Preparation method of bamboo holocellulose nanofiber with high length-diameter ratio and high hemicellulose content
A technology of hemicellulose and nanofibers, applied in the direction of cellulose/protein conjugated artificial filaments, nanotechnology, fiber chemical characteristics, etc. low, can not fully meet the needs of use, etc., to achieve the effect of environmental friendliness, short time and easy operation
Active Publication Date: 2021-11-09
NANJING FORESTRY UNIV
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The invention discloses a preparation method of bamboo holocellulose nanofiber with high length-diameter ratio and high hemicellulose content. The method comprises the following steps of treating bamboo holocellulose by adopting an acetic acid-assisted eutectic solvent under the condition of microwave radiation, performing solid-liquid separation after the treatment is finished, dispersing the solid, performing homogenizing, and preparing the bamboo holocellulose nanofiber through a micro-jet machine, wherein the length-diameter ratio of the bamboo holocellulose nanofiber is not less than 300, and the hemicellulose content is not less than 14%. According to the method, the length-diameter ratio of nano holocellulose (HCNF) can be effectively increased, and the hemicellulose content of the obtained HCNF and the acetylation degree of cellulose are relatively high; and the obtained bamboo nano holocellulose has the advantages of being adjustable in size, uniform in dispersion and the like. Meanwhile, the method also has the advantages of simple process, mild reaction conditions, environmental friendliness, easiness in operation and the like, and has relatively high application potential.
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