Preparation method of carboxymethyl cellulose polypyrrole conductive composite material
A technology of carboxymethyl cellulose and conductive composite materials, applied in circuits, electrical components, battery electrodes, etc., can solve problems such as processing difficulties, affecting battery cycle performance and discharge capacity, poor mechanical properties, etc., and achieve good application prospects Effect
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Embodiment 1
[0020] see figure 1 , the present embodiment provides a technical solution: a method for preparing a carboxymethylcellulose polypyrrole conductive composite material, comprising the following steps:
[0021] S1. Dissolving carboxymethyl cellulose, pyrrole and ammonium persulfate in aqueous medium respectively to obtain carboxymethyl cellulose solution, pyrrole solution and ammonium persulfate solution.
[0022] S2. Mix the carboxymethyl cellulose solution and the pyrrole solution evenly, then add the oxidant ammonium sulfate solution dropwise, and carry out polymerization reaction at 3° C. for 2 hours to obtain a reaction medium. The carboxymethyl group content of the carboxymethyl cellulose solution was 1.75 mmol / g. The mixing mass ratio of carboxymethyl cellulose solution and pyrrole solution is 100:5. The molar concentration of the oxidizing agent ammonium sulfate solution is 0.2mol / L, and the dropwise addition amount is 20mL.
[0023] S3. Add 20 mL of methanol to the re...
Embodiment 2
[0027] This embodiment provides a technical solution: a method for preparing a carboxymethylcellulose polypyrrole conductive composite material, comprising the following steps:
[0028] S1. Dissolving carboxymethyl cellulose, pyrrole and ammonium persulfate in aqueous medium respectively to obtain carboxymethyl cellulose solution, pyrrole solution and ammonium persulfate solution.
[0029] S2. Mix the carboxymethyl cellulose solution and the pyrrole solution evenly, then add the oxidant ammonium sulfate solution dropwise, and carry out a polymerization reaction at 3° C. for 3 hours to obtain a reaction medium. The carboxymethyl group content of the carboxymethyl cellulose solution was 1.75 mmol / g. The mixing mass ratio of carboxymethyl cellulose solution and pyrrole solution is 100:5. The molar concentration of the oxidizing agent ammonium sulfate solution is 0.2mol / L, and the dropwise addition amount is 30mL.
[0030] S3. Add 20 mL of methanol to the reaction medium to term...
Embodiment 3
[0034] This embodiment provides a technical solution: a method for preparing a carboxymethylcellulose polypyrrole conductive composite material, comprising the following steps:
[0035] S1. Dissolving carboxymethyl cellulose, pyrrole and ammonium persulfate in aqueous medium respectively to obtain carboxymethyl cellulose solution, pyrrole solution and ammonium persulfate solution.
[0036] S2. Mix the carboxymethyl cellulose solution and the pyrrole solution evenly, then add the oxidant ammonium sulfate solution dropwise, and carry out a polymerization reaction at 3° C. for 3.5 hours to obtain a reaction medium. The carboxymethyl group content of the carboxymethyl cellulose solution was 1.75 mmol / g. The mixing mass ratio of carboxymethyl cellulose solution and pyrrole solution is 100:5. The molar concentration of the oxidizing agent ammonium sulfate solution is 0.2mol / L, and the dropwise addition amount is 50mL.
[0037] S3. Add 20 mL of methanol to the reaction medium to te...
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Abstract
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