Cellulose-based fibers from liquid–crystalline solutions. II. Processing and morphology of acetate/butyrate esters

Autor:	Garth L. Wilkes, Vipul Davé, Wolfgang G. Glasser
Rok vydání:	1993
Předmět:	Materials science Polymers and Plastics Concentration effect Condensed Matter Physics chemistry.chemical_compound Crystallinity Chemical engineering chemistry Liquid crystal Materials Chemistry Fiber Physical and Theoretical Chemistry Cellulose Solubility Composite material Spinning Natural fiber
Zdroj:	Journal of Polymer Science Part B: Polymer Physics. 31:1145-1161
ISSN:	1099-0488 0887-6266
DOI:	10.1002/polb.1993.090310910
Popis:	Fibers were spun from isotropic and anisotropic DMAc solutions of cellulose esters. Take-up speeds of the dry jet/wet spinning process varied. Water served as the coagulant. The mechanical properties of the fibers increased as spinning progressed from the isotropic to the anisotropic state of the solution. A trade-off in solubility and fiber properties was noted as the butyryl acetyl ratio decreased. Whereas high butyryl content enhances both overall solubility and the formation of liquid-crystalline solutions at lower concentration, it results in lower fiber modulus and strength
Databáze:	OpenAIRE
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