RESEARCH AND DEVELOPMENT OF HIGH TENACITY FIBERS. PART I. POLYOLEFINS.
Abstract
Efforts to achieve high tenacity polyolefin fibers of 12 g.p.d. or greater have thus far been directed along two lines; namely, exploratory spinning and creep drawing of quenched fibers. Work thus far covers one type of polypropylene only, Profax 6523. Using conventional spinning scheme it was demonstrated that drawn fibers yielding 9 g.p.d. (100%/min strain rate) may be systematically realized. A relationship between total orientation and tenacity has been observed which will form the main basis for further development work. Experiments with a jacketed spinning way appears to give highly uniform denier at lower polymer temperatures. This should facilitate the spinning of higher molecular weight polymer for evaluation. A second line of research has been to creep draw quenched fibers in order to see what strengths could be developed by this method. Thus far 8 g.p.d. has been the highest tenacity produced. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 20, 1962
- Accession Number
- AD0623888
Entities
People
- A. W. Stoner
- H. P. Kato