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Transition-layer-introduced modified titanium substrate conducting coating and preparation method thereof

A technology of conductive coating and transition layer, which is applied in the field of modified titanium substrate conductive coating and its preparation, can solve the problem of high cost, achieve the effects of low cost, easy availability of raw materials, and improved bonding ability

Active Publication Date: 2015-07-01
FUZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this technology mainly uses an active oxide layer mainly containing rare precious metal Ru, which still has the defect of high cost, and is obviously different from the subsequent silver plating layer in structure.

Method used

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  • Transition-layer-introduced modified titanium substrate conducting coating and preparation method thereof

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preparation example Construction

[0030] 4） Preparation of silver coating:

[0031] The silver coating adopts a non-aqueous solution deposition method, and the AgNO 3 Dissolved in ethanol to obtain a saturated Ag-containing ethanol solution; then the silver-containing ethanol solution is dissolved in 15% 2-hydroxyl-5-second-octyl-3-3 chlorodiphenylcopper oxime and a volume ratio of In diesel oil containing 15% diethylhexyl phosphonate, obtain an ethanol solution with a solute concentration of 2 mol / L, labeled as C solution; dissolve hydroquinone in acetone to obtain a solution with a concentration of 100 g / L , labeled as D solution. Mix solution C and solution D at a volume ratio of 6:1 to form a silver plating solution. The modified titanium base material with the transition layer is dip-plated in the silver-plating solution, and deposited for different times to obtain nano-silver-plated titanium base material products with different thicknesses. Tests by using the adhesive method and the bending method s...

Embodiment 1

[0034] Prepare the industrial pure titanium substrate TA2, heat and clean the pure titanium substrate in 100g / L washing powder, wash it with water, etch it in a 10% oxalic acid solution by weight in a boiling state for 20 minutes, wash it with water, and dry it. Then put it into a box furnace for oxidation at 500°C for 30 minutes.

[0035] Press AgNO 3 :Ti(OBu) 4 : citric acid (molar ratio) is 1:1:2 and weighs each substance. Firstly, citric acid was dissolved in ethanol solution with a concentration of 1.0 mol / L to become a citric acid ethanol solution; then AgNO 3 and Ti(OBu) 4 It is also dissolved in ethanol, and ammonia water is added dropwise at 60°C until it is completely dissolved, and the two are mixed under strong stirring to prepare an Ag-Ti ethanol solution. At 60° C., the ethanol solution of citric acid was added dropwise to the ethanol solution of Ag-Ti while stirring, and the solution was kept in a transparent state, so as to form the Ag-Ti sol solution. Contr...

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Abstract

The invention discloses a modified titanium substrate conductive coating layer introduced with a transition layer and a preparation method thereof. An Ag-TiO2 transition layer is introduced into the titanium substrate modified by active oxides and the silver coating layer. The invention can obtain a fine and dense silver plating layer with good bonding state. The obtained silver-plated materials and devices can be applied to electronics, electric power and instrument industries. The preparation method is simple, the operability is strong, the raw material is easy to obtain, and the cost is low.

Description

technical field [0001] The invention belongs to the field of conductive material preparation, and in particular relates to a modified titanium substrate conductive coating introduced with a transition layer and a preparation method thereof. Background technique [0002] After the advent of noble metal oxides in 1967, coating materials with high catalytic performance were provided for the chemical industry. The earliest successful formulation of a noble metal oxide electrode is the Ru-Ti oxide-coated titanium anode. In order to obtain highly active and highly corrosion-resistant electrode materials on titanium substrates, this research group proposed "Titanium Anodes for Electrochemical Industry with Oxide Seed Layers", which has recently obtained a Chinese invention patent (patent number: 200610135245.0) . This titanium anode with a fine oxide seed layer can further improve the electrocatalytic performance of the surface layer of the active material by modifying the substr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/18C23C18/42
Inventor 魏宗平唐电王欣翁卫祥刘雪华陈永毅魏喆良
Owner FUZHOU UNIV