Silicone rubber/polyvinylpyrrolidone microfibers produced by coaxial electrospinning

Abstract

Core‐shell structured silicone microfibers were prepared by coaxial electrospinning using polyvinylpyrrolidone (PVP) as the shell and silicone rubber (SR) as the core. The electrospinnability of SR at three time windows was evaluated and the electrospinning process was optimized accordingly. A positive correlation was found between the fibrous morphology and the SR/PVP speed ratios. As the speed ratio increased, the composite fiber showed larger diameter and wider diameter distribution. For the fibers prepared at PVP/SR speed ratios of 1.7/2.5 and 3.5/2.5 (mL/h), the fibrous structure remained intact after immersion in water for 8 h. The pure SR microfiber could be made from the composite after immersion in water, which can be potentially used as stretchable and selectively permeable membranes for chemical protective applications and in plastics toughening. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

Ultrafine PDMS fibers: preparation from in situ curing-electrospinning and mechanical characterization

“…PDMS bers were obtained by co-electrospinning of PDMS and polyvinylpyrrolidone (PVP), then solidication of the PDMS component through crosslinking, and nally dissolving the PVP component from the core-sheath bers. 22 However, the post-electrospinning curing treatment oen led to the leakage of uncured, liquid PDMS from the core-sheath bers. As a result, PDMS bers typically had an interconnected brous structure.…”

Preceramic polymer‐derived SiOC fibers by electrospinning

“…Normally, the production of ceramic fibers by electrospinning consists of three procedures: 1) preparation of the solution containing the ceramic precursor, 2) electrospinning of the prepared solution into polymer/inorganic composite fibers, and 3) calcination of the composite fibers to remove the polymer and to obtain the desired ceramic phase . In addition to the conventional fiber mats, fibers with complex architectures, such as core–shell fibers, porous fibers, hollow fibers or fibers aligned along different ordered patterns can also be produced by electrospinning using various electrospinning set‐ups …”

“…4 In addition to the conventional fiber mats, fibers with complex architectures, such as core-shell fibers, porous fibers, hollow fibers or fibers aligned along different ordered patterns can also be produced by electrospinning using various electrospinning setups. [7][8][9] Silicon oxycarbide (SiOC) is an amorphous covalent ceramic material whose composition can be expressed as SiC x O 2(1-x) 1 yC free ,…”

Development of laid-in knitted fabric for buoyant swimwear

“…It has been used for flexible medical tubing for more than 30 years due to its unique balance of cost saving and functional advantages [23]. Due to silicone’s high chemical inertness and good mechanical properties, it is widely used in tissue engineering [24]. It offers strong resistance to degradation by chlorinated water in swimming pools.…”