Processing and Properties of Poly (P-Phenylene Benzobisthiazole)/Nylon Fibers
Abstract
Polymeric composite fibers of Poly(p-phenylene benzobisthiazole) (PBT) and Nylon 6 and Nylon 6,6 were prepared and investigated. The objective was to achieve a composite in which the PBT was dispersed on a molecular level, to enhance reinforcement and mechanical properties. The effects of wet- stretching, heat-treatment time (0.5,1,2 minutes), heat-treatment tension (10- 100 MPa) and heat-treatment temperature (215 C - 295 C) on tensile properties were studied. Also, the influence of the nylon molecular weight (13700 and 17500 g/mole for Nylon 6,6 and 14500 and 20000 g/mole for Nylon 6) on composite fiber properties was studied. Moduli of 40 GPa and tensile strengths of 375 MPa were achieved for 30/70 PBT/nylon composites. Extended heat treatment of the nylon/ PBT fibers at 160 C to 225 C for periods of 12 to 19 hours increased to tensile modulus values by 20% to 50% and the tensile strengths by 1% to 14%. The inherent viscosity of the nylons increased for 12% to 108% as a result of extended heat treatment, indicating an increased in molecular weight.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1986
- Accession Number
- ADA179649
Entities
People
- Susan M. Wickliffe
Organizations
- University of Massachusetts Amherst