Zakaria Mohammad, Shibahara Kanta, Nakane Koji
Frontier Fiber Technology and Science, University of Fukui, Fukui 910-8507, Japan.
Department of Textile Engineering, Dhaka University of Engineering & Technology, Gazipur 1700, Bangladesh.
Polymers (Basel). 2020 Feb 16;12(2):457. doi: 10.3390/polym12020457.
We prepared low-density polyethylene (LDPE) nanofiber, a few hundred nanometers in diameter, using polyvinyl butyral (PVB) and a laser melt-electrospinning (M-ESP) device. We blended PVB with LDPE via an internal melt mixer, removed the PVB after M-ESP by ethanol treatment, and studied the influence of PVB on fiber diameter. A substantial diameter reduction with improved crystallinity of LDPE fiber was observed with increased PVB content in the blend. PVB inclusion also increased the polarity of the LDPE/PVB blend, resulting in better spinnability. The removal of PVB from LDPE/PVB blend fiber caused a massive drop in the LDPE fiber diameter, due to fiber splitting, particularly in PVB-rich samples. Fourier transform infrared (FTIR) spectroscopy of fibers confirmed that the prepared nanofiber was the same as pure LDPE fiber.
我们使用聚乙烯醇缩丁醛（PVB）和激光熔融静电纺丝（M-ESP）设备制备了直径为几百纳米的低密度聚乙烯（LDPE）纳米纤维。我们通过内部熔融混合器将PVB与LDPE共混，在M-ESP之后通过乙醇处理去除PVB，并研究了PVB对纤维直径的影响。随着共混物中PVB含量的增加，观察到LDPE纤维的直径大幅减小，结晶度提高。加入PVB还增加了LDPE/PVB共混物的极性，从而具有更好的可纺性。从LDPE/PVB共混纤维中去除PVB会导致LDPE纤维直径大幅下降，这是由于纤维分裂，特别是在富含PVB的样品中。纤维的傅里叶变换红外（FTIR）光谱证实，制备的纳米纤维与纯LDPE纤维相同。
