Centrifugally spun starch/polyvinyl alcohol ultrafine fibrous membrane as environmentally‐friendly disposable nonwoven
Xianglong Li, Jing Liu, Yishen Lu, Teng Hou, Jing Zhou, Antuo Wang, Xianggui Zhang, Bin Yang
Abstract
Abstract We developed a new environmentally‐friendly disposable nonwoven based on centrifugally spun ST/PVA ultrafine fibrous membrane in this research. The effects of ST/PVA ratio as well as formic acid post‐treatment on thermal properties, tensile strength, and disposability of fibrous membranes were studied. To observe the morphology and chemical structures changing of fibers during fabrication and post‐treatment, the obtained fibers were characterized by scanning electron microscopy, x‐ray diffraction, and Fourier transform infrared spectroscopy. The fibrous membranes with uniform fiber diameters and excellent disposability properties were formed. The ST/PVA ratio of fibers was optimized according to the disposability and tensile strength of the fibrous membranes. Disintegration of untreated and post‐treatment fibrous membrane with ST/PVA ratio of 3/1 was over 80% and 40%, respectively, and the tensile strength was improved over two times comparing with pure starch fibrous membrane.