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Affect of dope additives on finishing behavior of carbon fiber precursors
Author(s) -
Hou Chen,
Wang ChengGuo,
Ying Liang,
Cai HuaSu
Publication year - 2003
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.12922
Subject(s) - materials science , diffusion , activation energy , polyvinyl acetate , glass transition , fiber , composite material , polyvinyl alcohol , kinetics , polymer chemistry , chemical engineering , polymer , chemistry , organic chemistry , physics , quantum mechanics , engineering , thermodynamics
Finishing kinetics of acrylic precursor fibers was studied by using a new CGB finish. Effects of dope additives including polyvinyl pyrrolidone, glycerol, and polyvinyl acetate on finishing behavior of acrylic precursors were contrastively discussed. Diffusion coefficients for the finish were calculated from the Crank's equation. It is shown that the precursor fibers applied with the CGB finish do not give fluffs, broken, and adhered precursors. The increase of the finish uptake values is greater around the glass transition temperature, and the changes of uptake become less prominent as the finish bath temperature above the glass transition temperature. By use of the dope additives, the finish uptake values are enhanced; the diffusion coefficient for the finish is higher; the activation energy required for the finish is lower; the extent being greatest for the fibers containing polyvinyl pyrrolidone. The properties of the finished precursor fibers containing polyvinyl pyrrolidone are the best. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 2752–2755, 2003