Nano bamboo carbon powder and preparation method thereof

Abstract

The invention discloses nanometer bamboo charcoal powder and a preparation method thereof. The method is characterized in that bamboo charcoal baked by an earth kiln is used, then a high-temperature electric box electric furnace is used for carbonization, the carbonization temperature is between 1,200 and 1,600 DEG C, the carbonization time is between 24 and 48 hours, carbide is crushed by a flatfluid jet mill into the particle size which is less than or equal to 1.5 um, and then the carbide, a coupling agent, an anion surfactant, a non-ionic interfacial agent-sodium polyacrylate salt used as a dispersant, a modified polysiloxane defoaming agent, and deionized water are mixed evenly and then are placed in a two-way rotary ball mill for grinding. The rotating speed of the ball mill is between 4,000 and 4,500r / m, and the grinding time is between 48 and 96 hours. A grinding mixture is diluted by the deionized water, is subjected to ultrasonic treatment, and is tested by a laser particlesize analyzer (the measurement range is between 3 and 3,000 nm), the particle size and the particle size distribution are measured by a wet method, and the mixture is regarded not to reach the standard when the particle size is more than 300nm. Then the mixture continues to be ground in the ball mill until the average particle size of the mixture reaches 60 to 300 nm through the detection, and then is dried to obtain the nanometer bamboo charcoal powder.

Description

【Technical field】 [0001] The invention belongs to a bamboo carbon powder and a preparation method thereof, in particular to a nanometer bamboo carbon powder and a preparation method thereof. 【Background technique】 [0002] Bamboo is an important forest resource in our country. It grows fast, can become useful in a short period of time, and has strong regeneration ability. It can be successfully afforested once, and can be felled and used sustainably. In the past, bamboo was mainly used to make agricultural tools, fuel, furniture, daily necessities, handicrafts, building materials, flooring and papermaking, etc., with low utilization value. [0003] With the development of science and technology, bamboo charcoal is fired from bamboo in China, which greatly expands its application field. Due to the special structure of bamboo charcoal, its molecular structure is hexagonal, the carbon is dense, the specific gravity is large, the pores are many, and the mineral content is rich....

AI Technical Summary

Problems solved by technology

However, there are still deficiencies. Because the firing temperature of the earthen kiln is difficult to reach high temperature, generally can only reach more than 800 degrees, and the temperature distribution in the furnace is very uneven, so the carbonization cracking is neither sufficient nor uniform, resulting in poor stability.

It is difficult to achieve nanometerization in the later grinding and refinement, and its particle size can only reach the micron level, which not only affects the performance of the above functions, but also affects its application range