CN106400089A - Corrosion-resistant scaffolding composite electroplate liquid - Google Patents

Abstract

The invention discloses corrosion-resistant scaffolding composite electroplate liquid. The corrosion-resistant scaffolding composite electroplate liquid comprises, by weight, 6.8-9 parts of aniline, 0.1-0.2 part of ammonium persulfate, 50-60 parts of boric acid, 220-250 parts of nickel sulfate, 40-50 parts of nickel chloride, 0.2-0.3 part of lauryl sodium sulfate, 0.6-0.8 part of sodium citrate, 50-60 parts of teflon emulsion, 3-4 parts of a cationic surface active agent FC134, 1.5-3 parts of lanthanum oxide, 20-30 parts of crylic acid, 0.1-0.3 part of cetyl trimethyl ammonium bromide, 0.1-0.2 part of a silane coupling agent kh550, a proper amount of ethyl alcohol and a proper amount of deionized water. The electroplate liquid prepared through the method is simple in technology and short in consumed time, a good coating can be formed on the surface of a plated piece, and binding force is good. Moreover, the abrasive resistance and corrosion resistance are greatly improved, and the corrosion-resistant scaffolding composite electroplate liquid is worthy of popularization.

Description

A kind of corrosion resistant scaffold composite plating solution

Technical field

The present invention relates to electroplate liquid technical field, more particularly, to a kind of corrosion resistant scaffold composite plating solution.

Background technology

Plating, also known as metal electrodeposition technology, is to contain workpiece immersion in the solution being intended to deposited metal salt, and to workpiece Apply negative electrical charge, deposit the process of a layer of compact metal or alloy-layer with workpiece in surface of the work.That electroplates is basic Principle is to make the metal ion in solution that reduction reaction to occur on solution and plating piece interface by various electric field actions, generates gold Belong to atom and be deposited on metal surface formation coating.Composite deposite is by by insoluble solid particle is added to plating solution In, so that matrix metal and solid particle is co-deposited, form a kind of process for modifying surface of composite deposite.Nickel coating because It has excellent corrosion resistance, wearability and thickness of coating uniform the features such as, obtain at aspects such as aviation, automobile, electronics, chemical industry Apply to extensive.However, nickel coating coefficient of friction is larger.And polytetrafluoroethylene (PTFE) is to be polymerized by tetrafluoroethylene monomer, performance Stable, in addition to there is splendid resistance to chemical corrosion, also there is heat-resisting, cold resistance well, and very little friction Coefficient.By adding polytetrafluoroethylgranule granule in electroplate liquid, polytetrafluoroethylgranule granule is made to be distributed to along with the electro-deposition of nickel In nickel coating, the composite deposite preparing has significant antifriction effect.

《NI-PTFE composite plating process is studied》In one literary composition, author proposes by adding polytetrafluoroethylene (PTFE) breast in electroplate liquid Liquid and FC134 cationic surfactant, are successfully prepared Ni/PTFE composite deposite, and test shows that coating surface is uniform, flat Whole, in terms of tribological property, the coefficient of friction of composite deposite is 0.218, is only the 34% about of nickel coating, but due to PTFE matter is soft, after entering in coating, so that composite deposite is reduced compared with nickel coating hardness, wear extent increased simultaneously.So In some fields, this composite deposite can not meet demand.Rare earth element can significantly improve solia particle in functional composite material Content, hardness, the performance such as wearability and high temperature oxidation resistance, a series of in chromium plating, thermo-chemical treatment, conversion film etc. at present It is applied in process for treating surface.So the present invention improves the property such as hardness and the wearability of composite deposite by adding rare earth element Can, expand application.

Content of the invention

The object of the invention is exactly the defect in order to make up prior art, provides a kind of corrosion resistant scaffold composite plating Liquid.

The present invention is achieved by the following technical solutions：

A kind of corrosion resistant scaffold composite plating solution, is made up of the raw material of following weight portion：Aniline 6.8-9, persulfuric acid Ammonium 0.1-0.2, boric acid 50-60, nickel sulfate 220-250, nickel chloride 40-50, lauryl sodium sulfate 0.2-0.3, sodium citrate 0.6-0.8, ptfe emulsion 50-60, cationic surfactant FC1343-4, lanthana 1.5-3, acrylic acid 20-30, Trimethyl cetyl ammonium bromide 0.1-0.3, silane coupler kh5500.1-0.2, appropriate amount of ethanol, appropriate deionized water.

A kind of described corrosion resistant scaffold composite plating solution, is made up of following concrete steps：

（1）The deionized water dissolving of acrylic acid and trimethyl cetyl ammonium bromide mixing total amount 5-6 times amount is stirred into molten Liquid, aluminum oxide and lanthana mixing and stirring are placed in mixed solution, filter, then in 100 DEG C of drying boxes after stirring 1h In 4-6h is dried, cooling, after being washed with deionized be dried, surface spray 0.2% silane coupler kh550, drying and crushing mistake 1200-1300 mesh sieve is standby；

（2）By DBSA, water, aniline and n-butanol according to mol ratio 1.5-2：10-14：1.0-1.4：0.8-1.2 Then and step ratio is added in flask, is stirred vigorously and obtains transparent colourless emulsion,（1）The product mix and blend of preparation is equal Even, the solution of 2mol/L is made in the dissolving of ammonium persulfate deionized water, is then slowly dropped in flask, after completion of dropping React 5-7h under room temperature, add excessive ethanol and be slowly stirred 7-10min, filter, product deionized water, ethanol are repeatedly clear Wash, be subsequently placed in and 24h be dried at 60 DEG C in vacuum drying chamber；

（3）Boric acid is added in 60 DEG C of deionized water, it is standby that stirring makes it dissolve, adds sulphur when temperature of electroplating solution is 50 DEG C Sour nickel, nickel chloride and lauryl sodium sulfate, uniformly standby using magnetic stirrer, another container adds polytetrafluoro Vac emulsion and cationic surfactant FC134, are stirring evenly and then adding into step（2）The product of preparation and its surplus materials, Ultrasonic agitation is uniformly rear standby；

（4）By step（3）The standby product of preparation is with 800r/min mix and blend 20-30min, simultaneously auxiliary in 80kHz ultrasonic wave It is transferred in electrolytic cell after helping concussion 30min, standing removes the particle of particle diameter >=5 μm, you can obtain electroplate liquid.

It is an advantage of the invention that：The present invention improves nickel/polytetrafluoroethyl-ne using interpolation ptfe emulsion in electroplate liquid The anti-attrition of alkene composite deposite and lubricity, improve the performance of single nickel coating, in order to improve composite deposite hardness and wear-resisting The not high problem of performance, using nano-particle reinforcement coating, and in electroplate liquid, easily reunion adheres to negative electrode table because of nano particle Face makes the problem that surface roughness increases, and carries out coating modification using polyaniline to particle, improves and easily reunites and to the moon between particulate The tendency that pole springs up, and improve the performances such as wearability, hardness and the high temperature oxidation resistance of coating, using modifying agent to oxidation Aluminium and lanthana modification, improve its dispersiveness and compatibility, electroplating effect is good in electroplate liquid, can play good antioxygen The performance of the aspects such as change, wear-resisting, fire resisting, the plating solution of present invention preparation, process is simple, take short, can be formed on plating piece surface Good coating, adhesion is good, and greatly improves wearability and corrosion resistance, is worthy to be popularized.

Specific embodiment

A kind of corrosion resistant scaffold composite plating solution, by following weight portion（Kilogram）Raw material make：Aniline 6.8th, ammonium persulfate 0.1, boric acid 50, nickel sulfate 220, nickel chloride 40, lauryl sodium sulfate 0.2, sodium citrate 0.6, poly- four PVF emulsion 50, cationic surfactant FC1343, lanthana 1.5, acrylic acid 20, trimethyl cetyl ammonium bromide 0.1st, silane coupler kh5500.1, appropriate amount of ethanol, appropriate deionized water.

A kind of described corrosion resistant scaffold composite plating solution, is made up of following concrete steps：

（1）The deionized water dissolving of acrylic acid and trimethyl cetyl ammonium bromide mixing total amount 5 times amount is stirred into solution, Aluminum oxide and lanthana mixing and stirring are placed in mixed solution, filter after stirring 1h, then dry in 100 DEG C of drying boxes Dry 4h, cooling, it is dried after being washed with deionized, 0.2% silane coupler kh550 is sprayed on surface, drying and crushing crosses 1200 mesh sieves Standby；

（2）By DBSA, water, aniline and n-butanol according to mol ratio 1.5：10：1.0：0.8 ratio is added to flask In, then and step it is stirred vigorously and obtains transparent colourless emulsion,（1）The product mixing and stirring of preparation, by ammonium persulfate The solution of 2mol/L is made in deionized water dissolving, is then slowly dropped in flask, reacts 5h at room temperature after completion of dropping, Add excessive ethanol and be slowly stirred 7min, filter, product deionized water, ethanol clean repeatedly, be subsequently placed in vacuum and do 24h is dried at 60 DEG C in dry case；

（3）Boric acid is added in 60 DEG C of deionized water, it is standby that stirring makes it dissolve, adds sulphur when temperature of electroplating solution is 50 DEG C Sour nickel, nickel chloride and lauryl sodium sulfate, uniformly standby using magnetic stirrer, another container adds polytetrafluoro Vac emulsion and cationic surfactant FC134, are stirring evenly and then adding into step（2）The product of preparation and its surplus materials, Ultrasonic agitation is uniformly rear standby；

（4）By step（3）The standby product of preparation, with 800r/min mix and blend 20min, shakes in 80kHz ultrasonic assistant simultaneously It is transferred to after swinging 30min in electrolytic cell, standing removes the particle of particle diameter >=5 μm, you can obtain electroplate liquid.

Plating piece is carried out plating previous series of processes and enters electroplating bath, nickel anode plates front surface activation process, afterwards according to preparation Electroplate liquid carry out electroplating processes, bath temperature be 45 DEG C, current density be 9A/dm2, performance test, result are carried out to coating As follows：

Outward appearance：Smooth even, coefficient of friction：0.24, wear extent（500g、200r/min,mm3）：2.48 × 10-2, porosity （Individual/cm2）：0.8, adhesion：Do not peel off, salt fog（120 hours）：No significant change.

Claims (2)

1. a kind of corrosion resistant scaffold composite plating solution is it is characterised in that be made up of the raw material of following weight portion：Aniline 6.8-9, ammonium persulfate 0.1-0.2, boric acid 50-60, nickel sulfate 220-250, nickel chloride 40-50, lauryl sodium sulfate 0.2- 0.3rd, sodium citrate 0.6-0.8, ptfe emulsion 50-60, cationic surfactant FC1343-4, lanthana 1.5-3, Acrylic acid 20-30, trimethyl cetyl ammonium bromide 0.1-0.3, silane coupler kh5500.1-0.2, appropriate amount of ethanol, go from Sub- appropriate amount of water.

2. according to claim 1 a kind of corrosion resistant scaffold composite plating solution it is characterised in that by following concrete steps Preparation is made：

（1）The deionized water dissolving of acrylic acid and trimethyl cetyl ammonium bromide mixing total amount 5-6 times amount is stirred into molten Liquid, aluminum oxide and lanthana mixing and stirring are placed in mixed solution, filter, then in 100 DEG C of drying boxes after stirring 1h In 4-6h is dried, cooling, after being washed with deionized be dried, surface spray 0.2% silane coupler kh550, drying and crushing mistake 1200-1300 mesh sieve is standby；

（2）By DBSA, water, aniline and n-butanol according to mol ratio 1.5-2：10-14：1.0-1.4：0.8-1.2 Then and step ratio is added in flask, is stirred vigorously and obtains transparent colourless emulsion,（1）The product mix and blend of preparation is equal Even, the solution of 2mol/L is made in the dissolving of ammonium persulfate deionized water, is then slowly dropped in flask, after completion of dropping React 5-7h under room temperature, add excessive ethanol and be slowly stirred 7-10min, filter, product deionized water, ethanol are repeatedly clear Wash, be subsequently placed in and 24h be dried at 60 DEG C in vacuum drying chamber；

（3）Boric acid is added in 60 DEG C of deionized water, it is standby that stirring makes it dissolve, adds sulphur when temperature of electroplating solution is 50 DEG C Sour nickel, nickel chloride and lauryl sodium sulfate, uniformly standby using magnetic stirrer, another container adds polytetrafluoro Vac emulsion and cationic surfactant FC134, are stirring evenly and then adding into step（2）The product of preparation and its surplus materials, Ultrasonic agitation is uniformly rear standby；

（4）By step（3）The standby product of preparation is with 800r/min mix and blend 20-30min, simultaneously auxiliary in 80kHz ultrasonic wave It is transferred in electrolytic cell after helping concussion 30min, standing removes the particle of particle diameter >=5 μm, you can obtain electroplate liquid.