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Stress-induced structural changes in electrospun polyvinylidene difluoride nanofibers collected using a modified rotating disk

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Stress-induced structural changes in electrospun polyvinylidene difluoride nanofibers collected using a modified rotating disk
นักวิจัย : Yee, Wu Aik , Nguyen, Anh Chien , Lee, Pooi See , Kotaki, Masaya , Liu, Ye , Tan, Boon Teoh , Mhaisalkar, Subodh Gautam , Lu, Xuehong
คำค้น : DRNTU::Engineering::Materials.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2551
อ้างอิง : Yee, W. A., Nguyen, A. C., Lee, P. S., Kotaki, M., Liu, Y., Tan, B. T., et al. (2008). Stress-induced structural changes in electrospun polyvinylidene difluoride nanofibers collected using a modified rotating disk. Polymer, 49(19), 4196-4203. , 0032-3861 , http://hdl.handle.net/10220/9123 , http://dx.doi.org/10.1016/j.polymer.2008.07.032
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Polymer
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

By attaching separate, parallel electrodes onto a rotating disk collector, well aligned electrospun polyvinylidene difluoride (PVDF), PVDF/carbon nanotube nanocomposite and vinylidene fluoride–trifluoroethylene copolymer nanofibers are directly deposited onto flat substrates forming relatively large, uniform and compact fibrous thin films. The attachments alter the electric-field distribution on the rotating disk, which fosters the fanning of the nanofibers, while the electric field between the separate electrodes and the mechanical force exerted by the rotational disk facilitate the alignment. X-ray diffraction and infrared spectroscopic studies show that the specific environment and force fields created on the modified rotating disk cause the electrospun fibers being effectively stretched to form highly oriented β-form crystallites with slightly reduced inter-chain distance. They also lead to slight increases in crystallinity and crystal size. A mechanism is proposed to account for the structural alteration induced by the modified rotating disk collector. Ferroelectricity of the aligned electrospun PVDF fibrous thin films is also demonstrated.

บรรณานุกรม :
Yee, Wu Aik , Nguyen, Anh Chien , Lee, Pooi See , Kotaki, Masaya , Liu, Ye , Tan, Boon Teoh , Mhaisalkar, Subodh Gautam , Lu, Xuehong . (2551). Stress-induced structural changes in electrospun polyvinylidene difluoride nanofibers collected using a modified rotating disk.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Yee, Wu Aik , Nguyen, Anh Chien , Lee, Pooi See , Kotaki, Masaya , Liu, Ye , Tan, Boon Teoh , Mhaisalkar, Subodh Gautam , Lu, Xuehong . 2551. "Stress-induced structural changes in electrospun polyvinylidene difluoride nanofibers collected using a modified rotating disk".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Yee, Wu Aik , Nguyen, Anh Chien , Lee, Pooi See , Kotaki, Masaya , Liu, Ye , Tan, Boon Teoh , Mhaisalkar, Subodh Gautam , Lu, Xuehong . "Stress-induced structural changes in electrospun polyvinylidene difluoride nanofibers collected using a modified rotating disk."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2551. Print.
Yee, Wu Aik , Nguyen, Anh Chien , Lee, Pooi See , Kotaki, Masaya , Liu, Ye , Tan, Boon Teoh , Mhaisalkar, Subodh Gautam , Lu, Xuehong . Stress-induced structural changes in electrospun polyvinylidene difluoride nanofibers collected using a modified rotating disk. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2551.