Transition behaviors and hybrid nanofibers of poly(vinyl alcohol) and polyethylene glycol–POSS telechelic blends

Kim, Kyu-Oh; Seo, Yuna; Kim, Byoung‐Suhk; Yoon, Kee-Jong; Khil, Myung-Seob; Kim, Hee Young; Kim, Ick‐Soo

doi:10.1007/s00396-011-2407-y

Cited by 32 publications

(21 citation statements)

References 38 publications

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“…The solution concentration used in this work was about 12 wt%. In order to produce electrospun nanofibers, a high-voltage power supply (CPS-60 K022V1, Chunpa EMT Co.) capable of generating voltages up to 100 kV was used to produce an electric field [26][27][28]30]. The PU solution was supplied through a plastic syringe attached to a capillary tip with an inner diameter of 0.6 mm and electrospun onto a rotating metallic collector.…”

Section: Methodsmentioning

confidence: 99%

Enhanced mechanical properties and pre-tension effects of polyurethane (PU) nanofiber filaments prepared by electrospinning and dry twisting

et al. 2012

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We studied the mechanical properties of polyurethane (PU) nanofiber filaments prepared by electrospinning and dry twisting, and compared them with those of the corresponding nonwoven PU nanofiber webs. The morphologies and mechanical properties of the nonwoven PU nanofiber webs and the corresponding PU nanofiber filaments were investigated by scanning electron microscopy (SEM) and through the use of a universal testing machine (UTM), respectively. The tensile strength and the Young's modulus of the nanofiber filaments improved dramatically as the number of twists or the width of the nanofiber webs was increased compared with the nonwoven PU nanofibers. Moreover, it was found that applying pre-tension was an effective method of increasing the mechanical properties of PU nanofiber filaments.

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Section: Methodsmentioning

confidence: 99%

Enhanced mechanical properties and pre-tension effects of polyurethane (PU) nanofiber filaments prepared by electrospinning and dry twisting

et al. 2012

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“…The core functional layer of the breathable barrier fabrics is the waterproof and breathable membranes which have a clearly visible system of holes as interconnected passage‐ways and hydrophobic surface that enable them to discriminate between water droplets (diameters > 100 μm) and small molecular gases (diameters < 1 nm) in order to allow water vapor transforming from the human body to the outside while preventing the penetration of water. These waterproof and breathable membranes have been developed for the use in fabrics that are identified as the “second skin” of people to provide effective comfort under many extreme climatic conditions, and meanwhile, they can also supply protection for human body and keep warm from rugged environment, such as wind, rain, and snow . In addition, these membranes can be used not only in protective clothing but also in medical applications, bioseparation, membrane distillation, moisture regulation of buildings, catalyst carriers, tissue engineering, filtration, pharmaceutical, and humidification for the conservation of art and paper …”

Section: Introductionmentioning

confidence: 99%

Reversible photochromic nanofibrous membranes with excellent water/windproof and breathable performance

Liu

You

et al. 2018

J of Applied Polymer Sci

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Electrospun nanofibrous membranes (NFMs) with outstanding photochromic property, waterproof, and breathability have attracted considerable interest owing to their multifunctional applications in intelligent clothing, self-cleaning, and protection. However, great challenges still remain in creating such functional materials. A novel waterproof-breathable membrane with robust photochromic property is fabricated by introducing photochromic microcapsule (PM) into electrospun thermoplastic polyurethanes (TPU) membranes. Compared with the pristine TPU NFMs, the composite TPU/PM membranes are endowed with reversible photochromic properties. In addition, the composite membranes not only exhibited a water contact angle of 1378 and a milk contact angle of 1308, but also had integrated properties of modest water vapor transmittance rate of 19,278 g m 22 day 21 , high air permeability of 962 mm s 21 , low waterproofness of 2.813 kPa, and comparable tensile strength of 12.08 MPa. Furthermore, the convenience and efficiency of this fabrication process will allow for large-scale production of the multifunctional NFMs. V C 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46342.

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“…POSS has been reported to be an effective filler to improve the thermal stability and mechanical properties of various polymers . Both KO Kim et al and BS Kim et al have selected POSS to modify the material for getting outstanding properties, such as hydrophobicity and for suppression of thermal decomposition .…”

Section: Introductionmentioning

confidence: 99%

PVA grafted POSS hybrid for high performance polyvinyl alcohol films with enhanced thermal, hydrophobic and mechanical properties

Liu

Xu³

et al. 2018

Polymer Composites

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As one kind of novel nanomaterial, polyhedral oligomeric silsesquioxane (POSS) can improve the thermal stability, water resistance, and mechanical properties of the composites when introduced into a polymer matrix. In this work, we carried a novel method to fabricate polymeric nanocomposite films from poly(vinyl alcohol) (PVA) by grafting octa(−chloropropyl) POSS using sodium hydroxide (NaOH) as a catalyst. Fourier transform infrared (FTIR) and 1H nuclear magnetic resonance (1H NMR) spectral analysis confirmed the structure of POSS‐graft‐PVA (POSS‐g‐PVA) nanoparticles. For the cast nanocomposite films, transmission electron microscopy (TEM) micrographs revealed that good POSS dispersion/distribution into PVA matrix was achieved, leading to substantial improvement of mechanical properties, reduced water absorption, and enhanced thermal stability. The chemical grafting of PVA on the nanoparticles plays an important role in improving these properties compared with conventional filled composites. POLYM. COMPOS., 40:2768–2776, 2019. © 2018 Society of Plastics Engineers

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Transition behaviors and hybrid nanofibers of poly(vinyl alcohol) and polyethylene glycol–POSS telechelic blends

Cited by 32 publications

References 38 publications

Enhanced mechanical properties and pre-tension effects of polyurethane (PU) nanofiber filaments prepared by electrospinning and dry twisting

Enhanced mechanical properties and pre-tension effects of polyurethane (PU) nanofiber filaments prepared by electrospinning and dry twisting

Reversible photochromic nanofibrous membranes with excellent water/windproof and breathable performance

PVA grafted POSS hybrid for high performance polyvinyl alcohol films with enhanced thermal, hydrophobic and mechanical properties

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