CN102924985B - Smoke-free and tasteless inorganic nano high-temperature resistant anti-corrosive wear-resistant paint and preparation method thereof - Google Patents
Smoke-free and tasteless inorganic nano high-temperature resistant anti-corrosive wear-resistant paint and preparation method thereof Download PDFInfo
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- CN102924985B CN102924985B CN201210430682.0A CN201210430682A CN102924985B CN 102924985 B CN102924985 B CN 102924985B CN 201210430682 A CN201210430682 A CN 201210430682A CN 102924985 B CN102924985 B CN 102924985B
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Abstract
The invention discloses a kind of smoke-free and tasteless inorganic nano high-temperature resistant anti-corrosive wear-resistant paint and preparation method thereof, described wear-resistant paint comprises inorganic nano resin and mixed solvent, and described inorganic nano resin is respectively silica dispersion 30%-90%, silane 10%-70%, pH value regulator 0.1%-10% and vulkacit H MT0.01%-1% by component and weight proportion and forms; Described mixed solvent is made up of high temperature resistant environment-protective pigment, filler, ethanol and water.First the Nano silicon dioxide dispersion of different-grain diameter is mixed, after adding the vulkacit H MT insulation reaction of metering after adding pH value regulator, mixed silanes isothermal reaction, obtain inorganic nano resin; Again the inorganic nano resin prepared is mixed with mixed solvent, carry out after carrying out high speed dispersion with high speed dispersor grinding and obtain smoke-free and tasteless inorganic nano high-temperature resistant anti-corrosive wear-resistant paint.Its smoke-free and tasteless and environmental protection, nondiscoloration, have high-wearing feature and good antiseptic and rustproof function.
Description
Technical field
The invention belongs to field of material technology, particularly a kind of smoke-free and tasteless inorganic nano high-temperature resistant anti-corrosive wear-resistant paint and preparation method thereof.
Background technology
Wear-resistant paint is mainly used in engineering machinery, the high-temperature anticorrosion of automobile exhaust pipe and wear-resistant protection; Anticorrosion, the fire-resisting protection of steel construction; Wear-resisting, fire-retardant, the flameproof protection of subway, tunnel decoration plate; Heat-resisting, the corrosionproof protection of gas and hot water interchanger, boiler heat exchanger; Wear-resisting, anticorrosion, the fire-resisting protection of the burner contacted with naked light, fireplace, kitchen tools.
CN101503598A discloses a kind of solvent type organosilicon open fire burning-resistant coating, can be resistance to 500 ~ 800 degree.Naked light burns and does not smolder, and does the basic nondiscoloration of blackwash, but cannot do light color and bright-colored, meeting xanthochromia, and under being in high temperature for a long time, organic resin still can decompose some pungent poisonous peculiar smell of generation.Toughness is improved by mica powder in coating, prevent high temperature from ftractureing, wherein the mica powder amount of accounting for is up to 50%, due to mica powder when temperature will start slow decomposition, thickness swelling higher than when 450 DEG C, more than 600 DEG C can be sharply weightless, almost decompose completely to when 900 DEG C, therefore it is high temperature resistant to rely on mica powder, substantially can only heatproof less than 600 degree for a long time, otherwise coating can ftracture in efflorescence.
CN100587017C discloses a kind of solvent type organic silicon thermostable paint and production method thereof, can high temperature resistant 450 ~ 500 degree, but organic resin pyrolytic decomposition still can generating portion to be pungent poisonous peculiar smell, and understands variable color.Black and the black few color of silver can only be done, light color and bright-colored cannot be done.
The preparation of CN102030906A discloses a kind of high temperature resistant heavy anti-corrosion paint organic-machine hybrid resin, the high temperature that ability is certain, but fail to express ability how much high temperature, cannot for a long time 600 ~ 800 degree of uses.Meanwhile, owing to have employed a large amount of epoxy radicals silicone hydride monomer in formula, very easily xanthochromia when more than 280 degree.
CN102351497A discloses a kind of fire resistant environment-friendly nano modified inorganic coating and preparation method and application; ability 700 ~ 1000 degree of high temperature; but thickness must just have good high-temperature resistant anti-corrosive performance up to 45 ~ 80um; and only alloy parts have excellent high preservative effect; to common iron and steel component protection poor effect; simultaneously; make the solidifying agent of potassium silicate coating by interpolation aluminium triphosphate and zinc powder in coating; coating can be caused to store validity period extremely short; when configuring coating; must use as early as possible, otherwise will gelling scrap, cause damage.
CN102190940A discloses a kind of high-temperature-resistant corrosion-resistant coating for engineering machinery tail gas pipe, can only heatproof 500 degree, and can only do black, can produce a large amount of pungent peculiar smell under high temperature.
CN102167570A discloses a kind of composite Nano high-temperature coatings and preparation method thereof and using method, process cumbersome, and the time is long, ageing just must can enter next technique in 7 ~ 10 days.And must be High Temperature Pre process 1 ~ 2h at 400 ~ 500 degree, consume mass energy, thickness must just have better resistance to temp effect by 30 ~ more than 50um simultaneously.
CN101857753A discloses a kind of protective system, coating process and application, is applicable to heat exchanger, heatproof less than 600 degree.But make base-material owing to adopting Silicone modified acryl's resin, easy xanthochromia under high temperature, silver-colored black can only be done, simultaneously coating is that aluminium powder by adding up to 35% is anticorrosion to rate melting two-step film forming under realizing high temperature, and because a large amount of aluminium powders at high temperature can soften melting, therefore this coating is without hot hardness, wear resistance extreme difference under high temperature, be adopt special ultrasonic vibration to carry out application, compared with common process, client uses extremely inconvenient simultaneously.And coating also adopts the poisonous trimethylbenzene of part to make solvent, and pole not environmentally.
The high-temperature resistant coating of above organic or inorganic, when scumbling, high-temperature resistant anti-corrosive poor effect, and abrasion resistant effect is poor.
Summary of the invention
For prior art Problems existing, the present invention aims to provide a kind ofly can not produce that pungent peculiar smell and flue gas, nondiscoloration, wear resistance are good, strong adhesion, have the inorganic nano high-temperature resistant anti-corrosive wear-resistant paint and preparation method thereof of good antiseptic and rustproof function, environmental protection.
First aspect present invention provides a kind of smoke-free and tasteless inorganic nano high-temperature resistant anti-corrosive wear-resistant paint, comprise inorganic nano resin and mixed solvent, described inorganic nano resin is respectively silica dispersion 30%-90%, silane 10%-70%, pH value regulator 0.1%-10% and vulkacit H MT0.01%-1% by component and weight proportion and forms; Described mixed solvent is made up of high temperature resistant environment-protective pigment, filler, ethanol and water.
Further, described silica dispersion is mixed by 10 nanometer-20 nanometers, 30 nanometer-50 nanometers and 60 nanometer-90 nanometer particle size silicon-dioxide, and its weight proportion is respectively 1%-90%, 1%-90%, 1%-50%.
Further, described silane is formed by the silane mixture of one or more different substituents.
Second aspect present invention provides a kind of preparation method of smoke-free and tasteless inorganic nano high-temperature resistant anti-corrosive wear-resistant paint, comprise above-mentioned smoke-free and tasteless inorganic nano high-temperature resistant anti-corrosive wear-resistant paint, it first prepares inorganic nano resin, then by described inorganic nano resin and mixed solvent mixed grinding, wherein:
The preparation method of inorganic nano resin is as follows: first the Nano silicon dioxide dispersion of different-grain diameter mixed, after mixing, adding pH value regulator regulates the pH value of Nano silicon dioxide dispersion to be less than 7, then 50 degree are warmed up to, start to drip the mixed silanes measured in advance, dripped off in 30 minutes, keep temperature of reaction at 50 ~ 80 degree, isothermal reaction 2 ~ 5 hours, then add the vulkacit H MT of metering, insulation reaction 30 minutes, stop heating, cooling down, can obtain the inorganic nano resin that outward appearance is half milky white clear viscous liquids.Different according to each material proportion, each formula inorganic resin solid content controls between 30 ~ 50%;
Again the inorganic nano resin prepared is mixed with mixed solvent, carry out high speed dispersion with high speed dispersor, jitter time is 10 ~ 30 minutes, then adopts horizontal sand mill to grind, and regulate water coolant to make grinding material temperature be no more than 60 degree, milling time 1 ~ 2 hour.
Described smoke-free and tasteless inorganic nano high-temperature resistant anti-corrosive wear-resistant paint provided by the invention and preparation method thereof, has following beneficial effect:
1, smoke-free and tasteless: owing to being inorganic paint, can not produce pungent peculiar smell and the flue gas of organism pyrolytic decomposition;
2, nondiscoloration: owing to being inorganic paint, can not variable color under high temperature, and can do light-coloured coating and the bright color such as yellow, the green coating such as the white that other high-temperature resistant coatings can not do, and can not turn yellow;
3, high-wearing feature: under hardness and high temperature, hot hardness is high, can reach 9 hours;
4, high adhesive force and stripping strength: because the nano-silicon being different-grain diameter is composite, enhance the cross-linking density of inorganic resin greatly, add the density of coating; Simultaneously the nano-silicon mixture of size nanometer particle size, has filled up the space between Large stone nano-silicon, and small particle size nanometer absorbs the thermal stresses dispersion cushioned between Large stone nanometer, and Large stone nano-silicon is resisted and the thermal stresses of having isolated small particle size nanometer is concentrated;
5, good antiseptic and rustproof function;
6, prevent fires: the good high-temperature heat insulation that inorganic coating is intrinsic, fire heat can be stoped to steel transmission, and what at high temperature formed is a kind of fine and close glaze layer being similar to pottery of high rigidity, can effective starvation, delay steel construction to heat up, play flameproof protection effect;
7, economize consumptive material: the high-compactness that the nano-silicon due to many particle diameters is composite formed, can reach high temperature resistant and anticorrosion at the thin coating film of 15 micron thickness, flame-proof abrasion-resistant function, greatly save materials consumption;
8, easy construction: be single-component product, normal temperature solidified, need not curing catalyst be added, store validity period long, up to more than half a year, can construct simple and convenient;
9, environmental protection: inorganic paint, pigment adopts the high-temperature resisting pigment meeting FDA and rosh instruction, and not containing heavy metal, solvent is the mixture of a small amount of second alcohol and water, environment-protecting asepsis.
Embodiment
Technical scheme of the present invention is further illustrated below by embodiment:
The invention provides a kind of smoke-free and tasteless inorganic nano high-temperature resistant anti-corrosive wear-resistant paint, comprise inorganic nano resin and mixed solvent, described inorganic nano resin is made up of silica dispersion, silane, pH value regulator and vulkacit H MT; Described mixed solvent high temperature resistant environment-protective pigment, filler, ethanol and water form.
Described silica dispersion is the Nano silicon dioxide dispersion or silicon sol that adopt tetraethyl silicate or silica flour or water glass to make.
Described silane comprises the trifunctional of various organic substituent and the silane coupling agents of two functional groups such as methyl, ethyl, propyl group, butyl, sulfydryl, octyl group, vinyl, methacryloxy, phenyl, cyclohexyl, glycidyl ether.
Described pH value regulator refers to acetic acid, formic acid, propionic acid, oxalic acid, hydrochloric acid, sulfuric acid, nitric acid.
Described high temperature resistant environment-protective pigment refers to not containing the mineral dye meeting FDA and Rosh instruction of heavy metal: copper-chrome black, oxidation cobalt green, oxidation cobalt blue, titan yellow, titanium white etc.
Embodiment one:
By 50kg10 nanometer ~ 20 Nano silicon dioxide dispersion, 20kg30 nanometer ~ 50 Nano silicon dioxide dispersion, 30kg60 nanometer ~ 90 Nano silicon dioxide dispersion adds in the scuffing of cylinder bore of jacketed water-cooled respectively, start to stir, then 8kg acetic acid is dropped into, adjust ph is 4, then 50 degree are warmed up to, start to drip 45kg methyltrimethoxy silane and 4.5kg dimethyldimethoxysil,ne, the mixture of 0.5kg glycidyl ether Trimethoxy silane, dripped off in 30 minutes, keep temperature of reaction at 60 degree, isothermal reaction 3 hours, then 1.5kg vulkacit H MT is added, insulation reaction 30 minutes, stop heating, cooling down, the inorganic nano resin that outward appearance is half milky white clear viscous liquids can be obtained.Inorganic nano resin solid content is 35.6%, pencil hardness 9H, gloss 58 °, heatproof 1000 °.
By black containing heavy metal 600 degree of glass powder with low melting point, 1kg aluminum oxide 1250 order, 8kg silicon whisker, 15kg environment friendly inorganic hard fire colour chromium-copper to the 50kg inorganic nano resin, the 15kg environmental protection that prepare, 1kg inorganic bentonite, 5kg dehydrated alcohol, 5kg water mixing, then high speed dispersion is carried out with high speed dispersor, jitter time is 30 minutes, then grind, adopt horizontal sand mill to grind, and regulate water coolant, make grinding material temperature be no more than 60 degree, milling time 2 hours.The mode of employing spraying sprays to the metal part surface through sandblasting, after surface drying 5min, the baking oven putting into furnace temperature 100 DEG C is incubated 30min, namely inorganic coating is obtained after taking out air cooling, at 1000 DEG C through 100h constant temperature oxidation, the destruction such as efflorescence, peeling do not appear in coating, come off, and in high temperature resistant process, produce without any pungent poison gas and peculiar smell, there is good anticorrosion salt spray resistance and wear resisting property simultaneously.
Embodiment two to embodiment 17:
The preparation method of embodiment two to ten seven is identical with embodiment, and formula please refer to following table 1 and table 2:
Table 1: the formula of embodiment two to embodiment nine
Table 2: the formula of embodiment ten to embodiment 17
Its main performance index please refer to following table 3 and table 4:
Table 3: the main performance index of embodiment two to embodiment nine
| Sequence number | Index name | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Embodiment 7 | Embodiment 8 | Embodiment 9 |
| 1 | Solid content | 35 | 42 | 48 | 35.5 | 35 | 35 | 34 | 34 |
| 2 | Pencil hardness | 9H | 9H | 7H | 9H | 9H | 9H | 9H | 9H |
| 3 | Gloss | 55° | 68° | 75° | 65° | 61° | 60° | 40° | 67° |
| 4 | Heatproof | 1000° | 800° | 600° | 1000° | 1000° | 1000° | 1000° | 600° |
Table 4: the main performance index of embodiment ten to embodiment 17
| Sequence number | Index name | Embodiment 10 | Embodiment 11 | Embodiment 12 | Embodiment 13 | Embodiment 14 | Embodiment 15 | Embodiment 16 | Embodiment 17 |
| 1 | Solid content | 32 | 32 | 40 | 39 | 44 | 46 | 41 | 37 |
| 2 | Pencil hardness | 7H | 7H | 7H | 9H | 8H | 7H | 9H | 9H |
| 3 | Gloss | 50° | 60° | 60° | 62° | 64° | 66° | 58° | 59° |
| 4 | Heatproof | 1000° | 1000° | 800° | 800° | 600° | 600° | 800° | 800° |
Described smoke-free and tasteless inorganic nano high-temperature resistant anti-corrosive wear-resistant paint provided by the invention and preparation method thereof, has following beneficial effect:
1, smoke-free and tasteless: owing to being inorganic paint, can not produce pungent peculiar smell and the flue gas of organism pyrolytic decomposition;
2, nondiscoloration: owing to being inorganic paint, can not variable color under high temperature, and can do light-coloured coating and the bright color such as yellow, the green coating such as the white that other high-temperature resistant coatings can not do, and can not turn yellow;
3, high-wearing feature: under hardness and high temperature, hot hardness is high, can reach 9 hours;
4, high adhesive force and stripping strength: because the nano-silicon being different-grain diameter is composite, enhance the cross-linking density of inorganic resin greatly, add the density of coating; Simultaneously the nano-silicon mixture of size nanometer particle size, has filled up the space between Large stone nano-silicon, and small particle size nanometer absorbs the thermal stresses dispersion cushioned between Large stone nanometer, and Large stone nano-silicon is resisted and the thermal stresses of having isolated small particle size nanometer is concentrated;
5, good antiseptic and rustproof function;
6, prevent fires: the good high-temperature heat insulation that inorganic coating is intrinsic, fire heat can be stoped to steel transmission, and what at high temperature formed is a kind of fine and close glaze layer being similar to pottery of high rigidity, can effective starvation, delay steel construction to heat up, play flameproof protection effect;
7, economize consumptive material: the high-compactness that the nano-silicon due to many particle diameters is composite formed, can reach high temperature resistant and anticorrosion at the thin coating film of 15 micron thickness, flame-proof abrasion-resistant function, greatly save materials consumption;
8, easy construction: be single-component product, normal temperature solidified, need not curing catalyst be added, store validity period long, up to more than half a year, can construct simple and convenient;
9, environmental protection: inorganic paint, pigment adopts the high-temperature resisting pigment meeting FDA and rosh instruction, and not containing heavy metal, solvent is the mixture of a small amount of second alcohol and water, environment-protecting asepsis.
Above to invention has been exemplary description; obvious realization of the present invention is not subject to the restrictions described above; as long as have employed the various improvement that technical solution of the present invention is carried out; or design of the present invention and technical scheme directly applied to other occasion, all in protection scope of the present invention without to improve.
Claims (2)
1. a smoke-free and tasteless inorganic nano high-temperature resistant anti-corrosive wear-resistant paint, it is characterized in that, comprise inorganic nano resin and mixed solvent, wherein said inorganic nano resin is respectively silica dispersion 30%-90%, silane 10%-70%, pH value regulator 0.1%-10% and vulkacit H MT0.01%-1% by component and weight proportion and forms, and the weight ratio sum of all components is 100%;
Described silica dispersion is mixed by 10 nanometer-20 nanometers, 30 nanometer-50 nanometers and 60 nanometer-90 nanometer particle size silicon-dioxide, and its weight proportion is respectively 1%-90%, 1%-90%, 1%-50%;
The silane mixture that described silane is made up of one or more different substituents, wherein said silane comprises trifunctional and two functional silanes coupling agents, also comprises the glycidyl ether Trimethoxy silane that weight is vulkacit H MT weight 1/3 in described silane coupling agent;
Described mixed solvent is made up of high temperature resistant environment-protective pigment, filler, ethanol and water.
2. the preparation method of a smoke-free and tasteless inorganic nano high-temperature resistant anti-corrosive wear-resistant paint as claimed in claim 1, it is characterized in that, comprise the following steps: first prepare inorganic nano resin, again the inorganic nano resin prepared is mixed with mixed solvent, high speed dispersion is carried out with high speed dispersor, jitter time is 10 ~ 30 minutes, then horizontal sand mill is adopted to grind, and regulate water coolant to make grinding material temperature be no more than 60 degree, milling time 1 ~ 2 hour, can obtain smoke-free and tasteless inorganic nano high-temperature resistant anti-corrosive wear-resistant paint;
Wherein, the preparation method of described inorganic nano resin is as follows: first the Nano silicon dioxide dispersion of different-grain diameter mixed, after mixing, adding pH value regulator regulates the pH value of Nano silicon dioxide dispersion to be less than 7, then 50 degree are warmed up to, start to drip the mixed silanes measured in advance, dripped off in 30 minutes, keep temperature of reaction at 50-80 degree, isothermal reaction 2-5 hour, then adds the vulkacit H MT of metering, insulation reaction 30 minutes, stop heating, cooling down, can obtain the inorganic nano resin that outward appearance is half milky white clear viscous liquids; Different according to each material proportion, each formula inorganic resin solid content controls between 30 ~ 50%.
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| CN103113768A (en) * | 2013-03-08 | 2013-05-22 | 苏州纳迪微电子有限公司 | High temperature resistant coating for engine exhaust system |
| CN109294292B (en) * | 2018-09-14 | 2020-12-29 | 湖南凯斯利新材料有限公司 | Smokeless and odorless fireproof heat-insulating wet aerogel water-based inorganic nano ceramic coating and preparation method thereof |
| CN109401369B (en) * | 2018-09-14 | 2021-04-20 | 湖南凯斯利新材料有限公司 | Cement-based thermal-insulation moisture gel nano hybrid ceramic coating and preparation method thereof |
| CN109401370A (en) * | 2018-09-28 | 2019-03-01 | 湖南凯斯利新材料有限公司 | The smoke-free and tasteless of resistance to greasy dirt aqueous inorganic nano ceramics kitchen tools coating and preparation method thereof |
| CN110240817B (en) * | 2019-07-09 | 2021-01-19 | 华南理工大学 | A kind of high-performance hydrophilic non-stick dust coating and preparation method thereof |
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