CN100419035C - Anticorrosive pipeline paint and its prepn - Google Patents
Anticorrosive pipeline paint and its prepn Download PDFInfo
- Publication number
- CN100419035C CN100419035C CNB2006100454724A CN200610045472A CN100419035C CN 100419035 C CN100419035 C CN 100419035C CN B2006100454724 A CNB2006100454724 A CN B2006100454724A CN 200610045472 A CN200610045472 A CN 200610045472A CN 100419035 C CN100419035 C CN 100419035C
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- mineral filler
- coupling agent
- titanate coupling
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- resin
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Abstract
The anticorrosive pipeline paint consists of epoxy resin 100 weight portions, fluorocarbon resin 5-15 weight portions, nylon resin 5-15 weight portions, inorganic filler 10-40 weight portions and compound curing agent 10-25 weight portions. The preparation process includes the following steps: treating the inorganic filler with titanate coupler; mixing epoxy resin, fluorocarbon resin, nylon resin and compound curing agent and smelting and extruding in a double screw extruder; freezing and crushing to 100-300 mesh, adding the inorganic filler through stirring. The anticorrosive pipeline paint has the advantages of short curing period, high corrosion resistance, high strength, low friction coefficient, hydrophobicity and lipophobicity.
Description
One, technical field
The present invention relates to a kind of efficient low friction anticorrosive pipeline paint and preparation method thereof.
Two, background technology
At present, the technology for external corrosion-proofing of steel pipe has following several usually:
The one, PE structural anticorrosion pipe, this anti-corrosion pipe application quantity is big, and can reach 50 years work-ing life, but complex manufacturing, cost height, and cathode screen is difficult to realize galvanic protection in the use, and it is outer anticorrosion to be only applicable to pipeline, is not suitable for applying;
The 2nd, single FBE anticorrosion with painting pipe, this anti-corrosion pipe application quantity is big, and favorable anti-corrosion effect, but shock resistance, anti-surface tear poor performance are subjected to heavily to clash into and crackle can occur, lose preservative effect; And be only applicable to outside the pipeline anticorrosion.
The 3rd, the epoxy powder system, the dual-layer epoxy powder anti-corrosion pipe that Minnesota Mining and Manufacturing Company, E.I.Du Pont Company adopt, solved the problem that exists in the outer rot-resistant list FBE anticorrosion with painting of pipeline, but it is two kinds of different powder, to spray respectively, need to increase by three cover powder-supply systems and three cover powder spraying systems, strengthened facility investment and application difficulty, improved production cost.And be applicable to rot-resistant corrosion-proof epoxy powder coating in the steel pipe, and coating adhesion is strong, and favorable anti-corrosion effect in the oil field oil transportation, has using value on water filling and oil pipeline are anticorrosion.But in oil field transportation, filling pipe, because epoxy fragility is big, there is sizable frictional coefficient in addition in poor toughness, and these make the impact resistance poor-performing of pipeline, and adhere to impurity easily, and then form line clogging, directly influence oil recovery and oil transportation.
Three, summary of the invention
At the deficiencies in the prior art, a kind of efficient low friction anticorrosive pipeline paint provided by the invention and preparation method thereof.
Anticorrosive pipeline paint component of the present invention is as follows, is parts by weight:
90～115 parts of Resins, epoxy
5～15 parts of fluorocarbon resins
5～15 parts of nylon resins
10～40 parts of mineral fillers
10～25 parts of composite curing agents
Described mineral filler is one or more in aluminium zinc scale, iron mica, the stainless steel flakes.
Described composite curing agent is 4,4 '-diaminodiphenylsulfone(DDS), certain herbaceous plants with big flowers diacid two hydrazides, one or more in the Dyhard RU 100.
Preferably, described mineral filler is handled through titanate coupling agent, and concrete treatment process is as follows: 5%NaOH solution is put in mineral filler, and 70 ℃ are soaked 30min, and it is neutral taking out and being washed till pH with clear water.Then, put it in the solution of titanate coupling agent, the titanate coupling agent quality that contains in the solution is 0.5～2 times of a mineral filler quality; Strength of solution: titanate coupling agent is the 10%-20% weight percent, at room temperature soaks 30min, filters, and 90 ℃ of oven dry are stand-by.
The preparation method of anticorrosive pipeline paint of the present invention, step is as follows:
Powder such as fluorocarbon resin, Resins, epoxy, nylon resin, composite curing agent are uniformly dispersed, drop into dual-screw-stem machine and melt extrude; Cryogenic freezing again, powder particle diameter is the 100-300 order, adds mineral filler again and stirs, and gets final product.
The scale of mineral filler is a kind of high polar material, and is easily contaminated, and in order to improve the wetting property of film-forming resin to the mineral filler scale, the most handy titanate coupling agent is handled before the use.Treatment process as previously mentioned.
Corrosion protection coating coating advantage of the present invention is that set time is short, and is high against corrosion, high strength, and frictional coefficient is low, has hydrophobic and increases oiliness.
One of characteristics of the present invention are to add fluorocarbon resin, nylon resin in existing epoxide powder coating, make matrix material have self-cleaning, reduce the frictional coefficient of material simultaneously, and the elasticity of reinforced composite.Thereby increase the snappiness and the performances such as slipperiness and chemical resistant properties of coating.Because the adding of fluorocarbon resin, make compound coating coating have hydrophobic, hate oil, the performance of automatically cleaning, self-lubricating.Because the adding of nylon resin, it is corrosion-resistant preferably to make that compound coating coating has, and toughening effect is strengthened to some extent for the performance of tolerance bump.
Two of characteristics of the present invention are to add composite curing agent in existing epoxide powder coating, and wherein 4,4 '-diaminodiphenylsulfone(DDS) is nontoxic, have phenyl ring very stable in the structure, thereby heat-drawn wire is higher, and chemical reagent resistance is good.Certain herbaceous plants with big flowers diacid two hydrazides: corrosion-resistant, the heat-drawn wire height.Dyhard RU 100: the cured article good toughness, anti-mechanical impact force is good.The three can distinguish separately that use also can be in conjunction with composite, to obtain the different high-performance protective system of performance.
Three of characteristics of the present invention are to add mineral filler in existing epoxide powder coating, with the cost that reduces coating with improve coating performance.Especially, the dosage of mineral filler should suit, if add too much then random accumulation makes the inner defectives such as space, pore that form of coating, the compactness that influence is filmed; Then be difficult to very little form bridging, overlapping arrangement, then the impermeability of coating can descend.Scale generally as thin as a wafer, only below several micron, specification is at the 60-150 order for thickness, they are parallel in the resin, when the thickness of filming was 1mm, the scale that is arranged in parallel just had tens to the hundreds of layer, and it act as: the process of osmosis that 1. prolongs corrosive medium greatly; 2. since scale is discontinuous stopping composition be scattered in film among, thereby the unrelieved stress that is produced can reduce resin solidification the time has significantly reduced the contraction of coating, and the tiny crack of corrosion resistant coating, micropore are significantly reduced, and has improved the anticorrosion ability of corrosion resistant coating.Stainless steel flakes is in the raising that all has aspect coating structure compactness, wear resistance, physical strength, thermotolerance and the weathering resistance in various degree.The aluminium zinc scale has good ductility, and its specification is controlled easily, good heat resistance, and the thermal conductivity height, surperficial light reflectance height, so thermotolerance and weathering resistance are higher.Mineral filler needs to use titanate coupling agent to handle as treatment agent before using.
Four, embodiment
Below by embodiment the present invention is specifically described; present embodiment only is used for the present invention is further specified; should not be construed as limiting the scope of the invention, the person skilled in art can content according to the present invention make some nonessential improvement and adjustment.
Embodiment 1, anticorrosive pipeline paint component such as following table:
| Composition | Resins, epoxy E12 | Fluorocarbon resin | Nylon resin 1212 | Aluminium zinc scale/iron mica (handling) through titanate coupling agent | Certain herbaceous plants with big flowers diacid two hydrazides |
| Weight (Kg) | 100 | 8 | 15 | 10/15 | 10 |
The preparation method:
(1) processing of mineral filler: use earlier the titanate coupling agent treatment inorganic filling material.5%NaOH solution is put in mineral filler, and 70 ℃ are soaked 30min, and it is neutral taking out and being washed till pH with clear water.Then, put it among the solution 150Kg of titanate coupling agent (contain titanate coupling agent 22.5Kg in the solution, strength of solution: titanate coupling agent is 15%WT), at room temperature soak 30min, filter, 90 ℃ of oven dry are stand-by.
(2) powder such as fluorocarbon resin, Resins, epoxy, nylon resin, composite curing agent are uniformly dispersed, drop into dual-screw-stem machine and melt extrude.The cryogenic freezing powder particle diameter is the 100-300 order again, adds the mineral filler of handling again and stirs the use of can constructing.
The product of present embodiment is sprayed in the pipeline, and detected result is as follows:
Outward appearance: surfacing, color and luster are evenly, no bubble do not have the no shrinkage cavity of cracking: and sticking power (95 ± 2 ℃, 24h) 1 grade; Resistance to impact shock: 12J; Cathodic disbonding (65 ℃, 48h): 9mm.Conform to quality requirements.
Embodiment 2, anticorrosive pipeline paint component such as following table:
| Composition | Resins, epoxy E12 | Fluorocarbon resin | Nylon resin 1212 | Iron mica/stainless steel flakes (handling) through titanate coupling agent | 4,4 '-diaminodiphenylsulfone(DDS)/certain herbaceous plants with big flowers diacid two hydrazides |
| Weight (Kg) | 115 | 15 | 8 | 20/20 | 10/12 |
The preparation method:
(1) processing of mineral filler: use earlier the titanate coupling agent treatment inorganic filling material.5%NaOH solution is put in mineral filler, and 70 ℃ are soaked 30min, and it is neutral taking out and being washed till pH with clear water.Then, put it among the solution 200Kg of titanate coupling agent (contain titanate coupling agent 30Kg in the solution, strength of solution: titanate coupling agent is 15%WT), at room temperature soak 30min, filter, 90 ℃ of oven dry are stand-by.
(2) powder such as fluorocarbon resin, Resins, epoxy, nylon resin, composite curing agent are uniformly dispersed, drop into dual-screw-stem machine and melt extrude.The cryogenic freezing powder particle diameter is the 100-300 order again, adds the mineral filler of handling again and stirs the use of can constructing.
With the product of present embodiment be sprayed at pipeline inside and outside hold concurrently can, product uses detected result as follows:
Outward appearance: surfacing, color and luster are evenly, no bubble do not have the no shrinkage cavity of cracking: and sticking power (95 ± 2 ℃, 24h) 1 grade; Anti-
Shock strength: 15J; Cathodic disbonding (65 ℃, 48h): 7mm.Conform to quality requirements.
Embodiment 3,
| Composition | Resins, epoxy E12 | Fluorocarbon resin | Nylon resin 1212 | Aluminium zinc scale/iron mica/stainless steel flakes (handling) through titanate coupling agent | 4,4 '-diaminodiphenylsulfone(DDS)/certain herbaceous plants with big flowers diacid two hydrazides/Dyhard RU 100 |
| Weight (Kg) | 90 | 13 | 12 | 10/10/10 | ?2/6/4 |
The preparation method:
(1) processing of mineral filler: use earlier the titanate coupling agent treatment inorganic filling material.5%NaOH solution is put in mineral filler, and 70 ℃ are soaked 30min, and it is neutral taking out and being washed till pH with clear water.Then, put it among the solution 120Kg of titanate coupling agent (contain titanate coupling agent 18Kg in the solution, strength of solution: titanate coupling agent is 15%WT), at room temperature soak 30min, filter, 90 ℃ of oven dry are stand-by.
(2) powder such as fluorocarbon resin, Resins, epoxy, nylon resin, composite curing agent are uniformly dispersed, drop into dual-screw-stem machine and melt extrude.The cryogenic freezing powder particle diameter is the 100-300 order again, adds the mineral filler of handling again and stirs the use of can constructing.
The product of present embodiment is sprayed in the pipeline, and product uses detected result as follows:
Detected result: outward appearance: surfacing, color and luster are evenly, no bubble do not have the no shrinkage cavity of cracking: and sticking power (95 ± 2 ℃, 24h) 1 grade; Resistance to impact shock: 16J; Cathodic disbonding (65 ℃, 48h): 10mm.Conform to quality requirements.
Claims (2)
1. an anticorrosive pipeline paint is characterized in that component is as follows, is weight part:
90～115 parts of Resins, epoxy,
Fluorocarbon resin 5-15 part,
Nylon resin 5-15 part,
Mineral filler 10-40 part,
Solidifying agent 10-25 part;
Described mineral filler is one or more in aluminium zinc scale, iron mica, the stainless steel flakes;
Described mineral filler is to handle and get through following method: 5%NaOH solution is put in mineral filler, and 70 ℃ are soaked 30min, and it is neutral taking out and being washed till pH with clear water; Then, put it in the solution of titanate coupling agent, the titanate coupling agent quality that contains in the solution is 0.5～2 times of a mineral filler quality; Strength of solution: titanate coupling agent is the 10%-20% weight percent, at room temperature soaks 30min, filters, and 90 ℃ of oven dry are stand-by;
Described solidifying agent is 4,4 '-diaminodiphenylsulfone(DDS), sebacic dihydrazide, one or more in the Dyhard RU 100.
2. the preparation method of the described anticorrosive pipeline paint of claim 1, step is as follows:
Fluorocarbon resin, Resins, epoxy, nylon resin, solidifying agent powder are uniformly dispersed, drop into dual-screw-stem machine and melt extrude; Cryogenic freezing again, powder particle diameter is the 100-300 order, adds the mineral filler of handling again and stirs, and gets final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100454724A CN100419035C (en) | 2006-07-12 | 2006-07-12 | Anticorrosive pipeline paint and its prepn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100454724A CN100419035C (en) | 2006-07-12 | 2006-07-12 | Anticorrosive pipeline paint and its prepn |
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| Publication Number | Publication Date |
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| CN1887993A CN1887993A (en) | 2007-01-03 |
| CN100419035C true CN100419035C (en) | 2008-09-17 |
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| CNB2006100454724A Expired - Fee Related CN100419035C (en) | 2006-07-12 | 2006-07-12 | Anticorrosive pipeline paint and its prepn |
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| CN104364325A (en) * | 2012-06-13 | 2015-02-18 | 威士伯采购公司 | Low application temperature powder coating |
| CN103242718A (en) * | 2013-04-03 | 2013-08-14 | 广东电网公司电力科学研究院 | Titanate coupling agent modified pollution-flashover-preventing fluorocarbon paint and preparation method thereof |
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| CN105255324A (en) * | 2015-11-25 | 2016-01-20 | 蓬莱蔚阳新材料有限公司 | Hydrophobic and oleophobic coating with super-long durable corrosion resistance and low surface energy and preparation process of hydrophobic and oleophobic coating |
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Patent Citations (5)
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|---|---|---|---|---|
| CN1056510A (en) * | 1990-05-11 | 1991-11-27 | 西安航空电气公司 | Anticorrosive paint for underground water-injection steel pipe in oil field |
| JPH0718219A (en) * | 1993-06-30 | 1995-01-20 | Nippon Paint Co Ltd | Coating composition |
| CN1227241A (en) * | 1998-12-29 | 1999-09-01 | 中国科学院兰州化学物理研究所 | Room temperature solidified anti-sticking wear-resistant epoxy paint |
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| Publication number | Publication date |
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| CN1887993A (en) | 2007-01-03 |
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