CN104004448A - Single-component cathodic electrophoretic coating for automotive primer - Google Patents
Single-component cathodic electrophoretic coating for automotive primer Download PDFInfo
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- CN104004448A CN104004448A CN201410184005.4A CN201410184005A CN104004448A CN 104004448 A CN104004448 A CN 104004448A CN 201410184005 A CN201410184005 A CN 201410184005A CN 104004448 A CN104004448 A CN 104004448A
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Abstract
The invention belongs to the technical field of electrophoretic coating, and in particular relates to a single-component cathodic electrophoretic coating for an automotive primer. The cathodic electrophoretic coating is characterized by comprising the following compositions by weight percentage: 40%-50% of a film-forming base material, 0.1%-1% of a film-forming auxiliary agent, 0.05%-0.5% of a defoaming agent, 15%-25% of titanium dioxide, 10%-20% of a talcum powder, and deionized water added to the 100%. A cationic semi-closed MDI adopted as a curing agent is used for overcoming the problems brought by a curing agent-resin co-mixing process and comprising instable electrophoretic coating film composition and ratio, and poor stability and easy layering of an electrophoresis bath solution, and besides, the cost can be reduced and the toxicity can be reduced; a cationic group-containing resin can generate hydrophilic-hydrophobic transformation on the surface of a workpiece in an electrophoresis coating process, water dispersion and co-electrophoresis property of closed isocyanate are increased, and the problems brought by the curing agent-resin co-mixing process are effectively overcome.
Description
Technical field
The invention belongs to electrophoretic paint technical field, be specially a kind of single component cathode electrophoresis dope for vehicle paint base.
Background technology
Electrophoretic paint is the water-borne coatings that a class is only applicable to electrophoretic painting, it is dissociable in water becomes film-formable water-soluble, film-forming thing, in DC electric field, swimming is to contrary electrode, and deposit in the above and form film, according to the polarity difference of the water-soluble, film-forming thing of dissociation, can be divided into anode electrophoresis dope and cathode electrophoresis dope two classes.
There is anodised shortcoming in anode electrophoresis dope, meeting erode metallic surfaces (except aluminium and torpescence metal), tarnishes it, therefore anode electrophoresis dope is generally only made anti-corrosion primer, can not meet the requirement of surface decoration.It is higher and have a cathode electrophoresis dope of decorative effect that people have developed corrosion resisting property in early 1970s.
Compare with other dip-coating, spraying watersoluble baking paint with traditional solvent based coating, cathode electrophoresis dope has unrivaled superiority: 1, taking water as solvent, security is good; 2, the industrial coating line that is suitable for scale operation, economic benefit is high; 3, coating densification, even thickness is controlled, and wet film water ratio is low, improves work efficiency; 4, apply evenly; 5, the solid content of working fluid low (10-20%), carry-over loss is little, and coating process parameter is easy to adjust, and coating quality is stable.
General electrophoretic paint is often selected the epoxy resin of fine corrosion resistance with resin, contain many hydroxyls and ehter bond, metal is had to fabulous cohesive force, paint film is tough and tensile, chemical-resistant is excellent, erosion resistance is strong, be suitable for priming paint, but shortcoming is that after solidifying, internal stress is large, and matter is hard and crisp, causes that this series products ubiquity snappiness is not good, the not high defect of gloss.Therefore anticathode electrophoretic paint is paid attention to widely with the research that epoxy resin carries out modification.
Epoxy-silicone resin, as a kind of new modified epoxy resin, is taking epoxy resin as skeleton, the modified resin by organosilicon inarch to the epoxy resin end of the chain.The grafting of organosilicon segment has improved hydrophobicity, weathering resistance and the high and low temperature resistance of epoxy resin.The polydimethylsiloxane--modified Study On O-cresol Epoxy Resin such as Hou Qingpu, makes that its internal stress significantly reduces, cracking resistance index greatly improves.The reactive silicone oligomer polycondensation that the employing epoxy resin such as Lu Zhaoling and compatibility are good, makes epoxy modified silicone resin, has the advantage of epoxy resin and silicone resin concurrently, has not only improved thermotolerance, and has had good preservative property.
Summary of the invention
The present invention is just for above technical problem, a kind of organic silicone oil and organic amine modified epoxy of adopting is provided, add cationic blocked isocyanate curing agent, in organic acid and after, make film forming base-material, in deionized water, add auxiliary agent, pigment and filler etc. to be mixed with organic-silicon-modified Epoxy Cathodic Electrodeposition Coating, for the single component cathode electrophoresis dope of vehicle paint base, its electrophoretic painting and solidify after can make the automobile bottom coating film of excellent performance.
Concrete technical scheme of the present invention is as follows:
For a single component cathode electrophoresis dope for vehicle paint base, comprise the composition of following weight percent:
As preferably, a kind of single component cathode electrophoresis dope for vehicle paint base, comprises the composition of following weight percent:
Further preferred, for the single component cathode electrophoresis dope of vehicle paint base, comprise the composition of following weight percent:
Single component cathode electrophoresis dope for vehicle paint base described above, can adopt ordinary method preparation also can adopt following steps to be prepared:
1) semiclosed MDI's is synthetic
MDI and a small amount of catalyzer are joined in the four-hole bottle with thermometer, agitator and separating funnel, be warming up to 40 DEG C, insulated and stirred 30min; Ethylene glycol monoethyl ether and ε-caprolactam are joined in reaction system by separating funnel again, be warming up to 70 DEG C, isothermal reaction 2h, finishes reaction and obtains semi-enclosed MDI;
2) modifying epoxy resin by organosilicon is synthetic
In the four-hole bottle with thermometer, agitator and condenser, add ethylene glycol monobutyl ether, be warming up to 80 DEG C, then add epoxy resin, be warming up to 120-130 DEG C, epoxy resin is all dissolved; Be cooled to 80 DEG C, add organic silicone oil to be warming up to 90-100 DEG C, stirring reaction 2h; Be cooled to 80 DEG C, add diethanolamine, be warming up to 90-100 DEG C, insulated and stirred 2h; Be cooled to again 80 DEG C, add semi-enclosed MDI, be warming up to 110 DEG C, insulated and stirred 2.5h; Be cooled to 70 DEG C, add lactic acid neutralization, continue insulated and stirred 0.5h, stopped reaction; In reaction mixture, add lactic acid and deionized water, with emulsification pretreatment stirrer stirring 1-2h, obtain film forming base-material;
3) formula of cathode electrophoresis dope stoste, count with quality percentage composition:
4) electrophoresis process
First the cathode electrophoresis dope stoste containing modifying epoxy resin by organosilicon is stirred with high speed dispersor, join in electrophoresis chamber, slowly adding deionized water to be diluted to solid content is 18%, filter, regulate the pH value to 5.0 of tank liquor with acetic acid, with high speed dispersor stirring 24 hours, obtain directly carrying out the coating emulsion of electrophoresis experiment.Do anode with stainless steel plate, with process degreasing, tinplate after phosphatization is as negative electrode, coated article iron plate all needed to carry out pre-treatment through following operation before galvanic deposit: sand papering → oil removing → washing → rust cleaning → washing → neutralization → washing → phosphatization (normal temperature) → wash → dry up, and put into moisture eliminator and preserve.Electrophoretic voltage is 150V, and electrophoresis time is 3 minutes, after electrophoresis finishes, takes out negative electrode iron plate and first removes the paint liquid on residual surface with tap water, then use distilled water flushing, at 180 DEG C, solidifies 30 minutes, makes cathode electrophoresis dope paint film, and carries out performance test.
Described catalyzer is the ethylene glycol monoethyl ether solution containing 10% dibutyl tin dilaurate, and addition is 0.5% of MDI quality.Described epoxy resin is bisphenol A type epoxy resin, and oxirane value is 0.44, and epoxy equivalent (weight) is 210-244, and molecular weight is 426-488, and softening temperature is 15-23 DEG C.Described organic silicone oil is organo-siloxane monomer 1706.Described film coalescence aid is the Texanol of Yi Si Man of the U.S..Described defoamer is the BYK-028 of Bi Ke chemical company.Described titanium dioxide is titanium dioxide TR-92, and talcum powder is of a size of 600 orders.
Positively effect of the present invention is embodied in:
(1), adopt cationic semiclosed MDI to do that solidifying agent is coated with film component in order to the electrophoresis that overcomes solidifying agent and resin alloy technique and bring and proportioning is unstable, the problems such as electrophoresis groove liquid stability is not good, easy layering, can reduce costs minimizing toxicity simultaneously.
(2), hydrophilic-hydrophobic transformation can occur at workpiece surface the resin of cation group in electrophoresis painting dressing process, increase blocked isocyanate water dispersible and swimming property altogether, effectively overcome the problem that solidifying agent and resin alloy technique are brought.
(3), compared with TDI, MDI not only low price and also toxicity little, adopt cation-modified MDI to make solidifying agent can effectively to reduce the cost of coating, and producing, construction process is pollution-free generation, be conducive to industrial safety protection.
Brief description of the drawings
Fig. 1 is silicon-modified epoxy cathode electrophoresis dope preparation technology schematic flow sheet;
Fig. 2 is silicon-modified epoxy cathode electrophoresis dope sample preparation technology schematic flow sheet.
Fig. 3 is the MDI infrared spectrogram after sealing
Embodiment
The single component cathode electrophoresis dope for vehicle paint base in the present invention, comprises the composition of following weight percent:
As preferably, the single component cathode electrophoresis dope that this is used for vehicle paint base, comprises the composition of following weight percent:
This is used for the single component cathode electrophoresis dope of vehicle paint base, can also further preferably carry out proportioning according to the composition of following weight percent:
For the single component cathode electrophoresis dope of vehicle paint base, can adopt following steps to be prepared:
1) semiclosed MDI's is synthetic
MDI and a small amount of catalyzer are joined in the four-hole bottle with thermometer, agitator and separating funnel, be warming up to 40 DEG C, insulated and stirred 30min; Ethylene glycol monoethyl ether and ε-caprolactam are joined in reaction system by separating funnel again, be warming up to 70 DEG C, isothermal reaction 2h, finishes reaction and obtains semi-enclosed MDI;
2) modifying epoxy resin by organosilicon is synthetic
In the four-hole bottle with thermometer, agitator and condenser, add ethylene glycol monobutyl ether, be warming up to 80 DEG C, then add epoxy resin, be warming up to 120-130 DEG C, epoxy resin is all dissolved; Be cooled to 80 DEG C, add organic silicone oil to be warming up to 90-100 DEG C, stirring reaction 2h; Be cooled to 80 DEG C, add diethanolamine, be warming up to 90-100 DEG C, insulated and stirred 2h; Be cooled to again 80 DEG C, add semi-enclosed MDI, be warming up to 110 DEG C, insulated and stirred 2.5h; Be cooled to 70 DEG C, add lactic acid neutralization, continue insulated and stirred 0.5h, stopped reaction; In reaction mixture, add lactic acid and deionized water, with emulsification pretreatment stirrer stirring 1-2h, obtain film forming base-material;
3) formula of cathode electrophoresis dope stoste, mixes according to above proportioning;
4) electrophoresis process
First the cathode electrophoresis dope stoste containing modifying epoxy resin by organosilicon is stirred with high speed dispersor, join in electrophoresis chamber, slowly adding deionized water to be diluted to solid content is 18%, filter, regulate the pH value to 5.0 of tank liquor with acetic acid, with high speed dispersor stirring 24 hours, obtain directly carrying out the coating emulsion of electrophoresis experiment.Do anode with stainless steel plate, with process degreasing, tinplate after phosphatization is as negative electrode, coated article iron plate all needed to carry out pre-treatment through following operation before galvanic deposit: sand papering → oil removing → washing → rust cleaning → washing → neutralization → washing → phosphatization (normal temperature) → wash → dry up, and put into moisture eliminator and preserve.Electrophoretic voltage is 150V, and electrophoresis time is 3 minutes, after electrophoresis finishes, takes out negative electrode iron plate and first removes the paint liquid on residual surface with tap water, then use distilled water flushing, at 180 DEG C, solidifies 30 minutes, makes cathode electrophoresis dope paint film, and carries out performance test.
Described catalyzer is the ethylene glycol monoethyl ether solution containing 10% dibutyl tin dilaurate.Addition is 0.5% of MDI quality, and described epoxy resin is bisphenol A type epoxy resin, and oxirane value is 0.44, and epoxy equivalent (weight) is 210-244, and molecular weight is 426-488, and softening temperature is 15-23 DEG C.Described organic silicone oil is organo-siloxane monomer 1706.Described film coalescence aid is the Texanol of Yi Si Man of the U.S..Described defoamer is the BYK-028 of Bi Ke chemical company.Described titanium dioxide is titanium dioxide TR-92, and talcum powder is of a size of 600 orders.
Research shows, at the appropriate small molecule active group of macromolecular compound segment end grafting, can improve on the one hand the reactive behavior again of material, can not affect again the physicals of material itself simultaneously.The modified resin of introducing-NCO group is greatly improved in performance.1, in hydrophobicity be improved significantly; 2, on sticking power, improve a rank than average before modification; 3, salt water resistance etching time is long.
Contain-NCO of isocyanic ester group, reactive behavior is larger, can be relatively easily with epoxy resin in hydroxyl or epoxy reaction, but toxicity is larger.Adopting the isocyanic ester of sealing to make it-NCO group is in closed state.Sealing-at high temperature can there is deblocking in NCO group, dissociate active-NCO group on the one hand with resin segment on active hydrogen reaction, realize intermolecular cross-linking (Fig. 1), thereby play the effect that improves paint film property; Dissociate on the other hand-NCO group is penetrated between epoxy resin and protected seam, reacts with a small amount of water wherein, generates the urea key stronger with metal surface adsorptive power.Adopt cationic sealing MDI solidifying agent can effectively overcome electrophoresis painting film component and proportioning that solidifying agent and resin alloy technique brings unstable, the shortcomings such as electrophoresis groove liquid stability is not good, easy layering, and can reduce costs and realize green coating target.
Further preferred, the formula of cathode electrophoresis dope stoste is: film forming base-material (solid content 40%), and film coalescence aid, defoamer, titanium dioxide, the mass ratio of talcum powder and deionized water is 45:0.5:0.2:20:15:100; Electrophoresis process is 150V and 3 minutes.
For technique means, inventive features that the present invention is realized, reach object and effect is easy to understand, describe the present invention below in conjunction with specific examples.
Embodiment 1:
Semiclosed MDI used in embodiment is below by aforementioned 1 in synthetic) liquid that makes of step.The preparation method of film forming base-material, modifying epoxy resin by organosilicon and electrophoresis process method are respectively by aforesaid 2), 3) and 4) method is carried out described in step.
(1) formula
| Title | Specification | Quality is divided content in vain |
| Film forming base-material | Solid content 40% | 40 |
| Film coalescence aid | Chemical pure | 0.3 |
| Defoamer | Chemical pure | 0.1 |
| Titanium dioxide | Technical grade | 15 |
| Talcum powder | Technical grade | 18 |
| Deionized water | Specific conductivity < 15 μ s/cm | 100 |
(2) electrophoresis process
Do anode with stainless steel plate, with process degreasing, the tinplate after phosphatization is as negative electrode, and electrophoresis three minutes under 150V, washes, and toasts 30 minutes at 180 DEG C.Coated article iron plate all needed to carry out pre-treatment through following operation before galvanic deposit: sand papering → oil removing → washing → rust cleaning → washing → neutralization → washing → phosphatization (normal temperature) → wash → dry up, and put into moisture eliminator and preserve.Before electrophoresis, first organic-silicon-modified Epoxy Cathodic Electrodeposition Coating stoste is stirred, get a certain amount of pH to 5.0 that regulates tank liquor in electrophoresis chamber with acetic acid, the induction stirring of adding.
(3) paint film property
| Project | Performance |
| Appearance | Smooth even |
| Thickness/μ m | 20-25 |
| Hardness | 3H |
| Sticking power | 1-2 |
| Resistance to acetone | >120h |
| Resistance to 5%H 2SO 4 | >48h |
| Resistance to 5%NaOH | >240h |
| Resistance to 3%NaCl | >240h |
| Water tolerance | 480h |
[0060]?
| Shock-resistance/cm | ≥50 |
| Snappiness/mm | ≤1 |
Embodiment 2
(1) formula
| Title | Specification | Massfraction |
| Film forming base-material | Solid content 40% | 40 |
| Film coalescence aid | Chemical pure | 0.3 |
| Defoamer | Chemical pure | 0.1 |
| Titanium dioxide | Technical grade | 16 |
| Talcum powder | Technical grade | 17 |
| Deionized water | Specific conductivity < 15 μ s/cm | 100 |
(2) electrophoresis process
With embodiment 1.
(3) paint film property
| Project | Performance |
| Appearance | Smooth even |
| Thickness/μ m | 20-25 |
| Hardness | 3H |
| Sticking power | 1-2 |
| Resistance to acetone | >120h |
| Resistance to 5%H 2SO 4 | >48h |
| Resistance to 5%NaOH | >240h |
| Resistance to 3%NaCl | >240h |
| Water tolerance | 480h |
| Shock-resistance/cm | ≥50 |
| Snappiness/mm | ≤1 |
Embodiment 3
(1) formula
| Title | Specification | Massfraction |
| Film forming base-material | Solid content 40% | 45 |
| Film coalescence aid | Chemical pure | 0.3 |
| Defoamer | Chemical pure | 0.5 |
[0071]?
| Titanium dioxide | Technical grade | 17 |
| Talcum powder | Technical grade | 16 |
| Deionized water | Specific conductivity < 15 μ s/cm | 100 |
(2) electrophoresis process
With embodiment 1.
(3) paint film property
| Project | Performance |
| Appearance | Smooth even |
| Thickness/μ m | 20-25 |
| Hardness | 3H |
| Sticking power | 1-2 |
| Resistance to acetone | >120h |
| Resistance to 5%H 2SO 4 | >48h |
| Resistance to 5%NaOH | >240h |
| Resistance to 3%NaCl | >240h |
| Water tolerance | 480h |
| Shock-resistance/cm | ≥50 |
| Snappiness/mm | ≤1 |
Embodiment 4
(1) formula
| Title | Specification | Massfraction |
| Film forming base-material | Solid content 40% | 45 |
| Film coalescence aid | Chemical pure | 0.5 |
| Defoamer | Chemical pure | 0.3 |
| Titanium dioxide | Technical grade | 18 |
| Talcum powder | Technical grade | 15 |
| Deionized water | Specific conductivity < 15 μ s/cm | 100 |
(2) electrophoresis process
With embodiment 1.
(3) paint film property
| Project | Performance |
[0083]?
| Appearance | Smooth even |
| Thickness/μ m | 20-25 |
| Hardness | 3H |
| Sticking power | 1-2 |
| Resistance to acetone | >120h |
| Resistance to 5%H 2SO 4 | >48h |
| Resistance to 5%NaOH | >240h |
| Resistance to 3%NaCl | >240h |
| Water tolerance | 480h |
| Shock-resistance/cm | ≥50 |
| Snappiness/mm | ≤1 |
Embodiment 5
(1) formula
| Title | Specification quality mark |
| Film forming base-material | Solid content 40%50 |
| Film coalescence aid | Chemical pure 0.7 |
| Defoamer | Chemical pure 0.5 |
| Titanium dioxide | Technical grade 19 |
| Talcum powder | Technical grade 14 |
| Deionized water | Specific conductivity < 15 μ s/cm100 |
(2) electrophoresis process
With embodiment 1.
(3) paint film property
| Project | Performance |
| Appearance | Smooth even |
| Thickness/μ m | 20-25 |
| Hardness | 3H |
| Sticking power | 1-2 |
| Resistance to acetone | >120h |
| Resistance to 5%H 2SO 4 | > 48h slightly comes off |
| Resistance to 5%NaOH | >240h |
| Resistance to 3%NaCl | >240h |
[0091]?
| Water tolerance | 480h |
| Shock-resistance/cm | ≥50 |
| Snappiness/mm | ≤1 |
Embodiment 6
(1) formula
| Title | Specification | Massfraction |
| Film forming base-material | Solid content 40% | 50 |
| Film coalescence aid | Chemical pure | 0.7 |
| Defoamer | Chemical pure | 0.5 |
| Titanium dioxide | Technical grade | 20 |
| Talcum powder | Technical grade | 12 |
| Deionized water | Specific conductivity < 15 μ s/cm | 100 |
(2) electrophoresis process
With embodiment 1.
(3) paint film property
| Project | Performance |
| Appearance | Smooth even |
| Thickness/μ m | 20-25 |
| Hardness | 3H |
| Sticking power | 1-2 |
| Resistance to acetone | >120h |
| Resistance to 5%H 2SO 4 | > 48h seriously comes off |
| Resistance to 5%NaOH | >240h |
| Resistance to 3%NaCl | >240h |
| Water tolerance | 480h |
| Shock-resistance/cm | ≥50 |
| Snappiness/mm | ≤1 |
Embodiment 7
(1) formula
| Title | Specification | Massfraction |
| Film forming base-material | Solid content 40% | 30 |
| Film coalescence aid | Chemical pure | 1.0 |
[0102]?
| Defoamer | Chemical pure | 0.5 |
| Titanium dioxide | Technical grade | 25 |
| Talcum powder | Technical grade | 20 |
| Deionized water | Specific conductivity < 15 μ s/cm | 100 |
(2) electrophoresis process
With embodiment 1.
(3) paint film property
| Project | Performance |
| Appearance | Smooth even |
| Thickness/μ m | 15-20 |
| Hardness | 3H |
| Sticking power | 1-2 |
| Resistance to acetone | >100h |
| Resistance to 5%H 2SO 4 | > 48h seriously comes off |
| Resistance to 5%NaOH | >200h |
| Resistance to 3%NaCl | >200h |
| Water tolerance | 480h |
| Shock-resistance/cm | ≥50 |
| Snappiness/mm | ≤1.5 |
As seen from the above embodiment, the advantages such as, acid and alkali-resistance corrosion-resistant as main cathode electrophoresis dope has taking epoxy resin, cleaning, environmental protection, but there is the shortcomings such as sticking power is not high, wearability is unsatisfactory, water tolerance is bad, adopt organic silicone oil epoxy resin resin to be carried out modification and improved sticking power, water tolerance, the shock-resistance of cathode electrophoresis dope, increase film thickness; Adopt ethylene glycol monoethyl ether, ε-caprolactam to reduce deblocking temperature as the encapsulant of the cationic semiclosed MDI of preparation; Adopt cationic semiclosed MDI to do that solidifying agent is coated with film component in order to the electrophoresis that overcomes solidifying agent and resin alloy technique and bring and proportioning is unstable, the problems such as electrophoresis groove liquid stability is not good, easy layering, can reduce costs minimizing toxicity simultaneously.In electrophoretic painting process can there is at workpiece surface hydrophilic-hydrophobic transformation in the resin of cation group, and increase blocked isocyanate water dispersible and altogether swimming property, overcome the problem that solidifying agent and resin alloy technique are brought effectively.Compared with TDI, MDI not only low price and also toxicity little, adopt cation-modified MDI to make solidifying agent can effectively to reduce the cost of coating, and producing, construction process is pollution-free generation, be conducive to industrial safety protection.
Claims (6)
1. for a single component cathode electrophoresis dope for vehicle paint base, it is characterized in that comprising the composition of following weight percent:
Film forming base-material 40%-50%
Film coalescence aid 0.1%-1%
Defoamer 0.05%-0.5%
Titanium dioxide 15%-25%
Talcum powder 10%-20%
Deionized water is added into 100%.
2. the single component cathode electrophoresis dope for vehicle paint base according to claim 1, is characterized in that comprising the composition of following weight percent:
Film forming base-material 40%-50%
Film coalescence aid 0.3%-0.7%
Defoamer 0.1%-0.5%
Titanium dioxide 15%-20%
Talcum powder 12%-18%
Deionized water is added into 100%.
3. the single component cathode electrophoresis dope for vehicle paint base according to claim 1, is characterized in that comprising the composition of following weight percent:
Film forming base-material 45%
Film coalescence aid 0.7%
Defoamer 0.3%
Titanium dioxide 20%
Talcum powder 15%
Deionized water is added into 100%.
4. the single component cathode electrophoresis dope for vehicle paint base according to claim 1, is characterized in that: described film coalescence aid is the Texanol of Yi Si Man of the U.S..
5. the preparation method of the single component cathode electrophoresis dope for vehicle paint base according to claim 1, is characterized in that: described defoamer is the BYK-028 of Bi Ke chemical company.
6. the preparation method of the single component cathode electrophoresis dope for vehicle paint base according to claim 1, is characterized in that: described titanium dioxide is titanium dioxide TR-92, and talcum powder is of a size of 600 orders.
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| CN201410184005.4A CN104004448B (en) | 2014-05-04 | 2014-05-04 | A kind of one pack system cathode electrophoresis dope for vehicle paint base |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104312246A (en) * | 2014-09-30 | 2015-01-28 | 苏州长盛机电有限公司 | Metallic cathode electrophoretic paint and preparation method thereof |
| CN106010239A (en) * | 2016-06-30 | 2016-10-12 | 太仓市金新涂料有限公司 | Environment-friendly corrosion resistant primer and preparation method thereof |
| CN106939152A (en) * | 2017-04-20 | 2017-07-11 | 成都龙之泉科技股份有限公司 | A kind of preparation method of flame retardant type heatproof corrosion resistant adhesive |
| CN107987668A (en) * | 2017-12-05 | 2018-05-04 | 广东科德环保科技股份有限公司 | A kind of scratch resistance Wuxi environment protection type cathode electrophoresis coating and preparation method thereof |
| CN109023485A (en) * | 2018-08-23 | 2018-12-18 | 深圳和而泰智能控制股份有限公司 | A kind of surface treatment method of aluminum alloy die casting |
| CN110105845A (en) * | 2019-05-27 | 2019-08-09 | 枣阳市旺前电泳涂料有限公司 | A kind of cathode epoxy electrophoretic paint and its production method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5667894A (en) * | 1996-06-05 | 1997-09-16 | E. I. Du Pont De Nemours And Company | Cathodic electrocoating compositions containing methane sulfonic acid as a neutralizing agent |
| CN1238450C (en) * | 2003-04-29 | 2006-01-25 | 华南理工大学 | Organic silicon modified cathode electrophoresis epoxy coating and process for preparing same |
| CN101402820B (en) * | 2008-09-25 | 2011-04-06 | 江泽平 | Single-component 175 DEG C drying cationic watersoluble epoxy-polyurethane corrosion protection paint base system |
| CN103319691B (en) * | 2013-06-24 | 2015-07-15 | 浩力森涂料（上海）有限公司 | Method for preparing organic silicon modified epoxy electrophoretic coating emulsion |
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2014
- 2014-05-04 CN CN201410184005.4A patent/CN104004448B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104312246A (en) * | 2014-09-30 | 2015-01-28 | 苏州长盛机电有限公司 | Metallic cathode electrophoretic paint and preparation method thereof |
| CN106010239A (en) * | 2016-06-30 | 2016-10-12 | 太仓市金新涂料有限公司 | Environment-friendly corrosion resistant primer and preparation method thereof |
| CN106939152A (en) * | 2017-04-20 | 2017-07-11 | 成都龙之泉科技股份有限公司 | A kind of preparation method of flame retardant type heatproof corrosion resistant adhesive |
| CN107987668A (en) * | 2017-12-05 | 2018-05-04 | 广东科德环保科技股份有限公司 | A kind of scratch resistance Wuxi environment protection type cathode electrophoresis coating and preparation method thereof |
| CN109023485A (en) * | 2018-08-23 | 2018-12-18 | 深圳和而泰智能控制股份有限公司 | A kind of surface treatment method of aluminum alloy die casting |
| CN110105845A (en) * | 2019-05-27 | 2019-08-09 | 枣阳市旺前电泳涂料有限公司 | A kind of cathode epoxy electrophoretic paint and its production method |
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| CN104004448B (en) | 2016-07-13 |
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