Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for preparing phosphoryl silane-carbon nano tube composite thin film on surface of titanium alloy

A technology of carbon nanotube compounding and phosphosilane, which is applied in the direction of chemical instruments and methods, metal layered products, layered products, etc., can solve the problems of carbon nanotube waste re-agglomeration and difficult suspension, and achieve the improvement of tribology Performance, low coefficient of friction, and high efficiency

Inactive Publication Date: 2014-11-12
SHANGHAI JIAOTONG UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this prior art does not relate to the process of generating carbon nanotubes on the surface of titanium alloys; and the step of filtering the carbon nanotube solution in this method is likely to cause waste and re-agglomeration of carbon nanotubes, and it is difficult to obtain stable carbon nanotubes in subsequent steps. suspension

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing phosphoryl silane-carbon nano tube composite thin film on surface of titanium alloy
  • Method for preparing phosphoryl silane-carbon nano tube composite thin film on surface of titanium alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] 1. Hydroxylation of the surface of the titanium alloy sheet

[0042] First, put the polished and cleaned Ti6Al4V titanium alloy sheet in the air for at least 3 hours to form a complete oxide film on the surface. Then, immerse the titanium alloy sheet in 0.5 mol / L potassium hydroxide aqueous solution for 60 minutes to make the surface of the titanium alloy sheet hydroxylated. The treated titanium alloy sheet was cleaned with absolute ethanol and blown dry with dry nitrogen.

[0043] 2. Formation of silane self-assembled film on the surface of titanium alloy sheet

[0044] First, an aminosilane solution was prepared with absolute ethanol, deionized water, and γ-aminopropyltriethoxysilane at a volume ratio of 96:2:2.

[0045] Secondly, wash the treated titanium alloy sheet with distilled water, and immerse it in the fresh aminosilane solution for 3 hours; after taking it out, wash it repeatedly with absolute ethanol, and dry it.

[0046] 3. Formation of phosphate-based ...

Embodiment 2

[0058] 1. Hydroxylation of the surface of the titanium alloy sheet

[0059] First, put the polished and cleaned Ti12.5Zr2.5Nb2.5Ta (TZNT) titanium alloy sheet in the air for 8 hours to form a complete oxide film on the surface, and then put the titanium alloy sheet into 1mol / L potassium hydroxide Soak in the aqueous solution for 20min to make the surface of the titanium alloy sheet hydroxylated. The treated titanium alloy sheet was cleaned with absolute ethanol and blown dry with dry nitrogen.

[0060] 2. Formation of silane self-assembled film on the surface of titanium alloy sheet

[0061] First, absolute ethanol, deionized water, and mercaptopropylmethyldimethoxysilane were prepared in a volume ratio of 96:2:2 to prepare a mercaptosilane solution.

[0062] Next, wash the treated titanium alloy sheet with distilled water, and immerse it in the above-mentioned fresh aminosilane solution for 3 hours; after taking it out, wash it repeatedly with absolute ethanol, and dry it. ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
friction coefficientaaaaaaaaaa
friction coefficientaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing a phosphoryl silane-carbon nano tube composite thin film on the surface of a titanium alloy substrate. The method comprises the following steps of: firstly hydroxylating a washed titanium alloy substrate in potassium hydroxide aqueous solution; secondly, preparing a silane thin film on the surface of the hydroxylated titanium alloy by using a self-assembly method; and finally putting the substrate into a rare earth modified carbon nano tube suspension so as to prepare a rare earth modified carbon nano tube thin film on the surface of the substrate. The method is simple, low in cost is free of environment pollution. The prepared phosphoryl silane-carbon nano tube composite thin film has the advantages of firm interface bonding, low friction coefficient and good wear-resisting property.

Description

technical field [0001] The invention relates to a preparation method for forming a silane self-assembled composite film on the surface of a titanium alloy, in particular to a preparation method for forming a phosphate-based silane-carbon nanotube double-layer film on the surface of a titanium alloy. Background technique [0002] Titanium is an important structural metal developed in the 1950s. Titanium alloys are widely used in various fields due to their high strength, good corrosion resistance, and high heat resistance. For example, because the density of titanium alloy is lower than that of steel material, but its specific strength is higher than that of steel material; therefore, it is widely used in various occasions that require light weight and high strength, such as aircraft engine components, human bones, etc. Titanium alloys are also widely used in medicine because of their good corrosion resistance and biocompatibility. Because the elastic modulus of medical tita...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B32B9/04B32B15/00
Inventor 程先华方磊雷子恒王传英疏达
Owner SHANGHAI JIAOTONG UNIV