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Flexible Polymer Ultra-Fine Fiber with Extreme Toughness
Guangliang Zhou1, Guang Yang1, Xilin Li1
1Key Laboratory of Advanced Technologies of Material, Minister of Education, School of Materials Science and Engineering & School of Mechanical Engineering , Southwest Jiaotong University , Chengdu 610031 , China.
Abstract:
Fiber materials with multilevel interior structures have myriad applications in many fields due to their unique properties. In this study, we develop a bioinspired flexible ultrafine polymer fiber via an integrated microfluidic-electrospinning technology. The fiber possesses periodic hollow and tubular chambers with a shell layer of approximately 150 nm in thickness extremely like natural bamboo. The single fiber with a diameter of ∼1.5 μm exhibits the Young's modulus ranging from 2 to 7 MPa measured with atomic force microscopy (AFM). The fiber with periodic hollow chambers and extreme toughness can find many applications in medicine, industry, and agriculture.
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