Preparation method of peanut shell based foam carbon

Abstract

Belonging to the field of foam carbon, the invention discloses a preparation method of peanut shell based foam carbon. The method consists of: firstly conducting peanut shell liquefaction, making liquefied peanut shell and formaldehyde into peanut shell based thermosetting resin, and then acquiring short bamboo charcoal fiber from bamboo splits, and putting the short bamboo charcoal fiber and peanut shell based thermosetting resin, p-toluenesulfonic acid, sodium bicarbonate and fatty glyceride as raw materials into a mould to conduct foaming to obtain short bamboo charcoal fiber modified foamed resin, and finally charring the short bamboo charcoal fiber modified foamed resin to obtain the peanut shell based foam carbon. The peanut shell based foam carbon prepared by the method provided by the invention has uniform foam carbon aperture, large specific surface area and strong adsorption capacity, utilizes the short bamboo charcoal fiber modified foamed resin to enhance the mechanical strength of foam carbon so as to avoid crack phenomenon, and by using peanut shell as the foam carbon base material, the preparation cost is low.

Description

Technical field [0001] The present invention disclosed a preparation method for peanut shell base foam charcoal, which belongs to the field of foam charcoal. Background technique [0002] Foam charcoal is a lightweight mesh material that uses high temperature foaming as a front body that uses organic substances as charcoal through high temperature foam and high temperature carbonization to obtain a large -sized pores formed by the coil atom.According to the micro -structure of the hole, it can be divided into graphite foam charcoal and non -graphical foam charcoal. Both have excellent physical and chemical stability. [0003] The preparation raw materials for foam charcoal materials are mainly non -biomass raw materials, such as asphalt and polymers. There are limited and non -renewable problems of raw material resources.Because the phenolic resin has the characteristics of high carbon rate after thermal solution, it has become a preparation of foamy charcoal preparation material...

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention: the raw materials for the preparation of foam carbon materials are mainly non-biomass raw materials, such as asphalt, polymer, etc., and there are limited and non-renewable raw material resources, while the biomass-based foam carbon has poor strength, The defect of brittleness and fragility provides a preparation method of peanut shell-based foam charcoal. The invention first liquefies peanut shells, makes peanut shell-based thermosetting resin from liquefied peanut shells and formaldehyde, and then obtains short bamboo charcoal from bamboo strips fiber, and put short bamboo charcoal fiber and peanut shell-based thermosetting resin, p-toluenesulfonic acid, sodium bicarbonate, and fatty acid glycerides into the mold for foaming as raw materials to obtain short bamboo charcoal fiber modified foam resin, and finally carbonize it. Peanut shell-based foam carbon can be obtained. The peanut shell-based foam carbon prepared by the present invention has uniform pore size, large specific surface area, and strong adsorption capacity. The use of short bamboo charcoal fibers to modify the foam resin can enhance the mechanical strength of the foam carbon to avoid cracks. , using peanut shells as the foam carbon base material, the preparation cost is low