CN102390886A - Preparation of organic/inorganic combined coating deadhesion agent and application of organic/inorganic combined coating deadhesion agent to spray painting wastewater - Google Patents
Preparation of organic/inorganic combined coating deadhesion agent and application of organic/inorganic combined coating deadhesion agent to spray painting wastewater Download PDFInfo
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- CN102390886A CN102390886A CN2011101890789A CN201110189078A CN102390886A CN 102390886 A CN102390886 A CN 102390886A CN 2011101890789 A CN2011101890789 A CN 2011101890789A CN 201110189078 A CN201110189078 A CN 201110189078A CN 102390886 A CN102390886 A CN 102390886A
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Abstract
The invention relates to an organic/inorganic combined coating deadhesion agent, which has a favorable deadhesion effect on water-soluble and fat-soluble coatings and is particularly suitable for treatment of spray painting wastewater produced in the traditional coating process. The deadhesion agent is formed by a nitrogenous linear organic high polymer and an inorganic high polymer according to the weight proportion of 1: 0.02-1: 50 and has strong electric neutrality; and according to the invention, coating particle charges can be rapidly neutralized, the viscidity of more than 95 percent of coating is lost in 1-5min, and the treatment efficiency of coating wastewater is greatly improved.
Description
Technical field
The present invention relates to a kind of organic/inorganic composite dope stick that disappears.This stick that disappears all has the sticking effect that well disappears to water-soluble, fat-soluble coating, is specially adapted to the painting wastewater processing that existing coating process is produced.
Technical background
The various oil paints of in the shell coating process of the industry of present coating process such as painting dressing automobiles, mechano-electronic product, using; Usually have and can not be coated to greatly on the application workpiece and form " crossing spray " coating; " cross spray " and measure usually up to 25%-60%; These coating contain in a large number the disadvantageous volatile organic solvent of HUMAN HEALTH, need cleaning in time.Be difficult to cleaning because coating falls to the ground, this " crossing spray " coating is got in the recirculated water.Organic solvent is taken out of outdoor because the water cycle of indoor water tank and outdoor tank flows, reduce the Health cost to the operating personnel.And " crossing spray " coating itself sticks to greatly on tank, pipeline and the water pump wall owing to viscosity; After long-time accumulation; Can form bigger lacquer group blocking pipe, thereby can influence the normal operation of purification system, also can influence coating quality simultaneously; Reduce recirculating water purification efficient, increase the replacing number of times of recirculated water.
" cross and spray " line clogging that brings and the problem that is difficult to clear up in order to overcome coating, in recirculated water, add the stick that disappears that to remove " crossing spray " coating viscosity usually, to prevent on " crossing spray " clagging pipeline or on the wall.In addition, the coating that disappears after gluing also needs a kind of flocculation agent, makes the coating particle aggegation become the porous scum silica frost to float on the water surface, makes coating and water sepn, so that Salvage and Wreck Removal.This process not only coating booth has kept cleaning, has protected Working environment and operator's health; And water obtained recycle, practiced thrift resource.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, provide a kind of and can effectively eliminate " crossing spray " stick fast thereby the organic/inorganic composite dope that viscosity water-soluble, fat-soluble coating makes coating be easy to clear up disappears.
Another object of the present invention provides the disappear preparation method of stick of this organic/inorganic composite dope.
A further object of the invention just provides this organic/inorganic composite dope stick that disappears and removes the application in the circulating water treatment of coating cloud system in wet type.
Organic/inorganic composite dope of the present invention disappear stick be nitrogenous linear organic high molecular polymer and inorganic polymer with 1: 0.02-1: 50 part by weight combines.
Described nitrogenous linear organic high molecular polymer is to contain-organic cpds of NH-group and the product of aldehydes reaction.
Described inorganic polymer is a kind of, two or more combination in polymerization muriate, polyaluminum sulfate thing or the polymerization silicate of zinc, iron, aluminium, magnesium.
The disappear preparation method of stick of organic/inorganic composite dope of the present invention comprises following process step:
1. will contain-organic cpds and the aldehydes of NH-group is 1 with mol ratio: 1-7 is added to the water, stir to make its thorough mixing, temperature be 30-95 ℃ down reaction after 10-60 minute the pH value of reaction system is adjusted to 1-6.In the pH value be continue under the condition of 1-6 30-95 ℃ down reaction promptly get nitrogenous linear organic high molecular polymer after 1-15 hour.
2. with nitrogenous linear organic high molecular polymer and inorganic polymer with 1: 0.02-1: 50 part by weight solves homogeneously in the water, and the solid content that makes solution is at 3%-25%, promptly gets the organic/inorganic composite dope stick that disappears.
Said organic/inorganic composite dope disappears in the preparation of stick, contain-organic cpds of NH-group is a Dyhard RU 100, and is at least a in amino acid, urea, the trimeric cyanamide; Said aldehydes be formaldehyde, acetaldehyde, propionic aldehyde, oxalic dialdehyde, at least a in the phenyl aldehyde, phenylacetic aldehyde.
Said organic/inorganic composite dope disappears in the preparation of stick, and the pH value of reaction system control method is with at least a adding reaction system in volatile salt, bicarbonate of ammonia, ammonium chloride, hydrochloric acid, phosphoric acid, sulfuric acid, the nitric acid.
Said organic/inorganic composite dope disappears in the preparation of stick, and the polymerization muriate is in the inorganic polymer: Poly aluminum Chloride (PAC), aluminium iron polychloride; Described polyaluminum sulfate thing is: bodied ferric sulfate, PAFS, polyaluminium sulfate; Described polymerization silicate is: polymer aluminium silicate, polymeric silicicacid iron, polymeric aluminium ferrum silicate, polymer aluminium silicate zinc, polymeric silicicacid magnalium.
The organic/inorganic composite dope of the present invention stick that disappears is applied in the processing of wet type paint removal systemic circulation water, earlier waste water ph is adjusted to 8-10, in containing paint waste water, adds the organic/inorganic composite dope stick that disappears then; Make its with contain the paint waste water thorough mixing disappear sticking after, in waste water, adding the flocculation agent that contains tensio-active agent, thorough mixing; Leave standstill; The paint particles come-up of luming fast, the disappearing sticking lacquer slag in the partitioning cycle water contains paint waste water and is purified the back recycle.
The described organic/inorganic composite dope stick that disappears is applied in the processing of wet type paint removal systemic circulation water, and flocculation agent is that molecular weight is that the positively charged ion of 900-2500 ten thousand gathers at least a in propionic acid amide, 900-2500 ten thousand non-ionic polyacrylamides, 900-2500 ten thousand amphiprotic polyacrylamides and the Poly Dimethyl Diallyl Ammonium Chloride.
The described organic/inorganic composite dope stick that disappears is applied in the processing of wet type paint removal systemic circulation water; Tensio-active agent is palmityl trimethyl ammonium chloride, DTAC, dodecyl benzyl dimethyl ammonium chloride, coconut oil diethanol amide, polysorbate, glycerin fatty acid ester, and is at least a in TX10, the fatty acid polyglycol oxyethane ester.
The organic/inorganic composite dope of the present invention stick use properties that disappears can be verified with following experiment:
Get the Plastic Bottle of a water white 1.5L, add the 1L tap water, regulate the pH value to 8-10; Adding the organic/inorganic composite dope stick that disappears shakes up; Drip with suction pipe or needle tubing surplus varnish or the finish paint 10 of any brand car droplet, build bottle cap, firmly fluctuated for tens seconds.Add flocculation agent, build bottle cap, firmly fluctuated for tens seconds again, left standstill 5 minutes.Observing effect, paint viscosity is how empty bulk and floats on the water surface by broken ring; Do not have tangible bur on the bottle wall, water quality is limpid.
The present invention compared with prior art has the following advantages:
Organic/inorganic composite dope of the present invention disappears in the stick; Nitrogenous linear organic high molecular polymer has the positively charged ion of certain density on its molecular chain under acidic conditions, can bring into play the charge neutrality effect well; Destroy the colloid that coating particle forms, make it take off steady cohesion; Inorganic polymer can produce active deposition under the weak base condition, make the coating surface unsticking, and water-soluble, fat-soluble coating is had sticking, the cohesion that disappears fast and effectively, makes the coating more than 95% lose viscosity.
The present invention prepares the organic/inorganic composite dope and disappears that the raw materials cost of stick is low, technology is simple, makes that the productive rate of finished product is high, cost is low, and it is easy to operate to handle spraying waste water, and program is simple.
Disappear stick and flocculation agent of organic/inorganic composite dope of the present invention is used and can effectively improves the painting operation environment; Improve the recirculating water purification running efficiency of system; Thereby better improve cycle water and reduce recirculated water replacing number of times, the lacquer slag of generation is easy to subsequent disposal.
Embodiment
Instance 1
Dyhard RU 100, formaldehyde are added to the water with 1: 1 amount of mol ratio, stir and make its thorough mixing, after reacting 20 minutes under 55 ℃, it is 2-3 that the hydrochloric acid of adding 37% is regulated pH, continues under 55 ℃, to react 10 hours, promptly gets nitrogenous linear organic high molecular polymer.
Above-mentioned Dyhard RU 100-yuban and PAFS are mixed with weight ratio at 1: 0.1, and thin up to solid content is 10%, promptly gets the organic/inorganic composite dope stick that disappears.
Get the Plastic Bottle of a water white 1.5L, add the 1L tap water, regulate the pH value to 8-10 with sodium hydroxide; Adding the above-mentioned organic/inorganic composite dope stick that disappears shakes up; An alkyd finish surplus dripping 10 with suction pipe or needle tubing is built bottle cap, firmly fluctuates for tens seconds.Add 1,500 ten thousand cationic polyacrylamide flocculation agent, build bottle cap, firmly fluctuated for tens seconds again, left standstill 5 minutes.Observing effect, paint viscosity is how empty bulk and floats on the water surface by broken ring; Do not have tangible bur on the bottle wall, water quality is limpid.
Instance 2
Trimeric cyanamide, acetaldehyde are added to the water with 1: 3 amount of mol ratio, stir and make its thorough mixing, after reacting 10 minutes under 85 ℃, it is 1-2 that the sulfuric acid of adding 98% is regulated pH, continues under 85 ℃, to react 2 hours, promptly gets nitrogenous linear organic high molecular polymer.
Above-mentioned trimeric cyanamide-acetaldehyde polymer and polymeric silicicacid iron are mixed with weight ratio at 2: 1, and thin up to solid content is 15%, promptly gets the organic/inorganic composite dope stick that disappears.
Get the Plastic Bottle of a water white 1.5L, add the 1L tap water, regulate the pH value to 8-10 with Pottasium Hydroxide; Adding the above-mentioned organic/inorganic composite dope stick that disappears shakes up; An alkyd finish surplus dripping 10 with suction pipe or needle tubing is built bottle cap, firmly fluctuates for tens seconds.Add 1,200 ten thousand zwitter-ion SEPIGEL 305 flocculation agent, build bottle cap, firmly fluctuated for tens seconds again, left standstill 5 minutes.Observing effect: paint viscosity is how empty bulk and floats on the water surface by broken ring; Do not have tangible bur on the bottle wall, water quality is limpid.
Instance 3
Urea, phenyl aldehyde are added to the water with 1: 1.5 amount of mol ratio, stir and make its thorough mixing, after reacting 30 minutes under 60 ℃, adding nitric acid adjusting pH is 4-5, continues under 70 ℃, to react 6 hours, promptly gets nitrogenous linear organic high molecular polymer.
Above-mentioned Dyhard RU 100-phenyl aldehyde polymkeric substance and polymeric aluminium ferrum silicate are mixed with weight ratio at 5: 1, and thin up to solid content is 9%, promptly gets the organic/inorganic composite dope stick that disappears.
Get the Plastic Bottle of a water white 1.5L, add the 1L tap water, regulate the pH value to 8-10 with water glass; Adding the above-mentioned organic/inorganic composite dope stick that disappears shakes up; An alkyd varnish lacquer is built bottle cap surplus dripping 10 with suction pipe or needle tubing, firmly fluctuates for tens seconds.Add 2,000 ten thousand non-ionic polyacrylamide flocculation agent, build bottle cap, firmly fluctuated for tens seconds again, left standstill 5 minutes.Observing effect: paint viscosity is how empty bulk and floats on the water surface by broken ring; Do not have tangible bur on the bottle wall, water quality is limpid.
Instance 4
Dyhard RU 100, trimeric cyanamide, formaldehyde are added to the water with 1: 1: 4 amount of mol ratio; Stirring makes its thorough mixing, and reaction is after 15 minutes down at 75 ℃, and adding ammonium chloride adjusting pH is 5-6; Continuation was reacted 3 hours down at 85 ℃, promptly got nitrogenous linear organic high molecular polymer.
Above-mentioned Dyhard RU 100-carbamide polymkeric substance and aluminium iron polychloride are mixed with weight ratio at 1: 2, and thin up to solid content is 6%, promptly gets the organic/inorganic composite dope stick that disappears.
Get the Plastic Bottle of a water white 1.5L, add the 1L tap water, regulate the pH value to 8-10 with potassium silicate; Adding the above-mentioned organic/inorganic composite dope stick that disappears shakes up; An alkyd varnish surplus dripping 10 with suction pipe or needle tubing is built bottle cap, firmly fluctuates for tens seconds.Add the Poly Dimethyl Diallyl Ammonium Chloride flocculation agent, build bottle cap, firmly fluctuated for tens seconds again, left standstill 5 minutes.Observing effect: paint viscosity is how empty bulk and floats on the water surface by broken ring; Do not have tangible bur on the bottle wall, water quality is limpid.
Instance 5
Trimeric cyanamide, Padil, oxalic dialdehyde are added to the water with 1: 1: 3 amount of mol ratio; Stirring makes its thorough mixing, and reaction is after 5 minutes down at 95 ℃, and it is 2-3 that the hydrochloric acid of adding 37% is regulated pH; Continuation was reacted 1 hour down at 95 ℃, promptly got nitrogenous linear organic high molecular polymer.
Above-mentioned trimeric cyanamide-Padil-oxalic dialdehyde polymkeric substance and polymer aluminium silicate zinc are mixed with weight ratio at 1: 10, and thin up to solid content is 25%, promptly gets the organic/inorganic composite dope stick that disappears.
Get the Plastic Bottle of a water white 1.5L, add the 1L tap water, regulate the pH value to 8-10 with yellow soda ash; Adding the above-mentioned organic/inorganic composite dope stick that disappears shakes up; An alkyd varnish surplus dripping 10 with suction pipe or needle tubing is built bottle cap, firmly fluctuates for tens seconds.Add 1,500 ten thousand amphiprotic polyacrylamide flocculation agent, build bottle cap, firmly fluctuated for tens seconds again, left standstill 5 minutes.Observing effect: paint viscosity is how empty bulk and floats on the water surface by broken ring; Do not have tangible bur on the bottle wall, water quality is limpid.
Claims (14)
1. organic/inorganic composite dope stick that disappears; It is characterized in that: the said stick that disappears be nitrogenous linear organic high molecular polymer and inorganic polymer with 1: 0.02-1: 50 part by weight solves homogeneously in the water, and the solid content of solution is at 3%-25%.
2. the organic/inorganic composite dope as claimed in claim 1 stick that disappears is characterized in that: described nitrogenous linear organic high molecular polymer is to contain-organic cpds of NH-group and the product of aldehydes reaction.
3. the organic/inorganic composite dope according to claim 1 stick that disappears is characterized in that: described inorganic polymer is a kind of, two or more combination in polymerization muriate, polyaluminum sulfate thing or the polymerization silicate of zinc, iron, aluminium, magnesium.
4. inorganic polymer according to claim 3 is characterized in that: described polymerization muriate is: Poly aluminum Chloride (PAC), aluminium iron polychloride; Described polyaluminum sulfate thing is: bodied ferric sulfate, PAFS, polyaluminium sulfate; Described polymerization silicate is: polymer aluminium silicate, polymeric silicicacid iron, polymeric aluminium ferrum silicate, polymer aluminium silicate zinc, polymeric silicicacid magnalium.
5. nitrogenous linear organic high molecular polymer according to claim 2; It is characterized in that: contain-temperature of reaction of the organic cpds of NH-group and aldehydes reaction is 30-95 ℃; Reaction times is 1-15 hour, contain-organic cpds and the aldehydes mol ratio of NH--group is 1: 1-7.
6. nitrogenous linear organic high molecular polymer according to claim 4 is characterized in that: the organic cpds of described containing-NH-group and aldehydes reaction are adjusted to 1-6 with the pH value of reaction system in reaction beginning back after 10-60 minute.
7. nitrogenous linear organic high molecular polymer according to claim 5 is characterized in that: the pH value control method of reaction system be with in volatile salt, bicarbonate of ammonia, ammonium chloride, hydrochloric acid, phosphoric acid, sulfuric acid, the nitric acid a kind of, two or more adds in reaction system.
8. according to the said nitrogenous linear organic high molecular polymer of claim 5, it is characterized in that: after the pH regulator of reaction system is 1-6, be to continue under the condition of 1-6 in the pH value 30-95 ℃ of reaction 1-15 hour down.
9. nitrogenous linear organic high molecular polymer according to claim 2 is characterized in that: the organic cpds of described containing-NH-group is a Dyhard RU 100, in amino acid, urea, the trimeric cyanamide a kind of, two or more; Said aldehydes be formaldehyde, acetaldehyde, propionic aldehyde, oxalic dialdehyde, a kind of, two or more combination in the phenyl aldehyde, phenylacetic aldehyde.
10. the organic/inorganic composite dope as claimed in claim 1 stick that disappears is applied in the processing of wet type paint removal systemic circulation water; It is characterized in that: earlier waste water ph is adjusted to 8-10, in containing paint waste water, adds the organic/inorganic composite dope stick that disappears then, make its with contain the paint waste water thorough mixing disappear sticking after; In waste water, add the flocculation agent that contains tensio-active agent again; Thorough mixing leaves standstill, the paint particles come-up of luming fast; The sticking lacquer slag that disappears in the partitioning cycle water contains paint waste water and is purified the back recycle.
Stick is used 11. organic/inorganic composite dope according to claim 9 disappears, and it is characterized in that: method for adjusting pH value of waste water is that a kind of, two or more the combination with yellow soda ash, sodium hydrogencarbonate, sodium hydroxide, water glass, salt of wormwood, saleratus, Pottasium Hydroxide, potassium silicate is added in the waste water.
Stick is used 12. organic/inorganic composite dope according to claim 9 disappears, and it is characterized in that: the disappear feeding quantity of stick of said organic/inorganic composite dope is the 3%-20% of paint weight; The said add-on that contains the flocculation agent of tensio-active agent is the 3%-20% of paint weight.
Stick is used 13. organic/inorganic composite dope according to claim 9 disappears, and it is characterized in that: described flocculation agent is that molecular weight is that the positively charged ion of 900-2500 ten thousand gathers a kind of, two or more combination in propionic acid amide, 900-2500 ten thousand non-ionic polyacrylamides, 900-2500 ten thousand amphiprotic polyacrylamides and the Poly Dimethyl Diallyl Ammonium Chloride.
Stick is used 14. organic/inorganic composite dope according to claim 9 disappears; It is characterized in that: described tensio-active agent is palmityl trimethyl ammonium chloride, DTAC, dodecyl benzyl dimethyl ammonium chloride, coconut oil diethanol amide, polysorbate, glycerin fatty acid ester, a kind of, two or more combination in TX10, the fatty acid polyglycol oxyethane ester.
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| CN2011101890789A CN102390886A (en) | 2011-07-07 | 2011-07-07 | Preparation of organic/inorganic combined coating deadhesion agent and application of organic/inorganic combined coating deadhesion agent to spray painting wastewater |
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| CN2011101890789A CN102390886A (en) | 2011-07-07 | 2011-07-07 | Preparation of organic/inorganic combined coating deadhesion agent and application of organic/inorganic combined coating deadhesion agent to spray painting wastewater |
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| CN102774943A (en) * | 2012-04-16 | 2012-11-14 | 上海立昌环境工程有限公司 | Paint flocculant and applications thereof |
| CN102838196A (en) * | 2012-09-20 | 2012-12-26 | 天津碧海蓝天水性高分子材料有限公司 | Inorganic nanometer paint fog coagulant and preparation method thereof |
| CN103848489A (en) * | 2014-03-21 | 2014-06-11 | 武汉理工大学 | Novel efficient paint mist flocculant and preparation method thereof |
| CN103910423A (en) * | 2014-04-23 | 2014-07-09 | 武汉理工大学 | Polysilicic acid modified melamine coagulant for paint fog and preparation method thereof |
| CN104649397A (en) * | 2015-01-30 | 2015-05-27 | 广东省宜华木业股份有限公司 | Agglutinant of paint spray mist and preparation method and application thereof |
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| CN104876315A (en) * | 2015-05-29 | 2015-09-02 | 鞍山中科美清节能环保技术有限公司 | Water treatment flocculant |
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| CN102774943A (en) * | 2012-04-16 | 2012-11-14 | 上海立昌环境工程有限公司 | Paint flocculant and applications thereof |
| CN102838196A (en) * | 2012-09-20 | 2012-12-26 | 天津碧海蓝天水性高分子材料有限公司 | Inorganic nanometer paint fog coagulant and preparation method thereof |
| CN103848489B (en) * | 2014-03-21 | 2015-07-22 | 武汉理工大学 | Novel efficient paint mist flocculant and preparation method thereof |
| CN103848489A (en) * | 2014-03-21 | 2014-06-11 | 武汉理工大学 | Novel efficient paint mist flocculant and preparation method thereof |
| CN103910423A (en) * | 2014-04-23 | 2014-07-09 | 武汉理工大学 | Polysilicic acid modified melamine coagulant for paint fog and preparation method thereof |
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Application publication date: 20120328 |