Preparation method of cellulose hydrophobic material

Abstract

The invention discloses a preparation method of a cellulose hydrophobic material. The cellulose hydrophobic material is prepared by reacting cellulose and epoxidized vegetable oil. Compared with the prior art, the method has the advantages of wide sources and low price of the vegetable oil raw material; the prepared cellulose hydrophobic material has nanoparticle structures on the surface and has high surface roughness and favorable hydrophobicity, the contact angle reaches 137-155 degrees; the nanoparticles formed by the cellulose surface fibers enhance the roughness; and after the material is immersed in water for 48 hours, the saturation water absorptivity is 6-17 wt%, and the material can still keep the hydrophobicity.

Description

technical field [0001] The invention belongs to the field of material synthesis, and in particular relates to a preparation method of a cellulose hydrophobic material. Background technique [0002] Cellulose is one of the most abundant biomass resources in the world, and has the advantages of non-polluting and degradable. There are many hydroxyl groups on the surface of cellulose, so it is easy to modify cellulose to make it a hydrophobic material. Hydrophobic cellulose fibers are currently in high demand and are widely used in outdoor waterproof gear, raincoats, stain-resistant products, and bandages. Hydrophobic materials have shown their unique advantages, and their preparation and application have attracted extensive attention. [0003] Hydrophobic cellulose materials are made by chemically modifying the fibers on the surface of cellulose to make the surface fibers hydrophobic, and the pores in the fibers can still maintain air permeability. Modification of cellulose ...

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a preparation method of cellulose hydrophobic material which is complet

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