Rayon fiber-cellulose acetate composites

Fig. 55. Scanning electron micrograph of a cellulose-cellulose con osite. (A) and (B) Rayon fiber-cellulose acetate composites, after regeneration of cellulose acetate in aUcahne conditions, showing the poor quality of the interface. (C) and (D) Acetylated rayon fiber-ceUulose acetate composites after coregeneration in alkaline conditions, showing disappearance of the interfece.

Fig. 53. Scanning electron micrograph of the composite acetylated rayon fiber-cellulose acetate matrix.

Azoic components and compositions cotton, rayon, cellulose acetate and polyester fiber impregnated with coupling component and treated with a solution of stabilized diazonium salt azo... 

Cellulose is the most abundant naturally oeeurring polysaccharide formed out of glucose-based repeat imits, connected by 1,4-beta-glucosidic linkages. Cellulose and its derivatives are widely used as tough versatile materials. Cellulose nitrate, cellulose acetate (CA) and cellulose xanthate (rayon) can be easily molded or drawn into fibers for textile applications, for designing composite materials (safety glass), as thermoplastics etc [80]. 

Various synthetic fibers appear in clothing, upholstery, and industrial uses. They are better known by commercial names, that hide their source and composition. Quite often a blend of natural and synthetic fibers is offered. The first man-made fibers (that still are of major use) are essentially based on a modification of natural cellulose. Most common in use are rayon (viscose) and cellulose-acetate (called acetate). The oldest synthetic polymer in the textile industry is the polyamide (Nylon 6-6) developed in 1935. Currently there are many synthetic fibers, like the following ... 

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