CN101654592A - Method for preparing high-temperature resistant rustproof paint - Google Patents
Method for preparing high-temperature resistant rustproof paint Download PDFInfo
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- CN101654592A CN101654592A CN200810030206A CN200810030206A CN101654592A CN 101654592 A CN101654592 A CN 101654592A CN 200810030206 A CN200810030206 A CN 200810030206A CN 200810030206 A CN200810030206 A CN 200810030206A CN 101654592 A CN101654592 A CN 101654592A
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Abstract
The invention discloses a method for preparing high-temperature resistant rustproof paint, which is characterized in that the method mainly adopts special-type engineering plastic as main resin; in addition, the method adopts an efficient and FDA permeable rustproof material; and an assistant and a solvent are matched with and added into the engineering plastic and the rustproof material to prepare the high-temperature resistant rustproof paint according to a certain proportion. The paint has the following main properties that: 1, the heat-resistant grade is high, namely the paint can be continuously used for 20 years at the temperature of 180 DEG C and used for 4 to 5 years at the temperature of 200 DEG C, and other thermoplastic engineering plastics cannot be compared with the paint; 2,the fire resistance is good, namely the paint has self fire resistance and low smoke dispersion property and can reach American UL 94V-0 standard without adding inorganic fire retardants such as halogen and the like; and 3, the chemical resistance is good, namely the paint has good chemical resistance and is acid-resistant, alkali-resistant and corrosion-resistant.
Description
[technical field]
The invention belongs to the chemical field preparation method for coating, specific to the invention of the antirust technology of high-temperature resistant coating.
[background technology]
Coating is most economical, the impregnating material of most convenient.Rust-inhibiting paint has extremely important status in the metal protection system.According to data, the whole world has 10% metal be corroded every year, because of metal is corroded the financial loss that causes up to 7,000 hundred million dollars, exceeds the loss that any natural disaster is brought.Rust-inhibiting paint is used the most general in various rush-resisting materials, but, the exploitation integral level of China's rust proof paint lags behind western developed country, still based on traditional rush-resisting materials such as red lead, chromic salt, iron pigments, and red lead is seriously polluted because of it, injury to human body is very big, is eliminated in succession by many countries at present and bans use of, and aluminium triphosphate is failed a large amount of the use because of price reasons.At present, state is extrapolated, and a series of non-poisonous antirust pigments can be compared with chromic salt, but because of price is too high, domesticly seldom introduce, so China's rust proof paint expects that already a kind of nontoxic, excellent performance and cheap rush-resisting material promote the integral level of rust proof paint product.
In high temperature resistant non-viscous paint field, limited the use of a lot of rush-resisting materials again, the use of some iron tablewares, all not antirust because of paint coating, be corroded and shorten work-ing life, as: iron kitchen range, coffee machine heating plate, chicken oven heat-generating pipe, electric cooker heat-generating disc etc. need high temperature resistant and and the contacted metal apparatus of food.These apparatus all need to use a kind of high temperature resistant and will pass through SGS, FDA, the rust proof paint of each examination criteria such as PAHS.
At this problem, we are in the past only high temperature resistant and can not be antirust or can only be antirust and coating non-refractory organically combines, develop a kind of both can be high temperature resistant, the environmental protection coating material that is applied in the tableware industry that again can highly effective antirust.This type coating high-efficiency environment friendly, manufacture craft is simple, easy construction has not only increased aesthetic feeling to process conditions, also brings the Practical Performance that overflows, also indirect minimizing the financial loss that causes because of metallic corrosion in global every year.
[summary of the invention]
The purpose of present technique invention is to overcome the weak point that existing antirust high-temperature resistant coating technology exists, and a kind of environmental protection, practicality, heatproof, antirust high-performance coating preparation method are provided.
For achieving the above object, the present invention takes following technical scheme: a kind of fire resistant resin (consider from environmental protection and aspect of performance, mainly adopt special engineering plastics to be used as main resin material); Want a kind of efficient and rush-resisting material that can detect by FDA in addition, two kinds of collocation by a certain percentage add auxiliary agent, solvents are made high-temperature resistant rustproof paint.
Polyethersulfone resin is the general name that contains sulfone key polymkeric substance, and the polyethersulfone intramolecularly does not contain dihydroxyphenyl propane.Britain ICI company developed polyethersulfone at first in 1972, and salient features has:
The temperature classification height: can use continuously 20 years under 180 degrees centigrade, can use 4-5 under 200 degrees centigrade, other thermoplastic engineering plastics can't be by comparison;
Good flame resistance: have self flame retardant resistance, low smog diffustivity, need just can not reach U.S. UL 94V-O standard with inorganic combustion inhibitors such as halogen;
Chemical resistant properties is good: chemical proofing is good, the acid-fast alkali-proof corrosion.
Based on above performance, select this resin to be applied on the dietetic food, as making tool housing, syringe, contact lens sterilizer, surgical operation with the parts of the handle crash equipment of various instruments, respirator part, foodstuff production equipment pipe valve, civil aviaton's tableware etc.
So the present invention is only beyond doubt to this resin choice.Impregnating material is an example with the zinc phosphate of food grade just, and good rust-proof effect is arranged, and the two reasonable combination is got up, and is a kind of more satisfactory heatproof rust proof paint.
[embodiment]
At first polyethersulfone resin (pressed powder) is dissolved into liquid resin: get 40 parts of NMP (methyl-2-pyrrolidone), 20 parts of DMF (dimethyl formamide), 20 parts of MEK (butanone) stir, the polyethersulfone resin that adds 20 parts while stirring, conventional dispersion machine middling speed was disperseed 40-60 minute, transparent to dissolving fully, we are referred to as polyethersulfone resin solution; After the dissolving, polyethersulfone resin solution adds zinc phosphate fully, filler, pigment, solvent high speed dispersion 15 minutes, with basket type sand mill grind 2-3 hour to fineness less than 10 microns;
Below in conjunction with specific embodiment the present invention is specifically described.
Specific embodiment 1
Polyethersulfone resin solution: 70%
Zinc phosphate (food grade): 3%
Barium sulfate: 12%
Pimelinketone: 8%
Black slurry: 6.5%
Auxiliary agent: 0.5%
The manufacture method of present embodiment is:
1) dispersion resin and auxiliary agent, with polyethersulfone resin solution and auxiliary agent, zinc phosphate, pimelinketone drops into conventional dispersion machine respectively to carry out middling speed and disperses to stir in 15 minutes;
2) blending dispersion is thrown into other color filler respectively in the shredder of original dispersion resin and auxiliary agent, makes them carry out high speed jointly and grind to disperse, ground 2-3 hour at a high speed, up to fineness less than 10 microns;
3) make high-temperature resistant rustproof paint.
The high-temperature resistant rustproof paint that this example draws, zinc phosphate account for 3% of total prescription, adopt the tinplate ground to spray this coating, 380 ℃ of bakings 15 minutes, and film coated surface is smooth, 300 ℃ of continuous dry combustion methods 2 hours, the no variable color of filming.SaltSprayTest instrument salt-fog resistant test, 5% AG sodium-chlor, 80 hours no changes.
Specific embodiment 2
Polyethersulfone resin solution: 70%
Zinc phosphate (food grade): 5%
Barium sulfate: 12%
Pimelinketone: 8%
Black slurry: 6.5%
Auxiliary agent: 0.5%
The manufacture method of present embodiment is:
1) dispersion resin and auxiliary agent: with polyethersulfone resin solution and auxiliary agent, zinc phosphate, pimelinketone drops into conventional dispersion machine respectively to carry out middling speed and disperses to stir in 15 minutes;
2) blending dispersion: other color filler is thrown into 1 respectively) in the shredder of dispersion resin and auxiliary agent, make them carry out high speed jointly and grind and disperse, high speed was ground 2-3 hour, up to fineness less than 10 microns;
3) make high-temperature resistant rustproof paint.
The high-temperature resistant rustproof paint that this example draws, zinc phosphate account for 3% of total prescription, and the tinplate ground sprays this coating, 380 ℃ of bakings 15 minutes, and film coated surface is smooth, 300 ℃ of continuous dry combustion methods 2 hours, the no variable color of filming.SaltSprayTest instrument salt-fog resistant test, 5% AG sodium-chlor, 100 hours no changes.
Specific embodiment 3
Polyethersulfone resin solution: 70%
Zinc phosphate (food grade): 8%
Barium sulfate: 12%
Pimelinketone: 8%
Black slurry: 6.5%
Auxiliary agent: 0.5%
The manufacture method of present embodiment is:
1) dispersion resin and auxiliary agent: polyethersulfone resin solution and auxiliary agent, zinc phosphate, pimelinketone are dropped into conventional dispersion machine respectively carry out middling speed and disperse to stir in 15 minutes;
2) blending dispersion: other color filler is thrown into 1 respectively) in the shredder of dispersion resin and auxiliary agent, make them carry out high speed jointly and grind and disperse, high speed was ground 2-3 hour, up to fineness less than 10 microns;
3) make high-temperature resistant rustproof paint.
The high-temperature resistant rustproof paint that present embodiment draws, zinc phosphate account for 3% of total prescription, and the tinplate ground sprays this coating, 380 ℃ of storing temperatures, and 15 minutes, film coated surface was smooth, 300 ℃ of continuous dry combustion methods 2 hours, the no variable color of filming.Salt-fog resistant test, 5% AG sodium-chlor, 120 hours no changes.
Show through repetition test, the content of zinc phosphate in this prescription between 5-8% the time salt spray resistance effect better, greater than 80 hours, the no change of filming; High temperature resistant aspect, 300 ℃ of continuous dry combustion methods 2 hours, the no any variation of filming, smooth surface is the loss of gloss pool not.
The physicochemical property of high-temperature resistant rustproof paint:
| Test item | Technical indicator |
| Paint film appearance | Smooth smooth |
| Time of drying | 380 ℃ 15 minutes |
| Viscosity | 38 seconds/26 ℃ |
| Proportion | ??1.05-1.15 |
| Solid content | ??25％ |
| Thickness | ??15-20UM |
| Gloss (60 ° of glossometers) | ??25-40° |
| Hardness (Mitsubishi's pencil) | ??2H |
| Temperature tolerance (300 ℃ of 2h) | Nondiscoloration |
| Sticking power (hundred lattice, 3M adhesive tape) | 0 grade |
| Salt spray resistance (5% AG sodium-chlor) | 100 hours no changes |
Claims (4)
1, a kind of preparation method of high-temperature resistant rustproof paint, its main raw is: the zinc phosphate of a kind of polyethersulfone resin and a kind of food grade
2, a kind of polyethersulfone resin according to claim 1, it is good particularly in: temperature classification height, good flame resistance, chemical resistant properties
3, according to claim 1 and 2 described a kind of high-temperature resistant rustproof paints, its preparation method is: polyethersulfone resin (pressed powder) is dissolved into liquid resin, fully after the dissolving, polyethersulfone resin solution adds zinc phosphate, filler, pigment, solvent high speed dispersion 15 minutes, with basket type sand mill grind 2-3 hour to fineness less than 10 microns.
4, the physicochemical property of above-mentioned high-temperature resistant rustproof paint is:
。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810030206A CN101654592A (en) | 2008-08-18 | 2008-08-18 | Method for preparing high-temperature resistant rustproof paint |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810030206A CN101654592A (en) | 2008-08-18 | 2008-08-18 | Method for preparing high-temperature resistant rustproof paint |
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| CN101654592A true CN101654592A (en) | 2010-02-24 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104449349A (en) * | 2014-11-28 | 2015-03-25 | 安徽省金盾涂料有限责任公司 | Thin-film high-temperature resistant anti-corrosion coating |
| CN104673085A (en) * | 2015-03-09 | 2015-06-03 | 溧阳市佳禾电子材料有限公司 | Heat-resistant enameled wire insulating varnish and preparation method thereof |
| CN106318197A (en) * | 2016-08-24 | 2017-01-11 | 江门市安诺特炊具制造有限公司 | Improved heat resistance and corrosion resistance thermal spray coating and preparing method thereof |
-
2008
- 2008-08-18 CN CN200810030206A patent/CN101654592A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104449349A (en) * | 2014-11-28 | 2015-03-25 | 安徽省金盾涂料有限责任公司 | Thin-film high-temperature resistant anti-corrosion coating |
| CN104673085A (en) * | 2015-03-09 | 2015-06-03 | 溧阳市佳禾电子材料有限公司 | Heat-resistant enameled wire insulating varnish and preparation method thereof |
| CN104673085B (en) * | 2015-03-09 | 2017-07-28 | 溧阳市佳禾电子材料有限公司 | A kind of heat resistant type enamelled wire insulated paint and preparation method thereof |
| CN106318197A (en) * | 2016-08-24 | 2017-01-11 | 江门市安诺特炊具制造有限公司 | Improved heat resistance and corrosion resistance thermal spray coating and preparing method thereof |
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Application publication date: 20100224 |