A kind of preparation method of polythiophene/nano-silver composite conductive material
A composite conductive and polythiophene technology, applied in nanotechnology and other directions, can solve problems such as poor mechanical properties, high cost, easy sedimentation, etc., and achieve the effects of increasing economic added value, reducing dosage, and uniform particle size.
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Embodiment 1
[0019] Prepare 1 mol / L silver nitrate solution and 1 mol / L potassium bromide solution respectively for later use. Under the conditions of light and stirring, the polythiophene solution was placed in a beaker as a substrate, silver nitrate and potassium bromide were added dropwise to the beaker, and silver bromide precipitates formed on the surface of the polythiophene. (500W high-pressure mercury lamp) decomposes to generate silver nanoparticles. The system was reacted under light and stirring for another 20 minutes. The product is separated at a high speed by a centrifuge, and washed several times with deionized water to obtain a polythiophene / nano-silver composite conductive material.
Embodiment 2
[0021] Prepare 5mol / L silver nitrate solution and 5mol / L potassium chloride solution respectively for later use. Under the conditions of light and stirring, the polythiophene solution was placed in a beaker as a base material, silver nitrate and potassium chloride were added dropwise to the beaker, and silver chloride precipitates formed on the surface of the polythiophene. (500W high-pressure mercury lamp) decomposes to generate silver nanoparticles. After the system was reacted under light and stirring for 2 hours, the product was separated at high speed by a centrifuge and washed several times with deionized water to obtain a polythiophene / nano-silver composite conductive material.
Embodiment 3
[0023] Prepare 3mol / L silver nitrate solution and 3mol / L potassium iodide solution respectively for later use. Under the condition of light and stirring, the polythiophene solution is placed in a beaker as the substrate, silver nitrate and potassium iodide are added dropwise to the beaker, and silver iodide precipitates are formed on the surface of the polythiophene, and silver iodide is formed under light conditions (500W high-pressure mercury lamp). Decomposition produces silver nanoparticles. The system was reacted under light and stirring for another hour, and the product was separated at high speed by a centrifuge, and washed several times with deionized water to obtain a polythiophene / nano-silver composite conductive material.
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