Poly(ethylene-2,6-naphthalate) microfiber prepared by carbon dioxide laser-thinning method

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• 作者：Akihiro Suzuki ; Masaya Tojyo
• 关键词：Poly(ethylene-2 ; 6-naphthalate) ; Microfiber ; Carbon dioxide laser ; SEM ; WAXD ; DSC
• 刊名：European Polymer Journal
• 出版年：2007
• 期刊代码：35_00143057
• 类别：ms
• 出版时间：July 2007
• 卷：43
• 期：7
• 页码：2922-2927
• 文件大小：498 K

摘要

Poly(ethylene-2,6-naphthalate) (PEN) microfiber was continuously obtained by using a carbon dioxide (CO₂) laser-thinning method. As a winding speed increased, the fiber diameter decreased, and its birefringence increased. When the PEN microfiber, obtained by irradiating the laser operated at a power density of 9.15 W cm⁻² to the original fiber supplied at 0.33 m min⁻¹, was wound up at 1594 m min⁻¹, the obtained microfiber had a diameter of 2.8 μm, a birefringence of 0.174, tensile modulus of 5.4 GPa, and a tensile strength of 0.36 GPa.