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Titanium carbide/polyaniline composite material and preparation method thereof

A technology of composite materials and polyaniline, which is applied in the field of titanium carbide/polyaniline composite materials and its preparation, can solve problems such as damage, and achieve the effects of simple and safe operation, increased specific surface area, and large specific surface area

Active Publication Date: 2017-05-10
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional high temperature (above 150°C) hydrothermal modification of Ti 3 C 2 method to easily make Ti 3 C 2 Oxidation, destruction of Ti 3 C 2 binary layered structure

Method used

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  • Titanium carbide/polyaniline composite material and preparation method thereof
  • Titanium carbide/polyaniline composite material and preparation method thereof
  • Titanium carbide/polyaniline composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] 1) Refine powder

[0049] Refining ternary layered Ti with a purity greater than 97% by high-energy ball milling 3 AlC 2 Ceramic powder, ball milling conditions: the mass ratio of ball stone, mixture and ball milling medium (absolute ethanol) is 10:1:1, the ball milling speed is 400r / min, the high-energy ball milling time is 4h, and then the obtained solid-liquid mixture is Dry at 50℃ to obtain Ti with a particle size of about 8μm 3 AlC 2 Ceramic powder; see figure 1 , figure 1 The XRD pattern in the middle shows that the phase of the obtained powder is Ti 3 AlC 2 Crystal with very little impurity content.

[0050] 2) Two-dimensional layered nanomaterial MXene-Ti 3 C 2 Preparation

[0051] The Ti obtained in step 1) 3 AlC 2 The ceramic powder is immersed in HF acid solution, of which 5g Ti 3 AlC 2 The powder is immersed in 100mL of 40wt% HF acid solution with a mass concentration of 40wt% for 48h; magnetic stirring, the ternary layered Ti 3 AlC 2 After the powder is corroded, ...

Embodiment 2

[0058] 1) Refine powder

[0059] Refining ternary layered Ti with a purity greater than 97% by high-energy ball milling 3 AlC 2 Ceramic powder, ball milling conditions: the mass ratio of ball stone, mixture and ball milling medium (absolute ethanol) is 10:1:1, the ball milling speed is 400r / min, the high-energy ball milling time is 2h, and then the obtained solid-liquid mixture is Dry at 50℃ to obtain Ti with a particle size of about 56μm 3 AlC 2 Ceramic powder

[0060] 2) Two-dimensional layered nanomaterial MXene-Ti 3 C 2 Preparation

[0061] The Ti obtained in step 1) 3 AlC 2 The ceramic powder is immersed in HF acid solution, of which 2gTi 3 AlC 2 The powder is immersed in 50mL of a 45wt% HF acid solution with a mass concentration of 45% by weight for 12 hours; magnetic stirring is used for the ternary layered Ti 3 AlC 2 After the powder is corroded, it is washed with deionized water by centrifugation to a pH of 5-6, and the obtained solid sample is dried at room temperature to o...

Embodiment 3

[0065] 1) Same as Example 1 step 1);

[0066] 2) Two-dimensional layered nanomaterial MXene-Ti 3 C 2 Preparation

[0067] The Ti obtained in step 1) 3 AlC 2 The ceramic powder is immersed in HF acid solution, of which 2g Ti 3 AlC 2 The powder is immersed in 50mL of a 40wt% HF acid solution with a mass concentration of 40wt%, and reacts for 6h; magnetic stirring, the ternary layered Ti 3 AlC 2 After the powder is corroded, it is washed with deionized water by centrifugation to pH 6, and the obtained solid sample is dried at room temperature to obtain the two-dimensional layered nanomaterial MXene-Ti 3 C 2 ;

[0068] 3) Preparation of Ti by low temperature stirring method 3 C 2 / Polyaniline composite

[0069] (1) Put the MXene-Ti obtained in step 2) at room temperature 3 C 2 400mg was dispersed in 30mL of 1mol / L hydrochloric acid solution and placed in an ultrasonic reactor to sonicate for 1h to form dispersed Ti 3 C 2 Mixture; (2) Ti obtained from (1) 3 C 2 Add 0.2mL aniline to the mix...

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Abstract

The invention relates to a titanium carbide / polyaniline composite material and a preparation method thereof. The preparation method comprises the following steps: firstly, adding a two-dimensional layered nano material MXene-Ti3C2 into a hydrochloric acid solution, and uniformly dispersing to obtain a Ti3C2 mixed solution; then adding aniline into the Ti3C2 mixed solution, and uniformly dispersing to obtain a mixed solution, wherein the ratio of the aniline to the two-dimensional layered nano material MXene-Ti3C2 is (0.1 to 0.3)mL to (100 to 600)mg; at 0 to 5 DEG C, adding a catalyst into a mixed solution A drop by drop, carrying out stirring polymerization till the mixed solution is gradually changed from a transparent solution into a uniform black solution, and carrying out washing and drying to obtain the titanium carbide / polyaniline composite material. According to the preparation method, by low temperature stirring treatment at 0 to 5 DEG C, the PANI / Ti3C2 composite material is prepared, and the problem that Ti3C2 is easy to oxidize at high temperature is improved, and the composite material with a uniform load can be obtained.

Description

[0001] 【Technical Field】 [0002] The invention relates to the field of composite material preparation, in particular to a titanium carbide / polyaniline composite material and a preparation method thereof. [0003] 【Background technique】 [0004] Ternary layered ceramic material Ti 3 AlC 2 It belongs to the layered hexagonal crystal structure. In Ti 3 AlC 2 In the crystal structure, Ti and C atoms form Ti 6 The C octahedron is separated by the Al layer. The C atom is located in the center of the octahedron. The C and Ti atoms are bonded to form a strong covalent bond, while Ti-Ti, and Ti and Al are weakly bonded, similar to those between graphite Van der Waals force weakly bond. [0005] Ti 3 AlC 2 It has both the properties of metal and ceramics. At room temperature, it has thermal conductivity and electrical conductivity, as well as lower Vickers microhardness and higher elastic modulus. It can be machined like metal, and at a higher temperature. It has plasticity at temperature, an...

Claims

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Application Information

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IPC IPC(8): C08G73/02C08K9/02C08K9/00C08K7/00C08K3/14
CPCC08G73/0266C08K3/14C08K7/00C08K9/00C08K9/02C08K2201/003C08K2201/011
Inventor 朱建锋任莹莹王雷汤祎黄家璇周文静牛冬娟李学林
Owner SHAANXI UNIV OF SCI & TECH
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