CN100540624C - Nano ceramic water-proof climate resisting high mechanical strength protection layer paint - Google Patents
Nano ceramic water-proof climate resisting high mechanical strength protection layer paint Download PDFInfo
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- CN100540624C CN100540624C CNB2007100632919A CN200710063291A CN100540624C CN 100540624 C CN100540624 C CN 100540624C CN B2007100632919 A CNB2007100632919 A CN B2007100632919A CN 200710063291 A CN200710063291 A CN 200710063291A CN 100540624 C CN100540624 C CN 100540624C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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Abstract
The invention discloses a kind of nano ceramic water-proof, weather-proof, high mechanical strength gets coating and its production and application.This coating comprises filmogen, filler and modified Nano powder, preferably can also comprise auxiliary agent, and wherein said amount of substance is preferably: the part by weight of filmogen, filler, auxiliary agent and modified Nano powder is 20-60: 30-65: 1-5: 1-10.Coating of the present invention has excellent waterproof, weather resisteant, and the physical strength height can be as the protective layer of high-temperature pipe, and easy to use.
Description
Technical field
The present invention relates to the material field, relate in particular to the high nano ceramics coating of water-proof climate resisting physical strength.
Background technology
Along with the fast development of industry, living standards of the people increase substantially, and many industry need high-temperature vapour heat (generally below 600 ℃), biotope central heating, heating.These high-temperature gases derive from the Thermal Corp that city suburbs produce high-temperature gas, or industrial gaseous waste etc. (as the waste gas in power station etc.).The high-temperature gas multipurpose pipe is transported to inside the city, and fed distance does not wait from several kilometers to tens kilometers.The pipeline majority is walked underground, and minority is walked on the ground.No matter be to walk on the ground or walk undergroundly, pipeline all needs to do anticorrosion (four seasons, the logical gas of high temperature more than 200 ℃ can not done preservative coat), insulation, waterproof, fire prevention, and certain mechanical strength is arranged.For satisfying so high requirement, generally need three-decker:
The first layer: high-temperature resistant anti-corrosive layer
The second layer: high-temperature-resistant thermal-insulation layer
The 3rd layer: water-fast, as to have higher mechanical strength protective layer.
Domestic traditional method to this engineering is as follows:
The first layer: be coated with one deck rust-inhibiting paint (as red lead paint) at the heat supply pipeline outside surface.Through the investigation, the temperature of high temperature heat supply pipeline generally more than 200 ℃ to below 600 ℃.The not anti-so high-temperature of red lead paint.
The second layer: thermal insulation layer can reach corresponding insulation requirement with rock wool, perlite, polyurethane foam etc., but thermal insulation layer very thick (300 ℃-600 ℃ the time, thickness reaches 15-25cm as temperature in managing).And it is non-watertight.In case a large amount of moisture absorptions or suction then lose insulated capacity.
The 3rd layer: protective layer, tightly waterproof and certain mechanical strength is provided.Traditional method is to overlap a steel pipe again in the outside of thermal insulation layer, is called " steel bushing steel ".Can reach service requirements.But cost rises more than 1/3, and weight increases, constructional difficulties.Work-ing life was because of the difference of corrosive environments such as geology, water quality, air and thickness of steel pipe, about 5～25 years.
The heat supply pipeline of Ф 720, temperature is 400 ℃ in the pipe, lagging material thickness 25cm, 40 ℃ of the temperature after the insulation, the every linear meter(lin.m.) cost of above-mentioned three layers of comprehensive cost reaches more than 2500 yuan., a pipeline of tens kilometers, the corrosion-resistant thermal insulation expense reaches more than tens million of units.
Domestic existing a large amount of underground heat supply pipeline, corrosion-resistant thermal insulation is all undesirable, has much and has not had the corrosion-resistant thermal insulation measure.These pipelines outer steel pipe again are impossible.
According to the statistics made by the departments concerned, China steam pipe system system, the annual coal that consumes reaches 3.1 hundred million tons, accounts for 1/3 of the total coal consumption in the whole nation, and the utilization ratio of heat only about 30%, loses huge.
Summary of the invention
The object of the present invention is to provide the coating of a kind of nano ceramic water-proof, weather-proof, high mechanical strength, replace outer steel pipe to use as the three-layer protection layer of high temperature heat supply pipeline corrosion-resistant thermal insulation.
Another object of the present invention is to provide the preparation method and the application thereof of above-mentioned coating.
The objective of the invention is to be achieved through the following technical solutions.
The invention provides the coating of a kind of nano ceramic water-proof, weather-proof, high mechanical strength, it comprises the nano powder of filmogen, filler and modification, preferably can also comprise auxiliary agent.
In the coating of the present invention, the amount of above-mentioned substance is preferably: the part by weight of the nano powder of filmogen, filler, auxiliary agent and modification is 20-60: 30-65: 1-5: 1-10.
In the coating of the present invention, the used film forming material is selected from acrylic acid modified silicone resin, organic-silicon-modified Synolac, organic-silicon-modified Resins, epoxy, AH-CR602 resin, AH-404 resin (hexenyl) and 199A resin (diol type).Can use wherein one or more combination.
In the coating of the present invention, used filler is selected from terra alba, quartz sand powder, silicon dioxide powder, glass microsphere, ceramic microsphere, wollastonite powder, oxide powder and zinc, titanium dioxide powder and glass flakes etc.Can use wherein one or more combination.
Filler is an important component part of the present invention, and enhance mechanical strength improves fire-protection rating, has very strong UV resistant performance and radiation protection ability, can improve weathering resistance.
In the coating of the present invention, adjuvant used methylethyl ketone peroxide, peroxide acetic acid butyl ester, cobalt octoate, cobalt naphthenate, A-555 and the A-560 of being selected from.Can use wherein one or more combination.
In the coating of the present invention, used modified Nano powder is selected from nanmeter antimong trioxide, modified Nano aluminium sesquioxide, modified Nano ferric oxide, modified nano-titanium dioxide, modified manometer silicon dioxide, modified nano-silica zirconium, modified nano zinc oxide, modified Nano silicon carbide, modified Nano calcium oxide of modification etc.Can use wherein one or more combination.
Used modified Nano powder can use above-mentioned nanmeter antimong trioxide, nano-aluminium oxide, nanometer ferric oxide, nano titanium oxide, nano silicon, nano zirconium dioxide, nano zine oxide, nanometer silicon carbide or the nano calcium oxide that one or more modifier modifications in primary alconol, sodium stearate, stearic acid, acetone, KH-550, DL-482 and DL-882 are crossed among the present invention.For example can use nano silicon through KH-550 and acetone modification.Modifying process can be by mixing the drying nano powder, finish with ultrasonication and drying with above-mentioned properties-correcting agent.
The present invention also provides the preparation method of above-mentioned coating, and this method comprises: modified Nano powder and filmogen and filler are mixed; After for example modified Nano powder and filmogen being mixed, add filler again and mix;
Perhaps this method comprises: filmogen and filler and modified Nano powder are mixed, add auxiliary agent before use again and mix; After for example filmogen and filler being mixed, add the modified Nano powder again and mix, add auxiliary agent before use again and mix; Perhaps for example filmogen and part filler are mixed, add the modified Nano powder again and mix, mix at the filler that adds remainder then, add auxiliary agent before use again and mix.
The preparation method of coating of the present invention can also comprise and uses properties-correcting agent that nano powder is carried out modification and obtains the modified Nano powder in advance.
Coating of the present invention has excellent waterproof, weather resisteant, and the physical strength height can be as the protective layer of high-temperature pipe.Its advantage is specific as follows:
1. good water resistance is arranged, and the sticking power that this coating contacts with steel pipe reaches more than the 30MPa, and the rate of permeation of water is less than 0.2%.
2. good physical strength is arranged, satisfy lifting, carrying and the argillous extruding of making pipe fully, the thickness of coating, promptly physical strength can also artificial control.Therefore pass its intensity of highway and be enough to the tolerance extruding.
3. the elongation about 0.3% that is heated of steel pipe, the tension set of this coating far surpasses the elongation of steel pipe greater than 2%～5%, can not rupture.
4. this coating is compared with steel pipe, and is in light weight, and convenient carrying, construction, particularly pipe bending part can be brushed arbitrarily when obstacle such as switch, pipeline branch, support, telescopic joint is arranged.To the old pipeline that has come into operation, the reparation of corrosion-resistant thermal insulation performance is very convenient.
5. cost is low, is about 1/2nd of " steel bushing steel " practice.
6. working life is more than 50 years.
These advantages have remedied the deficiency of " steel bushing steel " mode basically.
Embodiment
Further describe the present invention below in conjunction with specific embodiment, characteristics of the present invention and advantage will be more clear by the description of embodiment.But these embodiment only are exemplary, scope of the present invention are not constituted any restriction.It will be understood by those skilled in the art that not departing under the spirit and scope of the invention situation any conventional replacement that details of the present invention and describing mode are carried out and all fall into protection scope of the present invention.
Embodiment 1
Get the red stone titanium of acrylic acid modified silicone resin 60kg, well from powder 15kg, terra alba 9.7kg, glass flakes 10kg, A-5600.3kg and modified manometer silicon dioxide 5kg:
Wherein modified manometer silicon dioxide is at 80-100 ℃ of following drying and dewatering with nano silicon, the coupling agent acetone soln that makes with 0.06kg KH-550 and 1.2kg acetone then, after the mixing and stirring, with ultrasonication 30 minutes, static about 60 minutes, thus reheat to about 60 ℃ to slough acetone makes.
Modified manometer silicon dioxide is joined in the acrylic acid modified silicone resin; with about 1200 rev/mins high-speed stirring 40 minutes; static 30 minutes; add A-560 again and stirred 10 minutes; under condition of stirring, add the red stone titanium dioxide of well, terra alba and glass flakes again and continue stirring 30 minutes; through grinding its fineness is reached about 40 μ m, obtain the protection layer for paint of high-temperature pipe use on the ground.
Test:
Books are become the filled circles column, and tie up solidly, at the coating of its outside surface coating embodiment 1, coat-thickness is 3mm, puts it in the water after the coating drying and floods then.After 2 years, take out and find that book is not soaked, illustrate that the water resistance of coating is very good.
Embodiment 2
Get AH-CR602 resin 60kg, quartz sand 15kg, terra alba 8.5kg, glass microsphere 10kg, methylethyl ketone peroxide 1.2kg, cobalt octoate 0.3kg, modified manometer silicon dioxide 5kg as filmogen, wherein modified manometer silicon dioxide as described in example 1 above method be prepared.
The AH-CR602 resin is stirred, and in stirring, add quartz sand and terra alba, and with about 1200 rev/mins high-speed stirring 30 minutes, add modified manometer silicon dioxide, restir 0.5 hour adds glass microsphere then, speed with 80 rev/mins stirs, and obtains mixture 1.
After before use said mixture 1 and methylethyl ketone peroxide being stirred earlier, add cobalt octoate again and stir and to use.Obtain the protection layer for paint that underground high-temperature pipe uses.
Test:
Outside a surname, do thermal insulation layer and protective layer comprehensive test on the underground pipeline Ф 820 in street, wherein for test group, thermal insulation layer uses the thermal insulation coatings according to Chinese patent application 200610113748.8 (application number) gained, insulation layer thickness is 4cm, protective layer on the thermal insulation layer uses the coating of embodiment 2, protective layer thickness is 3mm, and duct length is 20m; Comparative group then be on underground pipeline Ф 820 with the pure aluminium silicate perlite of 12cm as thermal insulation layer, outside thermal insulation layer with the cement mortar layer of 1cm as protective layer, duct length also is 20m.After 6 months, the comparative group piping jacket destroys to some extent, and heating tube pipeline external surface temperature is 67 ℃, and the return water pipe hull-skin temperature is 61 ℃; And the test group protective layer is excellent; it is very good to illustrate that its protective layer in big, the moist environment of subsurface pressure has enough physical strengths, protection against the tide, waterproof, antiacid alkali effect; heating tube pipeline external surface temperature is 44 ℃, and the return water pipe hull-skin temperature is 38 ℃.
Above embodiment and test explanation coating of the present invention have excellent mechanical intensity; effects such as waterproof, protection against the tide, antiacid alkali are very good; be that its corrosion-resistant thermal insulation is respond well; and coating using method of the present invention and simple; and coat-thickness is extremely thin, and general only need can have the protection effect of highly significant by about 3mm.And the cement mortar protective layer, general coating machine insufficient strength, and waterproof moisture-proof effect is bad, relatively more responsive for acid or alkali environment, thus destroy easily and influence the heat insulation effect of pipeline integral body, and the formation method complexity of protective layer, be difficult to underground construction.The present invention has then solved these problems of prior art, therefore has obvious improvement.
Claims (7)
1, a kind of nano ceramic water-proof, weather-proof, the coating of high mechanical strength, it comprises filmogen, filler, modified Nano powder and auxiliary agent, it is characterized in that described modified Nano powder is through primary alconol, sodium stearate, stearic acid, acetone, KH-550, the nanmeter antimong trioxide that one or more modifier modifications among DL-482 and the DL-882 are crossed, nano-aluminium oxide, the nanometer ferric oxide, nano titanium oxide, nano silicon, nano zirconium dioxide, nano zine oxide, nanometer silicon carbide or nano calcium oxide, modifying process are by the drying nano powder is mixed with above-mentioned properties-correcting agent, finish with ultrasonication and drying;
Described filmogen is selected from one or more the combination in acrylic acid modified silicone resin, organic-silicon-modified Synolac, organic-silicon-modified Resins, epoxy, AH-CR602 resin, AH-404 resin (hexenyl) and the 199A resin (diol type);
Described auxiliary agent is selected from one or more the combination among methylethyl ketone peroxide, peroxide acetic acid butyl ester, cobalt octoate, cobalt naphthenate, A-555 and the A-560.
2, coating according to claim 1, wherein said amount of substance is: the part by weight of filmogen, filler, auxiliary agent and modified Nano powder is 20-60: 30-65: 1-5: 1-10.
3, coating according to claim 1 and 2 wherein is selected from one or more combination in terra alba, quartz sand powder, silicon dioxide powder, glass microsphere, ceramic microsphere, wollastonite powder, oxide powder and zinc, titanium dioxide powder and the glass flakes with filler.
4, coating as claimed in claim 1, wherein the modified Nano powder is the nano silicon through KH-550 and acetone modification.
5, the method for preparing each described coating of claim 1-4, this method comprises: modified Nano powder and filmogen and filler are mixed; Perhaps this method comprises: filmogen and modified Nano powder are mixed, add auxiliary agent before use again and mix.
6, according to the method for claim 5, it is characterized in that, this method also comprises uses properties-correcting agent that nano powder is carried out modification and obtains the modified Nano powder in advance, and described properties-correcting agent is selected from one or more among primary alconol, sodium stearate, stearic acid, acetone, KH-550, DL-482 and the DL-882.
7, as claim 1-4 coating application in the high-temperature pipe protective layer as described in each.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100632919A CN100540624C (en) | 2007-01-08 | 2007-01-08 | Nano ceramic water-proof climate resisting high mechanical strength protection layer paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100632919A CN100540624C (en) | 2007-01-08 | 2007-01-08 | Nano ceramic water-proof climate resisting high mechanical strength protection layer paint |
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| CN100999645A CN100999645A (en) | 2007-07-18 |
| CN100540624C true CN100540624C (en) | 2009-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100632919A Expired - Fee Related CN100540624C (en) | 2007-01-08 | 2007-01-08 | Nano ceramic water-proof climate resisting high mechanical strength protection layer paint |
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-
2007
- 2007-01-08 CN CNB2007100632919A patent/CN100540624C/en not_active Expired - Fee Related
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| CN100999645A (en) | 2007-07-18 |
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