The invention provides a preparation method of
carboxymethyl cellulose fibers. The preparation method comprises the steps of alkalization, etherification and post-treatment.
Cellulose fiber is used as a
raw material and is carried out in an
organic solvent, so that the initial structure of the
cellulose fiber can be reserved, and the structure and the form of the
fiber are basically not influenced. Cetyltrimethylammonium
bromide is added during etherification, so that the
surface tension of the fiber is reduced, the hydrophilicity of the fiber is improved, and the reaction efficiency is improved; meanwhile, hexadecyl trimethyl
ammonium bromide is used as a brominating agent, free
bromide ions in the
system directly participate in the reaction during etherification, and the fibers are brominated to form a new grafted
copolymer, so that the wettability and adsorbability of the fibers are improved, and the fibers can quickly adsorb
exudate after being made into medical dressing, so that wounds are kept dry, and the breeding of
bacteria is reduced. According to the invention, the stirring reaction pot is improved, so that the influence on the structure and form of the fiber caused by the problems of fiber hanging, winding,
caking and the like during etherification is avoided.