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Preparation method of epoxy resin/MXene composite material

A technology of epoxy resin and composite materials, which is applied in the field of material science, can solve the problems of weakened ability to withstand strong force, limit the application of epoxy resin, and high surface energy, and achieve increased elastic modulus, low cost, and improved tensile fracture strength. Effect

Active Publication Date: 2019-06-14
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the cured epoxy resin, the macromolecular chains in the cured epoxy resin are cross-linked and reunited together and cannot move, and the structure is a three-dimensional network. In addition, the bond energy of the C-C bond and the C-O bond is small, and the surface energy is high. Make it very Brittle, the ability to withstand strong force is weakened, and it is easy to crack under the action of external force, etc., which largely limits the application of epoxy resin in engineering

Method used

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  • Preparation method of epoxy resin/MXene composite material
  • Preparation method of epoxy resin/MXene composite material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: the preparation of epoxy resin / Mxene composite material comprises the following steps:

[0037] Step 1, the preparation of MXene:

[0038] (1) After mixing Ti, Al, and C powders according to the molar ratio of 3:1.2:2, a high-purity ternary layered Ti3AlC2 ceramic bulk material was prepared by a pressureless sintering process at 1500 ° C, and the prepared Ti3AlC2 ceramic material was used Drilling machine drills powder, obtains Ti3AlC2 ceramic powder, and the prepared Ti3AlC2 ceramic powder passes through 200 mesh sieves;

[0039](2) Add 1 g of the prepared Ti3AlC2 ceramic powder to a mixed solution of 10 ml of hydrochloric acid with a concentration of 12 mol / ml and 1 g of lithium fluoride, add a magnetic rotor and stir in an oil bath environment at 40 ° C for 48 hours to corrode Al in Ti3AlC2 Atomic layer;

[0040] (3) Wash the corroded mixture suspension with 40ml of deionized water and centrifuge, pour off the supernatant, repeat several times until t...

Embodiment 2

[0054] Embodiment 2: the preparation of MXene-epoxy resin composite material comprises the following steps:

[0055] Step 1, the preparation of MXene:

[0056] (1) After mixing Ti, Al, and C powders according to the molar ratio of 3:1.2:2, a high-purity ternary layered Ti3AlC2 ceramic bulk material was prepared by a pressureless sintering process at 1500 ° C, and the prepared Ti3AlC2 ceramic material was used Drill the powder to obtain Ti3AlC2 ceramic powder. The prepared Ti3AlC2 ceramic powder is processed through a 325 mesh sieve;

[0057] (2) A total of two parts are prepared, and each part uses 1g of Ti3AlC2 ceramic powder prepared by adding 15ml of a mixed solution of hydrochloric acid with a concentration of 10mol / ml and 1g of lithium fluoride, adding a magnetic rotor and stirring in an oil bath environment at 50°C 72h, corrode the Al atomic layer in Ti3AlC2;

[0058] (3) Wash the corroded mixture suspension with 45ml of deionized water and centrifuge, pour off the su...

Embodiment 3

[0071] Embodiment 3: the preparation of epoxy resin / Mxene composite material comprises the following steps:

[0072] Step 1, the preparation of MXene:

[0073] (1) After mixing Ta, Al, and C powders according to the molar ratio of 2:1.2:1, a high-purity ternary layered Ta2AlC ceramic bulk material was prepared by a pressureless sintering process at 1200 ° C, and the prepared Ta2AlC ceramic material was used Drill the powder to get Ta2AlC ceramic powder. The prepared Ta2AlC ceramic powder is processed through a 200-mesh sieve;

[0074] (2) Add 1 g of the prepared Ta2AlC ceramic powder into 10 ml of an aqueous solution with a HF content of 50%, add a magnetic rotor and stir in an oil bath environment at 50°C for 72 hours to corrode the Al atomic layer in Ta2AlC;

[0075] (3) Wash the corroded mixture suspension with 40ml of deionized water and centrifuge, pour off the supernatant, repeat several times until the pH value of the supernatant is greater than or equal to 6;

[007...

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Abstract

The invention provides a preparation method of an epoxy resin / MXene composite material. The preparation method comprises the following steps: preparing a single-layer MXene, determining the addition amount of the single-layer MXene, compounding the single-layer MXene and an epoxy resin material, and the like. The preparation method is simple in process, short in time, high in efficiency and low incost, and the prepared epoxy resin / MXene composite material is remarkably improved in tensile breaking strength and good in mechanical property.

Description

technical field [0001] The invention belongs to the field of material science, in particular to a preparation method of epoxy resin / MXene composite material. Background technique [0002] In recent years, with the discovery of graphene and its unique physical and chemical properties, there has been an upsurge in the study of two-dimensional crystals. Two-dimensional layered nano-compounds are materials with a graphene-like structure. Due to the high specific surface area, they have a variety of excellent properties. In addition to graphene, there are also transition metal dichalcogenides, metal oxides, etc.; in recent years , Barsoum et al. used hydrofluoric acid to selectively etch away the Al atoms in the three-dimensional layered compound MAX to obtain a two-dimensional crystal compound with a graphene-like structure and named it MXene; its chemical formula is M n +1X n , n=1, 2, 3, M is an early transition metal element, and X is a carbon / nitrogen element. The precurs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K7/00
CPCY02E60/10
Inventor 应国兵刘璐张晨张凯城宿琳马凤辰王乘
Owner HOHAI UNIV
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