CN101792622A - Dispensing viscosity adjustable neutral potent water-soluble paint stripper - Google Patents
Dispensing viscosity adjustable neutral potent water-soluble paint stripper Download PDFInfo
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- CN101792622A CN101792622A CN 201010122482 CN201010122482A CN101792622A CN 101792622 A CN101792622 A CN 101792622A CN 201010122482 CN201010122482 CN 201010122482 CN 201010122482 A CN201010122482 A CN 201010122482A CN 101792622 A CN101792622 A CN 101792622A
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- paint stripper
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- soluble paint
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Abstract
The invention discloses a dispensing viscosity adjustable neutral potent water-soluble paint stripper, which is characterized by comprising the following raw materials based on the mass of 1 kilogram: 100 to 600 milliliters of methylene dichloride, 100 to 600 milliliters of phenol, 50 to 400 milliliters of weakly alkaline deionized water solution, 1 to 10 grams of industrial paraffin, 1 to 15 milliliters of surfactant and 1 to 50 grams of thickening agent, wherein the raw materials can be used by uniform mixing. The dispensing viscosity adjustable neutral potent water-soluble paint stripper has the technical effects that the neutral potent water-soluble paint stripper for stripping an airplane coat is particularly suitable for stripping a high-crossed solvent type epoxy or polyurethane or fluorinated polyurethane coat, and can be directly coated on the surface of a common composite materials of metal material, anodized aluminium, metal plating layer and glass fiber reinforced plastics, carbon fiber and the like for airplanes; and the paint stripping surface after using the paint stripper can be directly recoated after cleaning with a proper solvent and drying, the paint film bonding force is not affected, the repair process is simplified, and the repair cost is saved.
Description
Technical field
The present invention relates to a kind of potent water-soluble paint stripper, relate in particular to the adjustable neutral potent water-soluble paint stripper of a kind of dispensing viscosity.
Background technology
Aircraft will stand the long-term test of different weathers and environment all over the world, and coating is the suitable protective material of aircraft.Aircraft is after the long-time flight of process, and the top layer paint film is impaired, needs the regular maintenance renovation.The complete machine depainting is a big engineering, and the oxide film or the coating of expectation base material is not damaged behind the depainting, directly application again behind suitable cleaning-drying, and the paint film bonding force is unaffected, improves renovation efficient.The depainting of aircraft is normally finished under the paint remover effect, the paint remover of usefulness is mainly formulated by organic solvent at present, it is by organism swollen principle, rely on solvent to be penetrated in the paint film, it is expanded, reduced the sticking power of paint film and matrix, make paint film bulging from the base material, split away off, through cleaning down paint film is removed fully from substrate surface again.The paint remover paint stripping rate is fast, can save a large amount of manpowers, raises the efficiency, and the paint remover of excellent property is to the very little even not damaged of the damage of the base material under the paint film, and therefore paint remover is widely used always in the aircraft maintenance process.
Aircraft coating is that minority requires one of harsh industrial sector, and the coating of selecting for use must just can be used for aircraft by international airworthiness standard, and highly cross-linked often dual-component coating belongs to the class in the most difficult coating of peeling off removal.Aircraft is to be in to stop a state when safeguarding, the coating renovation time comprises depainting, sprays paint and dry three parts, and each renovation generally will stop times 6～7 days, and this will make the repayment in airline every year reduce more than 100,000 dollars.Therefore, the time of depainting should reduce as much as possible, reduces and to stop loss that airline is caused, and the paint stripping rate of paint remover has been proposed higher requirement.
The research of paint remover mainly concentrates on behind depainting efficient, the depainting the aftertreatment of base material and the paint remover key issues such as adaptability to base material.The effect of main solvent and promotor has determined the efficient of paint remover.The paint remover of development require can be in 90 minutes swelling come off aircraft about 25 microns with epoxy or polyurethanes coating, and can not cause damage to non-ferrous metal or ferrous metal base material, therefore the paint remover pH value of preparation in neutrality for well.Numerous discovering, kind solvents such as alcohol, ether, ketone, ester replacement methylene dichloride can reduce the pollution to environment, but depainting efficient differs greatly, especially for epoxy or polyurethanes paint film, under the situation of not using methylene dichloride, its depainting time can extend to several hrs even several days from several minutes, and this has announced that undoubtedly aircraft stops the prolongation of field time.Weigh the advantages and disadvantages, producer more is ready to accept have preferably, and volatilization inhibitor can stop methylene dichloride evaporable efficient paint remover.
Experimental results show that, add auxiliary agents such as entry, tensio-active agent, volatilization inhibitor or thickening material in the organic solvent paint remover, can limit the content and the volatilization of Poison, to the preparation of paint remover, storage time length and workability produce very big influence, greatly improve production technique and product performance.
Present method is from the angle of environmental protection, simple, the chemical raw material convenient sources of composition has been proposed, can adjust system viscosity according to service requirements, can not cause infection to aircraft alumite or metallic matrix commonly used, to epoxy or the polyurethanes crosslinking curing type paint film removal efficiency height that aircraft homemade or the part import is used, a kind of neutral potent water-soluble paint stripper that behind high pressure water or suitable solvent cleaning-drying, can directly carry out application again.
Summary of the invention
The object of the present invention is to provide the adjustable neutral potent water-soluble paint stripper of a kind of dispensing viscosity, methylcellulose gum and/or Vltra tears usage ratio can be regulated, and change the viscosity of paint remover, satisfy the user demand of different surfaces.
The present invention is achieved like this, it is characterized in that comprising following raw materials according, calculate by quality 1kg: the weakly alkaline deionized water solution of 100～600ml methylene dichloride, 100～600ml phenol, 50～400ml, the industrial paraffin of 1～10g, the tensio-active agent of 1～15ml, 1～50g thickening material, can use the above-mentioned raw materials uniform mixing.
Described tensio-active agent is selected from nonionogenic tenside.
Described thickening material is one or both mixtures of methylcellulose gum, Vltra tears.
The content of described alkaline deionized water solution is at most 30%.
Implementation method step of the present invention is:
(1) method of employing organic analysis tentatively obtains to form the basal component of main solvent, promotor, part of auxiliary and the inhibition volatilizer of paint remover.
(2) main solvent in the paint remover and promotor are screened, the test all kinds of SOLVENTS is to the adaptability of target paint film, by solvent complex, obtains the good mixed solvent of paint film adaptability as main solvent or promotor.
(3) adding of tensio-active agent and water can make wax be evenly dispersed in the paint remover, has improved the stability of paint remover, and helps the cleaning behind the depainting.
(4) use water-soluble and/or the oil soluble thickening material can obtain the composition of higher moisture, improved the water-retentivity of paint remover, add Action of Surfactant, make solvent and water form stable emulsified soln, improved paint remover stability in storage and workability.Suitably adjust both or wherein a kind of thickening material consumption, can obtain to use viscosity different at vertical surface or horizontal plane, and the impregnable effect of coating removal speed.
The result is, when replacing analytical pure methylcellulose gum-450 with commercially available technical grade methylcellulose gum, consumption reduces half, paint remover viscosity is improved obviously, be easy to wall built-up and brushing, stability in storage improves, and can produce the best paint removing effect that equates with methylcellulose gum-450 on sale on the use market.
Technique effect of the present invention is: this aircraft coating of peeling off, be particularly suitable for peeling off the neutral potent water-soluble paint stripper that highly cross-linked solvent-borne type epoxy or urethane or fluoride polyurethane coating are used, can directly brush at composite material surfaces such as aircraft metallic substance, anodized aluminum, metal plating and glass reinforced plastic commonly used, carbon fibers, adjustment by thickening material proportioning consumption, change viscosity, be applicable to fuselage different sites such as bottom or vertical surface.Use the coating removal surface behind this paint remover, can directly carry out application again after suitable solvent cleaning drying, the paint film bonding force is unaffected, has simplified and has reprocessed operation, saves and reprocesses cost.
Embodiment
Embodiment 1
The component and the content of paint remover are as follows: industrial paraffin 6g/kg, weakly alkaline deionized water solution 250ml/kg, Si Ben-80 and tween-80 (4: 1) 10ml/kg, methylcellulose gum M45030g/kg, phenol 300ml/kg, methylene dichloride 300ml/kg, can use the above-mentioned raw materials uniform mixing.
pH：7.8±0.5
Embodiment 2
The component and the content of paint remover are as follows: industrial paraffin 6g/kg, Si Ben-80 and tween-80 (3: 1) 10ml/kg, weakly alkaline deionized water solution 250ml/kg, methylcellulose gum M45030g/kg, phenol 300ml/kg, methylene dichloride 300ml/kg.The above-mentioned raw materials uniform mixing can be used.
pH：7.8±0.5
Embodiment 3
The component and the content of paint remover are as follows: industrial paraffin 6g/kg, OP emulsifying agent 10ml/kg, weakly alkaline deionized water solution 200ml/kg, methylcellulose gum M45030g/kg, phenol 300ml/kg, methylene dichloride 340ml/kg.The above-mentioned raw materials uniform mixing can be used.
pH：7.2±0.5
Embodiment 4
The component and the content of paint remover are as follows: industrial paraffin 6g/kg, OP emulsifying agent 5ml/kg, weakly alkaline deionized water solution 200ml/kg, methylcellulose gum M45030g/kg, phenol 300ml/kg, methylene dichloride 340ml/kg.The above-mentioned raw materials uniform mixing can be used.
pH：7.2±0.5
Embodiment 5
The component and the content of paint remover are as follows: industrial paraffin 6g/kg, OP emulsifying agent 5ml/kg, weakly alkaline deionized water solution 200ml/kg, methylcellulose gum M45020g/kg, Vltra tears 10g/kg, phenol 300ml/kg, methylene dichloride 340ml/kg.The above-mentioned raw materials uniform mixing can be used.
pH：7.2±0.5
Embodiment 6
The component and the content of paint remover are as follows: industrial paraffin 6g/kg, OP emulsifying agent 4.5ml/kg, weakly alkaline deionized water solution 250ml/kg, methylcellulose gum M45020g/kg, Vltra tears 10g/kg, phenol 300ml/kg, methylene dichloride 300ml/kg.The above-mentioned raw materials uniform mixing can be used.
pH：7.8±0.5
Embodiment 7
Except that SILVER REAGENT methylcellulose gum M450 and Vltra tears substitute with commercially available technical grade, and the methylcellulose gum consumption reduces by half, and repeats embodiment 6.Paint stripping rate is unaffected, and the stability in storage of paint remover improves, and is easy to brush application.
Service requirements difference according to the depainting object, suitably adjust both or wherein a kind of thickening material consumption, paint remover with suitability for industrialized production embodiment 7 is applied to clean article surface in the mode of brushing, and evenly brushing, after treating that paint film big area swelling is heaved, clear up with polypropylene hard mane brush, non-metallic doctor, brass wire brush, and residue is wiped.Through washing, can remove the paint film of taking off easily, compare with the paint remover that uses single thickening material, more uniform stripping action is arranged, can keep powerful paint removing effect.
Claims (4)
1. neutral potent water-soluble paint stripper that dispensing viscosity is adjustable, it is characterized in that comprising following raw materials according, calculate by quality 1kg: the weakly alkaline deionized water solution of 100～600ml methylene dichloride, 100～600ml phenol, 50～400ml, the industrial paraffin of 1～10g, the tensio-active agent of 1～15ml, 1～50g thickening material, can use the above-mentioned raw materials uniform mixing.
2. the neutral potent water-soluble paint stripper that dispensing viscosity according to claim 1 is adjustable is characterized in that described tensio-active agent is selected from nonionogenic tenside.
3. the neutral potent water-soluble paint stripper that dispensing viscosity according to claim 1 is adjustable is characterized in that described thickening material is one or both mixtures of methylcellulose gum, Vltra tears.
4. the neutral potent water-soluble paint stripper that dispensing viscosity according to claim 1 is adjustable is characterized in that the content of described alkaline deionized water solution is at most 30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010122482 CN101792622A (en) | 2010-03-11 | 2010-03-11 | Dispensing viscosity adjustable neutral potent water-soluble paint stripper |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010122482 CN101792622A (en) | 2010-03-11 | 2010-03-11 | Dispensing viscosity adjustable neutral potent water-soluble paint stripper |
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| CN101792622A true CN101792622A (en) | 2010-08-04 |
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| CN 201010122482 Pending CN101792622A (en) | 2010-03-11 | 2010-03-11 | Dispensing viscosity adjustable neutral potent water-soluble paint stripper |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105295513A (en) * | 2015-12-03 | 2016-02-03 | 关勇河 | Water soluble paint remover |
| CN112143894A (en) * | 2019-06-28 | 2020-12-29 | 铜陵富翔铜再生循环利用有限公司 | Method for recovering copper from waste enameled wire |
| CN115178543A (en) * | 2022-07-22 | 2022-10-14 | 东风柳州汽车有限公司 | Cleaning method for water-based paint conveying system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629036A (en) * | 2009-08-24 | 2010-01-20 | 长沙艾森设备维护技术有限公司 | Powerful paint stripper |
-
2010
- 2010-03-11 CN CN 201010122482 patent/CN101792622A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629036A (en) * | 2009-08-24 | 2010-01-20 | 长沙艾森设备维护技术有限公司 | Powerful paint stripper |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105295513A (en) * | 2015-12-03 | 2016-02-03 | 关勇河 | Water soluble paint remover |
| CN112143894A (en) * | 2019-06-28 | 2020-12-29 | 铜陵富翔铜再生循环利用有限公司 | Method for recovering copper from waste enameled wire |
| CN115178543A (en) * | 2022-07-22 | 2022-10-14 | 东风柳州汽车有限公司 | Cleaning method for water-based paint conveying system |
| CN115178543B (en) * | 2022-07-22 | 2023-08-18 | 东风柳州汽车有限公司 | Cleaning method of water-based paint conveying system |
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Open date: 20100804 |