Application electroplating and surface treatment technology-Iota

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News > Dynamic industry > Application electroplating and surface treatment technology

Application electroplating and surface treatment technology

1. plating technology used in some dye-sensitized solar cells
2013 Cross-Strait Conference on Electronic plating Tsinghua University in Taiwan and Tatung University professor about the dynamics of the solar cell research two reports: "The combination of surface modification and nano-platinum catalyst and applied to the dye-sensitized solar cell electrode production process development "and" Pt-and TCO-free flexible counter electrodes for dye-sensitizedsolar cells "in creating a two-stage-dip method (two-step dip-coating) making nano island Pt counter electrode and a glass substrate for dye-sensitized success the electrode of the solar cell: The method is not only a very low amount of platinum and the process is simple, a more excellent catalytic performance and durability, a dye-sensitized solar cell electrode of the art, having one of the most competitive.
2. Application of supercritical fluid processing in the table
Supercritical fluid refers to the temperature and pressure exceeding the critical point of a particular state, in particular supercritical carbon dioxide fluid, is recognized as a green solvent, in which the superior properties of the metal coating can be obtained, there are also excellent in the pretreatment effect. When it is combined with the ionic liquid can be substantially widened its application range in terms of depositing the metal electrode. Yan Hao, associate professor of Shanghai University has done a lot of pioneering work in this regard.
3. ionic liquids electrodeposition
I.e., the ionic liquid was formed from the ion material is completely liquid at room temperature or near room temperature. From the point of view of both the advantages of electrodeposition baking temperature aqueous salt solution. May be plated directly in the aqueous solution can not separate the precipitated metals such as Al, Ti, W, Mo. Shanghai Jiaotong University Professor Guo Xingwu research group published --- "Choline Chloride - electrodeposition behavior of urea and ionic liquid Zn plating research on AZ91D magnesium alloy" that this system does not absorb water --- promising; Mao-zhong Harbin Institute of Technology research group also published a number of articles about the papers; Professor Zhou Yufu Shanghai University also carried out research work.
4. silane composite rare earth conversion coating technology, and double membrane technology breakthrough
Silane composite rare earth conversion coating technology is an environmentally friendly and has the potential to replace conventional chromate conversion coatings and phosphate transfer film technology. Its protective properties of good, but the stability of the silicone membrane to be further improved.
In 2013 Beijing HC surface treatment report at the meeting, Chemetall promote a Oxsilan technology company, has been in the automobile production process table completely replaced the traditional phosphating process high pollution, has 10 production lines in many countries around the world application. Can be called revolutionary breakthrough.
5. metallic copper surface conversion coating technology also has great breakthrough
Singapore Star Chemical Company in copper protective agent has also taken a lot of practical value results. It is understood that the aerospace industry partially silvered components, has been switched to copper plus protective agent, quality assurance on the basis of cost savings. Therefore, the prospects for an excellent surface conversion coating technology.
6. Electrodeposited nickel thin film nano-materials superhydrophobic
By Professor Li Ming Research Group Shanghai Jiaotong University School of Materials prepared by electrodeposition developed micro-nano hierarchical structure superhydrophobic nickel thin film, made great progress to see.
At different current densities and time electrodeposited nickel thin film under a scanning electron micrograph. (a) Current density 10A / dm2 deposited 30 seconds, (b) current density of 5A / dm2 deposited one minute, (c) current of 2A / dm2 deposited 5 minutes, (d) current of 2A / dm2 deposited 10 minutes.
A droplet on a smooth surface with the surface of the contact has the largest area; nanoneedle cone cone needle arrays and micro array structure, the contact area of the droplet with a solid surface of a corresponding reduction; micro-nano hierarchical structure having a surface, liquid and solid with minimal contact area.
A schematic view of four different wetting surface. (A) a smooth surface, the surface of the needle array of the cone (b) nm and (c) an array of tapered surface of the needle microns, (c) micro-nano hierarchical structure.
7. Vacuum plating and electroplating, organic coatings combine technology
Combines vacuum plating and electroplating is a new trend: Because there are certain technical and economic advantages, there are always new varieties appear, following several application examples:
1) Shielding fabric: polyester cloth vacuum sputtering nickel + copper plating.
2) zinc magnesium alloy coated steel: steel + plating Zn + Mg + high temperature vacuum deposition annealing can improve the corrosion resistance of 2 to 3 times, abroad test unit.
3) sputter plating type Layer FCCL 2-FCL.
4) aluminum wheels - organic layer + vacuum aluminum + organic protective layer.

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