Effect of Gel Solution Concentration on the Structure and Properties of Gel-Spun Ultrahigh Molecular Weight Polyethylene Fibers

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• 作者：Minfang An ; You Lv ; Haojun Xu ; Bingjie Wang ; Yuxi Wang ; Qun Gu ; Zongbao Wang
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2016
• 出版时间：August 3, 2016
• 年：2016
• 卷：55
• 期：30
• 页码：8357-8363
• 全文大小：358K
• 年卷期：0
• ISSN：1520-5045

文摘

The gel-spun ultrahigh molecular weight polyethylene (UHMWPE) fibers were prepared at the industrial production line with different gel solution concentration of 10–18 wt %. The effect of gel solution concentration on the structure and performance of UHMWPE fibers was studied by tensile testing, differential scanning calorimetry (DSC), wide-angle X-ray diffraction (WAXD), and small-angle X-ray scattering (SAXS). With the increase of gel solution concentration, the ultimate mechanical properties of UHMWPE fibers decreased while the melting temperature increased. And the increase of gel solution concentration made the crystallization and orientation of UHMWPE fibers become worse. Furthermore, the average length (⟨L_shish⟩) and misorientation (B_ϕ) of shish structure in UHMWPE fibers decreased with the increase of gel solution concentration.