CN102153947A - Special high temperature-resistant coating on outer wall of tobacco-curing furnace and preparation method thereof - Google Patents
Special high temperature-resistant coating on outer wall of tobacco-curing furnace and preparation method thereof Download PDFInfo
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- CN102153947A CN102153947A CN 201110070447 CN201110070447A CN102153947A CN 102153947 A CN102153947 A CN 102153947A CN 201110070447 CN201110070447 CN 201110070447 CN 201110070447 A CN201110070447 A CN 201110070447A CN 102153947 A CN102153947 A CN 102153947A
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Abstract
The invention discloses a special high temperature-resistant coating on an outer wall of a tobacco-curing furnace, which consists of the following components according to parts by weight: 30-40 parts of organic silicon resin, 5-10 parts of aluminium paste, 8-12 parts of titanium white, 30-40 parts of mixed stuffing, 0.5-1.5 parts of organic bentonite, 2-4 parts of PM, 1-3 parts of PMA (Propylene Glycol Monomethyl Acetate), and 4-6 parts of absolute ethyl alcohol, wherein the mixed stuffing consists of the following components according to parts by weight: 35-45 parts of low-melting point glass powder, 10-20 parts of hollow ceramic microspheres, 10-20 parts of zinc phosphate, 5-15 parts of aluminum tripolyphosphate and 18-22 parts of talcum powder. The special high temperature-resistant coating on the outer wall of the tobacco-curing furnace mainly has the advantages that a viscosity number reaches 85s, the percentage of solid reaches 65%, surface dry only needs 16 minutes, hard dry only needs 6 hours, the thermal endurance is strong, and the coating is not stripped for 6h at 500 DEG C. The coating has the advantages of high temperature resistance, rust prevention, quick drying, heat insulation, environmental protection and the like, can satisfy the use requirements on the outer wall of the tobacco-curing furnace, and is especially applicable for the tobacco-curing furnace.
Description
Technical field
The present invention relates to a kind of high-temperature resistant coating, be specifically related to a kind of special high-temperature resistant coating of flue-cured tobacco furnace outer wall.
Background technology
At the numerous equipment that are used for toasting cigarette leaf, baking oven is very common, its structure mainly comprises body of heater, flue, three primary members of radiator element, during work, these three primary member surface temperature height and difference are big, furnace body temperature is about 480 ℃～500 ℃, and flue temperature is about 300 ℃～320 ℃, and heatsink temperature is about 420 ℃～450 ℃.Because baking oven is welded by steel plate, when surface of steel plate is handled, only carry out simply removing embroidering with hand-operated tools, blow off floating dust by air, so the surface still has local rust staining and a small amount of oil stain for eliminating.
High temperature organosilicon paint has been widely used in facilities such as Industrial Stoves, chimney, steam-pipe, vehicle exhaust pipeline.Because the otherness of environment for use and the difference of constructional method, the formulating of recipe of high-temperature resistant coating has diversity.In the prior art, also be not specially adapted to toast the high-temperature resistant coating of the baking oven of cigarette leaf, this is that performance requriements should satisfy following condition: (1) heat resistance:＞500 ℃ because this high-temperature resistant coating need be according to the workpiece service condition degree body design of reality; (2) band rust antiseptic property: in view of the ground of baking oven and grow (reaching 6 months) turnround; (3) quick-drying: the flue-cured tobacco stove often in the open the place deposit, consider climate change, fast do can avoid being dashed by rainwater drench and influence coating performance; (4) heat insulating function: belong to the consideration of functional aspect, coating has heat-proof quality, can reduce the body of heater thermosteresis, thereby improves the heat energy utilization rate of flue-cured tobacco stove; (5) environmental-protecting performance: coating requires nontoxic, and solvent is environmentally friendly solvent preferably, avoids atmosphere pollution and harms workers ' health.
Summary of the invention
Goal of the invention: at the deficiencies in the prior art, the purpose of this invention is to provide a kind of special high-temperature resistant coating of flue-cured tobacco furnace outer wall, so that characteristics such as that it has is high temperature resistant, antirust, fast dried, heat insulation and environmental protection can satisfy the user demand of flue-cured tobacco furnace outer wall.
Technical scheme: in order to realize the foregoing invention purpose, the technical solution used in the present invention is: a kind of special high-temperature resistant coating of flue-cured tobacco furnace outer wall, each component by following parts by weight is formed: 30 ~ 40 parts of silicone resins, 5 ~ 10 parts of aluminium-silver slurrys, 8 ~ 12 parts of titanium dioxides, 30 ~ 40 parts of mixed fillers, 0.5 ~ 1.5 part of organobentonite, 2 ~ 4 parts of propylene glycol monomethyl ethers (PM), 1 ~ 3 part of 1-Methoxy-2-propyl acetate (PMA), 4 ~ 6 parts of dehydrated alcohols; Wherein, mixed fillers is made up of each component of following parts by weight: 35 ~ 45 parts in low melting point glass powder, 10 ~ 20 parts of hollow ceramic microspheres, 10 ~ 20 parts of zinc phosphates, 5 ~ 15 parts of aluminium triphosphates, 18 ~ 22 parts of talcum powder.
The special high-temperature resistant coating of flue-cured tobacco furnace outer wall preferably is made up of each component of following parts by weight: 36 parts of silicone resins, 8 parts of aluminium-silver slurrys, 10 parts of titanium dioxides, 35 parts of mixed fillers, 1 part of organobentonite, 3 parts of PM, 2 parts of PMA, 5 parts of dehydrated alcohols.
Mixed fillers preferably is made up of each component of following parts by weight: 40 parts in low melting point glass powder, 15 parts of hollow ceramic microspheres, 15 parts of zinc phosphates, 10 parts of aluminium triphosphates, 20 parts of talcum powder.
The method for preparing the special high-temperature resistant coating of above-mentioned flue-cured tobacco furnace outer wall: drop into silicone resin, solvent in proportion, stir evenly at a slow speed, drop into mixed fillers, titanium dioxide, organobentonite, high speed dispersion 30min, call in sand mill, after fineness reaches requirement, call in aluminium-silver slurry at a slow speed, after stirring 30min, filter discharging through vibratory screening apparatus.
The special high-temperature resistant coating of flue-cured tobacco furnace outer wall of the present invention, the selection of filmogen: pure silicone resin generally after temperature＞250 ℃, begins to occur bond rupture, dehydration, carbonization phenomenon.Introduced low melting point (430 ℃) glass powder in formulating of recipe, behind temperature＞430 ℃, glass powder is melt and dissolved attitude, becomes main film forming substance.After temperature reached 500 ℃, all organism disappeared in the coating, and only the form with silica gel exists, and aluminium powder can form melt and dissolved attitude metalloid plated film material under this high temperature.If film has anti-cracking, resistance toheat, and have a small amount of infiltration metal surface and combine with iron, have good thermotolerance.In view of the performance of silicone resin, require (the pure silicon resin is from dryness energy, quick-drying), the SM1056 that has chosen Jiangsu three wooden companies in the formulating of recipe is as binder resin.
The special high-temperature resistant coating of flue-cured tobacco furnace outer wall of the present invention, selection of pigment:, chosen that aluminium-silver slurry and Rutile type Titanium Dioxide are main pigment preferably with thermotolerance according to the appearance color requirement of flue-cured tobacco stove user to coating.
The special high-temperature resistant coating of flue-cured tobacco furnace outer wall of the present invention, the selection of functional filler: low melting point glass powder＜430 ℃〉when the coating temperature reaches more than 430 ℃, can can replace becoming main filmogen after the silicone resin decomposition as the bonding base-material of the master of coating.Empty little ceramic fine bead＜U.S. 3M〉particle diameter is about 10um, and heatproof reaches more than 800 ℃.What the selection of anticorrosive packing was mainly considered is at the surperficial antirust function of band rust, and after the practical application time of flue-cured tobacco stove reached 6 months, the zinc phosphate of selecting for use, be characterized in nontoxic, not high to surperficial processing requirements, can generate firm Fe[2n3 (PO4) 3 in the metallic surface] beds of precipitation and slow down matrix corrosion, aluminium triphosphate combines with metal ion, generates the passive film of hardness height, strong adhesion.Selected an amount of talcum powder in the formulating of recipe for use, purpose be utilize talcum powder do certainly film in the sticking power of base material is had certain contribution, topmost effect is can to combine with phosphoric acid salt, the light metal in the coating under the condition of high temperature, thereby improves heat resistance.What solvent was selected in the prescription is propylene glycol monomethyl ether, food grade ethanol, the 1-Methoxy-2-propyl acetate of environment-friendly type, is used to adjust working viscosity and coating evaporation rate.
Beneficial effect: compare with high-temperature resistant coating of the prior art, the advantage that the special high-temperature resistant coating of flue-cured tobacco furnace outer wall of the present invention has mainly comprises: viscosity number reaches 85s, and solids constituent reaches 65%, surface drying only needs 16min, only doing solid work needs 6h, and temperature tolerance is strong, and 500 ℃, 6h still do not peel off.Have characteristics such as high temperature resistant, antirust, fast dried, heat insulation and environmental protection, can satisfy the user demand of flue-cured tobacco furnace outer wall, be specially adapted to the flue-cured tobacco stove and use.
Embodiment
The present invention will be further explained below in conjunction with specific embodiment.
The employed material situation of following examples is as follows:
Silicone resin, Jiangsu three lignify worker company limiteds, SM1056.Aluminium-silver slurry, non-floating type, commercially available technical grade, 10-15um.Titanium dioxide, the good industry product in east, Shandong, Rutile type Titanium Dioxide SR-237.Organobentonite, sea, Shanghai this chemical industry of name, SD-1.PM and PMA, sky, Jiangsu sound chemical industry.Dehydrated alcohol, commercially available food grade.Low melting point glass powder, commercially available.Hollow ceramic microspheres, Minnesota Mining and Manufacturing Company produces.Zinc phosphate and aluminium triphosphate are 800 orders, Changzhou Tao Yuan chemical industry.Talcum powder, 1250 orders, commercially available technical grade.
Embodiment 1
The special high-temperature resistant coating of flue-cured tobacco furnace outer wall is made up of each component of following parts by weight: 30 parts of silicone resins, 5 parts of aluminium-silver slurrys, 12 parts of titanium dioxides, 40 parts of mixed fillers, 1.5 parts of organobentonites, 4 parts of PM, 3 parts of PMA, 4.5 parts of dehydrated alcohols; Wherein, mixed fillers is made up of each component of following parts by weight: 35 parts in low melting point glass powder, 10 parts of hollow ceramic microspheres, 20 parts of zinc phosphates, 15 parts of aluminium triphosphates, 20 parts of talcum powder.
The method of preparation: drop into silicone resin, solvent in proportion, (500 ~ 600r/min) stir evenly at a slow speed, drop into mixed fillers, titanium dioxide, organobentonite, (1000 ~ 1200r/min) disperse 30min at a high speed, call in sand mill, after fineness reached requirement, (500 ~ 600r/min) called in aluminium-silver slurry at a slow speed, after stirring 30min, filter discharging through vibratory screening apparatus and get final product.Detection is tested in sampling.
Embodiment 2
Method is with embodiment 1, and specifically each material composition is: 36 parts of silicone resins, 8 parts of aluminium-silver slurrys, 10 parts of titanium dioxides, 35 parts of mixed fillers, 1 part of organobentonite, 3 parts of PM, 2 parts of PMA, 5 parts of dehydrated alcohols.Each component of mixed fillers is: 40 parts in low melting point glass powder, 15 parts of hollow ceramic microspheres, 15 parts of zinc phosphates, 10 parts of aluminium triphosphates, 20 parts of talcum powder.
Embodiment 3
Method is with embodiment 1, and specifically each material composition is: 40 parts of silicone resins, 10 parts of aluminium-silver slurrys, 8 parts of titanium dioxides, 30 parts of mixed fillers, 1 part of organobentonite, 2 parts of PM, 3 parts of PMA, 6 parts of dehydrated alcohols; Wherein, mixed fillers is made up of each component of following parts by weight: 45 parts in low melting point glass powder, 20 parts of hollow ceramic microspheres, 10 parts of zinc phosphates, 7 parts of aluminium triphosphates, 18 parts of talcum powder.
Embodiment 4
Method is with embodiment 1, and specifically each material composition is: 39 parts of silicone resins, 8 parts of aluminium-silver slurrys, 10.5 parts of titanium dioxides, 34 parts of mixed fillers, 0.5 part of organobentonite, 3 parts of PM, 1 part of PMA, 4 parts of dehydrated alcohols; Wherein, mixed fillers is made up of each component of following parts by weight: 39 parts in low melting point glass powder, 11 parts of hollow ceramic microspheres, 13 parts of zinc phosphates, 15 parts of aluminium triphosphates, 22 parts of talcum powder.
The product of optional the foregoing description detects, and typical results is as shown in table 1.
The performance test results table of table 1 high-temperature resistant coating (23 ± 2 ℃, relative temperature: 75%)
| Project | Technological standard | Measured result |
| Coating appearance | The white thick liquid | Qualified |
| Viscosity＜be coated with 4# cup 〉 | 60～90s | 85s |
| Solids constituent (%) | ＞50% | 65% |
| Appearance of film | Smooth | Smooth |
| Surface drying (min) | ≤30min | 16min |
| Do solid work (h) | ＜24h | 6h |
| Temperature tolerance＜500 ℃, 6h 〉 | Do not peel off | Do not peel off |
The heat-proof quality detected result is: temperature in the body of heater: 5.6 ℃, and the outer temperature of body of heater: 482 ℃.
Claims (4)
1. the special high-temperature resistant coating of a flue-cured tobacco furnace outer wall, it is characterized in that, each component by following parts by weight is formed: 30 ~ 40 parts of silicone resins, 5 ~ 10 parts of aluminium-silver slurrys, 8 ~ 12 parts of titanium dioxides, 30 ~ 40 parts of mixed fillers, 0.5 ~ 1.5 part of organobentonite, 2 ~ 4 parts of PM, 1 ~ 3 part of PMA, 4 ~ 6 parts of dehydrated alcohols; Wherein, mixed fillers is made up of each component of following parts by weight: 35 ~ 45 parts in low melting point glass powder, 10 ~ 20 parts of hollow ceramic microspheres, 10 ~ 20 parts of zinc phosphates, 5 ~ 15 parts of aluminium triphosphates, 18 ~ 22 parts of talcum powder.
2. the special high-temperature resistant coating of flue-cured tobacco furnace outer wall according to claim 1 is characterized in that, is made up of each component of following parts by weight: 36 parts of silicone resins, 8 parts of aluminium-silver slurrys, 10 parts of titanium dioxides, 35 parts of mixed fillers, 1 part of organobentonite, 3 parts of PM, 2 parts of PMA, 5 parts of dehydrated alcohols.
3. the special high-temperature resistant coating of flue-cured tobacco furnace outer wall according to claim 1 is characterized in that, mixed fillers is made up of each component of following parts by weight: 40 parts in low melting point glass powder, 15 parts of hollow ceramic microspheres, 15 parts of zinc phosphates, 10 parts of aluminium triphosphates, 20 parts of talcum powder.
4. method for preparing the special high-temperature resistant coating of the described flue-cured tobacco furnace outer wall of claim 1, it is characterized in that: drop into silicone resin, solvent in proportion, stir evenly at a slow speed, drop into mixed fillers, titanium dioxide, organobentonite, high speed dispersion 30min calls in sand mill, after fineness reaches requirement, call in aluminium-silver slurry at a slow speed, behind the stirring 30min, filter discharging through vibratory screening apparatus.
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| CN 201110070447 CN102153947A (en) | 2011-03-23 | 2011-03-23 | Special high temperature-resistant coating on outer wall of tobacco-curing furnace and preparation method thereof |
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| CN 201110070447 CN102153947A (en) | 2011-03-23 | 2011-03-23 | Special high temperature-resistant coating on outer wall of tobacco-curing furnace and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102993942A (en) * | 2012-08-24 | 2013-03-27 | 苏州工业园区杰士通真空技术有限公司 | Paint for vacuum furnace |
| CN103102715A (en) * | 2011-11-09 | 2013-05-15 | 天津市硅酸盐研究所 | Infrared reflection coating |
| CN106280987A (en) * | 2016-10-09 | 2017-01-04 | 湖南博弈飞装备新材料研究所 | Transparent anticorrosive coating of rustless steel and preparation method thereof |
| CN107189501A (en) * | 2017-06-08 | 2017-09-22 | 东莞大熙节能科技有限公司 | Can tempering insulating moulding coating and preparation method thereof and its obtained heat-insulated safety glass |
| JP2019157037A (en) * | 2018-03-15 | 2019-09-19 | アイシン化工株式会社 | Heat-insulation coating composition for vehicle floor panel, heat-insulation coating film, vehicle floor panel and vehicle floor tunnel structure |
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| DD125139A1 (en) * | 1976-03-18 | 1977-04-06 | ||
| CN1935921A (en) * | 2005-09-22 | 2007-03-28 | 陈历泽 | High-temperature-resistance oxidation coating for predry-free full-descaling steel billet |
| CN101619197A (en) * | 2008-11-27 | 2010-01-06 | 三棵树涂料股份有限公司 | Manometer aqueous high-temperature-resistant metal-baking coating |
| CN101737952A (en) * | 2010-01-29 | 2010-06-16 | 曾赞伦 | Manufacturing method of water tank of water heater |
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2011
- 2011-03-23 CN CN 201110070447 patent/CN102153947A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DD125139A1 (en) * | 1976-03-18 | 1977-04-06 | ||
| CN1935921A (en) * | 2005-09-22 | 2007-03-28 | 陈历泽 | High-temperature-resistance oxidation coating for predry-free full-descaling steel billet |
| CN101619197A (en) * | 2008-11-27 | 2010-01-06 | 三棵树涂料股份有限公司 | Manometer aqueous high-temperature-resistant metal-baking coating |
| CN101737952A (en) * | 2010-01-29 | 2010-06-16 | 曾赞伦 | Manufacturing method of water tank of water heater |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103102715A (en) * | 2011-11-09 | 2013-05-15 | 天津市硅酸盐研究所 | Infrared reflection coating |
| CN102993942A (en) * | 2012-08-24 | 2013-03-27 | 苏州工业园区杰士通真空技术有限公司 | Paint for vacuum furnace |
| CN106280987A (en) * | 2016-10-09 | 2017-01-04 | 湖南博弈飞装备新材料研究所 | Transparent anticorrosive coating of rustless steel and preparation method thereof |
| CN107189501A (en) * | 2017-06-08 | 2017-09-22 | 东莞大熙节能科技有限公司 | Can tempering insulating moulding coating and preparation method thereof and its obtained heat-insulated safety glass |
| CN107189501B (en) * | 2017-06-08 | 2019-08-20 | 东莞大熙节能科技有限公司 | Can tempering insulating moulding coating and preparation method thereof and its heat-insulated tempered glass obtained |
| JP2019157037A (en) * | 2018-03-15 | 2019-09-19 | アイシン化工株式会社 | Heat-insulation coating composition for vehicle floor panel, heat-insulation coating film, vehicle floor panel and vehicle floor tunnel structure |
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Application publication date: 20110817 |