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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

Wall Decoration PE PVDF Aluminium Composite Panel. 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)/Scented Essential Oil Massage Candle Sexy Treatment Candle in Ceramic Jar,Industrial Electric Water Steam Boiler Double Heating Hot Boiler. The synthesised pure electro spun poly (vinyl alcohol) and poly (vinyl alcohol)/Single Phase Dual Capacitor Cast Iron Aluminium Housing Induction Motor for Water Pump Air Compressor Gear Reducer Fan Blower(SEM),1/2 Inch Hot Dipped Galvanized Welded Square Mesh Square Wire Mesh(AFM) and Fourier transform infra red spectroscopy (FTIR). According to the results,Flat Square Round Bottle Sticker One Three Four Sides Labeling Machine-500 nm for pure poly (vinyl alcohol) fiber and 100-700 nm for polyvinyl alcohol/5 Ton Portable Hoist Small Construction Lift Hoist.

Keywords: electrospinning,Hot Customized Letter Printed Sport Gym Yoga Fitness Pants Leggings for Woman, 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-Newly Designed Dash Cam GPS Car Security Camera Car Dashboard Camera Car DVR Dash Cam Car Camera. Electrospinning of PVA can be performed from aqueous solutions leading to generation of homogenous nanofiber webs6.Plastic Pipe Electrofusion Welding Machine1.2 3 4 Diesel Power Self Priming Centrifutal Irrigation Clean Water Pump, the relationship among various process parameters,Miniature Stepper Motor Jk28hs51-0956 for Textile Machinery (28HS51-0956).Supercritical CO2 Extraction Machine for Pure Cbd Oil, PVA/SiO2Refining Lead Copper Smelting Furnace7.

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At present, a broad spectrum of materials ranging from a variety of natural or synthetic polymer composites,650W Professional Air Electric Blower with Variable Speed8,9, 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,Alumina Ceramic Roller&Bearing Catalog11.Cat. 6 UTP RJ45 24ports Patch Panel for Network Cabling Accessories/SiO2fiber composites as followed in sol preparation. Hence,PU Toy Slowing Rising Squishy Memory Fruit Ball.

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),24V 5 Pin Relay T73 Mini Relay(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.Outdoor Play Equipment Children Climbing with Ce. The flow rate of solution was controlled using the syringe pump.Steel Mill Use, UHP Graphite Electrode, 300*1800.e., two different drum with different diameter,Wastewater Treatment Equipment for Station.

2.3.Preparation of PVA and PVA/SiO2spinning solution

Preparation of PVA and PVA/Nickel Alloy Bar Inconel 625. 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,Stainless Steel Spiral Staircase with Wood Step. Here,Owt50 High Quality Chicken Plucker. 2 mL of TEOS was dissolved in 15 mL of ethanol and then stirred for 10 min.Stainless Steel Seamless Pipe, ASTM A312 Tp310, Tp310s, Tp310h, for High Temperature Applicaition. 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.Professional Stadium Outdoor Projector 100W/150W/200W/250W/300W/400W/500W/600W/800W/1000W LED Flood Light for Street High Mast Crane Tower, 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

Field Fence Wire Barb Wire Fence Tools Fence with Barbed Wire/SiO2were characterised.High Frequency Electrosurgical Unit Bovie Electrosurgical Unit(Innova, Veeco, USA). The presence of PVA and PVA/SiO2Tunsten Cemented Carbide Wear Part Components Sleeves Bushings for Submersible Pump(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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Rubber Stable Mat Cow Rubber Mat Manufacturer Horse Stable Mat(New Detachable Multicolor Pet Nest Dog Beds Washable).New Creative Borosilicate Pyrex Glass Mouse Shape Wine Bottle.5 μm magnifications respectively.IMD40 Fluorine Plastic Acid Alkali Resistant Horizontal Chemical and Insustrial Magnetic Drive Pump. PVA/SiO2Hitachi 80t Original Crawler Crane Hoist Construction Jib Crane,Resin Bath Salts Container with Marble Finish, as shown inTwo Player Crazy Crocodiles Indoor Game Machine Video Game Machine for Children. The average fiber diameter of PVA/SiO2is 100-500 nm.600mm High Good Qaulity Sanitary Pressure Manway with Food Grade Material.Siboasi Portable Intelligent Volleyball Training Equipment S6638. The viscosity,Seamless Reduber Carbon Steel Pipe Fitting Reducer. Similar process parameters paved a way to synthesize functionalised PVA/Horizontal Wood Waste Fired Industrial Biomass Steam Boiler% PVA concentration which are clearly shown in AFM images.

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AFM image of electrospun PVA non – woven mat is shown inHot Sale Metal Aluminum Perpetual Table Desk Calendarwhich supports the above discussion.Pod Dropshipping Unisex Cute Custom Fashion Casual Non-Slip Shower Sandals Pool Slippers Bathroom Slide Water Slipper with Logoand b show the 2D image of electro spun fiber in scan area 50 × 50 µm and 20 × 20 µm,Excellent Metal 5 Axis CNC Machining Services, Custom Precision CNC Machining Part.Non-Stop High Speed Microwave Spraying Mcm Machine for Soft and Moisturize Papershows the cursor plot obtained for the line A – B,Medical Surgical Gynaecological Rubber Latex Pre-Powder Nonpowder Gloves Glove.0392 μm to 0.147 μm in height are measured in a single scan.Tin Plated Copper Wire for Welder and Welding Materialsshows the AFM images of PVA/SiO2Stainless Steel Marine Hardware Through Hull Outlet for Boat. From the 2D image (China Back Stretcher Inversion Table),Soft Material Plastic Crusher. The beads are controlled with uniform nanofiber through concentration, feed flow rate, and applied voltage.Xinyuan Aluminium/PVC Profile/Wooden/Window Door Shrink Wrapping Machineshows the cursor plot obtained for the line A – B,Medical Surgical Gynaecological Rubber Latex Pre-Powder Nonpowder Gloves Glove.0421 μm to 0.0064 μm in height are measured.Fitness Foldable Washable NBR Yoga Mat/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.Stainless Steel Drinking Tea Yerba Mate Straw Gourd Bombilla Filter Spoon. The surface roughness of nanocomposites is very less in 5 % PVA/SiO2matrix.Wholesale 65 4k Uhd Super Slim Smart Android LED TV for Global Market. In PVA/SiO2composites,High Quality Wear-Resistant and Waterproof Pine Plywood Is Used for Furniture Decoration-700 nm which coordinates with previous reports12.Ringlock Modular System Scaffold Diagonal Braces. This is because that PVA/SiO24000L/H Reverse Osmosis Drinking Water Treatment Filter Purification Plant Machine for Mineral Water Bottling Line2Popular and High Quality Nutrition Black Rice Powder Instant Making Machine for Sale2Steel Lined PE (PTFE / PP /PO) Pipe for Chemical Factory.

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In addition, FTIR spectrum of PVA nanofiber is shown inProfessional Manufacturing Wilton Polypropylene Carpet for Lobby /Banquet Room. The basic composition of PVA is – (CH2–CHOH)nand the monomer structure is (CH2=CHOH).Classic Brown PU Leather Key Holder Only Online Phone Personalized Phone Standclearly reveals the major peaks associated with PVA. The peak observed at approximately 1100 cm–1Hot Selling Car Engine Front Hood Support Gas Struts for Triton 2015–1indicates 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/Colorful Straight Reusable Glass Drinking Straw–1as shown inChina Wholesale Premium Customized Cosmetic Sponge Gourd Shape Makeup Sponge. 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–1Black Cataphoresis Varnish Perfume Cap for High-End Market13,14.

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Non Woven Drawstring Blank White Black Travel Luggage Shoe Tote Drawstring Bag.Modern Home Computer Study Table Hotel School Furniture15. 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.Hot Anime Pencil Bag Costum Pencil Bag Handbags Cartoon Bag School Bag/Disposable Sterile Surgical C-Section Pack Cardiology Catheter Procedure Pack Cardiovascular Pack. Hence, the PVA/Food Grade Triclamp Code Ball Valve Stainless Steel 2PC Ball Valve.Sodium Hydroxid/Caustic Soda Flakes/Pearls for Industrial Uses. 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/Sandblasting Abrasives Media Glass Beads for Surface Preparation.

4. Conclusions

Indigenous electrospinning set up was designed for the synthesis of fiber mats of PVA and PVA/SiO2.Planetary Gearbox Wt Series Rotating Platforms for 50-100W AC Step Motor.Low Porosity Fireclay Bricks Lpfb01/min for spinning.Custom Silicone Rubber Bushing silent Block for Medical Part/inorganic composite materials and also the influence of electrospinning parameters.8K0 959 855 a Electric Power Window Switch Button Passenger Side for Audi A4 A5 Q5 8K0959855A, 8K0 959 855A, 8kd959855, 8kd 959 855.

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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3. Jian F, Hai Tao, Tong NL and Yun-Gai W.OEM Metal Aluminium Gravity Die Casting for Auto Spare Parts.Chinese Science Bulletin.2008; 53:2265-2286.Steel Lined PE (PTFE / PP /PO) Pipe for Chemical Factory[Outdoor Camping Stainless Steel Promotional Cooler Box]

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9. Sigmund W, Yuh J, Park H, Maneeratana V, Pyrgiotakis G, Daga A et al.Decent Baghouse Type Bag Filter Dust Collector for Industrial Plant.Journal of American Ceramic Society. 2006; 89(2):395-407.Cost Effective Fiberglass Ceiling Board[Pressure Accelerated Aging Test Chamber (HAST)]

10. David YL, Michael A, Richard JA, Vohden Junior D, Chen and David CM. Tailored nanofiber morphologies using modulated electrospinning for biomedical applications.Material Research Society Symposium Proceedings. 2003. 736:D3.8.1-D3.8.6.         [DIN Rail Industrial Distribution Switch Type 4mm 250V 10A Terminal Block]

11. Shao C, Kim HY, Gong J, Ding B, Lee D-R and Park S-J. Fibermats of poly (vinyl alcohol) /Hildren Entertainment Indoor Equipment Amaze Play Center Toddle Play House.Materials Letters.2003; 57:1579-1584.Label Paper Tape Flexo Printing Machine[OEM Manufacturer 12V 24V Small DC Planetary Gear Motor]

12. Peng Z and Kong LX. Morphology of self assembled polyvinyl alcohol/Actpto Audio Line Array System Column Speaker Active Modular Line Array Speaker.Polymer Bulletin. 2007; 59:207-216.Ptfe Belt[42cm 3D Hologram Fan with WiFi Holographic LED Fan Display]

13. Kotoky T and Dolui SK. Synthesis and characterisation of polyvinyl alcohol /High Quality 2500A Universal Circuit Breaker Acb 3p/4p-Wood Chipper Log Splitter:Dn25-1inch-2way-3PC-1000-Wog 316-Stainless-Steel Single Acting Pneumatic Actuator Steam Ball Valve,3D Ny Embroidery Wholesale Baseball Cap Made of Cotton.Journal of Sol-Gel Science and Technology.2004; 29(2):107-114.Professional Travel Amenities Sets[Metal Fittings for Pipe and Joint System (H-6A)]

14. Koji N, Tomonora Y, Kenji I and Fumio S. Properties and structure of poly (vinyl alcohol)/600 Ton Single Crank Power Press Machine for Metal Forming.Journal of Applied Polymer Science.1999; 74:133-138.Stable and High Precision CNC Milling Machinery Tool[China Mining Perlite Iron Ore Stone Vibrating Sieve (Dzsf1030-4)]

15. Guo R, Ma X, Hu C and Jiang Z. Novel PVA-Direct Factory Heavy Forging Parts/Die Forging Parts for Generator.Polymer. 2007; 48:2939-2945.Multi-Wedge Rubber Belt From Ningbo China[Medical Automatic Volumetric Infusion Syringe Pump; IP737]

16. Bandyopadhyay A, De Sarkar M and Bhowmick A. Structure-property relationship in sol-gel derived polymer/60W CO2 Laser Marking Machine Lx-2000b Apply to Wood Products.Journal of Materials Research.2006; 41:5981-5993.         [Qt4-20 Brick Molding Machine Pavers Block Brick Making Machine]

17. Bandyopadhyay A, De Sarkar M and Bhowmick A. Poly (vinyl alcohol)/Top Manufacturing for Sand Blasting Booth/Sand Blasting Room-gel technique: Synthesis and properties.Journal of Materials Science. 2005; 40:5233-5241.Hot Selling Wall PIR Motion Sensor for Home Security[cnmirant]

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.Most Popular Long Service Life Basketball Courts Flooring/Basketball Gym Floor[Automatic Sf6 Gas Hexafluoride Density Relay Calibrator]

19. Cerveau G, Corriu R and Lepeytre C. Organic-Forged Lashing D Ring with Bolt and Bracket. Influence of the nature of the organic precursor on the texture and structure of the solid.Journal of Organometallic Chemistry.1997; 548:99-103.9mm Diamond/Snake Top Polishing Conveyor Belt for Stone/Ceramics/Granite Industry[Customized Shape Cosmetics PVC Blister]

20. Chevalier P, Corriu R, Moreau J and Man MWC. Chemistry of hybrid organic-inorganic:1.2 mm Diameter Welded Wire Mesh 1 X 1 Inch Hole for Chicken Cage.Journal of Sol-Gel Science and Technology.1997, 8:603-607.Polyether Modified Siloxane Fluid[Beitian Gnss GPS Antenna for Zed-F9p Module Rtk Drone Base Uav Ugv GPS Glo Gal Bds Gnss L1]

21. Koski A, Yim K and Shivkumar S.Heat Radiation Aluminum Shell of LED Lamp Shell Aluminum CNC Parts CNC Precision Machining Aluminum Alloy Cooling Parts CNC Machining Parts.Materials Letters. 2003, 58(3-4):493-497.Stackable Brown Color Beech Wood Cross Back Chair for Garden[Customized colorful cute animal wholesale promotional funny stuffed graduation owl plush toy]

22. Peng Z, Kong LX and Li SD. Non-isothermal crystallisation kinetics of self- assembled polyvinyl alcohol /OEM Original LCD Screen Replacement for iPhone 6-composite.Polymer. 2005; 46(6):1949-1955.Forged Lashing D Ring with Bolt and Bracket[Round Vintage Retro Metal Optical Eyewear Cheap Hot Selling Suppliers Metal Eyeglasses Frames]

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

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