Supersonic nanoblowing: A new ultra-stiff phase of nylon 6 in 20-50 nm confinement
- Supersonic nanoblowing: A new ultra-stiff phase of nylon 6 in 20-50 nm confinement
- 이민욱; Suman Sinha-Ray; Sumit Sinha-Ray; Seongpil An; Behnam Pourdeyhimi; Sam S. Yoon; Alexander L. Yarin
- Issue Date
- Journal of materials chemistry. C, Materials for optical and electronic devices
- VOL 1, NO 21-3498
- The 20-50 nm nanofibers hold great promise as functional fabrics, biomedical materials, filters, fuel cell membranes, ultra-speed fiber optics, electronics and sensorics. In our novel process of supersonic solution blowing of nylon-6, 20-50 nm nanofibers are obtained. Here we found a new phase of nylon-6, which differs from the known alpha-, beta-, gamma-, delta- and lambda-phases, presenting itself as a novel chi-phase. It is characterized by the decrease of CH2 stretching, a shift of -NH stretching, a different type of hydrogen bond and a ten-fold increase in Young's modulus compared to those of post-processed macroscopic nylon fibers.
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