Graphene and metal nanowire composite transparent and conductive plastic film, manufacturing method and application thereof
A technology of metal nanowires and graphene films, which is applied in cable/conductor manufacturing, conductive layers on insulating carriers, circuits, etc., can solve problems such as instability, inapplicability for long-term applications, and large surface resistance, so as to resist aging impact, excellent light transmittance and electrical conductivity, good effect of anti-peeling performance
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[0074] Example 1. Preparation of graphene and silver nanowire composite transparent conductive plastic film
[0075] 1) Single-layer graphene film / copper foil: Using industrial electrolytic copper foil, the copper foil is cut into 10cm x 5m (width x length), and placed in the running system of the continuous production system under a hydrogen atmosphere with a flow rate of 50sccm. Raise the furnace temperature to 1000℃, the system pressure is about 50Pa, then change the hydrogen flow rate to 2sccm, pass in 36sccm methane gas, keep it at 1000℃, and use a stepper motor to control the copper foil's operating speed to 1r / min. The foil is attached to the wall of the quartz tube. After the operation is completed, the hydrogen and methane are turned off to obtain a large-area single-layer graphene deposited on the surface of the copper foil. After the copper foil is cooled to room temperature, the furnace body is opened and the copper foil is taken out;
[0076] The typical electron micro...
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[0108] Example 2: Preparation of graphene and copper nanowire composite transparent conductive plastic film
[0109] 1) Single-layer graphene film / copper foil: the steps are the same as those in Example 1 step 1);
[0110] 2) Preparation of PET / EVA / Cu NWs composite plastic film: use commercial heat-laminated film PET / EVA, clean the PET / EVA film with isopropanol, blow dry, and then treat it with 90W air plasma for 2 minutes to improve the EVA surface Hydrophilicity;
[0111] Disperse the metal copper nanowires in ethanol to a concentration of 10mg / mL. Before use, dilute the Cu NWs suspension with ethanol to 1mg / mL, and ultrasonically disperse it in an ultrasonic cleaner with a power of 99W for 1 min to obtain a dispersion Uniform metallic copper nanowire suspension;
[0112] The following process 1 or process 2 can be used to form the metal copper nanowire layer on the PET / EVA film:
[0113] Process 1: The spin coating process of the homogenizer is to adjust the concentration of differ...
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