Electric conduction dust-free health care carbon granule

Abstract

The invention relates to the field of polymers, in particular to a conductive dust-free health-care carbon particle. It is made through the following steps: Raw material pretreatment: put the plant raw material into a microwave vacuum tank, vacuumize it, and then carry out microwave treatment; then undergo drying, pre-carbonization, carbonization, calcination and cooling in sequence, and control the combustion at 5-15°C Raise the temperature to 700-750°C or 900-1000°C at a rate of 5-15°C / min and keep it warm for 40-80 minutes, then raise the temperature to 1000-1500°C or 1600-1800°C at a rate of 5-15°C / min and keep it warm for 2-8 hours, then Cool down to 300-400°C at a rate of 18-25°C / min, and then cool to room temperature with the furnace to obtain primary carbon; soaking treatment: soak the obtained primary carbon in a solution with an acid content of 3-5wt% for 20-40min , and then mixed and submerged with potassium oxalate solution with a mass fraction of 8-10% according to a mass ratio of 1:3-4 for 3-5h, and then washed with deionized water until the pH value is neutral; microwave treatment; carbon particle preparation. The carbon particles prepared by the invention do not contain dust and impurities, have good antistatic properties, and have health care functions.

Description

technical field [0001] The invention relates to the field of polymers, in particular to a conductive dust-free health-care carbon particle. Background technique [0002] At present, the methods for firing wood charcoal materials include a one-time carbonization firing method and a graded temperature-controlled firing method. [0003] The secondary carbonization firing method is a method in which the incompletely carbonized wood charcoal is sintered at a high temperature to prepare a conductive wood charcoal material. For example, Japanese patent JP 2005035806 conductive charcoal or bamboo charcoal and its preparation method is a method for preparing conductive charcoal or bamboo charcoal by carbonizing block charcoal or bamboo charcoal at a temperature above 1000°C once. The carbon yield of this preparation method is high, but the sintering process requires a second temperature rise for sintering, and the carbon oxidation is likely to occur during the second sintering proce...

AI Technical Summary

Problems solved by technology

[0005]The above-mentioned methods all carbonize block wood or bamboo, and all of them are heated up to the sintering temperature and immediately cooled down, so there are uneven carbonization, poor stability, and poor electrical conductivity. Low, poor antistatic properties, etc.

And it contains dust and impurities, and the health care function needs to be improved

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