane low brightness paint powder, excellent combination property, meets spraying conditions, but limits by domestic overall technology level, and hydroxy resin and solidifying agent blocked polyisocyanate rely on external import, and price comparison is expensive, is more difficult to get market accreditation.Triglycidyl group chlorinated isocyanurates (TGIC) is as the low brightness paint powder of solidifying agent, price is compared cheap economical relatively, but the starting material solidifying agent TGIC itself used due to production link has certain toxicity, even carcinogenic, prohibite in Europe and used the type powder coating; Secondly, the super weather-proof resin of the carboxyl of fixing acid number and polyprotonic acid-amine system matting agent co-extrusion delustring is needed in the making processes of TGIC system low brightness paint powder, in making processes, by chemical reaction condition restriction, melting effect, extrusion temperature, paint line storing temperature, make the fluctuation of gloss range comparatively large, and yellowing resistance can be poor, is more difficult to get the product in fixing low gloss region.Therefore, make a general survey of low light/glossless powdered coating that market occurs and all there is following shortcoming: 1. coating machine impact property after powder coating solidification, anti-yellowing property are poor; 2. the stability of gloss in the stability of gloss of film, especially powder storage process is poor; When 3. second trial experimental test being carried out to film after application, the salt spray resistance (GB/T 1771) of film and the weak effect of weathering resistance (GB/T 1865), and the overall antiseptic power of film is poor, the salt-fog test of general low brightness paint powder and weather resistance test the highest only to reach 500 hours.
Polyester/GMA acrylic matting system is not customary systems in powder coating, the finished product be difficult to obtain in the industrial production, so do not have Literature to adopt super weather-proof resin complex to prepare the special powder coating of satellite earth antenna with the scheme of the solidifying agent of GMA functional group in prior art yet.
Summary of the invention
An object of the present invention is to provide a kind of high durable high anti-corrosion satellite earth antenna special powder coating, and the good mechanical property of the coating after the solidification of this powder coating and their application, has stable low gloss district, and super weather-proof and high salt spray resistance.
Two of object of the present invention is the preparation method providing the high anti-corrosion satellite earth antenna special powder coating of above-mentioned novel high durable.
First object of the present invention is realized by following technical measures: the high anti-corrosion satellite earth antenna special powder coating of a kind of high durable, comprises the component of following weight:
The weight proportion scope of described vibrin, GMA acrylic resin and beta-hydroxy alkylamide is 70: 30: 1 ~ 90: 10: 10, is chosen as 72: 28: 4 ~ 90: 20: 10 most.
Described vibrin is the acid number of saturated carboxyl polyester resin, resin: 20 ~ 40mgKOH/g, glass transition temperature Tg: 60 ~ 70 DEG C, softening temperature: 90 ~ 120 DEG C.
As an embodiment of the invention, described saturated carboxyl polyester resin can be obtained through melt polymerization by the monomer component of following weight part:
As an embodiment of the invention, described saturated carboxyl polyester resin is prepared by the following method:
1) in a kettle., add neopentyl glycol, TriMethylolPropane(TMP), 1,4 cyclohexane dimethanol and water, be heated to fusing;
2) add terephthalic acid, m-phthalic acid, hexanodioic acid and Dibutyltin oxide, pass into nitrogen and continue to be warming up to 130 DEG C;
3) temperature is heated to 250 DEG C by 130 DEG C, 13 ~ 16mgKOH/g is reached to acid number, first time vacuumizes carries out polycondensation, when acid number reaches 4 ~ 6mgKOH/g, softening temperature 100 ~ 105 DEG C and 200 DEG C of melt viscosity 3000 ~ 3500mpa.s, add acidolysis agent and carry out acidolysis reaction, when acid number reaches 40 ~ 45mgKOH/g, second time vacuumizes and proceeds acidolysis reaction, acid number to reaction product is 20 ~ 40mgKOH/g, stopped reaction when hydroxyl value is less than 15mgKOH/g, obtains saturated carboxyl polyester resin.The acid number of this saturated carboxyl polyester resin: 20 ~ 40mgKOH/g, softening temperature: 90 ~ 120 DEG C, second-order transition temperature: 60 ~ 70 DEG C.
Described step 3) in acidolysis agent adopt terephthalic acid or m-phthalic acid.
Described GMA acrylic resin is glycidyl methacrylate acrylic resin, and softening temperature is 120 ~ 150 DEG C, epoxy equivalent (weight): 400 ~ 900 g/ep, as solidifying agent of the present invention.
The composition of GMA acrylic resin of the present invention and beta-hydroxy alkylamide is the solidifying agent in powder coating systems, for reaching better solidification effect, the weight proportion between described GMA acrylic resin and the composition of beta-hydroxy alkylamide is preferably 30: 1 ~ 10: 10.
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, barium sulfate, silicon powder, calcium carbonate, mica powder and superfine aluminium power.
Described pigment adopts weather resistant mineral dye, as: one or more during chrome yellow, iron oxide red, iron oxide black, carbon black, titanium indigo plant, ultramarine, titanium green grass or young crops and titanium are green etc.
Two of object of the present invention is realized by following technical measures, and the preparation method of the high anti-corrosion satellite earth antenna special powder coating of a kind of high durable, comprises the following steps:
(1) take saturated polyester resin, GMA acrylic resin, beta-hydroxy alkylamide, auxiliary agent, filler and pigment in proportion, be placed in compounding jar, 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 ~ 20 minute, and the preferred time is 1 ~ 15 minute, and the best time is 1 ~ 10 minute.
Twin screw extruder in described step (2) selects JFY-30 type track type twin screw extruder, 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.
The diameter of particle of extrudate in described step (3) after pulverizer is pulverized and sieved is 1 ~ 200um, preferably 1 ~ 180um, more preferably 1 ~ 170um, and diameter of particle refers to the equivalent grain size D50 of powder.
The coating process of the high anti-corrosion satellite earth antenna special powder coating of high durable provided by the invention is: with high-pressure electrostatic spray gun, be coated on surperficial treated metal base, thickness is generally 75 ~ 85um, solidification value 200 DEG C, set time is 10 ~ 15 minutes, adopts curing oven to be cured.
The present invention compared with prior art has following beneficial effect:
(1) powder coating of the present invention is polyester/GMA acrylic matting system, there is the dual property of pure saturated polyester resin and acrylic resin, there is excellent weathering resistance, salt spray resistance, anti-yellowing change and mechanical property, meet the rugged environment condition of satellite earth antenna requirement.Moreover, powder coating charging property of the present invention is good, and set time is short, and the asepsis environment-protecting raw material adopted, to environment and body harmless.
(2) powder coating of the present invention, the coating after spraying solidification meets following performance requriements:
Table 1:
From shown in table 1, the coating after the high anti-corrosion satellite earth antenna special powder paint spay-coating solidification of high durable has following characteristic:
1. coating has comparatively low-luster 0 ~ 25GU; And through adhesion test, coating is without peeling off, sticking power is excellent;
2. coating weathering superior performance, xenon lamp aging 1000h, variable color≤2 grade, gloss loss≤30%, after common low light/unglazed powder xenon lamp aging experiment 500h, coating has efflorescence, ftracture, the unusual phenomenon such as to peel off.
3. coating is from salt spray resistance, the 3000h of resistance to neutral salt spray, at employing salt-spray cabinet, the temperature inside the box requires 35 ± 2 DEG C, humidity is greater than 95%, under the experimental conditions of pH value 6.5 ~ 7.2 harshness, common low light powder general the highest salt spray resistance experiment 500h, but the salt fog resistance of the high anti-corrosion satellite earth antenna special powder coating of high durable of the present invention can reach 3000h.
(3) GMA acrylic resin provided by the invention has good film performance and cross-linking density, react solidification time and saturated polyester resin fully react, reach more excellent shock resistance.
Embodiment
The present invention will be described to enumerate a part of specific examples 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 amendments that other people make according to the present invention and adjustment still belong to protection scope of the present invention.
Embodiment 1
The present embodiment adopts vibrin to adopt acid number to be the saturated carboxyl polyester resin of 20 ~ 25mgKOH/g, and its preparation method is as follows:
1) in a kettle., add 11Kg neopentyl glycol, 0.5kg TriMethylolPropane(TMP), 1kg1,4-cyclohexanedimethanol and 3kg water, be heated to fusing;
2) add 26kg terephthalic acid, 12.5kg m-phthalic acid, 0.5kg hexanodioic acid and 0.1kg dibutyl tin oxide successively, pass into nitrogen and continue to be warming up to 130 DEG C;
3) temperature is heated to 250 DEG C by 130 DEG C, 13mgKOH/g is reached to acid number, first time vacuumizes carries out polycondensation, when acid number reaches 4mgKOH/g, softening temperature 100 DEG C, 200 DEG C of melt viscosity 3000mpa.s, adds acidolysis agent m-phthalic acid 0.03kg, carry out acidolysis reaction, when acid number reaches 40mgKOH/g, second time vacuumizes carries out acidolysis reaction, and the acid number to reaction product is 25mgKOH/g, stopped reaction when hydroxyl value is less than 15mgKOH/g, obtains saturated carboxyl polyester resin.The acid number of this saturated carboxyl polyester resin is at 25mgKOH/g, and softening temperature is 101 DEG C, and second-order transition temperature is at about 50 DEG C.
The high anti-corrosion satellite earth antenna special powder coating of high durable, its component and weight are:
Preparation method:
A () takes saturated carboxyl polyester resin in proportion, GMA acrylic resin, beta-hydroxy alkylamide, titanium dioxide, barium sulfate, esters of acrylic acid flow agent PLP-100, st-yrax, pigment are placed in compounding jar, fully mixing broken 1 ~ 10 minute;
B the material after () fragmentation enters JFY-30 type track type twin screw extruder and extrudes; Forcing machine heating and temperature control is at 80 ~ 120 DEG C, and extrusion temperature one district is 80 ~ 100 DEG C, and 2nd district are 80 ~ 120 DEG C.
(c) extrude after material be ground into through compressing tablet, cooling, pulverizer the powder that particle diameter (equivalent grain size D50) is 30 ~ 45 um, then packaging and get final product after screening.
Film performance after the product painting solidification of gained is as follows:
| Condition of cure | Gloss | Impact | Outward appearance |
| 200℃/10min | 5GU | 50Kgcm, positive and negatively passes through | Flat smooth |
Embodiment 2
The present embodiment adopts vibrin to adopt acid number to be the saturated carboxyl polyester resin of 30 ~ 35mgKOH/g, and its preparation method is as follows:
1) in a kettle., add 14kg neopentyl glycol, 1.0kg TriMethylolPropane(TMP), 2.0kg1,4-cyclohexanedimethanol and 4.0 water, be heated to fusing;
2) add 30kg terephthalic acid, 11kg m-phthalic acid, 1.0 hexanodioic acids and 0.5kg dibutyl tin oxide successively, pass into nitrogen and continue to be warming up to 130 DEG C;
3) temperature is heated to 250 DEG C by 130 DEG C, 15mgKOH/g is reached to acid number, first time vacuumizes carries out polycondensation, when acid number reaches 5mgKOH/g, softening temperature 103 DEG C, 200 DEG C of melt viscosity 3200mpa.s, add acidolysis agent m-phthalic acid 0.5kg and carry out acidolysis reaction, when acid number reaches 42mgKOH/g, second time vacuumizes acidolysis reaction, acid number to reaction product is 30 ~ 35mgKOH/g, and stopped reaction when hydroxyl value is less than 15mgKOH/g, obtains saturated carboxyl polyester resin.The acid number of this saturated carboxyl polyester resin is at 30 ~ 35mgKOH/g, and softening temperature is 110 DEG C, and second-order transition temperature is at 65 DEG C.
The high anti-corrosion satellite earth antenna special powder coating of high durable, its component and weight are:
Preparation method:
A () takes saturated carboxyl polyester resin, GMA acrylic resin, beta-hydroxy alkylamide, titanium dioxide, barium sulfate, esters of acrylic acid flow agent PLP-100, st-yrax, pigment and promotor in proportion and is placed in compounding jar, fully mixing also broken 4 ~ 15 minutes;
B the material after () fragmentation enters JFY-30 type track type twin screw extruder and extrudes; Forcing machine heating and temperature control is at 100 ~ 110 DEG C, and extrusion temperature one district is 85 ~ 95 DEG C, and 2nd district are 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 45 um, then packaging and get final product after screening.
Film performance after the product painting solidification of gained is as follows:
| Condition of cure | Gloss | Impact | Outward appearance |
| 200℃/12min | 9GU | 50Kgcm, positive and negatively passes through | Flat smooth |
Embodiment 3
The present embodiment adopts vibrin to adopt acid number to be the saturated carboxyl polyester resin of 32mgKOH/g, and its preparation method is as follows:
1) in a kettle., add 14kg neopentyl glycol, 1.0kg TriMethylolPropane(TMP), 2.0kg1,4-cyclohexanedimethanol and 4.0 water, be heated to fusing;
2) add 30kg terephthalic acid, 11kg m-phthalic acid, 1.0 hexanodioic acids and 0.5kg dibutyl tin oxide successively, pass into nitrogen and continue to be warming up to 130 DEG C;
3) temperature is heated to 250 DEG C by 130 DEG C, 15mgKOH/g is reached to acid number, first time vacuumizes carries out polycondensation, when acid number reaches 5mgKOH/g, softening temperature 103 DEG C, 200 DEG C of melt viscosity 3200mpa.s, add acidolysis agent m-phthalic acid 0.5kg and carry out acidolysis reaction, when acid number reaches 42mgKOH/g, second time vacuumizes acidolysis reaction, acid number to reaction product is 32mgKOH/g, and stopped reaction when hydroxyl value is less than 15mgKOH/g, obtains saturated carboxyl polyester resin.The acid number of this saturated carboxyl polyester resin is at 32mgKOH/g, and softening temperature is 110 DEG C, and second-order transition temperature is at 65 DEG C.
The high anti-corrosion satellite earth antenna special powder coating of high durable, its component and weight are:
Preparation method:
A () takes saturated carboxyl polyester resin, GMA acrylic resin, beta-hydroxy alkylamide, titanium dioxide, barium sulfate, esters of acrylic acid flow agent PLP-588, st-yrax, pigment and promotor in proportion and is placed in compounding jar, fully mixing also broken 6 minutes;
B the material after () fragmentation enters JFY-30 type track type twin screw extruder and extrudes; Forcing machine heating and temperature control is at 100 ~ 120 DEG C, and extrusion temperature one district is 85 ~ 95 DEG C, and 2nd district are 105 ~ 120 DEG C.
(c) extrude after material be ground into through compressing tablet, cooling, pulverizer the powder that particle diameter (equivalent grain size D50) is 45 um, then packaging and get final product after screening.
Film performance after the product painting solidification of gained is as follows:
| Condition of cure | Gloss | Impact | Outward appearance |
| 200℃/20min | 15GU | 50Kgcm, positive and negatively passes through | Flat smooth |
Embodiment 4:
The present embodiment adopts vibrin to adopt acid number to be the saturated carboxyl polyester resin of 28mgKOH/g, and its preparation method is as follows:
1) in a kettle., add 14kg neopentyl glycol, 1.0kg TriMethylolPropane(TMP), 2.0kg1,4-cyclohexanedimethanol and 4.0kg water, be heated to fusing;
2) add 22kg terephthalic acid, 11kg m-phthalic acid, 1.0 hexanodioic acids and 0.5kg dibutyl tin oxide successively, pass into nitrogen and continue to be warming up to 135 DEG C;
3) temperature is heated to 250 DEG C by 130 DEG C, 15mgKOH/g is reached to acid number, first time vacuumizes carries out polycondensation, when acid number reaches 5mgKOH/g, softening temperature 103 DEG C, 200 DEG C of melt viscosity 3200mpa.s, add acidolysis agent m-phthalic acid 0.4kg and carry out acidolysis reaction, when acid number reaches 40mgKOH/g, second time vacuumizes acidolysis reaction, acid number to reaction product is 28mgKOH/g, and stopped reaction when hydroxyl value is less than 15mgKOH/g, obtains saturated carboxyl polyester resin.The acid number of this saturated carboxyl polyester resin is at 28mgKOH/g, and softening temperature is 110 DEG C, and second-order transition temperature is at 45 DEG C.
The high anti-corrosion satellite earth antenna special powder coating of high durable, its component and weight are:
Preparation method:
A () takes saturated carboxyl polyester resin, GMA acrylic resin, beta-hydroxy alkylamide, titanium dioxide, barium sulfate, esters of acrylic acid flow agent PLP-100, st-yrax, pigment and promotor in proportion and is placed in compounding jar, fully mixing also broken 12 minutes;
B the material after () fragmentation enters JFY-30 type track type twin screw extruder and extrudes; Forcing machine heating and temperature control is at 100 ~ 110 DEG C, and extrusion temperature one district is 85 ~ 95 DEG C, and 2nd district are 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 40 um, then packaging and get final product after screening.
Film performance after the product painting solidification of gained is as follows:
| Condition of cure | Gloss | Impact | Outward appearance |
| 200℃/12min | 19GU | 50Kgcm, positive and negatively passes through | Flat smooth |
Embodiment 5:
The present embodiment adopts vibrin to adopt acid number to be the saturated carboxyl polyester resin of 36mgKOH/g, and its preparation method is as follows:
1) in a kettle., add 14kg neopentyl glycol, 1.0kg TriMethylolPropane(TMP), 2.0kg1,4-cyclohexanedimethanol and 4.0kg water, be heated to fusing;
2) add 33kg terephthalic acid, 10kg m-phthalic acid, 1.0 hexanodioic acids and 0.5kg dibutyl tin oxide successively, pass into nitrogen and continue to be warming up to 130 DEG C;
3) temperature is heated to 250 DEG C by 132 DEG C, 16mgKOH/g is reached to acid number, first time vacuumizes carries out polycondensation, when acid number reaches 5mgKOH/g, softening temperature 103 DEG C, 200 DEG C of melt viscosity 3200mpa.s, add acidolysis agent m-phthalic acid 0.6kg and carry out acidolysis reaction, when acid number reaches 45mgKOH/g, second time vacuumizes acidolysis reaction, acid number to reaction product is 36mgKOH/g, and stopped reaction when hydroxyl value is less than 15mgKOH/g, obtains saturated carboxyl polyester resin.The acid number of this saturated carboxyl polyester resin is at 36mgKOH/g, and softening temperature is 116 DEG C, and second-order transition temperature is at 48 DEG C.
The high anti-corrosion satellite earth antenna special powder coating of high durable, its component and weight are:
Preparation method:
A () takes saturated carboxyl polyester resin in proportion, GMA acrylic resin, beta-hydroxy alkylamide, titanium dioxide, barium sulfate, esters of acrylic acid flow agent PLP-588, st-yrax, pigment are placed in compounding jar, fully mixing broken 4 ~ 15 minutes;
B the material after () fragmentation enters JFY-30 type track type twin screw extruder and extrudes; Forcing machine heating and temperature control is at 100 ~ 110 DEG C, and extrusion temperature one district is 85 ~ 95 DEG C, and 2nd district are 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 39 um, then packaging and get final product after screening.
Film performance after the product painting solidification of gained is as follows:
| Condition of cure | Gloss | Impact | Outward appearance |
| 200℃/16min | 25GU | 50Kgcm, positive and negatively passes through | Flat smooth |
In above embodiment 1 ~ 5, GMA acrylic resin is glycidyl methacrylate acrylic resin, and softening temperature is 120 ~ 150 DEG C, epoxy equivalent (weight): 400 ~ 900 g/ep.Acidolysis agent also can adopt terephthalic acid.Filler adopts the mixture of one or more in titanium dioxide, barium sulfate, silicon powder, calcium carbonate, mica powder, superfine aluminium power.Pigment adopts weather resistant mineral dye, as: the mixture of one or more during chrome yellow, iron oxide red, iron oxide black, carbon black, titanium indigo plant, ultramarine, titanium green grass or young crops, titanium are green etc.
Claims (7)
1. the high anti-corrosion satellite earth antenna special powder coating of high durable, is characterized in that, comprise the component of following weight:
100 ~ 160 parts, vibrin
GMA acrylic resin 20 ~ 40 parts
Beta-hydroxy alkylamide 0 ~ 5 part
Auxiliary agent 0 ~ 10 part
Filler 0 ~ 100 part
Pigment 0 ~ 3 part;
Described vibrin is saturated carboxyl polyester resin, and its acid number is 20 ~ 40 mgKOH/g, and glass transition temperature Tg is 60 ~ 70 DEG C, and softening temperature is 90 ~ 120 DEG C; Described saturated carboxyl polyester resin is obtained through melt polymerization by the monomer component of following weight part:
Terephthalic acid 26 ~ 32 parts
M-phthalic acid 10.5 ~ 12 parts
Hexanodioic acid 0.5 ~ 2.2 part
Neopentyl glycol 12 ~ 20 parts
1,4 cyclohexane dimethanol 1 ~ 3 part
TriMethylolPropane(TMP) 0.5 ~ 1.5 part
Dibutyltin oxide 0 ~ 1 part
3 ~ 5 parts, water
Acidolysis agent 0 ~ 1 part;
Described saturated carboxyl polyester resin is prepared by the following method:
1) in a kettle., add neopentyl glycol, TriMethylolPropane(TMP), 1,4 cyclohexane dimethanol and water, be heated to fusing;
2) add terephthalic acid, m-phthalic acid, hexanodioic acid and Dibutyltin oxide, pass into nitrogen and continue to be warming up to 130 DEG C;
3) temperature is heated to 250 DEG C by 130 DEG C, 13 ~ 16mgKOH/g is reached to acid number, first time vacuumizes carries out polycondensation, when acid number reaches 4 ~ 6mgKOH/g, softening temperature 100 ~ 105 DEG C and 200 DEG C of melt viscosity 3000 ~ 3500mpa.s, add acidolysis agent and carry out acidolysis reaction, when acid number reaches 40 ~ 45mgKOH/g, second time vacuumizes and proceeds acidolysis reaction, acid number to reaction product is 20 ~ 40mgKOH/g, stopped reaction when hydroxyl value is less than 15mgKOH/g, obtains saturated carboxyl polyester resin.
2. the high anti-corrosion satellite earth antenna special powder coating of high durable according to claim 1, it is characterized in that, the weight proportion scope of described vibrin, GMA acrylic resin and beta-hydroxy alkylamide is 70: 30: 1 ~ 90: 10: 10.
3. the high anti-corrosion satellite earth antenna special powder coating of high durable according to claim 1, it is characterized in that, described acidolysis agent is terephthalic acid or m-phthalic acid.
4. the high anti-corrosion satellite earth antenna special powder coating of the high durable according to claim 1 or 2 or 3, it is characterized in that, described GMA acrylic resin is glycidyl methacrylate acrylic resin, and softening temperature is 120 ~ 150 DEG C, and epoxy equivalent (weight) is 400 ~ 900 g/ep.
5. the high anti-corrosion satellite earth antenna special powder coating of high durable according to claim 4, it 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, barium sulfate, silicon powder, calcium carbonate, mica powder and superfine aluminium power; Described pigment be the blue or green and titanium of chrome yellow, iron oxide red, iron oxide black, carbon black, titanium indigo plant, ultramarine, titanium green in one or more.
6. a preparation method for the high anti-corrosion satellite earth antenna special powder coating of high durable according to claim 5, is characterized in that, comprise the following steps:
(1) in a kettle., add neopentyl glycol, TriMethylolPropane(TMP), 1,4 cyclohexane dimethanol and water, be heated to fusing;
(2) add terephthalic acid, m-phthalic acid, hexanodioic acid and Dibutyltin oxide, pass into nitrogen and continue to be warming up to 130 DEG C;
(3) temperature is heated to 250 DEG C by 130 DEG C, 13 ~ 16mgKOH/g is reached to acid number, first time vacuumizes carries out polycondensation, when acid number reaches 4 ~ 6mgKOH/g, softening temperature 100 ~ 105 DEG C and 200 DEG C of melt viscosity 3000 ~ 3500mpa.s, add acidolysis agent and carry out acidolysis reaction, when acid number reaches 40 ~ 45mgKOH/g, second time vacuumizes and proceeds acidolysis reaction, acid number to reaction product is 20 ~ 40mgKOH/g, stopped reaction when hydroxyl value is less than 15mgKOH/g, obtains saturated carboxyl polyester resin;
(4) take saturated carboxyl polyester resin, GMA acrylic resin, beta-hydroxy alkylamide, auxiliary agent, filler and pigment in proportion, be placed in compounding jar, fully mixing is also broken, obtains mixing premix material;
(5) mix in premix material feeding twin screw extruder and extrude;
(6) material after extruding is packed after tabletting machine, cooling, pulverizing, screening.
7. the preparation method of the high anti-corrosion satellite earth antenna special powder coating of high durable according to claim 6, is characterized in that, the time that in described step (4), each component mixing is also broken is 1 ~ 20 minute; One district's extrusion temperature of the twin screw extruder in described step (5) is 80 ~ 100 DEG C, and two district's extrusion temperatures are 80 ~ 120 DEG C; The diameter of particle of extrudate in described step (6) after pulverizer is pulverized and sieved is 1 ~ 200um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210372109.9A CN102898933B (en) | 2012-09-28 | 2012-09-28 | High weather-proof and corrosion-resistant powder paint for satellite earth antenna and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210372109.9A CN102898933B (en) | 2012-09-28 | 2012-09-28 | High weather-proof and corrosion-resistant powder paint for satellite earth antenna and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102898933A CN102898933A (en) | 2013-01-30 |
| CN102898933B true CN102898933B (en) | 2015-07-08 |
Family
ID=47571431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210372109.9A Active CN102898933B (en) | 2012-09-28 | 2012-09-28 | High weather-proof and corrosion-resistant powder paint for satellite earth antenna and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102898933B (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104119783A (en) * | 2014-06-27 | 2014-10-29 | 南京屏湖粉末材料有限公司 | Weather-resistant powder coating |
| CN104046214A (en) * | 2014-07-07 | 2014-09-17 | 广东华江粉末科技有限公司 | Energy-saving environment-friendly low-gloss polyester acrylate powder paint for aluminum profile and preparation method thereof |
| CN104448265B (en) * | 2014-11-19 | 2016-06-22 | 广州擎天材料科技有限公司 | Thermal transfer polyester resin for powder coating that a kind of low-temperature setting is energy-saving and preparation method thereof |
| CN104558561B (en) * | 2015-01-12 | 2018-04-13 | 衡阳山泰化工有限公司 | A kind of special low acid number saturated polyester resin of indoor type extinction powder coating |
| CN104910659B (en) * | 2015-05-11 | 2018-05-11 | 广德美涂士化工有限公司 | A kind of weatherability modified polyester resin powdery paints |
| CN105038526B (en) * | 2015-07-06 | 2017-09-29 | 广东华江粉末科技有限公司 | A kind of aluminium section bar 3 D stereo Wood-grain-imitating powdery paints and preparation method thereof |
| 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 |
| CN105419580A (en) * | 2015-12-16 | 2016-03-23 | 芜湖市宝艺游乐科技设备有限公司 | Rose scent type polyester powder coating and preparation method thereof |
| CN106570959A (en) * | 2016-11-01 | 2017-04-19 | 通化师范学院 | Intelligent anti-theft electric control door-lock system based on GSM module |
| CN106634263A (en) * | 2016-11-22 | 2017-05-10 | 天长市金陵电子有限责任公司 | Thermosetting type static spraying powder coating and a preparing method thereof |
| CN106634478A (en) * | 2016-11-22 | 2017-05-10 | 天长市金陵电子有限责任公司 | Special high-weatherability coating for electrostatic spraying |
| CN106752742A (en) * | 2016-12-07 | 2017-05-31 | 德阳力久云智知识产权运营有限公司 | A kind of salt spray resistance anti-corrosive powder paint and preparation method thereof |
| CN108034340A (en) * | 2017-12-08 | 2018-05-15 | 安徽美佳新材料股份有限公司 | High-weatherability auto shield powdery paints and preparation method thereof |
| CN109354983A (en) * | 2018-10-22 | 2019-02-19 | 苏州绮联粉体涂料有限公司 | A kind of pure polyester superfine grit powder coating and preparation method thereof |
| CN109971319A (en) * | 2019-04-19 | 2019-07-05 | 南京大学 | A kind of weather-proof anticorrosion polyester type powder paint containing glass fibre and clay mineral |
| CN110117355B (en) * | 2019-06-12 | 2021-06-15 | 黄山嘉恒科技有限公司 | Polyester resin with excellent neutral salt spray resistance for TG IC powder coating and preparation method thereof |
| CN110591515A (en) * | 2019-08-27 | 2019-12-20 | 东莞华彩新材料有限公司 | Outdoor ultralow-temperature curing extinction powder coating |
| CN112708332A (en) * | 2020-12-29 | 2021-04-27 | 老虎表面技术新材料（苏州）有限公司 | Weather-resistant high-temperature-resistant powder coating composition |
| CN114163905B (en) * | 2021-12-24 | 2023-02-14 | 老虎表面技术新材料（清远）有限公司 | Powder coating composition and coating thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1081699A (en) * | 1992-07-27 | 1994-02-09 | 罗姆和哈斯公司 | But the lipid acid hydroxyalkyl amide is as the stablizer of the coreaction of powder coating |
| CN101205293A (en) * | 2007-12-14 | 2008-06-25 | 广州擎天实业有限公司 | Mixed polyester resin for matte powder coatings and preparation thereof |
| CN101215442A (en) * | 2008-01-10 | 2008-07-09 | 李新春 | Weather-resisting powder coating composition |
| CN101787239A (en) * | 2009-12-31 | 2010-07-28 | 广东银洋树脂有限公司 | Method for preparing environment-friendly powder coating resin |
| CN101985538A (en) * | 2010-10-27 | 2011-03-16 | 中国电器科学研究院 | Environment-friendly low-temperature curing pure polyester powder paint and preparation method thereof |
-
2012
- 2012-09-28 CN CN201210372109.9A patent/CN102898933B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1081699A (en) * | 1992-07-27 | 1994-02-09 | 罗姆和哈斯公司 | But the lipid acid hydroxyalkyl amide is as the stablizer of the coreaction of powder coating |
| CN101205293A (en) * | 2007-12-14 | 2008-06-25 | 广州擎天实业有限公司 | Mixed polyester resin for matte powder coatings and preparation thereof |
| CN101215442A (en) * | 2008-01-10 | 2008-07-09 | 李新春 | Weather-resisting powder coating composition |
| CN101787239A (en) * | 2009-12-31 | 2010-07-28 | 广东银洋树脂有限公司 | Method for preparing environment-friendly powder coating resin |
| CN101985538A (en) * | 2010-10-27 | 2011-03-16 | 中国电器科学研究院 | Environment-friendly low-temperature curing pure polyester powder paint and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102898933A (en) | 2013-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102898933B (en) | High weather-proof and corrosion-resistant powder paint for satellite earth antenna 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 | |
| CN103483988B (en) | A kind of water boiling resistance grit powder coating being applicable to powder on aluminium section bar corner and preparation method thereof | |
| CN104449268A (en) | Special low-temperature cured body powder coating for aluminum wheel of automobile and preparation method thereof | |
| CN102898924A (en) | Automobile aluminium wheel hub powdery paint suitable for bonding counterbalances and preparation method thereof | |
| CN101985538A (en) | Environment-friendly low-temperature curing pure polyester powder paint and preparation method thereof | |
| CN102942837B (en) | Polyester resin for one-step method low light powder paint and preparation method of polyester resin | |
| US9868813B2 (en) | Thermosetting durable powder coating composition | |
| CN101608085A (en) | Weather-resisting powder coating | |
| CN103739830B (en) | Polyester resin for TGIC cured high-toughness powder coating and preparation method thereof | |
| CN102408819A (en) | Novel environment-friendly flat coiled material pre-painting powder coating and preparation method thereof | |
| CN105273583B (en) | A kind of aluminium dedicated weather-proof Pearlescent powder paint and preparation method thereof | |
| CN103131308A (en) | High-low acid value bi-component end carboxyl polyester resin composition for super-weather-proof dry-blending extinction powder coatings and application of the same | |
| CN102408550A (en) | Carboxyl-terminated polyester resin for super weather-proof powder coating and preparation method thereof | |
| CN109306232B (en) | Powder coating polyester resin for motor vehicle exhaust pipe and preparation method thereof | |
| CN110804164B (en) | Polyester resin with excellent boiling resistance and salt fog resistance for low-temperature curing type powder and preparation method thereof | |
| CN101747826A (en) | Low temperature curing epoxy low-gloss powder coating and preparation method thereof | |
| CN107011774A (en) | A kind of high rigidity powder paint compositions and its production and use | |
| CN112048235B (en) | Long-acting weather-resistant chlorine salt corrosion-resistant polyester powder coating and preparation method thereof | |
| CN105273582A (en) | Weather-proof power coating special for communication equipment and preparation method of weather-proof power coating | |
| CN109735214A (en) | A kind of matt weather-resistance powder coatings and preparation method | |
| CN108690453A (en) | One kind having high reflectance weather-resistance powder coatings and preparation method thereof | |
| CN103555191A (en) | Double-component decorative finishing coat for agricultural machinery as well as preparation method thereof | |
| CN102464937B (en) | Powder coating for polyurethane-modified polyester automobile finish and preparation method thereof | |
| CN106085157B (en) | A kind of method for preparing cryogenic curing resin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGZHOU KINTE MATERIAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: QINGTIAN INDUSTRY CO., LTD., GUANGZHOU Effective date: 20150422 Free format text: FORMER OWNER: CHINA NATIONAL ELECTRIC APPARATUS RESEARCH INSTITUTE Effective date: 20150422 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20150422 Address after: Shiling Town, Huadu District, Guangzhou City Yufeng Road No. 16 Applicant after: Guangzhou Kinte Industrial Co., Ltd. Address before: Shiling Town, Huadu District, Guangzhou City, Guangdong province 510860 Yufeng Road No. 16 Applicant before: Qingtian Industry Co., Ltd., Guangzhou Applicant before: China National Electric Apparatus Research Institute Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: No.16, Yufeng Road, Shiling Town, Huadu District, Guangzhou Patentee before: GUANGZHOU KINTE INDUSTRIAL Co.,Ltd. |
|
| CP03 | Change of name, title or address |