Centrifugally spun starch/polyvinyl alcohol ultrafine fibrous membrane as environmentally‐friendly disposable nonwoven

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.

Cross-Linking of Centrifugally Spun Starch/Polyvinyl Alcohol (ST/PVA) Composite Ultrafine Fibers and Antibacterial Activity Loaded with Ag Nanoparticles

“…Our group concentrated on the development of ultrafine fibers using centrifugal spinning at the beginning of 2013. We now have successfully developed the setups of electric-assisted centrifugal spinning, air-assisted centrifugal spinning, and melting centrifugal spinning . By using these setups, we not only prepared ultrafine fibers from polyester (PET), polyvinylpyrrolidone (PVP), polyoxyethylene (PEO), and regenerated silk but also created highly porous ethyl cellulose fibers, alginate-rich nanofibers, and grape-tree-like and porous PTFE fibers .…”

A robust eco-compatible microporous iron coordination polymer for CO2 capture

“…In the past few years, the series of Pebax polymers was used as a continuous phase in MMMs owing to their promising separation performances resulting from their structural exibility and solubility-selective gas separation. [47][48][49][50][51][52][53][54][55] Moreover, a few rubbery Pebax-MOF MMMs have shown better MOF-polymer interfacial properties in comparison to numerous MMMs based on rigid glassy polymers. [47][48][49][50][51][52][53][54][55] MIL-178(Fe)-Pebax-X MMMs with different MIL-178(Fe) contents (X ¼ 5-25 wt%) were fabricated following a two-step protocol (polymer dissolution and ller dispersion followed by casting), as explained in the Experimental section.…”

“…[47][48][49][50][51][52][53][54][55] Moreover, a few rubbery Pebax-MOF MMMs have shown better MOF-polymer interfacial properties in comparison to numerous MMMs based on rigid glassy polymers. [47][48][49][50][51][52][53][54][55] MIL-178(Fe)-Pebax-X MMMs with different MIL-178(Fe) contents (X ¼ 5-25 wt%) were fabricated following a two-step protocol (polymer dissolution and ller dispersion followed by casting), as explained in the Experimental section. PXRD patterns of the different MIL-178(Fe)-Pebax-X MMMs display the characteristic Bragg peaks of MIL-178(Fe), the intensity of which increases with the amount of MIL-178(Fe) (Fig.…”

Development and characterization of starch‐based films added ora‐pro‐nobis mucilage and study of biodegradation and photodegradation

“…Starch is a biodegradable polymer with filmogenic properties. 22,23 Starch-based films added MOPN are potentially interesting as clean and green bioplastics with good mechanical and barrier properties. Thus, the hypothesis is that MOPN may prevent oxidation caused by solar radiation and prevent retrogradation of starch.…”

“…Starch is a biodegradable polymer with filmogenic properties 22,23 . Starch‐based films added MOPN are potentially interesting as clean and green bioplastics with good mechanical and barrier properties.…”