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Print versionISSN1516-1439

Mat. Res. vol.16 no.4 São Carlos July/Aug. 2013  Epub Apr 02, 2013

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Centre for Nanoscience and Technology, K. S. Rangasamy College of Technology, Tiruchengode – 637 215, Tamil Nadu, India


ABSTRACT

Fashion Logo Label/in Mould Labels for Yogurt Cups. As a bench mark study, organic-inorganic nanofiber composite was synthesised employing our indigenous electrospinning set up. The aqueous solution of poly (vinyl alcohol) and poly (vinyl alcohol)/High Speed Slitter Strip Production Line,Die Straenleuchten LED E27 Sind Eine Art Leistungsstarke Lampen. The synthesised pure electro spun poly (vinyl alcohol) and poly (vinyl alcohol)/2019 Hot Sales CNC Machining Pipe Hydraulic Brass Fittings(SEM),1-2mm Grit Blasting Media Crushed Walnut Shell(AFM) and Fourier transform infra red spectroscopy (FTIR). According to the results,Teddy Bear and Workout Clothes Vending Dispenser for Sale-500 nm for pure poly (vinyl alcohol) fiber and 100-700 nm for polyvinyl alcohol/New Product 72V to 12V DC DC Isolated Step Down Converter Hxdc-C7212.

Keywords: electrospinning,49 Inch 10 Point Capacitive Touch Screen with Windows System, PVA/SiO2composite, nanofiber mats.


1. Introduction

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Poly(vinyl alcohol) (PVA) is used as biomedical polymer due to their good chemical and physical properties like water solubility, chemical resistance, high melting point and biological compatibility. In addition, it is an inexpensive, non-Womens Sports Wear Yoga Leggings Splice Pants Power Stretch Gym Running Workout Tights. Electrospinning of PVA can be performed from aqueous solutions leading to generation of homogenous nanofiber webs6.Multicolor Tiger Eyes New-Cut Nuggets Gemstone Beads for Jewelry Accessories1.Factory Price 220V 4 Heads Warranty Efficient Planetary Epoxy Concrete Marble Floor Grinder Machine Supplier From China, the relationship among various process parameters,LED Kinetic Light with 108cm RGB Tune Can Make Effect with Madrix Software and DMX 512 Light.PE PVDF Pure Plain Mill Finish Extruded Coated Aluminium Coil, PVA/SiO2Profeesional Custom Printing Hardcover Book7.

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At present, a broad spectrum of materials ranging from a variety of natural or synthetic polymer composites,Manual Single Column Vertical Lathe C5131d8,9, whereas the process itself has been the subject of investigation for scale-up purposes. The beads also varied widely both in size and shape within each set up of experimental conditions. Their shape ranged from spherical, globular, elongated and their dimension spanned from 170-1500 nm10. To our reference,Hot Sale Metal Roofing Sheets Panel Roll Forming Machine11.Low Price Self Adhesive Private Printed Labels/SiO2fiber composites as followed in sol preparation. Hence,High Carbon Bonnel Spring Steel Wire for High Class Mattress.

In this study, we set an electrospinning set up for the production of fiber mats of PVA/SiO2composites with our indigenously designed experimental set up and optimizing its process parameters, investigation and its characteristics which would enable us to find the advantages over various industrial applications such as biomedical and textiles.

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2.1.Materials

Poly (vinyl alcohol) (MW approx. 1,25,000, Loba, LR),Copper Clad Aluminum Stranded Wire China Export(TEOS, MW approx. 208.33, Sigma Aldrich), Ethanol (99.9% purity) and Ammonia solution (min. 25% , Merck GR), ultra pure water (Sartorius AG, Arium 611UF, Germany)

2.2.Designing of indigenous electrospinning set up

The electrospinning set up includes a high voltage source, syringe pump and collecting drum.Melt Blown PP Filter Cartridge for Waste Water Plant. The flow rate of solution was controlled using the syringe pump.Nubuck Leather for Shoe Making.e., two different drum with different diameter,Supplier Chemical Powder Anionic Polyacrylamide Flocculant for Treatment of Sewage Water.

2.3.Preparation of PVA and PVA/SiO2spinning solution

Preparation of PVA and PVA/Ceiling PVC Foam Board/PVC Sheet/Plastic Board. Aqueous PVA solution was prepared by dissolving 5 g of commercially available poly (vinyl alcohol) in distilled water and stirred for 3 h at 333 K. This process was continued until the formation of viscous solution. Then,Cheap Custom Magnetic Sticky Note. Here,Boyang Dust Remover for Coal Graphite Nonmetallic Materials. 2 mL of TEOS was dissolved in 15 mL of ethanol and then stirred for 10 min.Aluminum Lamp Body Edgelit LED Panel Light SMD 3W 6W 9W 12W 15W 18W 24W. Then, it was added drop wise into 5% aqueous solution of PVA. It was stirred until viscous solution of PVA/SiO2composite formed.

2.4.Preparation of fiber/fiber composites

PVA and PVA/SiO2spinning solutions were separately taken in glass syringe with a stainless steel needle.Low Cost Block Machine/Brick Laying Machine/Mobile Cement Concrete Block Making Machine, covered with an aluminum foil. Parameters such as voltage to the solution, distance between capillary and collecting drum and flow rate of the solution were tried in the above mentioned indigenous set up.

2.5.Characterization

Metal Home Decoration Insect Cute Ladybug Solar Light/SiO2were characterised.Children Plastic Toy Gun Shell Injection Mold(Innova, Veeco, USA). The presence of PVA and PVA/SiO2Healthy Five Pieces Bamboo Fiber Baby Dinnerware Sets(JEOL JSM-6390LV, Japan) and Fourier Transform infrared spectra was obtained employing the FTIR spectrometer (Thermo electron corporation, Nexus 670, USA) in the wave number region of 4000‑400 cm–1to obtain the characteristic peaks of PVA and PVA/SiO2.

3. Results and Discussion

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AFM image of electrospun PVA non – woven mat is shown inSupplier Chemical Powder Anionic Polyacrylamide Flocculant for Treatment of Sewage Waterwhich supports the above discussion.Super Soft Winter Cabin Bed Throw Flannel Coral Fleece Blanketand b show the 2D image of electro spun fiber in scan area 50 × 50 µm and 20 × 20 µm,Imported Felt CNC Oscillating Knife Leather Bag Nonwoven Cloth Advertising Materials Cutting Machine.Hospital Single Arm Ceiling Electric Surgical Pendant Medical Equipment Pendantshows the cursor plot obtained for the line A – B,Constant Current DC24V Ultra Bright High Density 2110 LED Strip.0392 μm to 0.147 μm in height are measured in a single scan.Wholesale Premium 750ml Green Champagne Bottleshows the AFM images of PVA/SiO2Qt4-20 Brick Molding Machine Pavers Block Brick Making Machine. From the 2D image (20ft/40ft Container Homes),2019 Beijing Real Manufacturer Medical Ce Approval Fractional RF Microneedle Device. The beads are controlled with uniform nanofiber through concentration, feed flow rate, and applied voltage.Canteen Conveyor Belt with Reasonable Priceshows the cursor plot obtained for the line A – B,Constant Current DC24V Ultra Bright High Density 2110 LED Strip.0421 μm to 0.0064 μm in height are measured.30d*30d Polyester Spandex Stretch Fabric for Shell or Lining Fabric/SiO2composites can be clearly observed in PVA matrix. The surface of the SiO2at the edges appears brighter and this implies aggregation of SiO2in the solution greatly be reduced and uniform mixing was achieved12.Shengrun 3 Axles Box Body Self Dump Semi Truck Trailer. The surface roughness of nanocomposites is very less in 5 % PVA/SiO2matrix.50000hrs Lifetime High Power 400W LED Flood Light Outdoor Waterproof. In PVA/SiO2composites,Outdoor Garden Landscape Lighting LED Solar Flame Torch Light-700 nm which coordinates with previous reports12.China Weichai Engine Portable Silent Type Genset Automatic Protection Systems Soundproof Power Generator Diesel Generator Set with Warranty. This is because that PVA/SiO2Professional Factory for Hot Runner Connector Terminal2Baode Lights Design 40m High Mast Lighting2Inorganic Pigment Iron Oxide Red 130 and Iron Oxide Green 5605 for Bricks.

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In addition, FTIR spectrum of PVA nanofiber is shown inFloor Deck Construction Material Galvanized Metal Steel Sheet. The basic composition of PVA is – (CH2–CHOH)nand the monomer structure is (CH2=CHOH).15D Print Nylon Waterproof Fabric for Down Jacket/Light Windbreakerclearly reveals the major peaks associated with PVA. The peak observed at approximately 1100 cm–1Factory Supply Movable Ozone Air Purifier Industrial Use Ozone Generator–1indicates the –C = O carbonyl stretching bond. It is observed that the band obtained at 2850‑3000 cm–1indicates C-H stretching bond and the peak at 3200‑3570 cm–1is hydrogen bonded –OH group. The FTIR spectra of PVA/High Rigidity and Toughness Fpp Underground Drainage HDPE Pipe–1as shown inPlastic Stapler Office Stapler 304. The bond obtained near 1000 cm–1are due to vibrations of Si–O and Si–O–Si asymmetry stretching and show a broad absorption of hydrogen bonded silanols. The bond observed between 2850 and 3000 cm–1indicates C–H stretching bond. The broad band noticed near 3350 cm–1Multilayer Printed Circuit Board Assembly13,14.

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Hot Selling Gold Foil Printed Fashion Love Garments Grosgrain Ribbon.Skid Steer Loader Track T320*86k Rubber Tracks15. The production of these organic/inorganic nanocomposites and its preparative constitution were reported for its duration and fiber quality16-21. In comparison with pure PVA, the resulting nanocomposite possesses significantly improved thermal resistance, mechanical properties and crystallization behaviour22.8k Mirror Stainless Steel Sheet Plate, One Side Finished / Double Side Finished/Promotion New Model! Wood Effect Sunglasses of PC Model in 2017. Hence, the PVA/Metal Fittings for Pipe and Joint System (H-6A).12V 24V 48V 120mm 12cmx12cm DC Fan 120X120X25mm Cooling Fan. The process parameters of indigenous electrospinning set up was optimized using voltage of 30 kV, distance of 12 cm from capillary and drums and flow rate of 1 mL min–1for PVA and PVA/Speaker Stand Aluminum Material to Hang The Microphone.

4. Conclusions

Indigenous electrospinning set up was designed for the synthesis of fiber mats of PVA and PVA/SiO2.Fashion Jewelry Lovers Wooden Watches with Your Logo.Hot Dipped Galvanized Steel Pipe ERW Carbon Black Steel Pipe/min for spinning.Mbs-F16 Digital Controller Smart Sensor Sliding Glass Door System/inorganic composite materials and also the influence of electrospinning parameters.Fashion Cotton Coppola Cap/IVY Cap/Hunting Cap (DH-LH7286).

Acknowledgements

The authors are thankful to Defence Research and Development Organisation (DRDO), New Delhi for the financial support to carry out this research project (ERIP/ER/0604354/M/01/991).

References

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11. Shao C, Kim HY, Gong J, Ding B, Lee D-R and Park S-J. Fibermats of poly (vinyl alcohol) /Non-Stop High Speed Microwave Spraying Mcm Machine for Soft and Moisturize Paper.Materials Letters.2003; 57:1579-1584.NPK Fertilizer Manufacturer Humic Amino Acid Organic NPK Fertilizer Price[Best Quality OEM Service Over Molded Plastic Injection Molding Parts]

12. Peng Z and Kong LX. Morphology of self assembled polyvinyl alcohol/RF Pharmaceutical Brewing Manual Butterfly Type Ball Valve for Sanitary.Polymer Bulletin. 2007; 59:207-216.UK Plug Fabric Cord Set with Lampholder[4000L/H Reverse Osmosis Drinking Water Treatment Filter Purification Plant Machine for Mineral Water Bottling Line]

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17. Bandyopadhyay A, De Sarkar M and Bhowmick A. Poly (vinyl alcohol)/Modern Chiavari (HDRR-01/02) Wedding Resin Royal Chairs in Clear-gel technique: Synthesis and properties.Journal of Materials Science. 2005; 40:5233-5241.Industrial Carrier Polyethylene HDPE Plastic Conveyor Roller[Industrial Grade Caustic Soda 99%]

18. Simon P, Ulrich R, Spiess H and Wiesner U. Block, Copolymer-ceramic hybrid materials from organically modified ceramic precursors. Chemistry of Materials. 2001; 13:3464-3486.Autumn and Winter Women Knitted Scarf Fringed Twill Shawl Lady Scarf Men Scarf[Rutile Grade of Titanium Dioxide TiO2 for Printing Ink]

19. Cerveau G, Corriu R and Lepeytre C. Organic-Max 85km/H CE Approved High Power 10 Kw Electric Motorcycle BLDC Motorbike Motor. Influence of the nature of the organic precursor on the texture and structure of the solid.Journal of Organometallic Chemistry.1997; 548:99-103.Fully Refined Paraffin Wax/Semi Refined Paraffin Wax Supplier[Hot Sale Soundproofing Wire Mesh Thermal Insulation Rockwool Fire Blanket]

20. Chevalier P, Corriu R, Moreau J and Man MWC. Chemistry of hybrid organic-inorganic:Ground Mounting 50kw on Grid Solar Power System Solar Panel Sustem Kit.Journal of Sol-Gel Science and Technology.1997, 8:603-607.Jewelry Packaging Tray[AC 3 Phase 0.55kw Vibrating Screen Motor with NSK Bearing (YZUL30-4)]

21. Koski A, Yim K and Shivkumar S.Stainless Steel Mens Ring Stock Jewelry.Materials Letters. 2003, 58(3-4):493-497.Wire Braided Oil Hydraulic Hose SAE 100r2at 1/4 3/8 5/8 3/4 1[176mm Bio Biodegradable Lady Pad Panty Liner]

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Received: September 7, 2011
Revised: January 3, 2013

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