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The synthesis of nano cellulose composite membrane process

by:Kolysen     2021-01-16
Cellulose composite membrane is through in cellulose nano whisker HCl in situ polymerization of aniline monomer on the surface. In the process of synthesis, aniline hydrochloride molecule can be attractive adsorption on cellulose nano whisker surface, for example, cellulose macromolecule hydroxyl hydrogen bonding between amino with aniline, ensure the uniform distribution and strong adhesion. After joining the APS oxidant, HCl aniline monomer polymerization to cover these nano cellulose whisker surface, through the formation of dark green. Then get nano cellulose compound aqueous suspension by centrifugal washing until that clear supernatant fluid, and then dispersed in water used for casting for membrane. This method is environment friendly, no chemical solvents used in the synthesis of composite membrane. Thin film surface is smooth, free of powder you can't see in the low range. Can clearly see the random orientation of nano whisker overlap each other. However, under the high magnification on the surface of the cellulose nanocrystals are required to observe tiny PANI particles, suggests that tiny PANI particles optimization polymerization on the surface of the cellulose nano whisker.

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