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Titanium/rare earth hybrid nanomaterial and method for preparing same

A technology of nanomaterials and rare earth oxides, which is applied in the field of preparation of titanium/rare earth hybrid nanomaterials, can solve the problems of metal substrate corrosion, accelerated corrosion, and high price, and achieve excellent corrosion resistance

Inactive Publication Date: 2010-10-13
许德成
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Titanium and titanium alloys have broad-spectrum excellent corrosion resistance, wear resistance, and comprehensive performance, but their high price limits their large-scale application in the field of heavy anti-corrosion
In patents CN1306047 and CN1689731, a titanium nanopolymer and a titanium alloy nanomaterial are respectively proposed, which are added to heavy-duty anti-corrosion coatings as nano-additives to form a high-corrosion-resistant coating on the surface of metals and alloys, which is superior to traditional heavy-duty anti-corrosion coatings. The performance of coatings, and the price of common metal substrates with such high corrosion resistance coatings is much lower than that of metal titanium and titanium alloy substrates, but such coatings will have defects during coating and long-term use Or the corrosive medium finally comes into contact with the substrate. At this time, the titanium particles here will cause accelerated corrosion of the iron-based metal substrate in contact with it, forming localized corrosion of the metal substrate

Method used

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  • Titanium/rare earth hybrid nanomaterial and method for preparing same
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  • Titanium/rare earth hybrid nanomaterial and method for preparing same

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Experimental program
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Effect test

Embodiment 1

[0034] The first step: preparation of cerium oxide nanopowder:

[0035] At room temperature, add cerium chloride into ethanol and stir well until the concentration of cerium ions in the solution is 0.3M transparent solution; Hexamethylenetetramine with a ratio of 1, after mixing evenly, put it in a water bath at 20°C and stir for 0.5 hours, then dry the obtained sol at 50°C until a xerogel is obtained, calcinate at 400°C for 0.5 hours, and then grind gently Finally, loose cerium oxide nanopowder is obtained.

[0036] The second step: preparation of titanium / cerium hybrid nanomaterials:

[0037] The titanium powder of 60 weight parts and the cerium oxide nano-powder of 0.1 weight part are joined in the reactor, add the cyclohexanone of 40 weight parts again, and add the phenyl glycidyl ether of 0.05 weight part, then in 80ml / minn Flow argon for 30 minutes at a flow rate; after high-energy ball milling for 80 minutes, let it stand at 35°C, add 5 parts by weight of γ-glycidyltr...

Embodiment 2

[0039] The first step: preparing praseodymium oxide nanopowder:

[0040]At room temperature, praseodymium nitrate is added in methanol and fully stirred until the concentration of praseodymium ions in the solution is 0.8M transparent solution; Ethylene oxide, after mixing evenly, immediately put it in a water bath at 40°C and stir for 1 hour. Dry the obtained sol at 75°C until a xerogel is obtained. Calcinate at 550°C for 1 hour and grind gently to obtain loose praseodymium oxide. Nano powder.

[0041] The second step: preparation of titanium / praseodymium hybrid nanomaterials:

[0042] 75 parts by weight of titanium powder and 15 parts by weight of praseodymium oxide nanopowder are added to the reactor, then 150 parts by weight of butyl acetate are added, and 1 part by weight of nonylphenyl ether is added, then at 100ml / min Under the flow rate, feed nitrogen for 40 minutes; after high-energy ball milling for about 90 minutes, let it stand at 40°C, add 15 parts by weight of 4...

Embodiment 3

[0044] The first step: preparation of terbium oxide nanopowder:

[0045] At room temperature, add terbium sulfate into water and stir well until the concentration of rare earth ions in the solution is 1.2M and a transparent solution is formed; Methyl formate with a molar ratio of 12, mixed evenly, immediately placed in a water bath at 60°C and stirred for 2 hours, dried the obtained sol at 100°C until a xerogel was obtained, calcined at 700°C for 2 hours, and then gently ground to obtain Loose terbium oxide nanopowder.

[0046] The second step: preparation of titanium / terbium hybrid nanomaterials:

[0047] 95 parts by weight of titanium powder and terbium oxide nanopowder of 30 parts by weight are added to the reactor, then 250 parts by weight of n-butanol and 150 parts by weight of methyl ethyl ketone are added, and 2 parts by weight of Span 80 are added, and then At a flow rate of 120ml / min, flow argon for 20 minutes, carbon dioxide for 30 minutes, stand still at 45°C afte...

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Abstract

The invention discloses a titanium / rare earth hybrid nanomaterial and a method for preparing the same. The method comprises the following steps of: preparing rare earth oxide nanopowder from rare earth inorganic salt, a solvent, an organic gel forming agent and a surfactant; placing titanium powder in a hybridization reactor; sequentially adding a dispersing agent and a protective agent into the reactor; introducing a protective gas into the reactor; performing high-energy ball milling on the mixture; adding a hybridization reactant into the mixture to produce black nanopaste; volatilizing the organic matter from the nanopaste in an inert atmosphere; and drying the nanopaste under vacuum to obtain the black titanium / rare earth hybrid nanomaterial. The titanium / rare earth hybrid nanomaterial comprises a ternary system of the titanium, the rare earth oxide and the organic matter, wherein the titanium and the rare earth oxide are combined with the organic matter by chemical bonds to form a hybrid system. The material is well compatible with high molecules, is easy to prepare the titanium / rare earth organic matter hybrid functional nanocoating and has the characteristics of integrated network structure, high compactness, high corrosion resistance, high wear resistance and high comprehensive performance. The hybrid nanomaterial also contains the elements of titanium and rare earth and has attractive application prospect in corrosion resistance and various industrial fields when serving as a nanoadditive.

Description

Technical field: [0001] The invention relates to a method for preparing a titanium / rare earth hybrid nano material. The nano material belongs to novel organic matter and macromolecular nano materials, and belongs to the technical field of new materials for processing rare metals and rare earth elements. Background technique: [0002] Rare metal titanium, titanium alloys and rare earth materials are widely used in aerospace, energy, electronics, chemical and other industrial fields. Rare earth elements are known as the magician of high-tech materials. They are widely used in various fields of industry and national defense and military industries. Their functions in the field of anti-corrosion have been confirmed ("Shanghai Nonferrous Metals", Vol. -18 pages). Titanium and titanium alloys have broad-spectrum excellent corrosion resistance, wear resistance, and comprehensive performance, but their high price limits their large-scale application in the field of heavy anticorros...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B82B1/00B82B3/00C09D5/08
Inventor 许德成崔洪涛杨力川鞠洪阳
Owner 许德成