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A new kind of nano-crysta cellulose (NCC) prepared from natural cotton fiber has been obtained by the method ofacid hydrolysis. Compared to most other nanophase materials that derive from inorganic materials, our products are preparedfrom natural cotton fibers. The products are of spherical shape with mixed crystal forms of cellulose I and II. The preparationconditions determine the properties of the products. Prior treatment is a critical procedure. The properties of the products arealso strongly affected by such conditions as the kinds of acids used, the ratio of the acid mixture, the acid concentration, theultrasonic agitation time and hydrolysis temperature. The number average molecular weight of NCC is determined by gelpermeation chromatography (GPC). The particle size and shape were determined by transmission electron microscopy(TEM). X-ray diffraction was used to detect the crystallinity and average crystallite size of the panicle.
Compared to most other nanophase materials that derive from inorganic materials, our products are prepared from the method of acid cotton fibers. Compared to most other nanophase materials shape with mixed crystal forms of cellulose I and II. The preparationconditions determine the properties of the products. The treatment of a products arealso strongly affected by such conditions as the kinds of acids used, the ratio of the acid mixture, the acid concentration, theultrasonic agitation time and hydrolysis temperature. The number size and shape were determined by transmission electron microscopy (TEM). The number average molecular weight of NCC is determined by gel permeation chromatography (GPC). X-ray diffraction was used to detect the crystallinity and average crystallite size of the panicle.