CN108677173A - A kind of Ni-Mo-P/MoS of ultrasonic wave auxiliary2Composite electroless deposit layer and preparation method thereof - Google Patents

A kind of Ni-Mo-P/MoS of ultrasonic wave auxiliary2Composite electroless deposit layer and preparation method thereof Download PDF

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Publication number
CN108677173A
CN108677173A CN201810534624.XA CN201810534624A CN108677173A CN 108677173 A CN108677173 A CN 108677173A CN 201810534624 A CN201810534624 A CN 201810534624A CN 108677173 A CN108677173 A CN 108677173A
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mos
preparation
electroless deposit
composite
sodium
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蒋继波
陈浩天
朱丽莹
孙瑶馨
张小杰
韩生
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Shanghai Institute of Technology
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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/48—Coating with alloys
    • C23C18/50—Coating with alloys with alloys based on iron, cobalt or nickel
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/1601—Process or apparatus
    • C23C18/1633—Process of electroless plating
    • C23C18/1635—Composition of the substrate
    • C23C18/1637—Composition of the substrate metallic substrate
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/1601—Process or apparatus
    • C23C18/1633—Process of electroless plating
    • C23C18/1655—Process features
    • C23C18/1664—Process features with additional means during the plating process
    • C23C18/1666—Ultrasonics

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  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemically Coating (AREA)

Abstract

The invention discloses a kind of Ni Mo P/MoS of ultrasonic wave auxiliary2Composite electroless deposit layer and preparation method thereof.The present invention first pre-processes surface of low-carbon steel, and pretreated mild steel is then put into Ni Mo P/MoS2In Composite electroless deposit liquid, ultrasonic plating, finally takes out sample and drying, obtains Ni Mo P/MoS at a temperature of 83~90 DEG C2Composite electroless deposit layer.The present invention is based on chemical platings and ultrasonic technique, and nano composite sedimentary layer is prepared in surface of low-carbon steel.The composite sedimentary layer prepared by this method can effectively improve the performances such as corrosion resistance, case hardness, the wearability of mild steel.

Description

A kind of Ni-Mo-P/MoS of ultrasonic wave auxiliary2Composite electroless deposit layer and its preparation Method
Technical field
The invention belongs to the Ni-Mo-P/MoS that technical field of inorganic material more particularly to a kind of ultrasonic wave assist2Chemistry is multiple Close sedimentary and preparation method thereof.
Background technology
Chemical plating, if generally referring to the chemical reaction in metal salt and reducing agent are with existing solution by self-catalysis Metal surface deposited the new film technique of the coat of metal.Chemical plating is easy to operate, technique is simple due to not needing additional power source List, coating is uniform, porosity is low and appearance is good, and can be deposited on a variety of nonmetal basal bodies such as plastics, ceramics, glass, And there is excellent covering property, high adhesive force, excellent anticorrosive and wear-resisting property and excellent functional performance, chemical plating Technology has extremely extensive purposes, in electronics, machinery, automobile, weaving, petrochemical industry, printing, aerospace and military work Industry etc. forms actual productivity.Plating is that the metal ion in electroplate liquid is reduced into gold on sample using extrinsic current The process of category；And chemical plating is to be not added with extrinsic current, is carried out by control redox reaction under the catalytic action of substrate surface Metal deposition process.Chemical plating provides metal ion and restores required electronics by reducing agent offer.
Chemical nickel plating, which is developed so far, have been approximately passed through 50 years, plating solution be usually by nickel salt, reducing agent, complexing agent, stabilizer, Accelerating agent, buffer, brightener, wetting agent etc..Compared with electroplating process, chemical nickel plating is initially as instead of Hard Chromium Coating And industrial applications, develop to the functional coatings such as corrosion resistance, wearability, anti electromagnetic wave shielding, compact disk later and Obtain extensive use.Chemical nickel plating coating is with the expansion of its application surface, and it still needs further improvement for its certain performances.Pass through The method of alloying can adjust and change the microstructure of material, so as to improve its physicochemical characteristics.In order to improve chemical plating The comprehensive performance of nickel layer, researchers start to study Composite Electroless Nickel.Chemical plating ternary nickel-base alloy, than chemistry Plating binary nickel-base alloy has better or more specifically performance, shows more wide application space.The conjunction of chemical nickel plating Aurification, ternary research have obtained gratifying achievement, extend the application range of chemical plating to a certain extent.It can be with The member that chemical Ni-P plating is co-deposited is known as Rc, V, W, Mo, Cu, Sn, Fe etc..The alloy layer of above-mentioned system laboratory at Work(obtains.Ni-Mo-P alloy layers have many good qualities：Coating is uniform, and structure is compacted fine and closely woven, good corrosion resistance；Hardness higher, tool There is good wearability；It is easy to operate, it is easy to grasp, slot allocation and adjustment are very easy；Plating solution service life is long；Pollute low, nickel Utilization rate height etc..
Molybdenum disulfide (MoS2) be used as a kind of metal sulfide, have with layer structure as graphite-like, between layers It is maintained by relatively weak Van der Waals force, possesses the characteristics such as good light, electricity, lubrication, catalysis.MoS2Material in lubricant, urge The application in the fields such as agent and transistor has been widely recognized.The MoS of nanoscale2Including nano thin-layer, nano-particle, Nanostructure, nanotube and the molybendum disulfide complexes of fowler ethylenic.Work as MoS2Scale it is small arrive Nano grade, it is corresponding Larger change will occur for band structure and photophysical property.Nano molybdenum disulfide material has both porous big than table product, big ratio Surface is easy to be combined with other atoms along with the generation of many dangling bonds because of the unsaturated property that it has, therefore shows Go out very strong chemism.
However there is presently no the Ni-Mo-P/MoS assisted about ultrasonic wave2The phase of Composite electroless deposit layer preparation method Close research.Now refer to it is more be Ni-Mo-P research, but its be not related to ultrasound and composite Nano molybdenum disulfide Particle.
Invention content
For above-mentioned technical problem in the prior art, the purpose of the present invention is to provide a kind of Ni- of ultrasonic wave auxiliary Mo-P/MoS2Composite electroless deposit layer and preparation method thereof.The present invention is prepared using ultrasonic wave householder method, is obtained Ni-Mo-P/MoS2Composite electroless deposit layer solves corrosion-resistant surface of low-carbon steel in the prior art, crocking resistance and hardness Not high technical problem.
Technical scheme of the present invention is specifically described as follows.
The present invention provides a kind of Ni-Mo-P/MoS of ultrasonic wave auxiliary2The preparation method of Composite electroless deposit layer is specific to walk It is rapid as follows：Surface of low-carbon steel is pre-processed first, pretreated mild steel is then put into Ni-Mo-P/MoS2Chemistry In composite deposition liquid, ultrasonic plating 1-2h, finally takes out sample and drying, obtains Ni-Mo-P/ at a temperature of 83~90 DEG C MoS2Composite electroless deposit layer；Wherein：Ni-Mo-P/MoS2In Composite electroless deposit liquid, it includes forming as follows often to heave hydrops Component：20~60g nickel sulfate hexahydrates, 0.2~1g sodium molybdates, 20~45g sodium hypophosphites, 20~55g trisodium citrates, 5~20g Lactic acid, 0.02~0.1g lauryl sodium sulfate, 0.1~2g nano molybdenum disulfides.
In the present invention, the pretreatment of mild steel includes that surface successively is polished decontamination, in ultrasonic wave acetone cleaning and degreasing and Three steps are activated with chlorohydric acid pickling.
In the present invention, Ni-Mo-P/MoS is adjusted with sodium hydroxide solution2The pH value of Composite electroless deposit liquid 8~10 it Between.
In the present invention, the preparation method of nano molybdenum disulfide is as follows：Take 0.1~0.8g sodium molybdates and 0.5~1.2g thiocarbamides It is dissolved in 30~50ml deionized waters, at 180~220 DEG C after high pressure hydro-thermal 20-25h, is centrifuged 2-4 times in water and ethyl alcohol Afterwards, it is lyophilized to obtain the final product.
In the present invention, Ni-Mo-P/MoS2In Composite electroless deposit liquid, it includes the component formed as follows often to heave hydrops：20 ~40g nickel sulfate hexahydrates, 0.2~0.6g sodium molybdates, 25~35g sodium hypophosphites, 20~35g trisodium citrates, 5~15g lactic acid, 0.04~0.08g lauryl sodium sulfate, 0.1~0.3g nano molybdenum disulfides.
In the present invention, ultrasonic intensity is between 100~200W, and frequency is between 50~80KHz.
In the present invention, drying temperature is between 20~25 DEG C.
A kind of Ni-Mo-P/MoS that above-mentioned preparation method obtains also is provided in the present invention2Composite electroless deposit layer.
A kind of Ni-Mo-P/MoS of the present invention2Composite electroless deposit liquid adds in original Ni-Mo-P deposits liquid Nano molybdenum disulfide particle, therefore apply the Composite electroless deposit liquid in the plating of carbon steel work-piece surface, the Ni- being ultimately formed Mo-P/MoS2The wearability of Composite electroless deposit layer enhances.By molybdenum and nano molybdenum disulfide performance, carbon steel table is significantly improved The wearability of face layer, corrosion resistance and hardness.
In the present invention, in Ni-Mo-P/MoS2In prepared by Composite electroless deposit layer, passed in liquid medium by ultrasonic wave The cavitation effect and mechanical shearing effect that sowing time generates can effectively disperse nanometer in the nano combined depositing operation of chemistry Grain, crystal grain thinning improve coating crystal orientation, it is bright to increase coating to ensure that nano-composite plate has good structure property Degree improves hardness and corrosion resistance etc..
Compared to the prior art, Ni-Mo-P/MoS of the invention2Composite electroless deposit layer have it is stronger it is corrosion-resistant with it is resistance to Performance is ground, the corrosion resistance shown is got well than simple Ni-Mo-P alloy-layers.In addition, ultrasonic wave is introduced in preparation process, It has refined coating surface crystal grain and has improved the content and uniformity of nano molybdenum disulfide in coating.Therefore, it is ultimately formed Ni-Mo-P/MoS2Composite electroless deposit layer has excellent corrosion resistance, rub resistance and high rigidity.
Specific implementation mode
Technical scheme of the present invention is described in detail with reference to embodiment.
Embodiment 1
A kind of Ni-Mo-P/MoS2Composite electroless deposit liquid is calculated by every liter of solution, and composition and content are as follows：
By nickel sulfate hexahydrate, sodium molybdate, sodium hypophosphite, trisodium citrate, lactic acid, lauryl sodium sulfate sequentially adds To being dissolved in deionized water, sodium hydroxide is then added and adjusts pH value to 9.5 to get to Ni-Mo-P Composite electroless deposit liquid.
Embodiment 2
By the Composite electroless deposit liquid of 1 gained of embodiment applied to surface of low-carbon steel to form Ni-Mo-P chemical deposition layers, Specifically comprise the following steps：
(1) pretreatment of low-carbon steel workpiece surface removes on the surface of low-carbon steel workpiece through 3,5, No. 7 coated abrasive workings successively Then acetone degreasing 1 minute in the case where ultrasonic wave assists clearly is used in dirt, rinsed 10 seconds with deionized water；Then mass percent is used again The chlorohydric acid pickling 15s of concentration 10% is rinsed 10 seconds with deionized water.
(2) the pretreated low-carbon steel workpiece of step 1 is put into the Ni-Mo-P chemical sinking effusions prepared, by solution Temperature is controlled at 85 DEG C, and ultrasound intensity takes out in 150W, supersonic frequency after 60KHZ, 1h, after being washed with deionized water only, normal Temperature is lower to be dried up to get the sample A of Ni-Mo-P Composite electroless deposit layers is coated with to surface.Hardness test passes through HXD-1000 hardness Tester, load 10g loads 20s, which is tested 10 times, takes mean value.Electro-chemical test is by CHI760 electrochemical workstations with three electricity Electrode systems are in 3.5wt.% sodium chloride solutions, 25 DEG C of temperature.By test, the hardness of sample A only has 312HV, corrosion current Density (3.5%NaCl) is 1.258 × 10-5A/cm2。
Embodiment 3
A kind of Ni-Mo-P/MoS2Composite electroless deposit liquid is calculated by every liter of solution, and composition and content are as follows：
0.48g sodium molybdates and 0.76g thiocarbamides are dissolved in 40ml deionized waters, is then for 24 hours for high pressure hydro-thermal at 200 DEG C Freeze-drying obtains a nanometer MoS after being centrifuged 3 times in water and ethyl alcohol2Particle, grain size reach 800~900nm.
By nickel sulfate hexahydrate, sodium molybdate, sodium hypophosphite, trisodium citrate, lactic acid, lauryl sodium sulfate, two sulphur of nanometer Change molybdenum to be proportionally added into deionized water and dissolves, sodium hydroxide is then added and adjusts pH value to 9.5 to get to Ni-Mo-P/ MoS2Composite electroless deposit liquid.
Embodiment 4
The Composite electroless deposit liquid of 3 gained of embodiment is applied to surface of low-carbon steel to form Ni-Mo-P/MoS2Chemistry is multiple Sedimentary is closed, is specifically comprised the following steps：
(1) pretreatment of low-carbon steel workpiece surface removes on the surface of low-carbon steel workpiece through 3,5, No. 7 coated abrasive workings successively Then acetone degreasing 1 minute in the case where ultrasonic wave assists clearly is used in dirt, rinsed 10 seconds with deionized water；Then mass percent is used again The chlorohydric acid pickling 15s of concentration 10% is rinsed 10 seconds with deionized water.
(2) the pretreated low-carbon steel workpiece of step 1 is put into the Ni-Mo-P/MoS prepared2Composite electroless deposit liquid In, solution temperature is controlled at 85 DEG C, ultrasound intensity takes out in 200W, supersonic frequency after 60KHZ, 1.5h, uses deionized water After cleaning, dries up be coated with Ni-Mo-P/MoS to get to surface at normal temperatures2The sample B of Composite electroless deposit layer.Hardness test By HXD-1000 hardness-testing devices, load 10g loads 20s, which is tested 10 times, takes mean value.Electro-chemical test passes through CHI760 electrifications Work station is learned with three-electrode system in 3.5wt.% sodium chloride solutions, 25 DEG C of temperature.By test, the hardness of sample B reaches 856HV is arrived, corrosion electric current density (3.5%NaCl) is 7.774 × 10-6A/cm2。
Embodiment 5
A kind of Ni-Mo-P/MoS2Composite electroless deposit liquid is calculated by every liter of solution, and composition and content are as follows：
By nickel sulfate hexahydrate, sodium molybdate, sodium hypophosphite, trisodium citrate, lactic acid, two sulphur of lauryl sodium sulfate and nanometer Change molybdenum to be proportionally added into deionized water and dissolves, sodium hydroxide is then added and adjusts pH value to 9.5 to get to Ni-Mo-P/ MoS2Composite electroless deposit liquid.
Nano molybdenum disulfide is prepared with embodiment 3.
Embodiment 6
The Composite electroless deposit liquid of 5 gained of embodiment is applied to surface of low-carbon steel to form Ni-Mo-P/MoS2Chemistry is multiple Sedimentary is closed, is specifically comprised the following steps：
(1) pretreatment of low-carbon steel workpiece surface removes on the surface of low-carbon steel workpiece through 3,5, No. 7 coated abrasive workings successively Then acetone degreasing 1 minute in the case where ultrasonic wave assists clearly is used in dirt, rinsed 10 seconds with deionized water；Then mass percent is used again The chlorohydric acid pickling 15s of concentration 10% is rinsed 10 seconds with deionized water.
(2) the pretreated low-carbon steel workpiece of step 1 is put into the Ni-Mo-P/MoS prepared2Composite electroless deposit liquid In, solution temperature is controlled at 85 DEG C, ultrasound intensity takes out in 150W, supersonic frequency after 80KHZ, 1h, is washed with deionized water After net, dry up be coated with Ni-Mo-P/MoS to get to surface at normal temperatures2The sample C of Composite electroless deposit layer.Hardness test is logical HXD-1000 hardness-testing devices are crossed, load 10g loads 20s, which is tested 10 times, takes mean value.Electro-chemical test passes through CHI760 electrochemistry Work station uses three-electrode system in 3.5wt.% sodium chloride solutions, 25 DEG C of temperature.By test, the hardness of sample C reaches 878HV, corrosion electric current density (3.5%NaCl) are 6.558 × 10-6A/cm2, performance significantly improves.

Claims (8)

1. a kind of Ni-Mo-P/MoS of ultrasonic wave auxiliary2The preparation method of Composite electroless deposit layer, which is characterized in that specific steps It is as follows：Surface of low-carbon steel is pre-processed first, pretreated mild steel is then put into Ni-Mo-P/MoS2Chemistry is multiple It closes in deposition liquid, ultrasonic plating 1-2h, finally takes out sample and drying, obtain Ni-Mo-P/MoS at a temperature of 83~90 DEG C2 Composite electroless deposit layer；Wherein：Ni-Mo-P/MoS2In Composite electroless deposit liquid, it includes the group formed as follows often to heave hydrops Point：20~60g nickel sulfate hexahydrates, 0.2~1g sodium molybdates, 20~45g sodium hypophosphites, 20~55g trisodium citrates, 5~20g breasts Acid, 0.02~0.1g lauryl sodium sulfate, 0.1~2g nano molybdenum disulfides.
2. preparation method as described in claim 1, which is characterized in that the pretreatment of mild steel is gone including surface polishing successively Dirt acetone cleaning and degreasing and activates three steps in ultrasonic wave with chlorohydric acid pickling.
3. preparation method as described in claim 1, which is characterized in that adjust Ni-Mo-P/MoS with sodium hydroxide solution2Chemistry The pH value of composite deposition liquid is between 8~10.
4. preparation method as described in claim 1, which is characterized in that the preparation method of nano molybdenum disulfide is as follows：Take 0.1~ 0.8g sodium molybdates and 0.5~1.2g thiocarbamides are dissolved in 30~50ml deionized waters, the high pressure hydro-thermal 20-25h at 180~220 DEG C Afterwards, it after being centrifuged 2-4 times in water and ethyl alcohol, is lyophilized to obtain the final product.
5. preparation method as described in claim 1, which is characterized in that Ni-Mo-P/MoS2In Composite electroless deposit liquid, often heave Hydrops includes the component formed as follows：20~40g nickel sulfate hexahydrates, 0.2~0.6g sodium molybdates, 25~35g sodium hypophosphites, 20~ 35g trisodium citrates, 5~15g lactic acid, 0.04~0.08g lauryl sodium sulfate, 0.1~0.3g nano molybdenum disulfides.
6. preparation method as described in claim 1, which is characterized in that ultrasonic intensity is between 100~200W, and frequency is 50 Between~80KHz.
7. preparation method as described in claim 1, which is characterized in that drying temperature is between 20~25 DEG C.
8. the Ni-Mo-P/MoS that a kind of preparation method as described in one of claim 1-7 obtains2Composite electroless deposit layer.
CN201810534624.XA 2018-05-29 2018-05-29 A kind of Ni-Mo-P/MoS of ultrasonic wave auxiliary2Composite electroless deposit layer and preparation method thereof Pending CN108677173A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020046647A1 (en) * 2000-05-12 2002-04-25 Manabu Sugiura Compressors
CN101643897A (en) * 2009-05-25 2010-02-10 燕山大学 Ni-P amorphous/MoS2 composite membrane for preventing cold welding effect under high vacuum environment
CN102747346A (en) * 2012-07-28 2012-10-24 西安科技大学 Preparation method of self-lubricating coating of traveller for textile
CN107740074A (en) * 2017-10-26 2018-02-27 上海应用技术大学 Ce Ni Mo P/Go Composite electroless deposit layers that a kind of ultrasonic wave aids in double complexing agents and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020046647A1 (en) * 2000-05-12 2002-04-25 Manabu Sugiura Compressors
CN101643897A (en) * 2009-05-25 2010-02-10 燕山大学 Ni-P amorphous/MoS2 composite membrane for preventing cold welding effect under high vacuum environment
CN102747346A (en) * 2012-07-28 2012-10-24 西安科技大学 Preparation method of self-lubricating coating of traveller for textile
CN107740074A (en) * 2017-10-26 2018-02-27 上海应用技术大学 Ce Ni Mo P/Go Composite electroless deposit layers that a kind of ultrasonic wave aids in double complexing agents and preparation method thereof

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