CN107760180A - A kind of useless paint processing method of furniture paint spraying - Google Patents

A kind of useless paint processing method of furniture paint spraying Download PDF

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Publication number
CN107760180A
CN107760180A CN201710862625.2A CN201710862625A CN107760180A CN 107760180 A CN107760180 A CN 107760180A CN 201710862625 A CN201710862625 A CN 201710862625A CN 107760180 A CN107760180 A CN 107760180A
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Prior art keywords
paint
useless
added
processing method
antiseptic
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何为
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Zhejiang Dingfeng Furniture Co Ltd
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Zhejiang Dingfeng Furniture Co Ltd
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Priority to CN201710862625.2A priority Critical patent/CN107760180A/en
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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
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • 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 a kind of useless paint processing method of furniture paint spraying, its drip irrigation device is to collect first, dissolve useless paint；Suspension is removed, then filtration treatment is carried out to useless paint, obtains filtered fluid；Antiseptic is added in filtered fluid, then filtered fluid is placed under uviol lamp and irradiated；Then filtered fluid is dried, cooled down, add polyurethane aqueous dispersions and deionized water carries out secondary dissolving, add anti-wear agent, dispersant, levelling agent, film forming agent, thickener, stirred with mixer, antiseptic, defoamer and optical brightener are added, buffer regulation pH value is eventually adding and is recycled paint.By adding antiseptic in paint vehicle, with with ultra violet lamp, remove microorganism, then paint vehicle is dried, cooled down, paint vehicle is subjected to secondary dissolving, polyurethane aqueous dispersions and excessive deionized water is added, paint vehicle is completely dissolved and adds various auxiliary agents, so that paint vehicle recovers original characteristic again, and also there is good antibacterial action.

Description

A kind of useless paint processing method of furniture paint spraying
Technical field
The present invention relates to a kind of coating recovery method, the paint processing of more particularly to a kind of furniture paint spraying Method.
Background technology
Coating, in the entitled paint of Chinese tradition.So-called coating is to be coated in the body surface protected or decorated, and The continuous film of firm attachment can be formed with coated article, typically based on resin or oil or emulsion, add or do not add pigment, Filler, add corresponding additive, the thick liquid being formulated with organic solvent or water.
Water paint is that a kind of relatively new type coating, its feature include on Coating Market, first：Water paint is with water As solvent, ample resources is saved, eliminates fire risk during construction, reduces the pollution to air；Water paint Only with a small amount of hypotoxicity alcohol ethers organic solvent, operating environmental condition is improved；Second：Water paint is in wet structure and humidity Construction can be directly coated in environment；Water paint is good to material surface adaptability, and coating adhesion is strong；Feature three：Water-based painting Material coating tool can wash by water, and greatly reduce the consumption of cleaning solvent.By feat of it is so many advantages of, water paint is applying Material in the market enjoys the favor of customer.
Substantial amounts of water paint is sold out, and is widely used in the industries such as furniture, building, while in use Also there is substantial amounts of useless paint, but after traditional useless paint processing method is handled, the color of regenerant can not change, purity not Height, the advantages of without former water paint, it can not be reused for spraying, largely useless paint lies on the table, wasted, and causes huge warp Ji loss.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to provide a kind of furniture paint suitable for water paint The useless paint processing method of spraying.
To achieve the above object, the invention provides following technical scheme：A kind of useless paint processing side of furniture paint spraying Method, comprise the steps to form：
Step 1：Useless paint is collected with waste liquid barrel, then the useless paint of collection is poured into large beaker, added in large beaker The deionized water of amount, it is completely dissolved useless paint；
Step 2：After standing 4-5 hours, the suspension for swimming in lacquer surface is removed, with microfiltration membranes to useless paint after removing Filtration treatment is carried out, filter 23 is repeated, obtains filtered fluid；
Step 3：3-5 grams of antiseptic is added in filtered fluid, solution temperature is arranged to 40-60 DEG C, while uses mixer It is stirred, mixing speed 100-200r/min, mixing time 10-20min；
Step 4：Then filtered fluid is placed on irradiation 2-3 hours under uviol lamp；
Step 5：Filtered fluid is dried with baking oven, oven temperature is arranged to 80-100 DEG C, and drying time is that 1-2 is small When；
Step 6：After terminating drying, room temperature is naturally cooled to, polyurethane aqueous dispersions is added and deionized water is carried out Secondary dissolving, polyurethane aqueous dispersions with drying after paint vehicle mass ratio be 3: 2, add polyurethane aqueous dispersions and While deionized water, it is stirred with mixer, mixing speed 200-300r/min, mixing time is 30-60 minutes；
Step 7：Anti-wear agent, dispersant, levelling agent, film forming agent, thickener are added, is stirred with mixer, stirring speed Spend for 600-800r/min, mixing time is 2-3 hours, dosage be respectively paint vehicle quality after drying 1.6%, 0.5%, 0.4%th, 0.3%, 0.2%；
Step 8：Antiseptic, defoamer and optical brightener are added, is stirred with mixer, mixing speed 300- 400r/min, mixing time are 1-2 hours, and dosage is respectively 0.3%, 0.2% and 0.5% of paint vehicle quality after drying；
Step 9：It is eventually adding buffer regulation pH value and is recycled paint；
The anti-wear agent is four (trimethylsiloxy group) silane, dihydroxy Phosphoric acid monohexadecyl ester sodium, N- methyl-N- (trimethyls Silylation) trifluoroacetamide, the mixture of hexadecyl trimethoxy silane, each component mass ratio be 1: 1: 2: 2.
The antiseptic is silver molecular sieve, and the molecular sieve forms including following weight parts：
Ludox：5 parts
3- isocyanide propyl-triethoxysilicanes：0.5 part
Lagoriolite：0.3 part
Alchlor：4 parts
Sodium oxide molybdena：2-5 parts
4- cyano-phenyl isothiocyanates 0.5-1 parts
Water：100 parts；
The preparation method of the molecular sieve：The ratio of being first according to weighs up raw material, then first by 3- isocyanide propyl triethoxies Silane, lagoriolite, alchlor are dissolved in Ludox, and sodium oxide molybdena is dissolved in into water, are then all added in autoclave, then 4- cyano-phenyl isothiocyanates is added, after mixing, is heated 2-4 hours, heating-up temperature is 150-200 DEG C, after heating, cooling To room temperature, product is separated, washed, dry after obtain carrier original powder, carrier original powder is subjected to calcination again afterwards, obtains molecule Sieve.
The preparation method of the antiseptic is：Silver nitrate is dissolved in deionized water first, it is 15% to form mass fraction Silver nitrate aqueous solution, then according to the ratio that the mass ratio of solution and molecular sieve is 9: 1, added into silver nitrate aqueous solution certain Molecular sieve, with rotating speed be 200-300r/min mixer mix 30-60 minutes, carry out centrifugal treating, be finally putting into 80-100 DEG C of baking oven heat treatment 4-6 hours, silver molecular sieve is made.The dispersant is double (2- chloroethyls) ether, hexadecane The mixture of base trimethyl ammonium hexafluorophosphate, vinyl bis-stearamides and PhosphorodichloridicAcid Acid Phenyl Ester, its mass ratio are 1: 2: 2: 1。
The levelling agent is isopropyl trimethylsilyl ethers and double [2- (trimethylsiloxy group) ethyl] ethers and N- (β-ammonia second Base)-γ-aminopropyltriethoxy dimethoxysilane mixture, its mass ratio be 2: 1: 1.
The film forming agent is ester gum and the mixture of trimethyl hydroxyl amylalcohol isobutyrate and alcohol ester 12, its quality Than for 1: 2: 0.5.
The thickener is hydroxyethyl cellulose.
The defoamer is the mixture of dimethicone and tetramethyl divinyl disiloxane, and its mass ratio is 2: 1. The optical brightener is the mixture of 3- glycydoxies triethoxysilane and dimethyl silicone polymer, its mass ratio For 1: 1.
The buffer forms including following parts by volume：
Concentration is 0.2mol/L 5.3 parts of sodium dihydrogen phosphate；
Concentration is 0.2mol/L 94.7 parts of dibastic sodium phosphate.
Beneficial effects of the present invention：When reclaiming coating, waste liquid barrel collects the remaining paint vehicle in work progress first, Work progress, many particulate matters can enter in paint vehicle, so be first completely dissolved paint vehicle with deionized water, after being completely dissolved, Many particulate matters can slowly swim in lacquer surface because density is smaller with the time, now remove these floating objects, gone back in solution There are many other particle objects, paint vehicle is filtered with micro-filtration net, filter 23, the aperture of micro-filtration net reduces successively, thus Finely ground particle substance can be removed；But because the time that useless paint is placed is longer, particularly water paint is useless paints, it is easy to nourishes out Various microorganisms, this filtering can not be removed, therefore a certain amount of antiseptic is added in paint vehicle, be eliminated most of micro- Biology, then with ultra violet lamp, further kill microorganism, the microorganism in paint vehicle is removed substantially, then again with baking oven pair Paint vehicle is dried, and using comparatively gentle drying mode, is prevented some materials in paint vehicle to be heated volatilization, is dried meeting Solvent in paint vehicle is evaporated；After drying terminates, paint vehicle is cooled to room temperature, and paint vehicle is carried out into secondary dissolving, adds polyurethane water Property dispersion and excessive deionized water, paint vehicle is completely dissolved, and stirred with mixer, then add various help at twice Agent so that paint vehicle recovers original characteristic again, and also has good antibacterial action.
The anti-wear agent that the present invention uses is four (trimethylsiloxy group) silane, dihydroxy Phosphoric acid monohexadecyl ester sodium, N- methyl-N- (trimethylsilyl) trifluoroacetamide, the mixture of hexadecyl trimethoxy silane, wherein it is organic silicon to have 3 kinds of materials Material, generally, organic silicon material can improve to the wearability of coating, the phase of these three organosilicon materials Mutually coordinate, it is possible to greatly improve the anti-wear performance of coating, while under acid or alkalescence condition, anti-wear performance is basic Keep constant, ensure that coating, also can normal use under acid or alkalescence condition；Dihydroxy Phosphoric acid monohexadecyl ester sodium can be to this Three kinds of organic silicon materials play a good mediation effect, meanwhile, its own raising to Wear Resistance of Coating has necessarily Help, can also play a solubilized effect, promote the dissolubility of other materials；N- methyl-N- (trimethylsilyl) Trifluoroacetamide also has certain antibacterial action, ensure that the water paint is not easy cooperating microorganisms, it is ensured that coating can be normal Work；In the selection of antiseptic, from the pretty good zeolite silver of antibacterial effect on the market because zeolite silver be difficult and other Material phased soln, and all well and good silver molecular sieve of antibacterial effect is selected, the antiseptic not only has good antibacterial effect, together When can also be mixed well with other materials, it is mutually coordinated, mutually promote, serve a good antibacterial effect；Dispersant What is selected is double (2- chloroethyls) ether, cetyl trimethyl ammonium hexafluorophosphate, vinyl bis-stearamides and dichloride phosphoric acid The mixture of phenyl ester composition, the mutually coordinated cooperation of these three materials have been greatly facilitated material particles and have been dispersed in medium, shape Into stable suspension, the relatively stable of dispersion ensure that, it is ensured that each material can play its characteristic, enable coating just Often use, while cetyl trimethyl ammonium hexafluorophosphate also strengthens the anti-microbial property of whole coating；Levelling agent select be Isopropyl trimethylsilyl ethers and double [2- (trimethylsiloxy group) ethyl] ethers and N- (β-aminoethyl)-γ-aminopropyltriethoxy diformazan The mixture of TMOS, these three materials mutually act synergistically, and can play good levelling effect, while also can further add The anti-wear performance and resistance to acids and bases of strong coating；What film forming agent was selected is ester gum and trimethyl hydroxyl amylalcohol isobutyrate and alcohol The mixture of ester 12, these three materials can play good filming function after cooperating；What defoamer was selected is dimethyl On the one hand the mixture of silicone oil and tetramethyl divinyl disiloxane, both materials can play good defoaming effect, together When raising also to Wear Resistance of Coating have certain help；The optical brightener selection is 3- glycydoxies three The mixture of Ethoxysilane and dimethyl silicone polymer, after both material mixings, good light enhancing effect can be played, makes paint Material recovers original color and luster, has good brightness, it helps improve the anti-wear performance of coating；What final buffer agent was selected Sodium dihydrogen phosphate and the concentration for being 0.2mol/L are the mixed solution of 0.2mol/L dibastic sodium phosphate, rather than simply select strong acid Or strong base solution, because strong acid or highly basic may react with some materials in coating, so as to the performance to coating Affect, this buffer avoids this unexpected generation, some materials in coating will not be reacted, again It can guarantee that the stability of overall water paint.
Embodiment
Embodiment 1：A kind of useless paint processing method of furniture paint spraying, it is characterised in that：Comprise the steps to form：
Step 1：Useless paint is collected with waste liquid barrel, then the useless paint of collection is poured into large beaker, added in large beaker The deionized water of amount, it is completely dissolved useless paint；
Step 2：After standing 4-5 hours, the suspension for swimming in lacquer surface is removed, with microfiltration membranes to useless paint after removing Filtration treatment is carried out, filter 23 is repeated, obtains filtered fluid；
Step 3：3-5 grams of antiseptic is added in filtered fluid, solution temperature is arranged to 40-60 DEG C, while uses mixer It is stirred, mixing speed 100-200r/min, mixing time 10-20min；
Step 4：Then filtered fluid is placed on irradiation 2-3 hours under uviol lamp；
Step 5：Filtered fluid is dried with baking oven, oven temperature is arranged to 80-100 DEG C, and drying time is that 1-2 is small When；
Step 6：After terminating drying, room temperature is naturally cooled to, polyurethane aqueous dispersions is added and deionized water is carried out Secondary dissolving, polyurethane aqueous dispersions with drying after paint vehicle mass ratio be 3: 2, add polyurethane aqueous dispersions and While deionized water, it is stirred with mixer, mixing speed 200-300r/min, mixing time is 30-60 minutes；
Step 7：Anti-wear agent, dispersant, levelling agent, film forming agent, thickener are added, is stirred with mixer, stirring speed Spend for 600-800r/min, mixing time is 2-3 hours, dosage be respectively paint vehicle quality after drying 1.6%, 0.5%, 0.4%th, 0.3%, 0.2%；
Step 8：Antiseptic, defoamer and optical brightener are added, is stirred with mixer, mixing speed 300- 400r/min, mixing time are 1-2 hours, and dosage is respectively 0.3%, 0.2% and 0.5% of paint vehicle quality after drying；
Step 9：It is eventually adding buffer regulation pH value and is recycled paint；
The anti-wear agent is four (trimethylsiloxy group) silane, dihydroxy Phosphoric acid monohexadecyl ester sodium, N- methyl-N- (trimethyls Silylation) trifluoroacetamide, the mixture of hexadecyl trimethoxy silane, each component mass ratio be 1: 1: 2: 2.
The antiseptic is silver molecular sieve, and the molecular sieve forms including following weight parts：
Ludox：5 parts
3- isocyanide propyl-triethoxysilicanes：0.5 part
Lagoriolite：0.3 part
Alchlor：4 parts
Sodium oxide molybdena：2-5 parts
4- cyano-phenyl isothiocyanates 0.5-1 parts
Water：100 parts；
The preparation method of the molecular sieve：The ratio of being first according to weighs up raw material, then first by 3- isocyanide propyl triethoxies Silane, lagoriolite, alchlor are dissolved in Ludox, and sodium oxide molybdena is dissolved in into water, are then all added in autoclave, then 4- cyano-phenyl isothiocyanates is added, after mixing, is heated 2-4 hours, heating-up temperature is 150-200 DEG C, after heating, cooling To room temperature, product is separated, washed, dry after obtain carrier original powder, carrier original powder is subjected to calcination again afterwards, obtains molecule Sieve.
The preparation method of the antiseptic is：Silver nitrate is dissolved in deionized water first, it is 15% to form mass fraction Silver nitrate aqueous solution, then according to the ratio that the mass ratio of solution and molecular sieve is 9: 1, added into silver nitrate aqueous solution certain Molecular sieve, with rotating speed be 200-300r/min mixer mix 30-60 minutes, carry out centrifugal treating, be finally putting into 80-100 DEG C of baking oven heat treatment 4-6 hours, silver molecular sieve is made.The dispersant is double (2- chloroethyls) ether, hexadecane The mixture of base trimethyl ammonium hexafluorophosphate, vinyl bis-stearamides and PhosphorodichloridicAcid Acid Phenyl Ester, its mass ratio are 1: 2: 2: 1。
The levelling agent is isopropyl trimethylsilyl ethers and double [2- (trimethylsiloxy group) ethyl] ethers and N- (β-ammonia second Base)-γ-aminopropyltriethoxy dimethoxysilane mixture, its mass ratio be 2: 1: 1.
The film forming agent is ester gum and the mixture of trimethyl hydroxyl amylalcohol isobutyrate and alcohol ester 12, its quality Than for 1: 2: 0.5.
The thickener is hydroxyethyl cellulose.
The defoamer is the mixture of dimethicone and tetramethyl divinyl disiloxane, and its mass ratio is 2: 1. The optical brightener is the mixture of 3- glycydoxies triethoxysilane and dimethyl silicone polymer, its mass ratio For 1: 1.
The buffer forms including following parts by volume：
Concentration is 0.2mol/L 5.3 parts of sodium dihydrogen phosphate；
Concentration is 0.2mol/L 94.7 parts of dibastic sodium phosphate.
Embodiment 2：
1st, the useless paint processing method of a kind of furniture paint spraying, it is characterised in that：Comprise the steps to form：
Step 1：Useless paint is collected with waste liquid barrel, then the useless paint of collection is poured into large beaker, added in large beaker The deionized water of amount, it is completely dissolved useless paint；
Step 2：After standing 4-5 hours, the suspension for swimming in lacquer surface is removed, with microfiltration membranes to useless paint after removing Filtration treatment is carried out, filter 23 is repeated, obtains filtered fluid；
Step 3：3-5 grams of antiseptic is added in filtered fluid, solution temperature is arranged to 40-60 DEG C, while uses mixer It is stirred, mixing speed 100-200r/min, mixing time 10-20min；
Step 4：Then filtered fluid is placed on irradiation 2-3 hours under uviol lamp；
Step 5：Filtered fluid is dried with baking oven, oven temperature is arranged to 80-100 DEG C, and drying time is that 1-2 is small When；
Step 6：After terminating drying, room temperature is naturally cooled to, polyurethane aqueous dispersions is added and deionized water is carried out The mass ratio of secondary dissolving, polyurethane aqueous dispersions and deionized water and the paint vehicle after drying is 3: 10: 2, is adding poly- ammonia While ester water-borne dispersions and deionized water, it is stirred with mixer, mixing speed 200-300r/min, mixing time For 30-60 minutes；
Step 7：Anti-wear agent, dispersant, levelling agent, film forming agent, thickener are added, is stirred with mixer, stirring speed Spend for 600-800r/min, mixing time is 2-3 hours, dosage be respectively paint vehicle quality after drying 1.6%, 0.5%, 0.4%th, 0.3%, 0.2%；
Step 8：Antiseptic, defoamer and optical brightener are added, is stirred with mixer, mixing speed 300- 400r/min, mixing time are 1-2 hours, and dosage is respectively 0.3%, 0.2% and 0.5% of paint vehicle quality after drying；
Step 9：It is eventually adding buffer regulation pH value and is recycled paint；
The anti-wear agent is four (trimethylsiloxy group) silane, dihydroxy Phosphoric acid monohexadecyl ester sodium, N- methyl-N- (trimethyls Silylation) trifluoroacetamide, the mixture of hexadecyl trimethoxy silane, each component mass ratio be 1: 1: 2: 2.
The antiseptic is polyquaternium -7.
The dispersant is lauryl sodium sulfate.
The levelling agent is RB503.
The film forming agent is polyurethane finishing agent.
The thickener is hydroxyethyl cellulose.
The defoamer is dimethyl silicone polymer.
The optical brightener is dimethyl siloxane.
The buffer is 0.01mol/L sodium hydroxide solution.
Comparative example 1：A kind of useless paint processing method of furniture paint spraying, it is characterised in that：Comprise the steps to form：
Step 1：Useless paint is collected with waste liquid barrel, then the useless paint of collection is poured into large beaker, added in large beaker The deionized water of amount, it is completely dissolved useless paint；
Step 2：After standing 4-5 hours, the suspension for swimming in lacquer surface is removed, with microfiltration membranes to useless paint after removing Filtration treatment is carried out, filter 23 is repeated, obtains filtered fluid；
Step 3：3-5 grams of antiseptic is added in filtered fluid, solution temperature is arranged to 40-60 DEG C, while uses mixer It is stirred, mixing speed 100-200r/min, mixing time 10-20min；
Step 4：Then filtered fluid is placed on irradiation 2-3 hours under uviol lamp；
Step 5：Filtered fluid is dried with baking oven, oven temperature is arranged to 80-100 DEG C, and drying time is that 1-2 is small When；
Step 6：After terminating drying, room temperature is naturally cooled to, polyurethane aqueous dispersions is added and deionized water is carried out Secondary dissolving, polyurethane aqueous dispersions with drying after paint vehicle mass ratio be 3: 2, add polyurethane aqueous dispersions and While deionized water, it is stirred with mixer, mixing speed 200-300r/min, mixing time is 30-60 minutes；
Step 7：Anti-wear agent, dispersant, levelling agent, film forming agent, thickener are added, is stirred with mixer, stirring speed Spend for 600-800r/min, mixing time is 2-3 hours, dosage be respectively paint vehicle quality after drying 1.6%, 0.5%, 0.4%th, 0.3%, 0.2%；
Step 8：Antiseptic, defoamer and optical brightener are added, is stirred with mixer, mixing speed 300- 400r/min, mixing time are 1-2 hours, and dosage is respectively 0.3%, 0.2% and 0.5% of paint vehicle quality after drying；
Step 9：It is eventually adding buffer regulation pH value and is recycled paint；
The anti-wear agent is N- methyl-N- (trimethylsilyl) trifluoroacetamide, hexadecyl trimethoxy silane Mixture, each component mass ratio are 1: 1.
The antiseptic is polyquaternium -7.
The dispersant is lauryl sodium sulfate.
The levelling agent is RB503.
The film forming agent is polyurethane finishing agent.
The thickener is hydroxyethyl cellulose.
The defoamer is dimethyl silicone polymer.
The optical brightener is dimethyl siloxane.
The buffer is 0.01mol/L sodium hydroxide solution.
Comparative example 2：A kind of useless paint processing method of furniture paint spraying, it is characterised in that：Comprise the steps to form：
Step 1：Useless paint is collected with waste liquid barrel, then the useless paint of collection is poured into large beaker, added in large beaker The deionized water of amount, it is completely dissolved useless paint；
Step 2：After standing 4-5 hours, the suspension for swimming in lacquer surface is removed, with microfiltration membranes to useless paint after removing Filtration treatment is carried out, filter 23 is repeated, obtains filtered fluid；
Step 3：3-5 grams of antiseptic is added in filtered fluid, solution temperature is arranged to 40-60 DEG C, while uses mixer It is stirred, mixing speed 100-200r/min, mixing time 10-20min；
Step 4：Then filtered fluid is placed on irradiation 2-3 hours under uviol lamp；
Step 5：Filtered fluid is dried with baking oven, oven temperature is arranged to 80-100 DEG C, and drying time is that 1-2 is small When；
Step 6：After terminating drying, room temperature is naturally cooled to, polyurethane aqueous dispersions is added and deionized water is carried out Secondary dissolving, polyurethane aqueous dispersions with drying after paint vehicle mass ratio be 3: 2, add polyurethane aqueous dispersions and While deionized water, it is stirred with mixer, mixing speed 200-300r/min, mixing time is 30-60 minutes；
Step 7：Anti-wear agent, dispersant, levelling agent, film forming agent, thickener are added, is stirred with mixer, stirring speed Spend for 600-800r/min, mixing time is 2-3 hours, dosage be respectively paint vehicle quality after drying 1.6%, 0.5%, 0.4%th, 0.3%, 0.2%；
Step 8：Antiseptic, defoamer and optical brightener are added, is stirred with mixer, mixing speed 300- 400r/min, mixing time are 1-2 hours, and dosage is respectively 0.3%, 0.2% and 0.5% of paint vehicle quality after drying；
Step 9：It is eventually adding buffer regulation pH value and is recycled paint；
The anti-wear agent is four (trimethylsiloxy group) silane, dihydroxy Phosphoric acid monohexadecyl ester sodium, hexadecyl trimethoxy The mixture of silane, each component mass ratio are 1: 1: 2.
The antiseptic is polyquaternium -7.
The dispersant is lauryl sodium sulfate.
The levelling agent is RB503.
The film forming agent is polyurethane finishing agent.
The thickener is hydroxyethyl cellulose.
The defoamer is dimethyl silicone polymer；
The optical brightener is dimethyl siloxane.
The buffer is 0.01mol/L sodium hydroxide solution.
Comparative example 3：A kind of useless paint processing method of furniture paint spraying, it is characterised in that：Comprise the steps to form：
Step 1：Useless paint is collected with waste liquid barrel, then the useless paint of collection is poured into large beaker, added in large beaker The deionized water of amount, it is completely dissolved useless paint；
Step 2：After standing 4-5 hours, the suspension for swimming in lacquer surface is removed, with microfiltration membranes to useless paint after removing Filtration treatment is carried out, filter 23 is repeated, obtains filtered fluid；
Step 3：3-5 grams of antiseptic is added in filtered fluid, solution temperature is arranged to 40-60 DEG C, while uses mixer It is stirred, mixing speed 100-200r/min, mixing time 10-20min；
Step 4：Then filtered fluid is placed on irradiation 2-3 hours under uviol lamp；
Step 5：Filtered fluid is dried with baking oven, oven temperature is arranged to 80-100 DEG C, and drying time is that 1-2 is small When；
Step 6：After terminating drying, room temperature is naturally cooled to, polyurethane aqueous dispersions is added and deionized water is carried out Secondary dissolving, polyurethane aqueous dispersions with drying after paint vehicle mass ratio be 3: 2, add polyurethane aqueous dispersions and While deionized water, it is stirred with mixer, mixing speed 200-300r/min, mixing time is 30-60 minutes；
Step 7：Anti-wear agent, dispersant, levelling agent, film forming agent, thickener are added, is stirred with mixer, stirring speed Spend for 600-800r/min, mixing time is 2-3 hours, dosage be respectively paint vehicle quality after drying 1.6%, 0.5%, 0.4%th, 0.3%, 0.2%；
Step 8：Antiseptic, defoamer and optical brightener are added, is stirred with mixer, mixing speed 300- 400r/min, mixing time are 1-2 hours, and dosage is respectively 0.3%, 0.2% and 0.5% of paint vehicle quality after drying；
Step 9：It is eventually adding buffer regulation pH value and is recycled paint；
The anti-wear agent is four (trimethylsiloxy group) silane, dihydroxy Phosphoric acid monohexadecyl ester sodium, N- methyl-N- (trimethyls Silylation) trifluoroacetamide, each component mass ratio is 1: 1: 2.
The antiseptic is polyquaternium -7.
The dispersant is lauryl sodium sulfate.
The levelling agent is RB503.
The film forming agent is polyurethane finishing agent.
The thickener is hydroxyethyl cellulose.
The defoamer is dimethyl silicone polymer.
The optical brightener is dimethyl siloxane.
The buffer is 0.01mol/L sodium hydroxide solution.
Comparative example 4：A kind of useless paint processing method of furniture paint spraying, it is characterised in that：Comprise the steps to form：
Step 1：Useless paint is collected with waste liquid barrel, then the useless paint of collection is poured into large beaker, added in large beaker The deionized water of amount, it is completely dissolved useless paint；
Step 2：After standing 4-5 hours, the suspension for swimming in lacquer surface is removed, with microfiltration membranes to useless paint after removing Filtration treatment is carried out, filter 23 is repeated, obtains filtered fluid；
Step 3：3-5 grams of antiseptic is added in filtered fluid, solution temperature is arranged to 40-60 DEG C, while uses mixer It is stirred, mixing speed 100-200r/min, mixing time 10-20min；
Step 4：Then filtered fluid is placed on irradiation 2-3 hours under uviol lamp；
Step 5：Filtered fluid is dried with baking oven, oven temperature is arranged to 80-100 DEG C, and drying time is that 1-2 is small When；
Step 6：After terminating drying, room temperature is naturally cooled to, polyurethane aqueous dispersions is added and deionized water is carried out Secondary dissolving, polyurethane aqueous dispersions with drying after paint vehicle mass ratio be 3: 2, add polyurethane aqueous dispersions and While deionized water, it is stirred with mixer, mixing speed 200-300r/min, mixing time is 30-60 minutes；
Step 7：Anti-wear agent, dispersant, levelling agent, film forming agent, thickener are added, is stirred with mixer, stirring speed Spend for 600-800r/min, mixing time is 2-3 hours, dosage be respectively paint vehicle quality after drying 1.6%, 0.5%, 0.4%th, 0.3%, 0.2%；
Step 8：Antiseptic, defoamer and optical brightener are added, is stirred with mixer, mixing speed 300- 400r/min, mixing time are 1-2 hours, and dosage is respectively 0.3%, 0.2% and 0.5% of paint vehicle quality after drying；
Step 9：It is eventually adding buffer regulation pH value and is recycled paint；
The anti-wear agent is four (trimethylsiloxy group) silane, dihydroxy Phosphoric acid monohexadecyl ester sodium, and each component mass ratio is 1: 1。
The antiseptic is zeolite silver.
The dispersant is double (2- chloroethyls) ether, cetyl trimethyl ammonium hexafluorophosphate, vinyl bis-stearamides With the mixture of PhosphorodichloridicAcid Acid Phenyl Ester, its mass ratio is 1: 2: 2: 1.
The levelling agent is isopropyl trimethylsilyl ethers and double [2- (trimethylsiloxy group) ethyl] ethers and N- (β-ammonia second Base)-γ-aminopropyltriethoxy dimethoxysilane mixture, its mass ratio be 2: 1: 1.
The film forming agent is polyurethane finishing agent.
The thickener is hydroxyethyl cellulose.
The defoamer is dimethyl silicone polymer.
The optical brightener is dimethyl siloxane.
The buffer is 0.01mol/L sodium hydroxide solution.
Embodiment and comparative example are tested, detected according to HG/T3828-2006 standards；
Sample is placed in the acetum that pH is 5 after soaking 1h and detected according to HG/T3828-2006 standards；Will Sample is placed in the sodium bicarbonate solution that pH is 8.3 and detected after immersion 1h according to HG/T3828-2006 standards.
Sample is added in the phosphate buffer solution with bacterium solution, 1h is vibrated, its sample is fully contacted with bacterium solution, Addition agar medium is cultivated after obtaining mixed solution, and incubation is consistent with antimicrobial powder.(note thin used in this experiment Bacterium is：Gram-negative bacteria and Escherichia coli)；
Gram-negative bacteria sterilization rate Escherichia coli sterilization rate
Embodiment 1 89% 90%
Embodiment 2 83% 83%
Comparative example 1 75% 78%
To Billy 2 73% 72%
Comparative example 3 79% 76%
Comparative example 4 80% 80%
In the recovery method of the present invention, waste liquid barrel collects the remaining paint vehicle in work progress first, in work progress, Many particulate matters can enter in paint vehicle, so be first completely dissolved paint vehicle with deionized water, after being completely dissolved, many particulate matters Because density is smaller, with the time lacquer surface can be slowly swum in, now remove these floating objects, it is also many other in solution Particle object, paint vehicle is filtered with micro-filtration net, filter 23, the aperture of micro-filtration net reduces successively, thus can be small Grain material removes；But because the time that useless paint is placed is longer, particularly water paint is useless paints, it is easy to nourishes out various micro- lifes Thing, this filtering can not be removed, therefore a certain amount of antiseptic is added in paint vehicle, eliminate most of microorganism, then With ultra violet lamp, microorganism is further killed, the microorganism in paint vehicle is removed substantially, then paint vehicle is carried out with baking oven again Drying, using comparatively gentle drying mode, some materials in paint vehicle are prevented to be heated volatilization, drying can be by paint vehicle Solvent be evaporated；After drying terminates, paint vehicle is cooled to room temperature, and paint vehicle is carried out into secondary dissolving, adds polyurethane aqueous dispersions With the deionized water of excess, paint vehicle is completely dissolved, and stirred with mixer, then adds various auxiliary agents at twice so that Paint vehicle recovers original characteristic again, and also has good antibacterial action.
The anti-wear agent that the present invention uses is four (trimethylsiloxy group) silane, dihydroxy Phosphoric acid monohexadecyl ester sodium, N- methyl-N- (trimethylsilyl) trifluoroacetamide, the mixture of hexadecyl trimethoxy silane, wherein it is organic silicon to have 3 kinds of materials Material, generally, organic silicon material can improve to the wearability of coating, the phase of these three organosilicon materials Mutually coordinate, it is possible to greatly improve the anti-wear performance of coating, while under acid or alkalescence condition, anti-wear performance is basic Keep constant, ensure that coating, also can normal use under acid or alkalescence condition；Dihydroxy Phosphoric acid monohexadecyl ester sodium can be to this Three kinds of organic silicon materials play a good mediation effect, meanwhile, its own raising to Wear Resistance of Coating has necessarily Help, can also play a solubilized effect, promote the dissolubility of other materials；N- methyl-N- (trimethylsilyl) Trifluoroacetamide also has certain antibacterial action, ensure that the water paint is not easy cooperating microorganisms, it is ensured that coating can be normal Work；In the selection of antiseptic, from the pretty good zeolite silver of antibacterial effect on the market because zeolite silver be difficult and other Material phased soln, and all well and good silver molecular sieve of antibacterial effect is selected, the antiseptic not only has good antibacterial effect, together When can also be mixed well with other materials, it is mutually coordinated, mutually promote, serve a good antibacterial effect；Dispersant What is selected is double (2- chloroethyls) ether, cetyl trimethyl ammonium hexafluorophosphate, vinyl bis-stearamides and dichloride phosphoric acid The mixture of phenyl ester composition, the mutually coordinated cooperation of these three materials have been greatly facilitated material particles and have been dispersed in medium, shape Into stable suspension, the relatively stable of dispersion ensure that, it is ensured that each material can play its characteristic, enable coating just Often use, while cetyl trimethyl ammonium hexafluorophosphate also strengthens the anti-microbial property of whole coating；Levelling agent select be Isopropyl trimethylsilyl ethers and double [2- (trimethylsiloxy group) ethyl] ethers and N- (β-aminoethyl)-γ-aminopropyltriethoxy diformazan The mixture of TMOS, these three materials mutually act synergistically, and can play good levelling effect, while also can further add The anti-wear performance and resistance to acids and bases of strong coating；What film forming agent was selected is ester gum and trimethyl hydroxyl amylalcohol isobutyrate and alcohol The mixture of ester 12, these three materials can play good filming function after cooperating；What defoamer was selected is dimethyl On the one hand the mixture of silicone oil and tetramethyl divinyl disiloxane, both materials can play good defoaming effect, together When raising also to Wear Resistance of Coating have certain help；The optical brightener selection is 3- glycydoxies three The mixture of Ethoxysilane and dimethyl silicone polymer, after both material mixings, good light enhancing effect can be played, makes paint Material recovers original color and luster, has good brightness, it helps improve the anti-wear performance of coating；What final buffer agent was selected Sodium dihydrogen phosphate and the concentration for being 0.2mol/L are the mixed solution of 0.2mol/L dibastic sodium phosphate, rather than simply select strong acid Or strong base solution, because strong acid or highly basic may react with some materials in coating, so as to the performance to coating Affect, this buffer avoids this unexpected generation, some materials in coating will not be reacted, again It can guarantee that the stability of overall water paint.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (10)

  1. A kind of 1. useless paint processing method of furniture paint spraying, it is characterised in that：Comprise the steps to form：
    Step 1：Useless paint is collected with waste liquid barrel, then the useless paint of collection is poured into large beaker, excess is added in large beaker Deionized water, it is completely dissolved useless paint；
    Step 2：After standing 4-5 hours, the suspension for swimming in lacquer surface is removed, useless paint is carried out with microfiltration membranes after removing Filtration treatment, filter 23 is repeated, obtains filtered fluid；
    Step 3：3-5 grams of antiseptic is added in filtered fluid, solution temperature is arranged to 40-60 DEG C, while is carried out with mixer Stirring, mixing speed 100-200r/min, mixing time 10-20min；
    Step 4：Then filtered fluid is placed on irradiation 2-3 hours under uviol lamp；
    Step 5：Filtered fluid is dried with baking oven, oven temperature is arranged to 80-100 DEG C, and drying time is 1-2 hours；
    Step 6：After terminating drying, room temperature is naturally cooled to, polyurethane aqueous dispersions is added and deionized water progress is secondary Dissolving, polyurethane aqueous dispersions with drying after paint vehicle mass ratio be 3: 2, add polyurethane aqueous dispersions and go from While sub- water, it is stirred with mixer, mixing speed 200-300r/min, mixing time is 30-60 minutes；
    Step 7：Anti-wear agent, dispersant, levelling agent, film forming agent, thickener are added, is stirred with mixer, mixing speed is 600-800r/min, mixing time are 2-3 hours, dosage be respectively paint vehicle quality after drying 1.6%, 0.5%, 0.4%, 0.3%th, 0.2%；
    Step 8：Antiseptic, defoamer and optical brightener are added, is stirred with mixer, mixing speed 300-400r/ Min, mixing time are 1-2 hours, and dosage is respectively 0.3%, 0.2% and 0.5% of paint vehicle quality after drying；
    Step 9：It is eventually adding buffer regulation pH value and is recycled paint；
    The anti-wear agent is four (trimethylsiloxy group) silane, dihydroxy Phosphoric acid monohexadecyl ester sodium, N- methyl-N- (trimethyl silanes Base) trifluoroacetamide, the mixture of hexadecyl trimethoxy silane, each component mass ratio be 1: 1: 2: 2.
  2. A kind of 2. useless paint processing method of furniture paint spraying according to claim 1, it is characterised in that：The antiseptic For silver molecular sieve, the molecular sieve forms including following weight parts：
    Ludox：5 parts
    3- isocyanide propyl-triethoxysilicanes：0.5 part
    Lagoriolite：0.3 part
    Alchlor：4 parts
    Sodium oxide molybdena：2-5 parts
    4- cyano-phenyl isothiocyanates 0.5-1 parts
    Water：100 parts；
    The preparation method of the molecular sieve：The ratio of being first according to weighs up raw material, then first by 3- isocyanides propyl-triethoxysilicane, Lagoriolite, alchlor are dissolved in Ludox, and sodium oxide molybdena is dissolved in into water, are then all added in autoclave, are added 4- cyano-phenyl isothiocyanates, after mixing, heat 2-4 hours, heating-up temperature is 150-200 DEG C, after heating, is cooled to room Temperature, product is separated, washed, dry after obtain carrier original powder, afterwards again by carrier original powder carry out calcination, obtain molecular sieve.
  3. A kind of 3. useless paint processing method of furniture paint spraying according to claim 2, it is characterised in that：The antiseptic Preparation method be：Silver nitrate is dissolved in deionized water first, the silver nitrate aqueous solution that mass fraction is 15% is formed, then presses According to the ratio that the mass ratio of solution and molecular sieve is 9: 1, certain molecular sieve is added into silver nitrate aqueous solution, is with rotating speed 200-300r/min mixer mixes 30-60 minutes, carries out centrifugal treating, is finally putting at 80-100 DEG C of baking oven heat 4-6 hours are managed, silver molecular sieve is made.
  4. A kind of 4. useless paint processing method of furniture paint spraying according to claim 3, it is characterised in that：The dispersant For double (2- chloroethyls) ethers, cetyl trimethyl ammonium hexafluorophosphate, vinyl bis-stearamides and PhosphorodichloridicAcid Acid Phenyl Ester Mixture, its mass ratio are 1: 2: 2: 1.
  5. A kind of 5. useless paint processing method of furniture paint spraying according to claim 4, it is characterised in that：The levelling agent For isopropyl trimethylsilyl ethers and double [2- (trimethylsiloxy group) ethyl] ethers and N- (β-aminoethyl)-γ-aminopropyltriethoxy two The mixture of methoxy silane, its mass ratio are 2: 1: 1.
  6. A kind of 6. useless paint processing method of furniture paint spraying according to claim 5, it is characterised in that：The film forming agent For ester gum and the mixture of trimethyl hydroxyl amylalcohol isobutyrate and alcohol ester 12, its mass ratio is 1: 2: 0.5.
  7. A kind of 7. useless paint processing method of furniture paint spraying according to claim 6, it is characterised in that：The thickener For hydroxyethyl cellulose.
  8. A kind of 8. useless paint processing method of furniture paint spraying according to claim 7, it is characterised in that：The defoamer For dimethicone and the mixture of tetramethyl divinyl disiloxane, its mass ratio is 2: 1.
  9. A kind of 9. useless paint processing method of furniture paint spraying according to claim 8, it is characterised in that：The optical brightener For 3- glycydoxies triethoxysilane and the mixture of dimethyl silicone polymer, its mass ratio is 1: 1.
  10. A kind of 10. useless paint processing method of furniture paint spraying according to claim 9, it is characterised in that：The buffering Agent forms including following parts by volume：
    Concentration is 0.2mol/L 5.3 parts of sodium dihydrogen phosphate；
    Concentration is 0.2mol/L 94.7 parts of dibastic sodium phosphate.
CN201710862625.2A 2017-09-21 2017-09-21 A kind of useless paint processing method of furniture paint spraying Pending CN107760180A (en)

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Application publication date: 20180306