Strong Nanofibers from Polymer Nanocomposites by Electrospinning Process
- 详细技术说明
- Recent research at Cornell has lead to the development of enhanced-strength electrospun polymer nanocomposite fibers through the incorporation of nanosized clays into polymers such as polylactic acid (PLA) and Nylon 6.
- *Abstract
-
Recent research at Cornell has lead to the development of enhanced-strength electrospun polymer nanocomposite fibers through the incorporation of nanosized clays into polymers such as polylactic acid (PLA) and Nylon 6. While it was well-known that the incorporation of clay particles into polymers could increase strength, previous attempts to create nanocomposite nanofibers have resulted in low degrees of crystallinity and inadequate silicate layer alignment.
The new technique uses direct dissolution, in-situ polymerization, and melt compounding to incorporate the clays into the polymers before carefully controlling the spinning and solidification process to reliably create nanofibers with increased crystallinity and axial alignment of silicate layers. The result is nanocomposite nanofibers with vastly improved properties (in Nylon, 21% higher modulus and 52% higher strength than previous nanocomposites, and 89% higher modulus and 125% higher strength than nanofibers without silicate particles).
Polylactic acid/nanoclay electrospun fibers showing strong alignment of nanoclays
Potential Applications
- Filtration
- Protective clothing
- Biomedical applications
- Reinforced composites
Advantages
- Greatly enhanced strength of nanocomposite fibers
- *Licensing
- Martin Teschlmt439@cornell.edu(607) 254-4454
- 其他
-
- Patent: 7,083,854
- H. Zhou, K.W. Kim, E.P. Giannelis, Y.L. Joo, "Nanofibers from Poly (L-Latic) Acid Nanocomposites: Effects of Nanoclay on Molecular Structures" in Polymeric Nanofibers, ACS Symposium Series Book (in press, 2005).
- J.H. Chang, S.J. Kim, Y.L. Joo and S.S. Im, "Poly(ethylene terephtalate) Nanocomposites by in-situ Interlayer Polymerization: the Thermo-Mechanical Properties and Morphology of the Hybrid Fibers", Polymer, 45, 919-926 (2004).
- 国家/地区
- 美国
