Studies on the electrospun submicron fibers of SIS and its mechanical properties

• Published in: Journal of applied polymer science Vol. 114; no. 3; pp. 1580 - 1586
• Main Authors: Feng, Shu-Qin, Shen, Xin-Yuan, Fu, Zhong-Yu, Ji, Ya-Li
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.11.2009; Wiley
• Subjects: Applied sciences; Concentration (composition); elastomer; Electrospinning; electrospun; Exact sciences and technology; Fibers; Fibers and threads; Forms of application and semi-finished materials; Mechanical properties; mechanical property; Polymer industry, paints, wood; Polystyrene resins; Reproduction; SIS; Solvents; Strain; submicron fibers; Technology of polymers; Tensile strength; Synthetic fiber; submicron fibers; Electrospinning; Mechanical properties; Thermoplastic rubber; elastomer; mechanical property; Experimental study; Property processing relationship; Tensile strength; Structure processing relationship; Triblock copolymer; Solvent spinning; electrospun; Morphology; Non woven material; Technological properties; SIS; Diameter; Spinnability
• ISSN: 0021-8995; 1097-4628; 1097-4628
• DOI: 10.1002/app.30700

The submicron fibers were prepared via electrospinning the styrene-isoprene-styrene (SIS) triblock copolymer from a pure solvent of tetrahydrofuran (THF) and a mixed solvent of THF and N, N-dimethylformamide (DMF). The addition of DMF to THF resulted in a beneficial effect on the fiber formation and the electrospinnability. The obtained results revealed that the fibers were only formed in a narrow solution concentration range of 8-15 wt %; the morphology, diameter, structure, and mechanical performance of as-spun fibers from PS and SIS solutions were affected by the composition weight ratio and the solution properties; and those from the solution at the intermediate concentration of 10 wt % exhibited a maximum tensile strength and strain at break.