Use of furfural as acetalization agent in place of formaldehyde is of special interest in relation to production of fibers with special properties; toxicity of process may be reduced by use of furfural since maximum permissible concentration of furfural in air is 10 times that of formaldehyde; degree of acetalization increases with increasing furfural content in bath, but increase of furfural concentration above 4% leads to formation of hard fibers; acetalization of PVA fibers by furfural takes 40 to 60 min in practice. (See also Zhurnal Prikladnoi Khimii v 39 n 11 Nov 1966 p 2601-4)
Acetalization of polyvinyl alcohol fibers by furfural
Atsetalirovanie polivinilspirtovogo volokna furfurolom
Journal of Applied Chemistry of USSR ; 39 , n 11
1966
3 pages
Aufsatz (Zeitschrift)
Englisch
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