EVA/polypyrrole/MXene composite material as well as preparation method and application thereof
A composite material, polypyrrole technology, applied in the direction of magnetic/electric field shielding, electrical components, etc., can solve the problems of poor environmental tolerance, difficult to withstand processing deformation, complex preparation process of electromagnetic shielding materials, etc., and achieve the effect of improving structural stability
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[0025] A kind of EVA / polypyrrole / MXene composite material and preparation method thereof, the steps are as follows:
[0026] (1) Dispersing MXene in deionized water, ultrasonic treatment for 1h, to obtain MXene dispersion;
[0027] (2) Dissolve the pyrrole monomer in 2 mL of isopropanol solution, then add the solution dropwise to 6 mL of MXene dispersion, stir and react at room temperature for 12-24 hours to obtain a polypyrrole / MXene mixed solution, and freeze-dry to obtain a poly Pyrrole / MXene powder;
[0028] (3) Dry the EVA microspheres in an oven at 45°C for 3 hours, then mix the EVA microspheres, polypyrrole / MXene powder, and crosslinking agent evenly to obtain a powder mixture; put the obtained powder in a torque rheometer Mixing and processing, that is, the masterbatch; the process parameters of mixing and processing raw materials in a torque rheometer are as follows: temperature is 50-100°C, rotation speed is 10-50 rpm, and time is 2-8 minutes.
[0029] (4) The obta...
Embodiment 1
[0036] (1) Put Ti 3 C 2 Tx was dispersed in deionized water and ultrasonically treated for 1 h to obtain MXene dispersion;
[0037] (2) Dissolve 0.005moL pyrrole monomer in 2mL isopropanol solution, and then add the solution dropwise to 6mL, 0.005mg / mL MXene dispersion, stir and react at room temperature for 12h to obtain polypyrrole / MXene mixture Solution, obtain polypyrrole / MXene powder after freeze-drying;
[0038] (3) Dry the EVA microspheres in an oven at 45°C for 3 hours, then mix 100 parts of EVA microspheres, 5 parts of polypyrrole / MXene powder, and 0.4 parts of triallyl isocyanurate to obtain a powder mixture ; The obtained powder is mixed and processed in the torque rheometer, which is the masterbatch; the process parameters for the raw material to be mixed and processed in the torque rheometer are as follows: the temperature is 60 ° C, the rotating speed is 10 rpm, and the time is 3min.
[0039] (4) The obtained masterbatch is hot-pressed and molded in a hot pre...
Embodiment 2
[0041] (1) Put Ti 3 C 2 Tx was dispersed in deionized water and ultrasonically treated for 1 h to obtain MXene dispersion;
[0042] (2) Dissolve 0.009moL pyrrole monomer in 2mL isopropanol solution, and then add the solution dropwise to 6mL, 0.0108mg / mL MXene dispersion, stir and react at room temperature for 15h to obtain polypyrrole / MXene mixture Solution, obtain polypyrrole / MXene powder after freeze-drying;
[0043](3) Dry the EVA microspheres in an oven at 45° C. for 3 hours, then mix 100 parts of EVA microspheres, 4 parts of polypyrrole / MXene powder, and 0.5 part of dicumyl peroxide to obtain a powder mixture; The powder is mixed and processed in the torque rheometer, which is the masterbatch; the process parameters for the raw material to be mixed and processed in the torque rheometer are as follows: the temperature is 50°C, the speed is 15 rpm, and the time is 2 minutes.
[0044] (4) The obtained masterbatch is hot-pressed and molded in a hot press, and the EVA / polyp...
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