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- Title
Drawing and tensile properties of polyamide 6/calcium chloride composite fibers.
- Authors
Wei, Wei; Qiu, Liang; Wang, Xin-Ling; Chen, Hong-Ping; Lai, Yu-Ching; Tsai, Fang-Chang; Zhu, Ping; Yeh, Jen-Taut
- Abstract
The influence of calcium chloride (CaCl) contents on the drawing and tensile properties of polyamide 6 (PA6)/CaCl composite fibers prepared at varying drawing temperatures were investigated. At any fixed drawing temperature, the achievable draw ratio (D) values of PA6(CaCl) as-spun fiber specimens approach a maximum value, as their CaCl contents are close to the 3 wt% optimum value. The maximum D values obtained for PA6(CaCl) as-spun fiber specimens prepared at the optimum CaCl content reach another maximum as their drawing temperatures approach the optimum drawing temperature at 120 °C. The initial modulus, tensile strength and birefringence values of the PA6 and PA6(CaCl) fiber specimens were found to improve consistently with D or with drawing temperatures when they were stretched to a fixed D. Similar to those found for their achievable drawing properties, the ultimate initial modulus, tensile strength and birefringence values of PA6(CaCl) fiber specimens approach a maximum value, as their CaCl contents and drawing temperatures approach the 3 wt% and 120 °C optimum values, respectively. Experiments including thermal, FTIR, melt shear viscosity and wide angle X-ray diffraction experiments were performed on the PA6(CaCl) resin and/or fiber specimens to clarify the possible reasons accounting for the interesting drawing, tensile and birefringence properties found for the PA6(CaCl) fiber specimens.
- Subjects
CALCIUM chloride; POLYAMIDE fibers; COMPOSITE materials; TEMPERATURE effect; STRENGTH of materials; X-ray diffraction; FOURIER transform infrared spectroscopy
- Publication
Journal of Polymer Research, 2011, Vol 18, Issue 6, p1841
- ISSN
1022-9760
- Publication type
Article
- DOI
10.1007/s10965-011-9591-9