Layered two-dimensional nanosheet/carbonized fiber composite material, preparation method and application
A fiber composite material, two-dimensional nanotechnology, applied in the selection of device materials, the manufacture/assembly of piezoelectric/electrostrictive devices, and the selection of materials for piezoelectric or electrostrictive devices, etc., can solve the problem of low sensitivity. Service life and other issues, to achieve the effects of high sensitivity, strong deformation recovery ability, and simple preparation method
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Embodiment 1
[0033] The steps of the layered two-dimensional nanosheet / carbonized fiber composite material of this embodiment include:
[0034] S100: pretreatment of fiber raw materials; pretreatment of wood or its processing residues, the diameter of the fiber pulverized material obtained after pretreatment is less than 50 μm, and the moisture content is 8% to 10%; the pretreatment in this embodiment includes necessary cut or shredded and then dried;
[0035] S200: prepare a suspension; mix the fiber pulverized material obtained in step S100, graphene and deionized water and carry out rubber mill treatment to obtain a suspension; wherein the weight and number ratio of the fiber pulverized material and graphene is 99.5: 0.5, the addition of the deionized water is 3 times the total weight of the fiber pulverized material and the two-dimensional nanosheets; the rubber mill treatment time is 6h; generally, the rubber mill speed is 2750 ~ 2900rmp;
[0036] S300: Prepare the layered two-dimens...
Embodiment 2
[0043] The steps of the layered two-dimensional nanosheet / carbonized fiber composite material of this embodiment include:
[0044] S100: pretreatment of fiber raw materials; pretreatment of wood or its processing residues, the diameter of the fiber pulverized material obtained after pretreatment is less than 50 μm, and the moisture content is 8% to 10%; the pretreatment in this embodiment includes necessary cut or shredded and then dried;
[0045] S200: preparing a suspension; mixing the fiber pulverized material, graphene and deionized water obtained in step S100, and then performing rubber milling treatment to obtain a suspension; wherein the weight and number ratio of the fiber pulverized material to graphene is 99: 1. The amount of deionized water added is 3 times the total weight of the fiber pulverized material and the two-dimensional nanosheets; the rubber mill treatment time is 6 hours; generally, the rubber mill speed is 2750-2900rmp;
[0046] S300: Prepare layered two...
Embodiment 3
[0050] The steps of the layered two-dimensional nanosheet / carbonized fiber composite material of this embodiment include:
[0051] S100: pretreatment of fiber raw materials; pretreatment of wood or its processing residues, the diameter of the fiber pulverized material obtained after pretreatment is less than 50 μm, and the moisture content is 8% to 10%; the pretreatment in this embodiment includes necessary cut or shredded and then dried;
[0052] S200: prepare a suspension; mix the fiber pulverized material, graphene and deionized water obtained in step S100 and carry out rubber mill treatment to obtain a suspension; wherein the weight and number ratio of the fiber pulverized material and graphene is 98.5: 1.5. The amount of deionized water added is 3 times the total weight of the fiber pulverized material and the two-dimensional nanosheets; the rubber mill treatment time is 6 hours; generally, the rubber mill speed is 2750-2900rmp;
[0053] S300: Prepare layered two-dimensi...
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