CN104861829A - Boiling-resistant epoxy polyester type powder paint and preparation method and application - Google Patents
Boiling-resistant epoxy polyester type powder paint and preparation method and application Download PDFInfo
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- CN104861829A CN104861829A CN201510223621.0A CN201510223621A CN104861829A CN 104861829 A CN104861829 A CN 104861829A CN 201510223621 A CN201510223621 A CN 201510223621A CN 104861829 A CN104861829 A CN 104861829A
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Abstract
The invention relates to a type of boiling-resistant epoxy polyester type powder paint. The boiling-resistant epoxy polyester type powder paint comprises, by weight, 30 parts to 45 parts of composite carboxyl polyester resin, 25 parts to 40 parts of composite epoxy resin, 0.02 part to 0.08 part of phase transfer catalyst, 0.5 part to 1 part of flatting agent, 0.1 part to 0.5 part of adhesion promoter, 5 parts to 30 parts of composite functional filler, and 5 parts to 10 parts of other filler and pigment. According to the paint, the defect that a traditional indoor decorative powder paint is poor in boiling resistance is overcome; the boiling resistance of the paint is improved to 24 h at 95 DEG C from 4 h at 60 DEG C, the surface of coating is not changed after a water boiling test for a long time, the level of adhesion can reach the first level of the CJ/T 120-2008 standard and reach the standard of anticorrosion powder paint, the anticorrosion performance of epoxy polyester type powder paint is improved, the paint has both excellent anticorrosion performance and excellent decoration performance, the paint is lower in cost compared with heavy anticorrosion type clinkery epoxy powder paint, has a better decorative effect and better operability, and therefore the paint can be applied to coating of indoor anticorrosion environments.
Description
Technical field
The invention belongs to powder coating technology field, particularly relate to a kind of water boiling resistance epoxy polyester type powder coating and preparation method and application.
Background technology
Powder coating is swift and violent as a large class development in recent years of coating, especially along with state treatment haze, the putting more effort of pollution, and Control and treatment will be carried out by imposing the excise to China's coating and paint industry VOC, powder coating certainly will substitute a part of paint and Coating Market repartitioned by other feature of environmental protection coating, its market share will continue to increase, this quality just requiring powder coating also will constantly progress, follow-up market demands.Current powder coating kind mainly contains several large kinds such as epoxy type, polyester type, epoxy polyester type, acrylic type.Epoxy powder coating, mainly as Functional anticorrosive paint, is applied in pipeline and other corrosion-proof ring borders; Polyester type powder paint is generally applied to open air, has both required that good weathering resistance has had again ornamental; Epoxy polyester type powder coating due to its splendid indoor decorative and cost low, be widely used in China; The powder coating of acrylic type has splendid weathering resistance, but does not reach production domesticization, its cost intensive due to acrylic resin, does not have industrialization large-scale popularization so domestic.
Along with the development of powder coating, the lifting of its quality is also imperative, epoxy polyester mixed type powder paint is most widely used at home, mainly as decorative powder coatings, but its anticorrosion poach adhesion performance is poor, reduce its working life, its antiseptic property is also very poor simultaneously, so the adhesion performance improving mixed powder coating is necessary.
By retrieval, find following two sections of patent documents relevant to patent application of the present invention:
1, a kind of water-boiling-resistant powder coating (CN 103483989A), its formula comprises: propane type epoxy resin of di phenolic group 50-60, P9335 vibrin 10-20, poly-methyl phenylic siloxane liquid 1-2, methylimidazole 2-3, red bronze 1.8-2.2, hollow glass microbead 6-8, flint clay powder 2-3, calcining andaluzite particle 2-3, tributyl phosphate 1-2, compounded mix 10-20; Coating of the present invention has following advantage: 1. water boiling resistance performance from 60 degree of conventional powder coatings within 10 hours, rise to 95 degree 25 hours, long-term poach testing coating surface is still unchanged.2. in weathering resistance test, conventional powder 500 hour can be risen to 1200 hours, coating is still without catabiosis of fading.
2, a kind of water-boiling-resistant powder coating (CN 102585671 A), its formula comprises: the vibrin of 65%-75%, the solidifying agent of 5-8%, and the kaolin of 20-30%.Also comprise the flow agent of 1-1.5, the optical brightener of 1-1.5%, the st-yrax of 0.5-1.0% and the carbon black of 0.5-1.0%.The powder coating adopting above-mentioned formula to produce, has following advantage: 1. water boiling resistance performance from 60 degree of conventional powder within 10 hours, rise to 95 degree 25 hours, long-term poach testing coating surface is still unchanged.2. in weathering resistance test, conventional powder 500 hour can be promoted to 1200 hours, coating is still without catabiosis of fading.
By contrast, there are the different of essence in patent application of the present invention and above-mentioned patent publication us.
Summary of the invention
The object of the invention is to overcome the weak point of common epoxy polyester type powder paint not water boiling resistance, a kind of epoxy polyester type powder coating and preparation method and application of water boiling resistance are provided, this powder coating improves the antiseptic property of mixed type powder, extend work-ing life, can be applied in the application of indoor anticorrosion environment.
To achieve these goals, the technical solution adopted in the present invention is as follows:
A kind of water boiling resistance epoxy polyester type powder coating, its composition component and parts by weight as follows:
And described compound carboxyl polyester resin is carboxyl-type polyester resin.
And described carboxyl-type polyester resin is the composition of vibrin SJ3D, SJ5C and SJ6B of Anhui Shenjian New Material Co., Ltd., the mass ratio of SJ3D:SJ5C:SJ6B is 10-20:10-20:5-10.
And described SJ3D is SJ3D5/5 type, the vibrin in this SJ3D5/5 type and the mass ratio of epoxy resin are 5:5; Described SJ5C is SJ5C6/4 type, and the vibrin in this SJ5C6/4 type and the mass ratio of epoxy resin are 6:4; Described SJ6B is SJ6B7/3 type, and the vibrin in this SJ6B7/3 type and the mass ratio of epoxy resin are 7:3.
And, the epoxy resin of described composite epoxy resin to be epoxy equivalent (weight) be 750-850g/eq and epoxy equivalent (weight) are the composition of the epoxy resin of 950-1050g/eq, and the mass ratio of this epoxy equivalent (weight) to be the epoxy resin of 750-850g/eq and epoxy equivalent (weight) be epoxy resin of 950-1050g/eq is 5-15:15-25.
And described phase-transfer catalyst is triethyl benzyl ammonia chloride, ethyltriphenylphosphonium bromide phosphorus, choline chloride 60, triphenyl phosphorus or Triphenylphospine oxide.
And described adhesion promoter is a kind of adhesion promoter HB168 of amido functional group; Or other color stuffings described are Rutile type Titanium Dioxide or other water boiling resistance pigment.
And described complex function filler is the composition of glass flake, mica powder, process white, described glass flake: mica powder: the mass ratio of process white is 1-5:1-5:7-23.
A preparation method for water boiling resistance epoxy polyester type powder coating as above, step is as follows:
Above-mentioned material is added to high speed mixer, after dry blending, is added to forcing machine, carry out melting, mixing, cooling, compressing tablet at extrusion temperature 80-110 DEG C, then through pulverizer pulverizing, classification, sieve, pack, obtain water boiling resistance epoxy polyester type powder coating.
Application in the application of water boiling resistance epoxy polyester type powder coating as above indoors anticorrosion environment.
Advantage of the present invention and positively effect are:
1, coating of the present invention improves the shortcoming of traditional indoor decoration type powder coating poach poor performance, make it from 60 DEG C, within 4 hours, rise to 95 DEG C, 24 hours, long-term poach testing coating surface is still unchanged, sticking power rank can reach 1 grade of CJ/T120-2008 standard, reach the standard of anti-corrosive powder paint, improve the antiseptic property of epoxy polyester type powder coating, make it that both there is excellent antiseptic property, there is again good decorate properties, to compare not only cost low with heavy antisepsis type clinkery epoxy powder coating, and there is better decorative effect and better operability, can be applied in the application of indoor anticorrosion environment.
2, coating of the present invention adopts compound carboxyl polyester resin, the vibrin of Various Functions with the use of, utilizes the difference in functionality of often kind of resin, to reach the effect of complementation, improves the antiseptic property of epoxy polyester type powder coating; SJ3D, SJ5C singularity due to its building-up process and the proportioning change of raw material monomer thereof, its water boiling resistance is greatly improved; And viscosity is higher, provide good mechanical property, anti-freezing performance; Owing to containing alcohol hydroxyl with 2 hydrogen atoms in its starting monomer, its hydrolytic resistance can improve 7-10 doubly; SJ6B melt viscosity is lower, facilitates levelling property and the saturation ratio of coating, thus improves the decorate properties of coating.
3, coating of the present invention adopts composite epoxy resin, and the viscosity ratio of CYD-014U is lower, improves the levelling property of coating, brightness, thus improves the decorate properties smeared; The NPES904H melt viscosity in South Asia is higher, and its coating has splendid impelling strength and the mechanical property such as counter-bending.
4, adopt can the phase-transfer catalyst of catalysis carboxyl for coating of the present invention, such as triethyl benzyl ammonia chloride, ethyltriphenylphosphonium bromide phosphorus, choline chloride 60, triphenyl phosphorus, Triphenylphospine oxide etc., the carboxyl generation phase transition of vibrin can be made in powder coating, accelerate the speed of reaction of the carboxyl of vibrin and the epoxide group of epoxy resin, make can at a lower temperature or high temperature shorter time reach and solidify completely, while saving the energy, also ensure that the solidification completeness of coating.
5, coating of the present invention adopts a kind of adhesion promoter of amido functional group, the functional group that it contains can provide powerful chemical bond, thus improve powder coating and ground Chemical bond, improve sticking power and improve salt spray resistance, water boiling resistance and resistance to cathodic disbonding.
6, the complex function filler that coating of the present invention adopts comprises mica powder, glass flake, several functional type filler of process white, mica powder and glass flake are laminate structure, scale flat in preservative coat is parallel in resin laminates arrangement, medium osmosis is around scale meandering slit diffusion process, glass flake and mica powder have this good labyrinth effect, permeating medium osmotic engine in different scale layer is decayed gradually, medium eases up to depth infiltration, so glass flake has anti-corrosion, permeability resistance is good, film shrinking percentage is low, thermal expansivity is little, Googol motion controller is few, the feature such as wear-resistant.
Embodiment
Below in conjunction with embodiment, the present invention is further described; Following embodiment is illustrative, is not determinate, can not limit protection scope of the present invention with following embodiment.
The reagent used in the present invention, if no special requirements, is common agents in this area; The method used in the present invention, if no special requirements, is method conventional in this area.
Other color stuffings used in the present invention are Rutile type Titanium Dioxide and other water boiling resistance pigment, and comprise C.I.PR254 bright red, C.I.PR122 is red, and C.I.PV19 is purple, and C.I.PB15:4 is blue.
Embodiment 1
A kind of water boiling resistance epoxy polyester type powder coating, its composition component and parts by weight as follows:
Wherein, the raw material of above-mentioned compound carboxyl polyester resin and number are:
SJ3D (5/5 type): 19.6 parts
SJ5C (6/4 type): 17.4 parts
SJ6B (7/3 type): 8 parts
SJ3D, SJ5C, SJ6B are Anhui Shenjian New Material Co., Ltd.'s vibrin;
The raw material of described composite epoxy resin and number are:
CYD014U (Ba Ling petrochemical industry epoxy division department): 11.5 parts;
NPES904H (South Asia epoxy (Kunshan) company limited): 23 parts;
The raw material of described compounded mix and number thereof are:
Glass flake: 1.5 parts;
Mica powder: 1 part;
Process white: 7.5 parts;
The preparation method of above-mentioned powder coating is:
Above-mentioned material is added to high speed mixer, after dry blending, is added to forcing machine, carry out melting, mixing, cooling, compressing tablet at extrusion temperature 80-110 DEG C, then through pulverizer pulverizing, classification, sieve, pack, become powder coating final product.
Embodiment 2
A kind of water boiling resistance epoxy polyester type powder coating, its composition component and parts by weight as follows:
Wherein, the raw material of compound carboxyl polyester resin and number are:
SJ3D (5/5 type): 17 parts;
SJ5C (6/4 type): 15 parts;
SJ6B (7/3 type): 7 parts;
SJ3D, SJ5C, SJ6B are Anhui Shenjian New Material Co., Ltd.'s vibrin
The raw material of above-mentioned composite epoxy resin and number are:
CYD014U (Ba Ling petrochemical industry epoxy division department): 10 parts;
NPES904H (South Asia epoxy (Kunshan) company limited: 20 parts;
The raw material of above-mentioned compounded mix and number thereof are:
Glass flake: 3 parts;
Mica powder: 2 parts;
Process white: 15 parts;
The preparation method of above-mentioned powder coating is with embodiment 1.
Embodiment 3
A kind of water boiling resistance epoxy polyester type powder coating, its composition component and parts by weight as follows:
Wherein, the raw material of above-mentioned compound carboxyl polyester resin and number are:
SJ3D (5/5 type): 14 parts;
SJ5C (6/4 type): 12.5 parts;
SJ6B (7/3 type): 6 parts;
SJ3D, SJ5C, SJ6B are Anhui Shenjian New Material Co., Ltd.'s vibrin;
The raw material of above-mentioned composite epoxy resin and number are:
CYD014U (Ba Ling petrochemical industry epoxy division department): 8.3 parts;
NPES904H (South Asia epoxy (Kunshan) company limited: 16.7 parts
The raw material of above-mentioned compounded mix and number thereof are:
Glass flake: 4.5 parts;
Mica powder: 3 parts;
Process white: 22.5 parts.
The preparation method of above-mentioned powder coating is with embodiment 1.
The performance test of water boiling resistance epoxy polyester type powder coating of the present invention:
For checking practical application effect of the present invention, concrete operations are as follows: first will by the metallic surface sandblasting of spray pipe, rear preheating 180 DEG C/15 minutes, then by powder paint obtained for embodiment from the teeth outwards, put into high temperature oven through 180 DEG C/15-20 minute baking, make it completion of cure, take out exemplar cooling.
Test according to the detection method of sticking power in CJ/T120 standard, namely exemplar is put into the water poach 24h of 95 DEG C, long-term poach testing coating surface is still unchanged, sticking power rank still can reach 1 grade of CJ/T120-2008 standard, Color adjuster is utilized to survey its aberration, its aberration is less than 1.0, and, by powder coating from 60 DEG C, within 4 hours, rise to 95 DEG C, 24 hours, reach the standard of anti-corrosive powder paint, improve the antiseptic property of polyester/epoxy powder coating, make it that both there is excellent antiseptic property, there is again good decorate properties, to compare not only cost low with heavy antisepsis type clinkery epoxy powder coating, and there is better decorative effect and better operability, therefore can be applied in the application of indoor anticorrosion environment.
Mark: 1 grade----coating can not be peeled by sled significantly;
2 grades----be less than or equal to 50% by sled from obtaining coating;
3 grades----by sled from coating be greater than 50%, but coatings go out significantly anti-pick from performance;
4 grades----coating is easy to be prized stripping into strips or piece of debris;
5 grades----coating becomes whole piece to be stripped.
Claims (10)
1. a water boiling resistance epoxy polyester type powder coating, is characterized in that: its composition component and parts by weight as follows:
2. water boiling resistance epoxy polyester type powder coating according to claim 1, is characterized in that: described compound carboxyl polyester resin is carboxyl-type polyester resin.
3. water boiling resistance epoxy polyester type powder coating according to claim 2, it is characterized in that: described carboxyl-type polyester resin is the composition of vibrin SJ3D, SJ5C and SJ6B of Anhui Shenjian New Material Co., Ltd., the mass ratio of SJ3D:SJ5C:SJ6B is 10-20:10-20:5-10.
4. water boiling resistance epoxy polyester type powder coating according to claim 3, is characterized in that: described SJ3D is SJ3D5/5 type, and the vibrin in this SJ3D 5/5 type and the mass ratio of epoxy resin are 5:5; Described SJ5C is SJ5C 6/4 type, and the vibrin in this SJ5C 6/4 type and the mass ratio of epoxy resin are 6:4; Described SJ6B is SJ6B 7/3 type, and the vibrin in this SJ6B 7/3 type and the mass ratio of epoxy resin are 7:3.
5. water boiling resistance epoxy polyester type powder coating according to claim 1, it is characterized in that: the epoxy resin of described composite epoxy resin to be epoxy equivalent (weight) be 750-850g/eq and epoxy equivalent (weight) are the composition of the epoxy resin of 950-1050g/eq, the mass ratio of this epoxy equivalent (weight) to be the epoxy resin of 750-850g/eq and epoxy equivalent (weight) be epoxy resin of 950-1050g/eq is 5-15:15-25.
6. water boiling resistance epoxy polyester type powder coating according to claim 1, is characterized in that: described phase-transfer catalyst is triethyl benzyl ammonia chloride, ethyltriphenylphosphonium bromide phosphorus, choline chloride 60, triphenyl phosphorus or Triphenylphospine oxide.
7. water boiling resistance epoxy polyester type powder coating according to claim 1, is characterized in that: described adhesion promoter is a kind of adhesion promoter HB168 of amido functional group; Or other color stuffings described are Rutile type Titanium Dioxide or other water boiling resistance pigment.
8. water boiling resistance epoxy polyester type powder coating according to claim 1, it is characterized in that: described complex function filler is the composition of glass flake, mica powder, process white, described glass flake: mica powder: the mass ratio of process white is 1-5:1-5:7-23.
9. a preparation method for the water boiling resistance epoxy polyester type powder coating as described in any one of claim 1 to 8, is characterized in that: step is as follows:
Above-mentioned material is added to high speed mixer, after dry blending, is added to forcing machine, carry out melting, mixing, cooling, compressing tablet at extrusion temperature 80-110 DEG C, then through pulverizer pulverizing, classification, sieve, pack, obtain water boiling resistance epoxy polyester type powder coating.
10. the application in the application of the indoors anticorrosion environment of the water boiling resistance epoxy polyester type powder coating as described in any one of claim 1 to 8.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106675346A (en) * | 2016-12-30 | 2017-05-17 | 安徽美佳新材料股份有限公司 | High-boiling-resistance mixed powder coating and preparation method thereof |
| CN107383994A (en) * | 2017-06-26 | 2017-11-24 | 天津翔盛新材料有限公司 | It is a kind of to be used to improve micro-capsule barium sulfate of powdery paints water boiling resistance and preparation method thereof |
| CN110467872A (en) * | 2019-04-19 | 2019-11-19 | 南京大学 | A kind of epoxy/polyester powdery paints preparation method containing glass fibre with self-healing ability |
| CN112409882A (en) * | 2020-11-13 | 2021-02-26 | 湖南太子化工涂料有限公司 | Epoxy resin and carboxyl polyester powder coating and preparation method thereof |
| CN112759720A (en) * | 2021-01-11 | 2021-05-07 | 广东锐涂精细化工有限公司 | Boiling-resistant phosphorus-containing waterborne acrylic modified polyester dispersion resin and preparation method and application thereof |
| CN114106668A (en) * | 2021-10-25 | 2022-03-01 | 安徽华辉塑业科技股份有限公司 | Novel nanoscale powder coating for airplanes |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106675346A (en) * | 2016-12-30 | 2017-05-17 | 安徽美佳新材料股份有限公司 | High-boiling-resistance mixed powder coating and preparation method thereof |
| CN107383994A (en) * | 2017-06-26 | 2017-11-24 | 天津翔盛新材料有限公司 | It is a kind of to be used to improve micro-capsule barium sulfate of powdery paints water boiling resistance and preparation method thereof |
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| CN110467872A (en) * | 2019-04-19 | 2019-11-19 | 南京大学 | A kind of epoxy/polyester powdery paints preparation method containing glass fibre with self-healing ability |
| CN112409882A (en) * | 2020-11-13 | 2021-02-26 | 湖南太子化工涂料有限公司 | Epoxy resin and carboxyl polyester powder coating and preparation method thereof |
| CN112759720A (en) * | 2021-01-11 | 2021-05-07 | 广东锐涂精细化工有限公司 | Boiling-resistant phosphorus-containing waterborne acrylic modified polyester dispersion resin and preparation method and application thereof |
| CN114106668A (en) * | 2021-10-25 | 2022-03-01 | 安徽华辉塑业科技股份有限公司 | Novel nanoscale powder coating for airplanes |
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