CN108424713A - Workpiece interfacial agent, preparation method and workpiece surface spray soak method - Google Patents

Workpiece interfacial agent, preparation method and workpiece surface spray soak method Download PDF

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Publication number
CN108424713A
CN108424713A CN201810092672.8A CN201810092672A CN108424713A CN 108424713 A CN108424713 A CN 108424713A CN 201810092672 A CN201810092672 A CN 201810092672A CN 108424713 A CN108424713 A CN 108424713A
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agent
workpiece
interfacial
degreasing
surfactant
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CN108424713B (en
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王运玖
谢悦红
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Foshan Rich Technology Co Ltd
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Foshan Rich Technology Co Ltd
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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
    • C09D171/00—Coating compositions based on polyethers obtained by reactions forming an ether link in the main chain; Coating compositions based on derivatives of such polymers
    • C09D171/02—Polyalkylene oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/002—Pretreatement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
    • B05D3/101—Pretreatment of polymeric substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
    • B05D3/102—Pretreatment of metallic substrates
    • 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
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
    • 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
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/24—Electrically-conducting paints
    • 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
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/04—Antistatic

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  • Wood Science & Technology (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
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  • Application Of Or Painting With Fluid Materials (AREA)
  • Paints Or Removers (AREA)

Abstract

The present invention relates to a kind of workpiece interfacial agent, preparation method and workpiece surface spray soak methods.Interfacial agent includes that deionized water, Interfacial complexation agent, compound low foaming surfactant, antistatic agent, moisture film spreading agent and the mass ratio of adhesion promoter and each ingredient are 60~80:0~10:5~15:1~15:1~10:0.5~5.Antistatic agent is one or more combinations in ethoxylated amines, the quaternary ammonium salt of ionic, tertiary ammonium salt, carboxylate, and moisture film spreading agent is alcohol ethers and one or more combinations in ethylene oxide condensate, fluorine-containing surfactant, hc-surfactant.The present invention interfacial agent spray when can room temperature use, the water mark and current mark of workpiece surface can be eliminated, enhance the adhesive force of workpiece and coating.Prepare the method for interfacial agent and, suitable mass production easy to operate using the workpiece surface spray soak method of the interfacial agent.

Description

Workpiece interfacial agent, preparation method and workpiece surface spray soak method
Technical field
The present invention relates to workpiece interfacial agent, preparation method and workpiece surface spray soak methods.
Background technology
The surface of the workpiece such as plastic part or metal is in the decorative appearance effect that after application, can not only improve workpiece Fruit can also extend the purposes of workpiece such as color, finish, texture.By taking plastic part as an example, led in the external coating of plastic part Electric layer can make it have the electric conductivity of metal, and widely application is obtained in fields such as communication, electronics.But due to plastics Part inevitably attached in injection molding, storage and transmission process the impurity such as oil stain, sweat stain, dust, releasing agent and because Rub the electrostatic generated so that plastic part adhesion property when carrying out external coating substantially reduces, and paint film is easy to fall off, and applies thickness Spend uneven, workpiece repair rate height, waste coating material.
It is most of in the existing spray soak method to workpiece surface not use interfacial agent to improve work The hydrophily on part surface, therefore subsequently need to carry out grinding process or acidification so that workpiece surface roughening, Jin Erti Binding force between high coating and workpiece surface, enhancing coating effect.But it is cumbersome to carry out technics comparing when grinding process, and produces Efficiency is low.And carry out being also easy to produce harmful substance when acidification, it is all very big to the actual bodily harm of environment and production scene worker.
Some in the spray soak method of existing workpiece surface use interfacial agent to workpiece surface into The processing of row interface activation improves the hydrophily of workpiece surface, and then enhances the binding force between coating and workpiece surface.But it is existing Interfacial agent be generally it is acid (such as the methylbenzene ammonium sulfate of Zhong companies, polyethylene glycol nonyl phenolic ether ammonium sulfate, poly- Ethylene glycol nonyl phenolic ether sodium sulfate salt, polyethylene glycol octyl phenol ether ammonium salt, the condensation polycyclic nonyl phenolic ether methyl acryl acid sulphur of polyethylene glycol Poly- polyethylene glycol stearic acid ether, ethylene glycol nonyl phenolic ether, the polyethylene glycol of the anionic interfacial agents such as acid esters or Zhong companies The non-ionic interfacial agents such as octyl phenol ether, polyethylene glycol decyl ethers, three decyl ethers of polyethylene glycol, polidocanol are It is acid), the surface roughening of workpiece can be made, enhance the binding force between coating and workpiece surface, but by interface activation It also needs to carry out the techniques such as pure water cleaning again after processing.Some also need to carry out under heating conditions.Technics comparing is numerous It is trivial, while increasing energy consumption, of high cost, low production efficiency.In addition, by existing interfacial agent interface activation treated work Part (plastic part for being especially doped with reclaimed materials) is also easy to a problem that workpiece cracking, scrap occur.
Invention content
(1) technical problems to be solved
In order to solve the above problem of the prior art, an object of the present invention be to provide it is a kind of in spray can room temperature make With, and the electrostatic distribution of workpiece surface can be changed, so that moisture film is uniformly sprawled, the water mark and current mark of workpiece surface can be eliminated, Enhance the workpiece interfacial agent of the adhesive force of workpiece and coating.
The second object of the present invention is to provide a kind of preparation method of above-mentioned interfacial agent.
The third object of the present invention is to provide a kind of workpiece surface spray soak side using above-mentioned interfacial agent Method.
(2) technical solution
In order to achieve the above object, the main technical schemes that the present invention uses include：
A kind of workpiece interfacial agent of one aspect of the present invention, including deionized water, Interfacial complexation agent, compound low bubble surface Activating agent, antistatic agent, moisture film spreading agent and adhesion promoter；Wherein, the deionized water in interfacial agent, Interfacial complexation Agent, compound low foaming surfactant, antistatic agent, moisture film spreading agent and adhesion promoter mass ratio be 60~80:0~ 10:5~15:1~15:1~10:0.5~5；Antistatic agent be ethoxylated amines, the quaternary ammonium salt of ionic, ionic uncle Amine salt, ionic carboxylate in one or more combinations；Moisture film spreading agent is alcohol ethers and ethylene oxide condensate, contains One or more combinations in fluorinated surfactant, hc-surfactant.
According to the present invention, Interfacial complexation agent is one or more combinations in polycarboxylate, modified alkyl naphthalene sulfonate； Compound low foaming surfactant is alcohol ethers and ethylene oxide condensate.
According to the present invention, adhesion promoter is one or more in methoxy silane, Ethoxysilane, amino silane Combination.
Another aspect of the present invention provides a kind of method preparing above-mentioned workpiece interfacial agent, includes the following steps：S1、 Interfacial complexation agent and compound low foaming surfactant are add to deionized water, be uniformly mixed and dissolved；S2, will be antistatic Agent, moisture film spreading agent and adhesion promoter are added in the solution that step S1 is obtained, and are uniformly mixed and are dissolved；S3, by step Solution that S2 is obtained is cooling, after filtering, and obtained filtrate is interfacial agent.
Further aspect of the present invention provides a kind of workpiece surface spray soak method, includes the following steps：S1, piece uploading： Pending workpiece is placed on a conveyor, each spray equipment is passed sequentially through on transfer matic；S2, degreasing process：Use degreasing The surface of agent to workpiece to be handled carries out pre- degreasing and degreasing twice technique respectively；S3, tap water washing process：At normal temperatures, Hydro-peening is carried out to the surface of the obtained workpiece of step S2 with tap water；S4, pure water washing process：At normal temperatures, with pure water to step The surface for the workpiece that rapid S3 is obtained carries out pure water hydro-peening；S5, interface activation technique：At normal temperatures, with above-mentioned interfacial agent Interface activation processing is carried out to the surface of the obtained workpiece of step S4, changes the electrostatic distribution of workpiece surface, eliminates workpiece surface Water mark and current mark；S6, dewatering process：The moisture on the surface for the workpiece that removal step S5 is obtained；S7, stoving process：To step It is dried on the surface for the workpiece that S6 is obtained；S8, cooling technique：The surface of the obtained workpiece of step S7 is cooled down.
According to the present invention, in step s 4, after pure water hydro-peening, ensure the μ s/cm of the conductivity of pure water≤50；In step S5 In, the μ s/cm of the conductivity of interfacial agent≤30, the time of interface activation processing is 0.5~1.5min；
According to the present invention, in step s 2, the total time of pre- degreasing and ungrease treatment is 3~8min；In the step s 7, it dries Dry temperature is 60~80 DEG C.
According to the present invention, in step s 2, degreasing agent includes the following components'mass percentage：3%~5% component A, The deionized water or tap water of 3%~5% component B and surplus；Component A includes that deionized water, inorganic base, complexing agent and compounding are low Steep solubilizing surfactant；Wherein, the deionized water in component A, inorganic base, complexing agent and the low bubble solubilizing surfactant of compounding Mass ratio be 65~70:15~25:1~2:8~14；Component B includes deionized water, Complexing/Dispersing Agent, corrosion inhibiter, low bubble Solubilizer, sealing end/modification isomery ether surfactants and modified polyether；Wherein, the deionized water in component B, complexing dispersion Agent, corrosion inhibiter, the low mass ratio for steeping solubilizer, sealing end/modification isomery ether surfactants and modified polyether are 50~70:1 ~2:0~5:5~10:8~15:8~25.
According to the present invention, in component A, inorganic base is one or more groups in bicarbonate, carbonate, silicate It closes；Complexing agent is one or more combinations in citrate, ethylenediamine tetra-acetic acid, gluconate；Compound low bubble solubilising Surfactant is one or more combinations in alkyl glycosides, modified isomery alcohol ethers.
According to the present invention, in component B, Complexing/Dispersing Agent be polycarboxylate, one kind in modified alkyl naphthalene sulfonate or A variety of combinations；Corrosion inhibiter is one or more in the alcoxylates of 1-hydroxy ethylidene-1,1-diphosphonic acid, acrylic resin, propilolic alcohol Combination；Low bubble solubilizer is benzene sulfonic acid sodium salt class；Sealing end/modification isomery ether surfactants are that isomery alcohol contracts with ethylene oxide Close object；Modified polyether is the oligomer of terminal hydroxy group.
(3) advantageous effect
The beneficial effects of the invention are as follows：
The interfacial agent of the present invention is by deionized water, Interfacial complexation agent, compound low foaming surfactant, antistatic The interfacial agent liquid that agent, moisture film spreading agent and adhesion promoter are mixed with.Wherein, compound low foaming surfactant can Increase the activity of interfacial agent liquid, and stability is strong.Adhesion promoter can enhance the binding force of workpiece surface and coating. Especially since these are anti-quiet for the carboxylate of the tertiary ammonium salt of the quaternary ammonium salt of ethoxylated amines, ionic, ionic, ionic The special dispersing morphology of electric agent, embodies superpower antistatic effect, can form conductive channel, make charge be evenly distributed or It is soon removed from workpiece surface, plays excellent antistatic property.And alcohol ethers are lived with ethylene oxide condensate, fluorochemical surface Property agent, hc-surfactant these moisture film spreading agents can show excellent surface-active, interface work is greatly reduced The surface tension of property agent liquid, makes the wetting power of interfacial agent liquid and penetration all greatly improve, is easier on the surface of the workpiece Wetting and spreading comes, and considerably increases the hydrophilic compatibilities of interfacial agent, and then reduces or completely eliminates the water of workpiece surface Stain or current mark.Therefore, the interfacial agent interface activation by the present invention treated workpiece is less prone to cracking, scraps etc. no Good situation, activation process effect are very notable.
In this way, the present invention interfacial agent spray when can room temperature use, without heating environment carry out, without The techniques such as pure water cleaning are further added by, workpiece pre-treating technology is simplified, reduces energy consumption, improve production efficiency, reduce life Produce cost.
The method for preparing interfacial agent of the present invention is easy to operate, is suitble to produce in enormous quantities.
The workpiece surface spray soak method of the present invention is easy to operate, and interface activation treatment process is at normal temperatures just It carries out, it is energy saving, and the electrostatic distribution of workpiece surface can be changed after being handled by interface activation, so that moisture film is uniformly sprawled, The water mark and current mark of workpiece surface can be eliminated, the adhesive force of workpiece and coating is enhanced.
Specific implementation mode
In order to preferably explain the present invention, in order to understand, by specific implementation mode, the present invention is described in detail.
Embodiment 1
The present embodiment provides a kind of workpiece interfacial agents, including deionized water, Interfacial complexation agent, compound low bubble surface Activating agent, antistatic agent, moisture film spreading agent and adhesion promoter, and each ingredient is liquid.That is, interfacial activity Agent is promoted by deionized water, Interfacial complexation agent, compound low foaming surfactant, antistatic agent, moisture film spreading agent and adhesive force The interfacial agent liquid that agent is mixed with.
Specifically, the deionized water in interfacial agent, Interfacial complexation agent, compound low foaming surfactant, antistatic agent, The mass ratio of moisture film spreading agent and adhesion promoter is 60:4:8:2:5:4.5.
Wherein, Interfacial complexation agent selects sodium polycarboxylate, and the Ca in interfacial agent liquid can be complexed2+、 Mg2+Equal impurity gold Belong to ion, solia particle and oligomer gel to interfacial agent liquid or workpiece surface have splendid dispersion effect, can make solid Body particle and oligomer gel are not adhere to workpiece surface as far as possible.Compound low foaming surfactant selection propylene-glycol ethyl ether and ring Oxidative ethane condensation product, propylene-glycol ethyl ether and ethylene oxide condensate are nonionic surface active agent, can be dispersed in water, and are had There is good emulsifiability, the activity of interfacial agent can be increased, degreasing result is good, and stability is strong.It requires emphasis It is that the compound low foaming surfactant selected in the present embodiment is to generate the few surfactant of foam at normal temperatures, into And it can prevent from causing each ingredient to mix uneven and foam excessively in high-speed stirred when circle because foam is excessive in spray Face activating agent hydrorrhea goes out reaction vessel, causes to reveal.
Antistatic agent selects the quaternary ammonium salt of ionic, the quaternary ammonium salt of ionic to belong to cationic antistatic agent.Ionic Quaternary ammonium salt be dissolved in water after, the hydrophilic group in molecule is inserted into water, and lipophilic group just stretches to air, and interfacial agent is sprayed In workpiece surface, the lipophilic group in quaternary ammonium molecules of salt will be adsorbed in workpiece surface for leaching, after subsequent stoving process, To deviate from the workpiece surface after moisture, the hydrophilic group in quaternary ammonium molecules of salt is all arranged towards air side, easily absorbs ambient moisture, Or be combined with the moisture in air by hydrogen bond, formed a unimolecule conductive layer, make generation electrostatic charge rapidly leakage and Reach anlistatig purpose.Therefore, antistatic effect has been embodied by the special dispersing morphology of the quaternary ammonium salt of ionic, from The quaternary ammonium salt of subtype can form conductive channel, make being evenly distributed or soon being removed from workpiece surface for charge, and then play Anlistatig effect.
Moisture film spreading agent selects fluorine-containing surfactant, fluorine-containing surfactant to have excellent heat resistance and chemical stabilization Property, high surface activity, and dosage is few, saves raw material；And fluorine-containing surfactant has both hydrophobicity and oleophobic property, therefore can present Go out good surface-active；The surface tension of interfacial agent liquid can be greatly lowered in fluorine-containing surfactant simultaneously, in turn The wetting power and penetration for making interfacial agent liquid all greatly improve, and more easily wetting and spreading comes on the surface of the workpiece, can Increase the hydrophilic compatibilities of interfacial agent, and then reduces or eliminates the water stain or current mark of workpiece surface.Adhesion promoter selects Trimethoxy silane is selected, trimethoxy silane is the important intermediate of complex functionality organo-silicon compound, can be used as adhesive, The binding force of workpiece surface and coating can be enhanced.
Further, it selects deionized water without selecting tap water in the ingredient of interfacial agent, is primarily due to interface Raw material majority in activating agent liquid is organic matter, and interfacial agent liquid is neutrality, and bacteriostasis is poor.According to tap water, Bacterium is often easily carried in tap water, interfacial agent liquid is being stored in the process easily by bacteria effect, and then corruption, hair easily occurs Situations such as smelly.And deionized water is used, bacterium or impurity are seldom carried due to general in deionized water, uses deionized water Stability is more preferable when the interfacial agent liquid storage of preparation.
Further, the ingredient of the interfacial agent is without phosphorus, and be it is degradable, therefore, the interfacial agent more ring It protects, it is smaller to the actual bodily harm of environment and production scene worker.The interfacial agent is in spray simultaneously, at normal temperatures It uses, without heating, and then can be energy saving.In addition, by the interfacial agent carry out interface activation processing after, no longer need into The techniques such as row pure water cleaning, it is simple for process, production efficiency can be improved.
Further, after carrying out interface activation processing to the surface of workpiece using this interfacial agent, workpiece can be changed The electrostatic on surface is distributed, and so that moisture film is uniformly sprawled, is eliminated the water mark and current mark of workpiece surface, so can enhance workpiece surface with The adhesive force of coating ensure that the performance of workpiece surface, reduce that workpiece is cracking, a problem that scrapping.
The present embodiment additionally provides the preparation method of above-mentioned workpiece interfacial agent, specifically comprises the following steps：
S1,600 parts of deionized water is added in reaction vessel, electrodynamic type homogenizer is loaded onto, in stirring It is lower to be slowly added into 40 parts of sodium polycarboxylate and 80 parts of propylene-glycol ethyl ether in reaction vessel with ethylene oxide condensate, in height Under speed shearing dispersion condition, stirring 30min to dissolving, wherein the rotating speed of blender is 1100r/min.
S2, the quaternary ammonium salt of 20 parts of ionic, 50 parts of fluorine-containing surfactant and 45 parts of trimethoxy silane are added Enter in the solution obtained to step S1, stirring 35min to dissolving, wherein the rotating speed of blender is 1100r/min.
S3, mixing plant is removed, the solution that step S2 is obtained is cooling, after filtering, and obtained filtrate is interfacial agent. When preparing interfacial agent mainly due to generating heat in high-speed stirred, it is therefore desirable to cooling.Wherein, the filter filtered out Slag is the solid that the mixing of each ingredient is not completely dissolved yet later.
Wherein, when preparing interfacial agent, since each ingredient of interfacial agent is liquid, to it is each at The addition sequence divided has no strict demand.It should be noted that when preparing interfacial agent, each ingredient in interfacial agent Between will not chemically react, be only mixing physically.
Embodiment 2
The present embodiment provides a kind of workpiece interfacial agents, including deionized water, Interfacial complexation agent, compound low bubble surface Activating agent, antistatic agent, moisture film spreading agent and adhesion promoter, and each ingredient is liquid.
Specifically, the deionized water in interfacial agent, Interfacial complexation agent, compound low foaming surfactant, antistatic agent, The mass ratio of moisture film spreading agent and adhesion promoter is 70:6:10:8:6:2.
Wherein, the modified ethyl sodium naphthalene sulfonate of Interfacial complexation agent selection, modified ethyl sodium naphthalene sulfonate are lived with good surface Property, be commonly used as moisturizing, permeability factor and emulsification, polymerisation emulsifier, the Ca in interfacial agent liquid can be complexed2 +、Mg2+Etc. foreign metal ions, solia particle and oligomer gel to interfacial agent liquid or workpiece surface have splendid point Effect is dissipated, solia particle and oligomer gel can be made to be not adhere to workpiece surface as far as possible.Compound low foaming surfactant selection Propylene glycol monomethyl ether and ethylene oxide condensate, propylene glycol monomethyl ether and ethylene oxide condensate are nonionic surface active agent, energy It is enough dispersed in water, there is good emulsifiability, the activity of interfacial agent can be increased, degreasing result is good, and stablizes Property is strong.
Antistatic agent selects ethoxylated alkylamine, and ethoxylated alkylamine belongs to the antistatic agent of nonionic, is most Big a kind of antistatic agent.Ethoxylated alkylamine is effectively antistatic agent, even if at low relative humidity also So, and it is permanently effective.By interfacial agent spray in workpiece surface, ethoxylated alkylamine molecule is just in interfacial agent Most dense orientations are formed with the surface of air or interfacial agent and workpiece, wherein lipophilic group stretches to interfacial activity The inside of agent, hydrophilic group stretch to the outside of interfacial agent.After subsequent stoving process, deviate from the workpiece table after moisture On face, the hydrophilic group in ethoxylated alkylamine molecule is arranged both facing to air side, forms a unimolecule conductive layer.Cause This has embodied antistatic effect by the special dispersing morphology of ethoxylated alkylamine, and ethoxylated alkylamine being capable of shape At conductive channel, make being evenly distributed or soon being removed from workpiece surface for charge, and then play the role of anlistatig.
Moisture film spreading agent selects the hc-surfactant of cationic, and the hc-surfactant of cationic is with good Good surface-active, while there is hydrophilic lipophilic group, the surface tension of interfacial agent liquid can be reduced, and then enhance interface Wetting, emulsification, the solubilization of activating agent liquid, and then so that interfacial agent liquid is easier wetting and spreading on the surface of the workpiece and open Come, reduces or eliminates the water stain or current mark of workpiece surface.In addition, the hc-surfactant of cationic also has excellent kill Bacterium property can enhance stability of the interfacial agent liquid in storage.Adhesion promoter selects amino silane, by amino silane Spray can interact after workpiece surface on the surface of amino silane and workpiece, form silane and mutually oozed with workpiece surface Saturating reticular structure enhances cohesive force and water resistant stability, and then can enhance the combination of workpiece surface and coating Power.
The present embodiment additionally provides the preparation method of above-mentioned workpiece interfacial agent, specifically comprises the following steps：
S1,700 parts of deionized water is added in reaction vessel, electrodynamic type homogenizer is loaded onto, in stirring Lower be slowly added into 60 parts of modification ethyl sodium naphthalene sulfonate and 100 parts of propylene glycol monomethyl ether with ethylene oxide condensate reacts appearance In device, under high speed shear dispersion condition, stirring 40min to dissolving, wherein the rotating speed of blender is 1200r/min.
S2, by 80 parts of ethoxylated alkylamine, the hc-surfactant of 60 parts of cationic and 20 parts of amino Silane is added in the solution that step S1 is obtained, stirring 35min to dissolving, wherein the rotating speed of blender is 1200r/min.
S3, mixing plant is removed, the solution that step S2 is obtained is cooling, after filtering, and obtained filtrate is interfacial agent. When preparing interfacial agent mainly due to generating heat in high-speed stirred, it is therefore desirable to cooling.
Embodiment 3
The present embodiment provides a kind of workpiece interfacial agents, including deionized water, Interfacial complexation agent, compound low bubble surface Activating agent, antistatic agent, moisture film spreading agent and adhesion promoter, and each ingredient is liquid.
Specifically, the deionized water in interfacial agent, Interfacial complexation agent, compound low foaming surfactant, antistatic agent, The mass ratio of moisture film spreading agent and adhesion promoter is 65:5:6:6:8:4.
Wherein, Interfacial complexation agent selects polycarboxylic acids potassium, and the Ca in interfacial agent liquid can be complexed2+、 Mg2+Equal impurity gold Belong to ion, solia particle and oligomer gel to interfacial agent liquid or workpiece surface have splendid dispersion effect, can make solid Body particle and oligomer gel are not adhere to workpiece surface as far as possible.Compound low foaming surfactant selection ethylene glycol monomethyl ether and ring Oxidative ethane condensation product, ethylene glycol monomethyl ether and ethylene oxide condensate are nonionic surface active agent, can be dispersed in water, and are had There is good emulsifiability, the activity of interfacial agent can be increased, degreasing result is good, and stability is strong.
Antistatic agent selects the tertiary ammonium salt of ionic, is often used as antistatic agent, passes through the special of the tertiary ammonium salt of ionic Dispersing morphology embodied antistatic effect, the tertiary ammonium salt of ionic can form conductive channel, make being evenly distributed for charge Or soon removed from workpiece surface, and then play the role of anlistatig.
Moisture film spreading agent selects fluorine-containing surfactant, high surface activity that interfacial agent liquid can be greatly lowered Surface tension, increases the hydrophilic compatibilities of interfacial agent, and then reduces or eliminates the water stain or current mark of workpiece surface.Adhesive force The choice of accelerator triethoxysilane can enhance the binding force of workpiece surface and coating.
The present embodiment additionally provides the preparation method of above-mentioned workpiece interfacial agent, specifically comprises the following steps：
S1,650 parts of deionized water is added in reaction vessel, electrodynamic type homogenizer is loaded onto, in stirring It is lower to be slowly added into 50 parts of polycarboxylic acids potassium and 60 parts of ethylene glycol monomethyl ether in reaction vessel with ethylene oxide condensate, in height Under speed shearing dispersion condition, stirring 35min to dissolving, wherein the rotating speed of blender is 1150r/min.
S2, the tertiary ammonium salt of 60 parts of ionic, 80 parts of fluorine-containing surfactant and 40 parts of triethoxysilane are added Enter in the solution obtained to step S1, stirring 35min to dissolving, wherein the rotating speed of blender is 1150r/min.
S3, mixing plant is removed, the solution that step S2 is obtained is cooling, after filtering, and obtained filtrate is interfacial agent. When preparing interfacial agent mainly due to generating heat in high-speed stirred, it is therefore desirable to cooling.
Embodiment 4
The present embodiment provides a kind of workpiece interfacial agents, including deionized water, Interfacial complexation agent, compound low bubble surface Activating agent, antistatic agent, moisture film spreading agent and adhesion promoter, and each ingredient is liquid.
Specifically, the deionized water in interfacial agent, Interfacial complexation agent, compound low foaming surfactant, antistatic agent, The mass ratio of moisture film spreading agent and adhesion promoter is 80:10:12:5:8:5.
Wherein, Interfacial complexation agent selects sodium polycarboxylate, and the Ca in interfacial agent liquid can be complexed2+、 Mg2+Equal impurity gold Belong to ion, solia particle and oligomer gel to interfacial agent liquid or workpiece surface have splendid dispersion effect, can make solid Body particle and oligomer gel are not adhere to workpiece surface as far as possible.Compound low foaming surfactant selection propandiol butyl ether and ring Oxidative ethane condensation product, propandiol butyl ether and ethylene oxide condensate are nonionic surface active agent, can be dispersed in water, and are had There is good emulsifiability, the activity of interfacial agent can be increased, degreasing result is good, and stability is strong.
Antistatic agent selects the quaternary ammonium salt of ionic, belongs to cationic antistatic agent, passes through the quaternary ammonium salt of ionic Special dispersing morphology has embodied antistatic effect, and the quaternary ammonium salt of ionic can form conductive channel, make the distribution of charge It soon removes uniformly or from workpiece surface, and then plays the role of anlistatig.
Moisture film spreading agent selects fluorine-containing surfactant, high surface activity that interfacial agent liquid can be greatly lowered Surface tension, increases the hydrophilic compatibilities of interfacial agent, and then reduces or eliminates the water stain or current mark of workpiece surface.Adhesive force The choice of accelerator amino silane can enhance the binding force of workpiece surface and coating.
The present embodiment additionally provides the preparation method of above-mentioned workpiece interfacial agent, specifically comprises the following steps：
S1,800 parts of deionized water is added in reaction vessel, electrodynamic type homogenizer is loaded onto, in stirring It is lower to be slowly added into 100 parts of sodium polycarboxylate and 120 parts of propandiol butyl ether in reaction vessel with ethylene oxide condensate, Under high speed shear dispersion condition, stirring 40min to dissolving, wherein the rotating speed of blender is 1200r/min.
S2, the quaternary ammonium salt of 50 parts of ionic, 80 parts of fluorine-containing surfactant and 50 parts of amino silane are added to In the solution that step S1 is obtained, stirring 40min to dissolving, wherein the rotating speed of blender is 1200r/min.
S3, mixing plant is removed, the solution that step S2 is obtained is cooling, after filtering, and obtained filtrate is interfacial agent. When preparing interfacial agent mainly due to generating heat in high-speed stirred, it is therefore desirable to cooling.
Embodiment 5
The present embodiment provides a kind of workpiece interfacial agents, including deionized water, Interfacial complexation agent, compound low bubble surface Activating agent, antistatic agent, moisture film spreading agent and adhesion promoter, and each ingredient is liquid.
Specifically, the deionized water in interfacial agent, Interfacial complexation agent, compound low foaming surfactant, antistatic agent, The mass ratio of moisture film spreading agent and adhesion promoter is 75:8:5:15:10:4.
Wherein, the modified nekal of Interfacial complexation agent selection, has good surface-active, is commonly used as protecting Wet, permeability factor and the emulsifier of emulsification, polymerisation, can be complexed the Ca in interfacial agent liquid2+、Mg2+Equal impurity gold Belong to ion, solia particle and oligomer gel to interfacial agent liquid or workpiece surface have splendid dispersion effect, can make solid Body particle and oligomer gel are not adhere to workpiece surface as far as possible.Compound low foaming surfactant selection propylene-glycol ethyl ether and ring Oxidative ethane condensation product, propylene-glycol ethyl ether and ethylene oxide condensate are nonionic surface active agent, can be dispersed in water, and are had There is good emulsifiability, the activity of interfacial agent can be increased, degreasing result is good, and stability is strong.
Antistatic agent selects the carboxylic acid sodium of ionic, is embodied by the special dispersing morphology of the carboxylic acid sodium of ionic The carboxylic acid sodium of antistatic effect, ionic can form conductive channel, make being evenly distributed or soon from workpiece surface for charge It removes, and then plays the role of anlistatig.
Moisture film spreading agent selects the hc-surfactant of cationic, high surface activity that interface can be greatly lowered The surface tension of activating agent liquid, increases the hydrophilic compatibilities of interfacial agent, so reduce or eliminate the water stain of workpiece surface or Current mark.Adhesion promoter selects trimethoxy silane, can enhance the binding force of workpiece surface and coating.
The present embodiment additionally provides the preparation method of above-mentioned workpiece interfacial agent, specifically comprises the following steps：
S1,750 parts of deionized water is added in reaction vessel, electrodynamic type homogenizer is loaded onto, in stirring It is lower that 80 parts of modification nekal and 50 parts of propylene-glycol ethyl ether are slowly added into ethylene oxide condensate and are reacted In container, under high speed shear dispersion condition, stirring 35min to dissolving, wherein the rotating speed of blender is 1100r/min.
S2, by the carboxylic acid sodium of 150 parts of ionic, the hc-surfactant of 100 parts of cationic and the three of 40 parts Methoxy silane is added in the solution that step S1 is obtained, stirring 40min to dissolving, wherein the rotating speed of blender is 1100r/ min。
S3, mixing plant is removed, the solution that step S2 is obtained is cooling, after filtering, and obtained filtrate is interfacial agent. When preparing interfacial agent mainly due to generating heat in high-speed stirred, it is therefore desirable to cooling.
Certainly, the ingredient of interfacial agent of the invention is not limited to the above embodiment, the deionization in interfacial agent Water, Interfacial complexation agent, compound low foaming surfactant, antistatic agent, the mass ratio of moisture film spreading agent and adhesion promoter are excellent It is selected as 60~80:0~10:5~15:1~15:1~10:Any value in 0.5~5.Interfacial complexation agent is preferably polycarboxylic acids One or more combinations in salt, modified alkyl naphthalene sulfonate, compound low foaming surfactant are preferably alcohol ethers and epoxy Oxide condensate, antistatic agent are preferably ethoxylated amines, the quaternary ammonium salt of ionic, the tertiary ammonium salt of ionic, ionic One or more combinations in carboxylate, moisture film spreading agent are preferably that alcohol ethers are lived with ethylene oxide condensate, fluorochemical surface One or more combinations in property agent, hc-surfactant, adhesion promoter is preferably methoxy silane, ethyoxyl silicon One or more combinations in alkane, amino silane.
Meanwhile in the preparation method of interfacial agent of the invention, it being also not limited to above-described embodiment, in step S1 and S2 In, the rotating speed of blender preferably in the range of 800~1200r/min, mixing time preferably in the range of 20~60min, Specific mixing time can according to yield and charging number depending on.
To sum up, interfacial agent of the invention is by deionized water, Interfacial complexation agent, compound low foaming surfactant, resists The interfacial agent liquid that electrostatic agent, moisture film spreading agent and adhesion promoter are mixed with.Wherein, compound low foaming surfactant The activity of interfacial agent liquid can be increased, and stability is strong；Antistatic agent can change the electrostatic distribution of workpiece surface, make electricity Lotus being evenly distributed or soon being removed from workpiece surface；Moisture film spreading agent can increase the activity of interfacial agent liquid, simultaneously The surface tension of interfacial agent liquid is reduced, the hydrophilic compatibilities of interfacial agent liquid are increased, and then reduces or eliminates workpiece table The water stain or current mark in face；And adhesion promoter can enhance the binding force of workpiece surface and coating.Therefore, by the present invention's Interfacial agent interface activation treated a problem that workpiece is less prone to cracking, scraps, activation process effect is very aobvious It writes.
In this way, the present invention interfacial agent spray when can room temperature use, without heating environment carry out, without The techniques such as pure water cleaning are further added by, workpiece pre-treating technology is simplified, reduces energy consumption, improve production efficiency, reduce life Produce cost.
In addition, the method for preparing interfacial agent in the present invention is easy to operate, it is suitble to produce in enormous quantities.
Embodiment 6
The present embodiment provides a kind of workpiece surface spray soak method, in the workpiece surface spray soak method Interfacial agent used is any interfacial agent in Examples 1 to 5.Specifically comprise the following steps：
S1, piece uploading：Pending workpiece is placed into (such as insert or hang on jig) on a conveyor, on transfer matic according to It is secondary to pass through each spray equipment.
S2, degreasing process：Under 60 DEG C of skimming temp, with degreasing agent, (degreasing agent mentioned here is in existing market Degreasing agent) surface to workpiece to be handled carries out pre- degreasing and degreasing twice technique, pre- degreasing and degreasing twice technique respectively Total time be 10min.Wherein, pre- degreasing process 5min, degreasing process 5min.In addition, in pre- degreasing process and degreasing process In added with Polyether Modified Polysiloxanes Defoaming Agent, and then eliminate the foam that workpiece generates in carrying out pre- degreasing and degreasing process, Foam overflow groove body is prevented, degreasing agent liquid is taken away, harmful effect is caused to site environment.
Specifically, using degreasing twice compared with only with a degreasing：Only with a degreasing, degreasing agent liquid easily reaches Saturation state keeps workpiece surface degreasing unclean, while the easily aging of degreasing agent liquid also being made (to contain impurity mistake i.e. in degreasing agent liquid It is more), keep degreasing agent fluid exchange frequent, degreasing agent dosage is more.And after using degreasing twice, the grease of workpiece surface is in pre- degreasing Shi Jiben has been removed, and workpiece surface is only left a small amount of grease, and therefore, then while carrying out degreasing can be by the grease of workpiece surface Removal is clean, and degreasing effect is more preferable compared with only with a degreasing.
In addition, after using degreasing twice, the degree of aging of pre- degreasing agent liquid and degreasing agent liquid is different, is replacing degreasing agent It only needs often to replace pre- degreasing agent liquid when liquid, does not need to often replace degreasing agent liquid, therefore, may be used also using degreasing twice To save the dosage of degreasing agent, so it is cost-effective.Degreasing twice is used simultaneously, is not in big exception in cleaning, i.e., When, there are one when being abnormal, another can be with normal use, and then can ensure to take off in pre- degreasing agent liquid and degreasing agent liquid Fat effect.
S3, tap water washing process：At normal temperatures, twice are carried out certainly to the surface of the obtained workpiece of step S2 with tap water Water hydro-peening.
S4, pure water washing process：At normal temperatures, twice pure water spray is carried out to the surface of the obtained workpiece of step S3 with pure water It washes, makes the μ s/cm of the conductivity of pure water≤50.
Wherein, more due to containing impurity in tap water, interference is also easy to produce to the test of the ion of workpiece surface, therefore into It after tap water of going washing, also needs to carry out pure water washing again, while carrying out the test of conductivity, Jin Erke after being cleaned with pure water To ensure cleaning effect.After carrying out pure water cleaning, if the 50 μ s/cm of conductivity ＞ of pure water, illustrate that the surface of workpiece contains There is impurity (referring mainly to zwitterion) excessively, then the surface of workpiece is easily made to generate dotted equal traces, shadow after subsequently being dried Ring workpiece quality.And as the conductivity of pure water≤50 μ s/cm, then show that the impurity of workpiece surface has cleaned up.
S5, interface activation technique：At normal temperatures, step S4 is obtained with any interfacial agent in Examples 1 to 5 The surface of workpiece carries out interface activation and handles 0.5min, changes the electrostatic distribution of workpiece surface, so that moisture film is uniformly sprawled, and then disappear Except the water mark and current mark of workpiece surface, the adhesive force of workpiece and coating can be enhanced.
Wherein, the μ s/cm of the conductivity of interfacial agent≤30, to keep the clean level of interfacial agent liquid.
Surface adjustment is carried out to workpiece to can be carried out at normal temperatures, need not heat, simultaneously using this interfacial agent The processes such as pure water washing subsequently need not be also carried out again, and can reduce or eliminate the water stain or current mark of workpiece surface, additionally it is possible to Enhance the binding force of workpiece surface and coating.Therefore, easy to operate using this interfacial agent progress surface adjustment, it is efficient, It is at low cost simultaneously.
S6, dewatering process：The moisture on the surface for the workpiece that removal step S5 is obtained.Specifically, work is blown away with compressed air The residual moisture on part surface, using dewatering process, it is possible to reduce spent energy and time when follow-up drying, and then save at This.
S7, stoving process：The surface of the obtained workpiece of step S6 is dried.Body, it will with 60 DEG C of circulating airs The skin drying of workpiece, drying time 15min.
S8, cooling technique：The surface of the obtained workpiece of step S7 is cooled down.It specifically, can be natural after workpiece drying It is cooling also to force cooling treatment, the workpiece being disposed that can be applied into coating process according to technological requirement cold wind Dress.
Embodiment 7
The present embodiment provides a kind of workpiece surface spray soak method, the difference with embodiment 6 essentially consists in step Degreasing agent employed in S2 degreasing process is different, and the specific steps difference of degreasing process is carried out to workpiece.It is specific as follows：
S1, piece uploading：Pending workpiece is placed into (such as insert or hang on jig) on a conveyor, on transfer matic according to It is secondary to pass through each spray equipment.
S2, degreasing process：At normal temperatures, pre- degreasing and degreasing two are carried out respectively with the surface of degreasing agent to workpiece to be handled The total time of road technique, pre- degreasing and degreasing twice technique is 3min.Wherein, pre- degreasing process 1min, degreasing process 2min.
Wherein, degreasing agent used includes the following components'mass percentage：3% component A, 3% component B and surplus are gone Ionized water (or using tap water).That is, degreasing agent is the degreasing being mixed with by component A, component B and deionized water Agent liquid can fully thoroughly using lipid phases such as the oil stains of workpiece surfaces such as this degreasing agent cleaning showers plastic part or metal Ground removes these lipid phases, realizes the ungrease treatment of workpiece surface.
Specifically, component A includes deionized water, inorganic base, complexing agent and the low bubble solubilizing surfactant of compounding, and go from Sub- water, inorganic base, complexing agent and the low mass ratio for steeping solubilizing surfactant of compounding are 65:25:2:8.
Wherein, inorganic base selects solid potassium carbonate, mainly provides alkaline environment, plays the role of pH bufferings and help to wash. Complexing agent selects solid ethylenediamine tetra-acetic acid (EDTA), and EDTA is the representative substances of chelating agent, is dissolved in the solution of potassium carbonate In, the Ca in degreasing agent liquid obtained can be complexed2+、Mg2+Etc. foreign metal ions, form stabilization with these foreign metal ions Water soluble complex, increase the solubility of these foreign metal ions, prevent degreasing agent liquid from too fast aging occur and causing to take off Fat is not clean, the problems such as being not thorough.Compound the modification isomerous tridecanol polyoxyethylene of low bubble solubilizing surfactant selection liquid Ether, one of the main component as cleaning by degreasing, can enhance the effect of degreasing.Modified isomerous tridecanol polyoxyethylene ether easily disperses Or it is dissolved in water, there is excellent wetability, permeability and emulsibility, be one of the key component of degreasing agent liquid, greatly enhance de- The cleaning by degreasing effect of fat agent liquid.
Component B includes deionized water, Complexing/Dispersing Agent, corrosion inhibiter, low bubble solubilizer, isomery ether surfactants and changes Property polyethers, and deionized water, Complexing/Dispersing Agent, corrosion inhibiter, low bubble solubilizer, sealing end/modification isomery ether surfactants and The mass ratio of modified polyether is 60:2:1:8:9:20.
Wherein, the sodium polycarboxylate of Complexing/Dispersing Agent selection liquid, can be complexed the Ca in degreasing agent liquid2+、 Mg2+Equal impurity Metal ion, while can be to the Ca in degreasing agent liquid2+、Mg2+、Cu2+、Fe2+Equal metal ions have very strong chelating dispersion energy Power has splendid dispersion effect to solia particle and oligomer gel.Corrosion inhibiter selects the 1-hydroxy ethylidene-1,1-diphosphonic acid of liquid (HEDP), HEDP can reduce corrosion of the inorganic base in component A to equipment in acidity；While a kind of or organic phosphine acids Anti-incrustation corrosion inhibitor, can be with the Ca in degreasing agent liquid2+、Mg2+Etc. foreign metal ions form stable complex compound, play good Corrosion-mitigation scale-inhibition effect, and then fouling in Sprayer Circulation pipeline can be slowed down, avoid the blocking of Sprayer Circulation pipeline and nozzle.It is low It steeps solubilizer and selects solid sodium xylene sulfonate, sodium xylene sulfonate is a kind of efficient hypotoxicity solubilizer, can be increased The solubility of degreasing agent liquid avoids degreasing agent liquid from being layered, while can increase the transparency of degreasing agent liquid, reaches as clear as crystal effect Fruit can additionally increase the storage stability of degreasing agent liquid.
Isomery ether surfactants can be sealing end isomery ether surfactants, can also be modified isomery alcohol ether table Face activating agent primarily serves the effect for increasing stability when using sealing end isomery ether surfactants, using modified isomery alcohol When ether surface active agent, activity can be increased, increase compatibility.In the present embodiment, isomery ether surfactants select liquid Modification isomerous tridecanol and ethylene oxide condensate (referred to as modified isomerous tridecanol polyoxyethylene ether), modified isomerous tridecanol Polyoxyethylene ether is a low bubble nonionic surfactant, and dissolubility is good in water, and solubilising is strong, have excellent washing force and Permeate emulsifying capacity, with it is cloudy, non-, cationic can compatibility, substantially improve detergency and washing power, degreasing result be more preferable. The polymer that the fatty alcohol polyoxyethylene ether of modified polyether selection liquid is obtained through sudden reaction in the presence of a catalyst, it is main to rise To cleaning, the effect of defoaming.
In the present embodiment, it using such degreasing agent, can be carried out under room temperature in degreasing process, degreasing effect is excellent, And a large amount of foam is not will produce, it avoids additionally using organic silicon defoamer, to the spraying conducive to subsequent workpiece.In addition, de- Fat agent liquid is alkalies, and without phosphorus degradable, environmentally protective, smaller to the actual bodily harm of environment and production scene worker, is used Safety.
S3, tap water washing process：At normal temperatures, twice are carried out certainly to the surface of the obtained workpiece of step S2 with tap water Water hydro-peening.
S4, pure water washing process：At normal temperatures, twice pure water spray is carried out to the surface of the obtained workpiece of step S3 with pure water It washes, makes the μ s/cm of the conductivity of pure water≤50.
S5, interface activation technique：At normal temperatures, step S4 is obtained with any interfacial agent in Examples 1 to 5 The surface of workpiece carries out interface activation and handles 1.0min, changes the electrostatic distribution of workpiece surface, so that moisture film is uniformly sprawled, and then disappear Except the water mark and current mark of workpiece surface, the adhesive force of workpiece and coating can be enhanced.
Wherein, the μ s/cm of the conductivity of interfacial agent≤30, to keep the clean level of interfacial agent liquid.
S6, dewatering process：The moisture on the surface for the workpiece that removal step S5 is obtained.Specifically, work is blown away with compressed air The residual moisture on part surface.
S7, stoving process：The surface of the obtained workpiece of step S6 is dried.Body, it will with 70 DEG C of circulating airs The skin drying of workpiece, drying time 12min.
S8, cooling technique：The surface of the obtained workpiece of step S6 is cooled down.It specifically, can be natural after workpiece drying It is cooling also to force cooling treatment, the workpiece being disposed that can be applied into coating process according to technological requirement cold wind Dress.
Embodiment 8
The present embodiment provides a kind of workpiece surface spray soak method, the difference with embodiment 6 essentially consists in step Degreasing agent employed in S2 degreasing process is different, and the specific steps difference of degreasing process is carried out to workpiece.It is specific as follows：
S1, piece uploading：Pending workpiece is placed into (such as insert or hang on jig) on a conveyor, on transfer matic according to It is secondary to pass through each spray equipment.
S2, degreasing process：At normal temperatures, pre- degreasing and degreasing two are carried out respectively with the surface of degreasing agent to workpiece to be handled The total time of road technique, pre- degreasing and degreasing twice technique is 4min.Wherein, pre- degreasing process 2min, degreasing process 2min.
Wherein, degreasing agent used includes the following components'mass percentage：3% component A, 4% component B and surplus are gone Ionized water.
Specifically, component A includes deionized water, inorganic base, complexing agent and the low bubble solubilizing surfactant of compounding, and go from Sub- water, inorganic base, complexing agent and the low mass ratio for steeping solubilizing surfactant of compounding are 70:15:1:4.
Wherein, inorganic base selects solid sodium bicarbonate, mainly provides alkaline environment, plays pH bufferings and helps the work washed With.Complexing agent selects solid sodium citrate, and sodium citrate is currently the most important ones citrate, safe and non-toxic；It is excellent Chelating agent is dissolved in the solution of sodium bicarbonate, to the Ca in degreasing agent liquid obtained2+、Mg2+、Fe2+Etc. foreign metal ions tool There is excellent sequestering power；Soluble complex compound can be formed with these foreign metal ions, and then increases these impurity gold The solubility for belonging to ion prevents degreasing agent liquid from too fast aging occur and leads to that degreasing is not clean, is not thorough；In addition, lemon The performance that lemon acid sodium is also adjusted and buffered with pH, while also there is excellent stability.
Sugared two glycosides of alkyl for compounding low bubble solubilizing surfactant selection liquid, be a kind of performance more comprehensively it is novel it is non-from Sub- surfactant has both the characteristic of conventional nonionic and anion surfactant, has high surface, good ecology Safety and intermiscibility are internationally recognized preferred " green " functional surfactants；It is soluble easily in water without cloud point, it is easy to dilute It releases, there is good wetability, compatibility is splendid, has good syneryistic effect with other surfaces activating agent, as de- One of the main component of fat cleaning, can greatly enhance the effect of degreasing；Also there is stronger broad spectrum antibiotic activity simultaneously.
Component B includes deionized water, Complexing/Dispersing Agent, corrosion inhibiter, low bubble solubilizer, modified isomery ether surfactants And modified polyether, and deionized water, low bubble solubilizer, Complexing/Dispersing Agent, corrosion inhibiter, modified isomery ether surfactants and change Property polyethers mass ratio be 65:1:1:5:10:18.
Wherein, Complexing/Dispersing Agent selection liquid modified alkyl naphthalene sulfonic acid potassium, with good water solubility, high power to remove oil it is excellent The Ca in degreasing agent liquid can be complexed in point2+、Mg2+Etc. foreign metal ions, while can be to the Ca in degreasing agent liquid2+、Mg2+、 Cu2+、Fe2+Equal metal ions have very strong dispersibility, have splendid dispersion effect to solia particle and oligomer gel.It is slow The acrylic resin (PAA) of agent selection liquid is lost, PAA is weakly acidic, can reduce corruption of the inorganic base in component A to equipment Erosion；Also there is scale removal performance simultaneously, it can be with the Ca in degreasing agent liquid2+、Mg2+Etc. foreign metal ions form stable compound, And then fouling in Sprayer Circulation pipeline can be slowed down, avoid the blocking of Sprayer Circulation pipeline and nozzle.Low bubble solubilizer selection is solid The paratoluenesulfonic acid sodium salt of state, paratoluenesulfonic acid sodium salt is soluble easily in water, is mainly used as solubilizer, after paratoluenesulfonic acid sodium salt is added, can make The viscosity of degreasing agent liquid, cloud point can all be declined, and then can increase the solubility of degreasing agent liquid, avoid degreasing agent liquid point Layer；The transparency that degreasing agent liquid can be increased simultaneously, achievees the effect that as clear as crystal；The storage of degreasing agent liquid can additionally be increased Stability.
It is that modified isomery undecyl alcohol (is referred to as modified isomery ten with ethylene oxide condensate to be modified isomery ether surfactants One alcohol polyoxyethylene ether), modified isomery undecyl alcohol polyoxyethylene ether is the low bubble nonionic surfactant of Almightiness type of new generation, nothing Poison, it is safe to use；Dissolubility is good in water, and solubilising is strong, has excellent washing force and infiltration emulsifying capacity, and dosage is small, Save raw material；With it is cloudy, non-, cationic can compatibility, substantially improve detergency and washing power, degreasing result be more preferable.It is modified Polyethers is the polymer that fatty alcohol is obtained through sudden reaction in the presence of a catalyst with ethylene oxide condensate, soluble easily in water, tool There are excellent emulsification, washing, wettability, primarily serves the effect of cleaning, defoaming.
S3, tap water washing process：At normal temperatures, twice are carried out certainly to the surface of the obtained workpiece of step S2 with tap water Water hydro-peening.
S4, pure water washing process：At normal temperatures, twice pure water spray is carried out to the surface of the obtained workpiece of step S3 with pure water It washes, makes the μ s/cm of the conductivity of pure water≤50.
S5, interface activation technique：At normal temperatures, step S4 is obtained with any interfacial agent in Examples 1 to 5 The surface of workpiece carries out interface activation and handles 1.2min, changes the electrostatic distribution of workpiece surface, so that moisture film is uniformly sprawled, and then disappear Except the water mark and current mark of workpiece surface, the adhesive force of workpiece and coating can be enhanced.
Wherein, the μ s/cm of the conductivity of interfacial agent≤30, to keep the clean level of interfacial agent liquid.
S6, dewatering process：The moisture on the surface for the workpiece that removal step S5 is obtained.Specifically, work is blown away with compressed air The residual moisture on part surface.
S7, stoving process：The surface of the obtained workpiece of step S6 is dried.Body, it will with 80 DEG C of circulating airs The skin drying of workpiece, drying time 10min.
S8, cooling technique：The surface of the obtained workpiece of step S7 is cooled down.It specifically, can be natural after workpiece drying It is cooling also to force cooling treatment, the workpiece being disposed that can be applied into coating process according to technological requirement cold wind Dress.
Certainly, workpiece surface spray soak method of the invention is also not limited to above-described embodiment 6, embodiment 7 With embodiment 8.When in step s 2, as used existing degreasing agent in embodiment 6, skimming temp is preferably 50~80 DEG C of model In enclosing, the total time of pre- degreasing and degreasing twice technique is preferably any value in 9~15min, and selected antifoaming agent is also simultaneously It is not limited to Polyether Modified Polysiloxanes Defoaming Agent, other antifoaming agent can also be used.As embodiment 7 and embodiment 8 are selected When degreasing agent, the total time of pre- degreasing and degreasing twice technique is preferably any value in 3~8min, the time of specific pre- degreasing Time with degreasing is depending on actual production line.
Certainly, the ingredient of degreasing agent selected in embodiment 7 and embodiment 8 is also not limited to this, component A and component B The mass percent for accounting for degreasing agent is both preferably 3%~5%.In the ingredient of component A, deionized water, inorganic base, complexing agent and The mass ratio for compounding low bubble solubilizing surfactant is preferably 65~70:15~25:1~2:Any value in 8~14.Inorganic base One or more groups preferably in bicarbonate (such as sodium bicarbonate), carbonate (such as sodium carbonate, potassium carbonate) or silicate It closes, complexing agent is preferably one or more combinations in citrate, EDTA, gluconate, compounds the solubilized surface of low bubble Activating agent is preferably one or more combinations of alkyl glycosides or modified isomery alcohol ethers.
In the ingredient of component B, deionized water, Complexing/Dispersing Agent, corrosion inhibiter, low bubble solubilizer, isomery alcohol ether surface are lived The mass ratio of property agent and modified polyether is preferably 50~70:1~2:0~5:5~10:8~15:8~25.Complexing/Dispersing Agent is excellent The one or more combinations being selected as in polycarboxylate or modified alkyl naphthalene sulfonate, corrosion inhibiter are preferably HEDP, PAA or propine One or more combinations in the alcoxylates of alcohol, low bubble solubilizer are preferably benzene sulfonic acid sodium salt class (such as xylene monosulfonic acid Sodium, paratoluenesulfonic acid sodium salt or cumene sodium sulfonate etc.), sealing end/modification isomery ether surfactants are preferably isomery alcohol and epoxy Oxide condensate.Modified polyether is the oligomer of preferably terminal hydroxy group, i.e., by the compound containing active hydrogen group, such as：Fatty alcohol Polyoxyethylene ether, fatty alcohol polyoxypropylene ether, fatty alcohol and ethylene oxide condensate, fatty alcohol and propylene oxide condensation product, fat Fat alcohol is made existing for catalyst through sudden reaction with one or more combinations etc. in epoxy butane condensation product.
Originally washing is preferably 1~2 any value in step s3.In step s 4, pure water washing is not limited to water Twice are washed, as long as ensureing the μ s/cm of the conductivity of final pure water≤50.The time of interface activation processing is preferred in step s 5 In the range of 0.5~1.5min.In step S6, compressed air removal is not limited to the water removal mode of workpiece surface, Other water removal modes can also be used.In the step s 7, drying temperature is preferably in the range of 60~80 DEG C, and drying time is preferred For 10~20min, naturally it is also possible to be dried using other modes.In step s 8, the type of cooling is not limited to nature It is cooling, it can also be cooled down according to actual needs using cold wind or other modes pressure.
To sum up, workpiece surface spray soak method of the invention is easy to operate, and interface activation treatment process is in room temperature Under just carry out, it is energy saving, and can change after being handled by interface activation workpiece surface electrostatic distribution, keep moisture film uniform It sprawls, the water mark and current mark of workpiece surface can be eliminated, enhance the adhesive force of workpiece and coating.By the interface activation of the present invention Treated, and workpiece is less prone to a problem that workpiece cracks, scraps.Interfacial activity used at the same time is without phosphorus degradable, more Environmental protection, it is smaller to the actual bodily harm of environment and production scene worker.In addition, interface activation processing time is short of the present invention is used, effect Rate is high.
More than, only it is presently preferred embodiments of the present invention, is not the limitation for doing other forms to invention, it is any to be familiar with Professional and technical personnel is changed or is modified as the equivalence enforcement of equivalent variations possibly also with the technology contents of the disclosure above Example.But it is every without departing from technical solution of the present invention content, according to the technical essence of the invention to appointing made by above example What simple modification, equivalent variations and remodeling, still falls within the protection domain of technical solution of the present invention.

Claims (10)

1. a kind of workpiece interfacial agent, which is characterized in that live including deionized water, Interfacial complexation agent, compound low bubble surface Property agent, antistatic agent, moisture film spreading agent and adhesion promoter；
Wherein, the deionized water in the interfacial agent, Interfacial complexation agent, compound low foaming surfactant, antistatic agent, water The mass ratio of film spreading agent and adhesion promoter is 60~80:0~10:5~15:1~15:1~10:0.5~5；
The antistatic agent is ethoxylated amines, in the carboxylate of the quaternary ammonium salt of ionic, the tertiary ammonium salt of ionic, ionic One or more combinations；
The moisture film spreading agent is in alcohol ethers and ethylene oxide condensate, fluorine-containing surfactant, hc-surfactant One or more combinations.
2. workpiece interfacial agent as described in claim 1, which is characterized in that
The Interfacial complexation agent is one or more combinations in polycarboxylate, modified alkyl naphthalene sulfonate；
The compound low foaming surfactant is alcohol ethers and ethylene oxide condensate.
3. workpiece interfacial agent as claimed in claim 2, which is characterized in that
The adhesion promoter is one or more combinations in methoxy silane, Ethoxysilane, amino silane.
4. a method of preparing workpiece interfacial agent as claimed any one in claims 1 to 3, which is characterized in that Include the following steps：
S1, the Interfacial complexation agent and compound low foaming surfactant are add to deionized water, be uniformly mixed and dissolved；
S2, the antistatic agent, moisture film spreading agent and adhesion promoter are added in the solution that step S1 is obtained, mixing is equal It is even and dissolve；
After S3, the solution cooling that step S2 is obtained, filtering, obtained filtrate is the interfacial agent.
5. a kind of workpiece surface spray soak method, which is characterized in that include the following steps：
S1, piece uploading：Pending workpiece is placed on a conveyor, each spray equipment is passed sequentially through on transfer matic；
S2, degreasing process：Pre- degreasing and degreasing twice technique are carried out respectively to the surface of the pending workpiece with degreasing agent；
S3, tap water washing process：At normal temperatures, hydro-peening is carried out to the surface of the obtained workpiece of step S2 with tap water；
S4, pure water washing process：At normal temperatures, pure water hydro-peening is carried out to the surface of the obtained workpiece of step S3 with pure water；
S5, interface activation technique：At normal temperatures, with interfacial agent as claimed any one in claims 1 to 3 to step S4 The surface of obtained workpiece carries out interface activation processing, changes the electrostatic distribution of workpiece surface, eliminate workpiece surface water mark and Current mark；
S6, dewatering process：The moisture on the surface for the workpiece that removal step S5 is obtained；
S7, stoving process：The surface of the obtained workpiece of step S6 is dried；
S8, cooling technique：The surface of the obtained workpiece of step S7 is cooled down.
6. workpiece surface spray soak method as claimed in claim 5, which is characterized in that
In step s 4, after pure water hydro-peening, ensure the μ s/cm of the conductivity of pure water≤50；
In step s 5, the μ of the conductivity of the interfacial agent≤30 s/cm, time of the interface activation processing is 0.5~ 1.5min。
7. workpiece surface spray soak method as claimed in claim 6, which is characterized in that
In step s 2, the total time of the pre- degreasing and ungrease treatment is 3~8min；
In the step s 7, the temperature of the drying is 60~80 DEG C.
8. such as claim 5 to 7 any one of them workpiece surface spray soak method, which is characterized in that
In step s 2, the degreasing agent includes the following components'mass percentage：3%~5% component A, 3%~5% component B With the deionized water or tap water of surplus；
The component A includes deionized water, inorganic base, complexing agent and the low bubble solubilizing surfactant of compounding；
Wherein, the deionized water in the component A, inorganic base, complexing agent and the low mass ratio for steeping solubilizing surfactant of compounding It is 65~70:15~25:1~2:8~14；
The component B includes deionized water, Complexing/Dispersing Agent, corrosion inhibiter, low bubble solubilizer, sealing end/modification isomery alcohol ether surface Activating agent and modified polyether；
Wherein, the deionized water in the component B, Complexing/Dispersing Agent, corrosion inhibiter, low bubble solubilizer, sealing end/modification isomery alcohol ether The mass ratio of surfactant and modified polyether is 50~70:1~2:0~5:5~10:8~15:8~25.
9. workpiece surface spray soak method as claimed in claim 8, which is characterized in that
In the component A, the inorganic base is one or more combinations in bicarbonate, carbonate, silicate；
The complexing agent is one or more combinations in citrate, ethylenediamine tetra-acetic acid, gluconate；
The low solubilizing surfactant of steeping of the compounding is one or more combinations in alkyl glycosides, modified isomery alcohol ethers.
10. workpiece surface spray soak method as claimed in claim 9, which is characterized in that
In the component B, the Complexing/Dispersing Agent is one or more groups in polycarboxylate, modified alkyl naphthalene sulfonate It closes；
The corrosion inhibiter is one or more in the alcoxylates of 1-hydroxy ethylidene-1,1-diphosphonic acid, acrylic resin, propilolic alcohol Combination；
The low bubble solubilizer is benzene sulfonic acid sodium salt class；
The sealing end/modification isomery ether surfactants are isomery alcohol and ethylene oxide condensate；
The modified polyether is the oligomer of terminal hydroxy group.
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CN112893066A (en) * 2021-01-15 2021-06-04 合肥瑞昇流体机械制造有限公司 Surface coating process for processing fire-fighting equipment
CN114610126A (en) * 2020-12-09 2022-06-10 江西新菲新材料有限公司 Method for forming organic hydrophilic film and microgroove, soaking plate and heat sink
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CN109304287A (en) * 2018-11-30 2019-02-05 沈阳帕卡濑精有限总公司 A kind of pre-treating technology suitable for vehicle factor high alumina mixing vehicle body
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