Cellulose and derivatives

Cellulose and its derivatives are sensitive to solar radiation and degrade rapidly under weathering conditions. Cellulose itself is among the least weather resistant substances. Cellulose ethers are less resistant than cellulose esters [32]. [Pg.510]

Loss in mechanical strength on the weathered side after outdoor weathering in Central European climate of 3-mm thick extruded cellulose acetobutyrate sheet with 10%plasticizer (climate-stabilized), EKWA method according to DIN 53373 [Pg.510]

Cellulose was isolated for the first time some 150 years ago. Its structure is similar to amylose, composed of hundreds or thousands of D-glucopyranoside [Pg.369]

Cellulose acetate (CA) is one of the potentially useful cellulose esters, which is now commercially available. CA of various degree of substitution (DS) are now being widely used as films and coatings. CA films have a tensile strength comparable to polystyrene, which makes the polymer suitable for injection moulding. [Pg.370]

Thickeners can be added to increase the viscosity of the NR adhesives. Natural materials can be used such as casein or karaya gum, but currently synthetic polymers are used (methyl cellulose and derivatives, polyacrylates). [Pg.647]

Nitrocotton. A NC prepd by nitration of cotton. See under Cellulose and Derivatives in Vol 2, C95-Rff... [Pg.298]

See Alcohols Cellulose and derivatives Vegetable matter, all below See Acetic anhydride Perchloric acid... [Pg.1353]

See Hydrofluoric acid, Structural materials, below Cellulose and derivatives, above... [Pg.1358]

Gamma (y) Cellulose. See Vol 2 of Encycl, under CELLULOSE AND DERIVATIVES, p C96-L. Alpha (a) and beta ( ) celluloses are described on die same page... [Pg.653]

Cellulose derivatives Microcrystalline cellulose (and derivatives such as CMC) Nonionic 1-5 Insoluble in water 5-7 Plastic/ thixotropic Incompatible with strong oxidizing agents. Small amounts of electrolyte, cationic polymers and surfactants may flocculate MCC... [Pg.168]

Collodion cotton see Cellulose and derivs 2C103, C105... [Pg.524]

Its prepn, props, tests US Spec requirements are given under Nitrocellulose which is described under Cellulose and Derivatives... [Pg.215]

CELLULOSE AND DERIVATIVES Cellulose, (C6HtoOB)n mw (162.14), d 1.27 -1.61 a white, polysaccharide occurring in all vegetable tissues fibers. Its fundamental... [Pg.490]

C.J.Burton, IEC 35, 120-5(l943)(Electron microscope and cellulose) 19)E.Ott, "Cellulose and Derivatives , Interscience, NY(1943) 20)Hackh s(1944), 178 21)N.Gral6n, "Sedimentation and Diffusion Measurements on Cellulose and Cellulose Derivatives , Almqvist Wiksells, Uppsala(1944) 22)E.Heuser, "The Chemistry of Cellulose , Wiley, NY(1944) 22a)... [Pg.492]

Chemical Cellulose White fibers, consisting mostly of alpha-cellulose, obtained from vegetable matter(such as wood or cotton linters) by treatment with sulfite dilute NaOH soln or other reagent. Material obtained by treatment of cotton linters with dilute NaOH is also known as chemical cotton (See also CELLULOSE AND DERIVATIVES) Ref Merriam-Webster s(196l), 360 384... [Pg.568]

Collodion Cotton (abbr CC) or Collodion Nitro cotton. See Vol 2, ppC103 C105, under CELLULOSE AND DERIVATIVES... [Pg.177]

E. DuPont s Process. Some Cordite plants replaced the Thomson method with the "DuPont s Mechanical Dipper Process . This method was briefly described under CELLULOSE AND DERIVATIVES in Vol 2, p C102-R of this Encycl. [Pg.322]

Fluorine Miscellaneous materials, 4304 Magnesium perchlorate Cellulose, etc., 4078 /V-Meth yI morpholine oxide, 1991 Nitric acid Cellulose, 4430 Perchloric acid Cellulose and derivatives, 3992 Perchloric acid Hydrofluoric acid, Structural materials, 3992 Potassium chlorate Cellulose, 4011 Potassium nitrate Cellulose, 4645 Sodium chlorate Paper, etc., or Wood, 4033 Sodium nitrate Fibrous material, 4716 Sodium nitrite Wood, 4715 Sodium peroxide Fibrous materials, 4797 Zinc permanganate Cellulose, 4705 BLEACHING POWDER Wood perchlorates Organic matter See SUGARS... [Pg.2270]

Cellulose and Derivatives. Hot concentrated acid or cold anhydrous acid ignites on paper, wood fiber, or sawdust long-term contact of dilute acid with wood may cause fire explodes on contact with cellulose acetate or benzyl cellulose.13... [Pg.434]

Methods for Enhancing Ultraviolet and Radiation Grafting of Monomers to Cellulose and Derivatives to Improve Properties of Value to Conservation... [Pg.222]

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