CN104231716A - Industrial paint film separating agent and application thereof - Google Patents
Industrial paint film separating agent and application thereof Download PDFInfo
- Publication number
- CN104231716A CN104231716A CN201410496283.3A CN201410496283A CN104231716A CN 104231716 A CN104231716 A CN 104231716A CN 201410496283 A CN201410496283 A CN 201410496283A CN 104231716 A CN104231716 A CN 104231716A
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- acid
- agent
- membrane sepn
- paint film
- separating agent
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D9/00—Chemical paint or ink removers
- C09D9/04—Chemical paint or ink removers with surface-active agents
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses an industrial paint film separating agent and application thereof. The industrial paint film separating agent comprises the following components in percentage by weight: 50-75 percent of organic acid, 2-20 percent of alcohols, 0.5-5 percent of fatty alcohol-polyoxyethylene ether and alkylphenol ethoxylates, 0.5-2.5 percent of an anionic surfactant and 5-25 percent of water. According to the prepared separating agent disclosed by the invention, an acrylic ester paint film and epoxy paint films on the surface of a plastic part can be effectively removed and the damage to the plastic part is avoided. After the paint films on the surface of the plastic part are separated by using the separating agent, the surface of the plastic part is cleaned by using a plastic cleaning agent, so that the plastic part can be directly and continuously used as a spraying or printing substrate. The separating agent is mild in volatilization speed and can be reused.
Description
Technical field
The invention belongs to chemical coating field, be specifically related to the agent of a kind of industrial finish membrane sepn and application thereof.
Background technology
Along with popularization gradually and the use of plastic prod, increasing plastic prod starts to enter daily life, in production phase of plastic prod along with complete processing is increasingly sophisticated and appearance requirement more and more diversified, the coating that surface uses is variation all the more also, the fraction defective of the product brought is also more and more higher, in order to improve the living space of production plant, the process of bad product is also put gradually before each production company.Use and the mode such as manually to root out and remove old paint film, not only labor intensive, material resources, and can surface of plastic products be damaged.Carry out injection molding again after being had on surface the plastic component of coating to pulverize under normal conditions, although can recycle plastics, the coating of plastic part surface participates in reclaimed materials, will obviously affect color and the mechanical property of reclaimed materials.In view of this, be necessary to provide a kind of do not damage plastic basis material condition under can remove the industrial paint membrane sepn agent of paint film fast.
Patent of invention CN200510033449.9 discloses a kind of method of paint remover and removing frosting paint thereof, this paint remover is water, alcohols, Mierocrystalline cellulose and chaotropic agent sodium hydroxide, although use these class methods can remove the paint of plastic part surface, but need to be warmed up to 20-70 DEG C (better under 50 DEG C of conditions), its warming temperature is unfavorable for producing the actually operating of line, and energy consumption is higher is unfavorable for that production plant is produced on a large scale.
Patent of invention CN200810089759.6 discloses a kind of paint-remover composition, and said composition contains phenol, alcohol, water, and phenol content accounts for 6-11%, effectively can remove the old paint film of ABS/PC substrate surface, to base material not damaged.But phenol and compound thereof are one moderately toxic material.It can enter human body through number of ways such as skin, mucous membrane, respiratory tract and oral cavities, seepage force is strong, can invade inside of human body tissue, can cause systemic toxicity profiles, this paint-remover composition of life-time service is unfavorable for that a line operator's is healthy, brings great hidden danger to relating operation personnel.
The invention discloses a kind of main component is organic acid, water, alcohol, aliphatics Soxylat A 25-7, the composition of the paint film separating agent of alkylphenol polyoxyethylene (emulsifying agent) etc. and application, its paint removal efficiency is high, and without the need to heating, depainting can be completed at ambient temperature, belong to hypotoxicity product, be applicable to and industrial use.
Summary of the invention
Goal of the invention: the invention discloses the composition of a kind of industrial finish membrane sepn agent, preparation method and application, for coating or the ink of separation engineering frosting under softening at not burn into, not dissolve engineering plastics prerequisite.
Technical scheme: a kind of moisture paint film separating agent, by the organic acid of 50-85wt%, the alcohol of 2-20wt%, the nonionogenic tenside of 0.5-5.0wt%, 0.5-2.5wt% aniorfic surfactant, the water composition of 5-25wt%, to plastic basis material particularly engineering plastics base material as polymeric amide (PA), polyoxymethylene (POM), polycarbonate (PC), Noryl (MPPO), PMMA, ABS, AS, PC/ABS, polyester (PET and PBT), polyphenylene sulfide (PPS), polyimide (PI), polysulfones (PSF), polyetherketone (PEK), liquid crystalline polymerss (LCP) etc. are harmless, even but the polarity coating at room temperature got final product on effective separating plastic base material or ink layer.
Organic acid is the main component of described paint film separating agent, and its weight in described paint film separating agent accounts for the half or over half of described paint film separating agent gross weight.Described organic acid is low-molecular-weight organic acid, is at least one in formic acid, acetic acid, propionic acid, butyric acid, isopropylformic acid, valeric acid, isovaleric acid, oxalic acid, propanedioic acid, succinic acid, pentanedioic acid, adipic acid, oxyacetic acid, vinylformic acid, methacrylic acid, oxysuccinic acid, furancarboxylic acid, methylene-succinic acid, lactic acid, toxilic acid, phenylformic acid, toluylic acid, diacetyl oxide, maleic anhydride, Whitfield's ointment, pyruvic acid, Mono Chloro Acetic Acid, dichloro acetic acid, trichoroacetic acid(TCA);
Described alcohols is also low-molecular-weight alcohol, is at least one in methyl alcohol, ethanol, n-propyl alcohol, Virahol, propyl carbinol, isopropylcarbinol, ethylene glycol, propylene glycol, phenylcarbinol, phenylethyl alcohol.The organic acid that molecular weight is low and alcohol, have good osmosis to the paint film of polarity, simultaneously they also not burn into softening, do not dissolve the special engineering plastics of plastics.Described paint film separating agent can simultaneously containing methyl alcohol and phenylcarbinol, simultaneously containing ethanol and phenylcarbinol or simultaneously containing methyl alcohol, ethanol and phenylcarbinol; The ratio of methyl alcohol and ethanol sum and phenylcarbinol is between 10:5-10:0.1.
Described nonionogenic tenside is at least one in fatty alcohol-polyoxyethylene ether, alkylphenol polyoxyethylene, aliphatic amine polyoxyethylene ether, polyoxyethylene carboxylate; Preferably in described paint film separating agent, add fatty alcohol-polyoxyethylene ether and alkylphenol polyoxyethylene, the ratio of fatty alcohol-polyoxyethylene ether and alkylphenol polyoxyethylene is between 9:1-1:9 simultaneously.The osmosis of fatty alcohol-polyoxyethylene ether is stronger, and the emulsifying effect of alkylphenol polyoxyethylene is stronger, the composite use of the two, can obtain the infiltration to paint film or ink layer, infiltration, emulsification and centrifugation simultaneously.The fatty alcohol-polyoxyethylene ether of industry member referred to as JFC, JFC-1, JFC-E and JFC-2, the alkylphenol polyoxyethylene referred to as OP-4, OP-10, OP-20, OP-30 and OP-50, all can be used for the paint film separating agent described in preparing.The fatty alcohol-polyoxyethylene ether of these homologys and alkylphenol polyoxyethylene different in chemical structure and molecular weight.
Described aniorfic surfactant is described aniorfic surfactant is alkylbenzene sulfonate, alkylsulfonate, alkyl-sulphate, soap; Preferred straight-chain alkyl benzene sulfonic acid sodium salt and straight-chain alkyl sodium sulfonate.On the basis of above-mentioned nonionogenic tenside to paint film or ink layer effect, aniorfic surfactant will strengthen described paint film separating agent further to the emulsification of paint film or ink layer and centrifugation.
Described paint film separating agent, also can contain the carbonic ether of 0.5-5%, described carbonic ether is: at least one in methylcarbonate, diethyl carbonate, NSC 11801, vinylene carbonate, propylene carbonate, propylene carbonate, dipheryl carbonate base ester.Carbonic ether is for adjusting the polarity of described paint film separating agent and the wetting property to coating or ink layer, and carbonic ether has certain cleaning action and surface-active action to plastic part surface, and organic acid and alcohol can be assisted the infiltration of paint film and infiltration.In addition its toxicity is smaller, and boiling point is generally higher, and volatility is lower, can reduce the volatility of described paint film separating agent, extends the work-ing life of described paint film separating agent.But the consumption of carbonic ether in described paint film separating agent is unsuitable large, and the carbonic ether of excessive content (such as more than 10%), may corrode plastic basis material.
Described paint film separating agent, also can contain the superoxide of 0.25-2.5%; Described superoxide is at least one in hydrogen peroxide and Peracetic Acid.Superoxide to the paint film infiltrated or the molecular chain generating portion oxidative cleavage effect being subject to swelling stretching, thus may promote the separation of paint film further.Especially, can add Peracetic Acid at described paint film separating agent, Peracetic Acid both can produce infiltration, centrifugation to paint film or ink layer, simultaneously also may the effect of generating portion oxidative cleavage.
Described paint film separating agent, also can contain whiteruss, odor masking agent or flavouring agent.Whiteruss floats over the surface of described paint film separating agent, plays a part solvent evaporates in the paint film separating agent described in prevention.Adding odor masking agent or flavouring agent is offensive odour in order to eliminate described paint film separating agent, increases pleasant smell.
The polarity of described paint film separating agent is stronger, can be used for the polarity coating removing plastics particularly engineering plastic surface, as thermofixation or the esters of acrylic acid coating of ultraviolet light polymerization, epoxy coating, polyester coating, alkydpaints, polyurethane coating, nitro paint and their transformed lines show.
Beneficial effect: paint film separating agent disclosed by the invention effectively can be separated the polarity coating (or ink) removing plastic component particularly engineering plastic materials and parts surface, as thermofixation or the esters of acrylic acid coating of ultraviolet light polymerization, epoxy coating, polyester coating, alkydpaints, polyurethane coating, nitro paint and their transformed lines show, usually can obtain excellent separating effect within 24 hours.To plastic basis material not damaged.After paint film or ink layer are separated, with plastic component clean-out system, frosting is cleaned up and drying, make plastic component can continue to reclaim use, can directly be used as plastic basis material and carry out spraying or printing treatment.Paint film separating agent range of application disclosed by the invention is wider, evaporation rate is moderate, reusable, effectively can reclaim and spray bad or print bad plastic component, physics mode is avoided to carry out paint film separation and the damage of the plastic component caused, also avoid the paint film separating agent of other kind to the burn into of plastic component the detrimental effect such as softening and dissolving, reduce the cost and energy consumption that reclaim.
Embodiment
Below in conjunction with specific embodiment, the present invention will be described in detail.
Embodiment 1:
Prepare the industrial finish membrane sepn agent be made up of following component by weight: water is 10 parts, ethanol is 5 parts, and formic acid is 60 parts, referred to as the fatty alcohol-polyoxyethylene ether 1 part of JFC, the alkylphenol polyoxyethylene being called for short OP-4 is 1 part, Sodium dodecylbenzene sulfonate 1 part.
The preparation method of a kind of industrial finish membrane sepn agent: described separating agent, after water, ethanol, formic acid, mixing and stirring, adds aliphatics Soxylat A 25-7 JFC, alkylphenol polyoxyethylene OP-10 and Sodium dodecylbenzene sulfonate successively when stirring.
Obtained industrial finish membrane sepn agent, remove the esters of acrylic acid of engineering plastic surface, epoxies priming paint and varnish under being used in room temperature, 3-6 hours can obtain good paint film separating effect.
Embodiment 2:
In the formula of embodiment 1, continue to add NSC 11801, vinylene carbonate or propylene carbonate 2 parts.
Obtained industrial finish membrane sepn agent, can be used at room temperature removing quickly the esters of acrylic acid of engineering plastic surface, epoxies priming paint and varnish, 2-4 hours can obtain good paint film separating effect.
Embodiment 3:
The agent of preparation industrial finish membrane sepn, be made up of according to parts by weight following component: water is 15 parts, n-propyl alcohol is 10 parts, acetic acid 65 parts, fatty alcohol-polyoxyethylene ether JFC-1 is 1 part, and emulsifying agent is OP-10 is 1 part, Sodium dodecylbenzene sulfonate is 1 part, and methylcarbonate is 2 parts, Peracetic Acid 2 parts.
During preparation, after first water, n-propyl alcohol, acetic acid, Peracetic Acid being mixed, add aliphatics Soxylat A 25-7 JFC-1, alkylphenol polyoxyethylene OP-10, methylcarbonate, Sodium dodecylbenzene sulfonate successively, and stir.
Engineering plastics are removed as the esters of acrylic acid coating of the thermofixation on the surface of PC, ABS, PET and ink, polyurethanes coating and ink, epoxies priming paint and varnish under the paint film separating agent prepared can be used for room temperature, and the urethane acrylate class coating of photocuring and ink.In usual 24 hours can goods to good paint film or ink layer separating effect.
Specific embodiment 4:
Paint film separating agent is made up of according to parts by weight following component: water is 11 parts, Virahol is 6 parts, formic acid is 61 parts, fatty alcohol-polyoxyethylene ether JFC-E is 1.2 parts, alkylphenol polyoxyethylene OP-20 is 1.1 parts, Sodium dodecylbenzene sulfonate is 1.3 parts, propylene carbonate 1.5 parts, Peracetic Acid 2.0 parts, whiteruss 0.5 part, odor masking agent (can select the odor masking agent of water-borne coatings on the market, the present embodiment selects the osmanthus flower fragrant aqueous odor screening agent Silok-1022A of Si Luoke company) 0.5 part.
Preparation constantly, after water, Virahol, formic acid, Peracetic Acid are mixed, add aliphatics Soxylat A 25-7 JFC-E, alkylphenol polyoxyethylene OP-20, propylene carbonate ester, Sodium dodecylbenzene sulfonate successively, stir, finally add odor masking agent and whiteruss.
The paint film separating agent prepared can be used for esters of acrylic acid coating or ink, epoxy coating or ink, polyurethane coating or ink, polyester coating or the ink of at room temperature removing engineering plastic surface faster.Depend on coating or ink type, generally can obtain good paint film or ink layer separating effect in 2-24 hour.This paint film separating agent of engineering plastics moulding soaks 24 hours or 1 week, also can not be corroded or be out of shape.
Claims (10)
1. an industrial finish membrane sepn agent, is characterized in that: the organic acid containing 50-85wt%, the alcohol of 2-20wt%, the nonionogenic tenside of 0.5-5.0wt%, 0.5-2.5wt% aniorfic surfactant, the water of 5-25wt%.
2. industrial finish membrane sepn according to claim 1 agent, is characterized in that: described organic acid is at least one in formic acid, acetic acid, propionic acid, butyric acid, isopropylformic acid, valeric acid, isovaleric acid, oxalic acid, propanedioic acid, succinic acid, pentanedioic acid, adipic acid, oxyacetic acid, vinylformic acid, methacrylic acid, oxysuccinic acid, furancarboxylic acid, methylene-succinic acid, lactic acid, toxilic acid, phenylformic acid, toluylic acid, diacetyl oxide, maleic anhydride, Whitfield's ointment, pyruvic acid, Mono Chloro Acetic Acid, dichloro acetic acid, trichoroacetic acid(TCA).
3. industrial finish membrane sepn according to claim 1 agent, is characterized in that: described alcohols is at least one in methyl alcohol, ethanol, n-propyl alcohol, Virahol, propyl carbinol, isopropylcarbinol, ethylene glycol, propylene glycol, phenylcarbinol, phenylethyl alcohol.
4. industrial finish membrane sepn according to claim 1 agent, is characterized in that: described nonionogenic tenside is at least one in fatty alcohol-polyoxyethylene ether, alkylphenol polyoxyethylene, aliphatic amine polyoxyethylene ether, polyoxyethylene carboxylate; Preferably in described paint film separating agent, add fatty alcohol-polyoxyethylene ether and alkylphenol polyoxyethylene, the ratio of fatty alcohol-polyoxyethylene ether and alkylphenol polyoxyethylene is between 9:1-1:9 simultaneously.
5. industrial finish membrane sepn according to claim 1 agent, is characterized in that: described aniorfic surfactant is alkylbenzene sulfonate, alkylsulfonate, alkyl-sulphate, soap; Preferred straight-chain alkyl benzene sulfonic acid sodium salt and straight-chain alkyl sodium sulfonate.
6. industrial finish membrane sepn according to claim 1 agent, it is characterized in that: the carbonic ether also containing 0.5-5%, described carbonic ether is: at least one in methylcarbonate, diethyl carbonate, NSC 11801, vinylene carbonate, propylene carbonate, propylene carbonate, dipheryl carbonate base ester.
7. industrial finish membrane sepn according to claim 1 agent, is characterized in that: the superoxide also containing 0.25-2.5%; Described superoxide is at least one in hydrogen peroxide and Peracetic Acid.
8. the industrial finish membrane sepn agent according to claim 1 and 3, is characterized in that: simultaneously containing methyl alcohol and phenylcarbinol; Simultaneously containing ethanol and phenylcarbinol; Or simultaneously containing methyl alcohol, ethanol and phenylcarbinol; The ratio of methyl alcohol and ethanol sum and phenylcarbinol is between 10:5-10:0.1.
9. the industrial finish membrane sepn agent according to claim 1 and 4, is characterized in that: also can contain whiteruss, odor masking agent or flavouring agent.
10. the application of industrial finish membrane sepn according to claim 1 agent, is characterized in that: described industrial finish membrane sepn agent is for removing the polarity coating of engineering plastic surface: thermofixation or the esters of acrylic acid coating of ultraviolet light polymerization, epoxy coating, polyester coating, alkydpaints, polyurethane coating, nitro paint and their transformed lines show.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410496283.3A CN104231716B (en) | 2014-09-25 | 2014-09-25 | A kind of industrial finish UF membrane agent and application thereof |
| PCT/CN2015/084162 WO2016045435A1 (en) | 2014-09-25 | 2015-07-15 | Industrial paint film separating agent and use thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410496283.3A CN104231716B (en) | 2014-09-25 | 2014-09-25 | A kind of industrial finish UF membrane agent and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104231716A true CN104231716A (en) | 2014-12-24 |
| CN104231716B CN104231716B (en) | 2016-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410496283.3A Expired - Fee Related CN104231716B (en) | 2014-09-25 | 2014-09-25 | A kind of industrial finish UF membrane agent and application thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104231716B (en) |
| WO (1) | WO2016045435A1 (en) |
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| CN105295510A (en) * | 2015-11-19 | 2016-02-03 | 苏州捷德瑞精密机械有限公司 | Eco-friendly aqueous paint remover and preparation method thereof |
| WO2016045435A1 (en) * | 2014-09-25 | 2016-03-31 | 南通万德科技有限公司 | Industrial paint film separating agent and use thereof |
| CN106519781A (en) * | 2016-11-15 | 2017-03-22 | 广东石油化工学院 | Preparation method and use of powdery coating removal composition |
| CN106590142A (en) * | 2016-12-29 | 2017-04-26 | 义乌市中科院兰州化物所功能材料中心 | Water-based paint remover applied to zipper production and preparation method thereof |
| CN106800814A (en) * | 2016-12-22 | 2017-06-06 | 当涂县宏宇金属炉料有限责任公司 | A kind of stripping method of waste metal material |
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| CN105295510A (en) * | 2015-11-19 | 2016-02-03 | 苏州捷德瑞精密机械有限公司 | Eco-friendly aqueous paint remover and preparation method thereof |
| WO2018000238A1 (en) * | 2016-06-29 | 2018-01-04 | 深圳市盈恒科技有限公司 | Solvent-based paint remover, use thereof and method for removing paint from workpiece |
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| CN107286727A (en) * | 2017-06-28 | 2017-10-24 | 常州文诺纺织品有限公司 | A kind of watery paint remover and preparation method thereof |
| CN109517429A (en) * | 2017-09-20 | 2019-03-26 | 蓝思科技（长沙）有限公司 | For stripping the deinking agent, aluminium alloy spraying clamp tool deinking process and aluminium alloy spraying clamp tool of aluminium alloy spraying clamp tool ink |
| CN109517429B (en) * | 2017-09-20 | 2022-02-08 | 蓝思科技（长沙）有限公司 | Deinking agent for removing ink of aluminum alloy spraying clamp jig, deinking process of aluminum alloy spraying clamp jig and aluminum alloy spraying clamp jig |
| CN107619621A (en) * | 2017-10-11 | 2018-01-23 | 厦门大学 | A kind of clothing ink blok removes composition |
| CN115093742A (en) * | 2022-07-16 | 2022-09-23 | 任彭 | Paint removing liquid and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104231716B (en) | 2016-08-24 |
| WO2016045435A1 (en) | 2016-03-31 |
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