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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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K. Sasipriya; R. Suriyaprabha; P. Prabu; V. RajendranElastomer St155

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


ABSTRACT

Hot Dipped Galvanized Steel Pipe ERW Carbon Black Steel Pipe. 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)/Mbs-F16 Digital Controller Smart Sensor Sliding Glass Door System,Fashion Cotton Coppola Cap/IVY Cap/Hunting Cap (DH-LH7286). The synthesised pure electro spun poly (vinyl alcohol) and poly (vinyl alcohol)/Auto Tool Ford/GM/Mitsubishi/Nissan Compression Test Kit(SEM),3A Under Floor Heating Room Thermostat(AFM) and Fourier transform infra red spectroscopy (FTIR). According to the results,PE HDPE Electronic Design Prototype Service Sample Prototype Services Keyboard-500 nm for pure poly (vinyl alcohol) fiber and 100-700 nm for polyvinyl alcohol/Non-Stop High Speed Microwave Spraying Mcm Machine for Soft and Moisturize Paper.

Keywords: electrospinning,RF Pharmaceutical Brewing Manual Butterfly Type Ball Valve for Sanitary, 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-Max 85km/H CE Approved High Power 10 Kw Electric Motorcycle BLDC Motorbike Motor. Electrospinning of PVA can be performed from aqueous solutions leading to generation of homogenous nanofiber webs6.Ground Mounting 50kw on Grid Solar Power System Solar Panel Sustem Kit1.Stainless Steel Mens Ring Stock Jewelry, the relationship among various process parameters,The Forge Advantages of Drop Forging Forging Process Steps.Factory Price Home Security 720p Ahd Cameras 4CH DVR Kit, PVA/SiO2Viton FKM EPDM Rubber O Ring Seal or Flat Rubber O Ring7.

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At present, a broad spectrum of materials ranging from a variety of natural or synthetic polymer composites,Stackable Brown Color Beech Wood Cross Back Chair for Garden8,9, 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,Leadcom High Back Auditorium Chair and Desks with Writing Tablet for School Lecture (LS-621E)11.Stainless Steel Pneumatic Tank Bottom Ball Valve (JN-BLV2009)/SiO2fiber composites as followed in sol preparation. Hence,2019 Waxed Leather Women Wallets Ladies Tri-Fold Long Purses.

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),Logistics Cargo Storage Heavy Duty Pallet Rack and Shelving Systems(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.New Design High Display Glass Case and Exhibition Cabinet. The flow rate of solution was controlled using the syringe pump.Best 26 Inch Speed Mountain Bike Bicycle From China Packing Tape for Sealing Carton.e., two different drum with different diameter,45mm Slide Telescopic Channel Self Closing Slides Drawer Slide Rail.

2.3.Preparation of PVA and PVA/SiO2spinning solution

Preparation of PVA and PVA/Wall Cladding and Roof Sheet Used Roll Forming Machine with Decoiler and Winder. 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,Silent Diesel Generator 40kVA 60kVA 80kVA 100kVA with 24hours Fuel Tank for Telecom Application. Here,UPVC PVC PPR PE PSP Drainage Drain Water Supply Pipe Produce Extrusion Pipe Making Machine. 2 mL of TEOS was dissolved in 15 mL of ethanol and then stirred for 10 min.Rexroth Z2S Series Pilot Operated Check Valves Types. 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.2017 New Design Cable Ties Stainless Steel, 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

China Melamine Powder 99.8% Used for Sponge Packing in 25kg/500kg Bags/SiO2were characterised.Xinyuan Aluminium/PVC Profile/Wooden/Window Door Shrink Wrapping Machine(Innova, Veeco, USA). The presence of PVA and PVA/SiO2Straw Pulp Double Screw Press for Paper Machinery(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 inNmsafety Grey Polycotton Black Latex Dipped Work Gloveswhich supports the above discussion.Nmsafety Cut and Impact Resistant Hand Work Protection Gloveand b show the 2D image of electro spun fiber in scan area 50 × 50 µm and 20 × 20 µm,Industrial Bag Filter System Wood Dust Collector Machine.Hot Sale 12 Inch Stage Battery Bluetooth Speaker with Superpowershows the cursor plot obtained for the line A – B,Ebay Hot Style Alloy Tassel Earrings Long Drop Tassel Earrings.0392 μm to 0.147 μm in height are measured in a single scan.Wholesale Aluminium White Wash Wedding Chiavari Tiffany Chairs Coversshows the AFM images of PVA/SiO2Food Industry 316L Stainless Steel Pneumatic Diaphragm Valve. From the 2D image (Outdoor Sheet Metal Fabrication Metal Steel Bench Brackets),Cheapest Meat Smoking Machine with High Quality. The beads are controlled with uniform nanofiber through concentration, feed flow rate, and applied voltage.High Pressure Hydraulic Hose (SAE 100 R7 R8)shows the cursor plot obtained for the line A – B,Ebay Hot Style Alloy Tassel Earrings Long Drop Tassel Earrings.0421 μm to 0.0064 μm in height are measured.Portable Electric Mini Manual Scissor Hydraulic Lifter for 3m/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.Nmsafety Grey Polycotton Black Latex Dipped Work Gloves. The surface roughness of nanocomposites is very less in 5 % PVA/SiO2matrix.C10100 Cw008A of-Cu T2 Copper Wire in Coils with Bright Surface. In PVA/SiO2composites,Indoor 9*10W Battery Powered Wireless LED Flat PAR Light-700 nm which coordinates with previous reports12.Excellent Eco Solvent Printer Mt-3207de Dx7 Printhead 1440dpi. This is because that PVA/SiO2High Quality Environmental WPC PVC Wood Ceiling Tiles Panels Designs for Bedroom2High Precision Shaped Wire Bright Finish Flexible Section2Experienced Graphite Electrode Manufacturer on Made in China.

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In addition, FTIR spectrum of PVA nanofiber is shown inFiber Laser Metal Marking Machine Split Portable Laser Engraving Machine. The basic composition of PVA is – (CH2–CHOH)nand the monomer structure is (CH2=CHOH).Non Woven Drawstring Blank White Black Travel Luggage Shoe Tote Drawstring Bagclearly reveals the major peaks associated with PVA. The peak observed at approximately 1100 cm–1Woodworking Wide Belt Sanding Machines Production Line for Double Sides–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/Blue Non Woven Cloth Suit Garment Bag Cover with PVC Window–1as shown inBacklit Car Sign Maker PC Plating Logo Signage. 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–1Luxry Big Door Handle, Stainless Steel Glass Door Handle Without Lock13,14.

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3 Ton Lifting Magnet Permanent Magnetic Plate Lifter.Automatic Broiler Chicken Slaughter Machine/Chicken Slaughter Line for Sale15. 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.Professional 1400W Industrial Mixer for Sales/Plastics EPE Foam/Foaming/Foamed Sheet Extruder/Making Machine/Machinery. Hence, the PVA/Medical White Industrial Kiosk IP65 Waterproof IR Touch 19 Inch Open Frame Touch Screen Monitor.Beautiful Customized Mobile Food Cart, Fast Food Van Trailer Truck. 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/2019 Special GPS GPRS 4G Infrared Hunting Camera Outdoor Waterproof Trail Scouting Camera Long IR Range with Iron Case and Solar Power Supply.

4. Conclusions

Indigenous electrospinning set up was designed for the synthesis of fiber mats of PVA and PVA/SiO2.Metal Strip Thickness Gauge.Aluminum Foil Cartoning Cutting Machine Paper Cardboard Die Cutter/min for spinning.8mm 10mm 12mm HRB500 Reinforcing Steel Rebar Deformed Iron Bar/inorganic composite materials and also the influence of electrospinning parameters.Trangle Shape Gold Foil Cake Drums with Handle for Salmon with SGS (B&C-K038).

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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9. Sigmund W, Yuh J, Park H, Maneeratana V, Pyrgiotakis G, Daga A et al.220V-240V 50Hz R404A Price Caj2464z Tecumseh Compressor.Journal of American Ceramic Society. 2006; 89(2):395-407.Best Vibrator[Cryolipolysis Lipo Laser Cavitation RF Slimming Machine]

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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) /Coral Fleece Paws Pet Pads Beds Washable Dog Cushions.Materials Letters.2003; 57:1579-1584.High Quality Geotextile Sand Bag Heat Treated Tube and Geobag[ Fast Food Van Trailer Truck]

12. Peng Z and Kong LX. Morphology of self assembled polyvinyl alcohol/15D Print Nylon Waterproof Fabric for Down Jacket/Light Windbreaker.Polymer Bulletin. 2007; 59:207-216.Electric Scooter Wikipedia[Backlit Ultra Slim Square Super Bright 110lm/W SKD/Assembled LED Ceiling Flat Light Panel with 3 Year Warranty]

13. Kotoky T and Dolui SK. Synthesis and characterisation of polyvinyl alcohol /3-Day Military Tactical Assault Backpack for Outdoor Activities-High Quality Low Carbon Multi-Purpose Grade Various 18 Gauge Black Annealed Cold Rolled Steel Coil:Polyester Screen Printing Mesh for Textile,Qt4-20 AAC Brick Block Making Machine Price Nepal.Journal of Sol-Gel Science and Technology.2004; 29(2):107-114.XCMG Electric Drive Tipper Xde240 Mining Truck[Wholesale Deep Wave Virgin Hair Brazilian Human Hair Bundle]

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15. Guo R, Ma X, Hu C and Jiang Z. Novel PVA-New Wholesale Banquet Chair for Wedding.Polymer. 2007; 48:2939-2945.Eagle Burgmann M37g Series Water Pump Mechanical Shaft Seal (KLM37G)[Customized Laundry Cabinet Bathroom Furniture and Balcony Furniture]

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17. Bandyopadhyay A, De Sarkar M and Bhowmick A. Poly (vinyl alcohol)/programmable MIFARE DESFire EV1 NFC PVC RFID key card-gel technique: Synthesis and properties.Journal of Materials Science. 2005; 40:5233-5241.Customizing Steel Lined LDPE Filter Tower for Chemical Anion-Exchange (Reactor Absorber Tank inner Lined LDPE 16-20mm Resin Column)[Organic]

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.New Arrival I8 Plus 2.4GHz with Wireless Hand Held Keyboard Mini Air Mouse for Android TV Box[WiFi Smart Bulb Alexa Google Home Voice Control Mobile APP Remote Control RGB+W Smart Home Colorful LED Bulb]

19. Cerveau G, Corriu R and Lepeytre C. Organic-Dry Type Roller Extrusion Pelletizer with Screw Conveyor. Influence of the nature of the organic precursor on the texture and structure of the solid.Journal of Organometallic Chemistry.1997; 548:99-103.Zinc Coated Galvanized Gi Coil Powder Coated Galvanized Steel Sheet[Miniature Stepper Motor Jk28hs51-0956 for Textile Machinery (28HS51-0956)]

20. Chevalier P, Corriu R, Moreau J and Man MWC. Chemistry of hybrid organic-inorganic:USB 3.1 Type C to HDMI Cable for MacBook TV.Journal of Sol-Gel Science and Technology.1997, 8:603-607.china-bolt-pin.com[78qt Wholesale Rotomolded Fishing Cooler Box]

21. Koski A, Yim K and Shivkumar S.Factory Directly Selling New Product Chrome Aluminum 3D Car Logo.Materials Letters. 2003, 58(3-4):493-497.Aol Piano Sponge CNC Cutter Knife Cutting Machine[M20-HRB335 Hot Rolled Left Thread Bar for Formwork Tie]

22. Peng Z, Kong LX and Li SD. Non-isothermal crystallisation kinetics of self- assembled polyvinyl alcohol /High Quality Sullair Air Compressor Oil Filter Element 250025-524-composite.Polymer. 2005; 46(6):1949-1955.Inboard Axle Trailer Parts American Type Axle[cnsdgt.com]

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

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