Nylon 6/expanded graphite/nickel composite material for electromagnetic shielding container, and preparation method thereof
A technology of expanded graphite and composite materials, applied in metal material coating process, liquid chemical plating, coating, etc., can solve the problems of high addition amount, low electrical conductivity, expensive production cost, etc., and achieve improved electrical conductivity and electromagnetic Shielding performance, conductivity and electromagnetic shielding performance are stable, and the effect of high electromagnetic shielding performance
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Embodiment 1
[0031] A preparation method of nylon 6 / expanded graphite / nickel composite material, comprising the following steps:
[0032] (1) The expanded graphite and nylon 6 with a volume ratio of 0.15:99.66 were placed in a high-speed blender and blended for 1 minute at a speed of 24000 r / min to obtain expanded graphite-coated nylon 6 particles.
[0033] (2) Pretreat the surface of the expanded graphite-coated nylon 6 particles, including: sensitization: add 40 g of expanded graphite-coated nylon 6 particles to 1000 ml of sensitization solution, stir in an ultrasonic water bath for 15 minutes at 30° C., Washing; Activation: Add the sensitized expanded graphite-coated nylon 6 particles to 1000ml activation solution, stir in an ultrasonic water bath at 30°C for 15min, wash and dry for later use.
[0034] Wherein the preparation process of the sensitizing solution and the activating solution is as follows:
[0035] Sensitizing solution: Weigh 20g of stannous chloride, add 10ml of 36wt% co...
Embodiment 2
[0041] A preparation method of nylon 6 / expanded graphite / nickel composite material, comprising the following steps:
[0042] (1) The expanded graphite and nylon 6 with a volume ratio of 0.15:99.66 were placed in a high-speed blender and blended for 2 minutes at a speed of 24000 r / min to obtain expanded graphite-coated nylon 6 particles.
[0043] (2) Pretreat the surface of the expanded graphite-coated nylon 6 particles, including: sensitization: add 40 g of expanded graphite-coated nylon 6 particles to 1000 ml of sensitization solution, stir in an ultrasonic water bath for 15 minutes at 30° C., Washing; Activation: Add the sensitized expanded graphite-coated nylon 6 particles to 1000ml activation solution, stir in an ultrasonic water bath at 30°C for 15min, wash and dry for later use.
[0044] Wherein the preparation process of the sensitizing solution and the activating solution is as follows:
[0045] Sensitizing solution: Weigh 20g of stannous chloride, add 10ml of 36wt% c...
Embodiment 3
[0051] A preparation method of nylon 6 / expanded graphite / nickel composite material, comprising the following steps:
[0052] (1) The expanded graphite and nylon 6 with a volume ratio of 0.15:99.66 were placed in a high-speed blender and blended for 3 minutes at a speed of 24000 r / min to obtain expanded graphite-coated nylon 6 particles.
[0053] (2) Pretreat the surface of the expanded graphite-coated nylon 6 particles, including: sensitization: add 40 g of expanded graphite-coated nylon 6 particles to 1000 ml of sensitization solution, stir in an ultrasonic water bath for 15 minutes at 30° C., Washing; Activation: Add the sensitized expanded graphite-coated nylon 6 particles to 1000ml activation solution, stir in an ultrasonic water bath at 30°C for 15min, wash and dry for later use.
[0054] Wherein the preparation process of the sensitizing solution and the activating solution is as follows:
[0055] Sensitizing solution: Weigh 20g of stannous chloride, add 10ml of 36wt% c...
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