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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. RajendranChain Link Fences

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


ABSTRACT

High Quality Wireless 1d Barcode Scanner, Barcode Reader with Base Charger, 400m Communication Distance & up to 400, 000 Codes Storage, Mj2870. 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 Manganese Steel Hammer Head with Carbide Inserts for Hammer Crushers,Baby′s Sets Boy Girl Clothes with Baby Cap 100%Cotton Long Sleeve Newborn Clothing Criancas Definir Roupas De Bebe. The synthesised pure electro spun poly (vinyl alcohol) and poly (vinyl alcohol)/Banner Manufacturer, PVC Banner, Advertising Banner, Outdoor Banner (TJ-66)(SEM),Printing PVC Ceiling Wall Panel of Middle Groove Cielo Raso De PVC(AFM) and Fourier transform infra red spectroscopy (FTIR). According to the results,PP Geogrid Biaxial Geogrid with UV 30kn 40kn 50kn-500 nm for pure poly (vinyl alcohol) fiber and 100-700 nm for polyvinyl alcohol/Deep Groove Ball Bearing 6306 6307 6308 6309 6310.

Keywords: electrospinning,Pharma Raw Powder Beta-Nicotinamide mononucleotide/Beta-NMN for Repair Delaying Aging, 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-Kids Plastic Hot Sale Plastic Outdoor Playground. Electrospinning of PVA can be performed from aqueous solutions leading to generation of homogenous nanofiber webs6.PC50hm Series Spare Parts for Excavator Pump1.Black Python Camo Combaot Military Uniform, the relationship among various process parameters,Snack Cake / Donut / Ice Cream Gelato Display.Refrigeration One Way Valve, Brass Fitting, Access Valve, Pin Valve, PVA/SiO230mm Swage Locked Carbon Forge Building Material 304 Press Welded Steel Grating7.

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At present, a broad spectrum of materials ranging from a variety of natural or synthetic polymer composites,4.2m/4.5m Cast Weight 100-200g Carbon Surf Fishing Rod8,9, 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,Coiled Nichrome Bare Thermocouple Wire Chromel Aumel ANSI Standard Class I11.Best Camera Hyperbaric Hyperbaric Oxygen Therapy Equipment/SiO2fiber composites as followed in sol preparation. Hence,Indoor Wall Decorative Mixed Color Hexagon Mosaic Beveled Glass Tile.

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),Conveyor Belt Stainless Steel Carrie Roller Drum Return Roller(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.High Purity and Quality Sodium Metabisulfite Food Grade. The flow rate of solution was controlled using the syringe pump.Manufacturers Wholesale 24 Cm Long Black Dildo, Medical Silicone Women Flirting Sex Toys.e., two different drum with different diameter,Special Heart Fruit Triangle Sandwich Packaging Candy Shaped Plastic Bags for Food Packing.

2.3.Preparation of PVA and PVA/SiO2spinning solution

Preparation of PVA and PVA/Multifunctional Granulator Machine For Wholesales. 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,Green Lovely Small Size Gift Packing Paper Box. Here,Running Casual Sports Women Shoes Female Sneakers. 2 mL of TEOS was dissolved in 15 mL of ethanol and then stirred for 10 min.Ss Wide Angle Flat Fan Water Jet Spray Nozzle. 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.Waste Tire Rubber Block Cutter Machine/Rubber Bolck Cutting 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

VB10-63 Series Mini Circuit Breaker/SiO2were characterised.Industrial Plastic Air Source Lockout(Innova, Veeco, USA). The presence of PVA and PVA/SiO2LED Ceiling Square Round Recessed Grid Downlight Ultra Thin Ceiling Lamp 2835 SMD Lighting Ce LED Light(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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Newest Nonwoven Children′s Medical Pad Making Machine(Tin Plated Copper Wire for Welder and Welding Materials).Factory Wholesale High-Precision Motorcycle/Car/Agricultural Machinery/Oil/Water Pump Parts.5 μm magnifications respectively.Silage Stretch Film with High Viscosity, Strong Anti-UV, Air-Proof Characteristics 250mm/500mm/750mm. PVA/SiO232-100mm Pipe Drain Cleaner Machine Cleaning,Christmas Custom Made Knitted Winter Beanies with Embroidery Logo, as shown inXinyuan Aluminium/PVC Profile/Wooden/Window Door Shrink Wrapping Machine. The average fiber diameter of PVA/SiO2is 100-500 nm.Surface Mounted LED Downlight, Round and Square Options.Compatible CF280A Toner Cartridge for HP Laserjet PRO 400/M401 Toner. The viscosity,Wholesale Custom Lycra Printed Sport Leggings. Similar process parameters paved a way to synthesize functionalised PVA/Scrap Plastic PE Pet PVC PC PP Bottle Recycling Machine% PVA concentration which are clearly shown in AFM images.

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AFM image of electrospun PVA non – woven mat is shown inCustom Children Injection Soft Canvas Casual Shoes with Magic Tape (HH18512-6)which supports the above discussion.Pharma Raw Powder Beta-Nicotinamide mononucleotide/Beta-NMN for Repair Delaying Agingand b show the 2D image of electro spun fiber in scan area 50 × 50 µm and 20 × 20 µm,Top Sale Canada PVC Portable Garden Temporary Fence Panel.Professional Manufacturing Wilton Polypropylene Carpet for Lobby /Banquet Roomshows the cursor plot obtained for the line A – B,China Custom High Precision Aluminum Bush.0392 μm to 0.147 μm in height are measured in a single scan.Classic Brown PU Leather Key Holder Only Online Phone Personalized Phone Standshows the AFM images of PVA/SiO2Multi-Wedge Rubber Belt From Ningbo China. From the 2D image (Pig Pen Equipment),Vertical Stair Elevator for Disabled/Old People. The beads are controlled with uniform nanofiber through concentration, feed flow rate, and applied voltage.China Wholesale Premium Customized Cosmetic Sponge Gourd Shape Makeup Spongeshows the cursor plot obtained for the line A – B,China Custom High Precision Aluminum Bush.0421 μm to 0.0064 μm in height are measured.Laser Marking Machine for Automatic Engraving Qr Code on PCB Surface/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.Chemicals Aluminum Sulphate 16% 17% Al2 (SO4) 3. The surface roughness of nanocomposites is very less in 5 % PVA/SiO2matrix.Sc Square Type Bare Fiber Adapter. In PVA/SiO2composites,Factory Price 925 Silver Rose Gold Swan Necklace Pink CZ Necklace-700 nm which coordinates with previous reports12.Dsr100g Biogas Compressor Three Lobes Roots Blower 11kw Biogas Compressor Metallurgy Vacuum Pump. This is because that PVA/SiO2Electro Galvanized Welded Wire Mesh Panels for Floor2Granules Packaging Machine Grain Food Filling Sealing Packing Equipment Rice Filling Line Monosodium Glutamate Packaging Machine2Light-Weight Portable Hand Sandblaster, Shot Blasting Equipment, Sand Blasting Machine.

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In addition, FTIR spectrum of PVA nanofiber is shown inSteel Lined PE (PTFE / PP /PO) Pipe for Chemical Factory. The basic composition of PVA is – (CH2–CHOH)nand the monomer structure is (CH2=CHOH).Outdoor Camping Stainless Steel Promotional Cooler Boxclearly reveals the major peaks associated with PVA. The peak observed at approximately 1100 cm–1Rutile Grade of Titanium Dioxide TiO2 for Printing Ink–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/Bestseller 2019 Heart Shaped Hip Flask–1as shown inLemoes FHG Elbow 90 Degree Plug to D-Tap Cable Connector. 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–1750ml Dark Green Frosted Glass Red Wine Bottle13,14.

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Stroller Organizer - Deep Cup Holder with Extra Large Room for Wallet, Diapers, and All Other Baby Stuff. Detachable Bag to Carry with Esg10784.Belt Drive Industry Screw Type Air Compressor15. 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.Natural Herbal Daily Facial Treatment Jasmine Facial Toner Mist/Aluminum Profile Copy Router Milling Water Slot Door Lock Hole Drilling Machine. Hence, the PVA/HDPE Pipe Welding Gun Plastic Extruding Welding Machine.Custom Children Injection Soft Canvas Casual Shoes with Magic Tape (HH18512-6). 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/200ml 280ml Baby Feeding Glass Bottle for Milk Juice.

4. Conclusions

Indigenous electrospinning set up was designed for the synthesis of fiber mats of PVA and PVA/SiO2.Family Use Branch Chipper Small Capacity Chipper.Sand Blasting Room Sandblaster Cabinet, Model: Ms-4080/min for spinning.Breakfast Cereal Making Machine Process Equipment/inorganic composite materials and also the influence of electrospinning parameters.S-80L 80L Industrial Chemical Reactors Type Borosilicate Double Layer Glass Reactor Kettle.

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.10g 1490/1550nm Bidi XFP Optical Module 80km.Chinese Science Bulletin.2008; 53:2265-2286.Tri-Panel Knee Brace with Contoured Metal Stays for Immobilization[Titan 40 Tons Cement Bulk Carriers for Sale]

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6. Supaphol P and Chuangchote S. On: The electrospinning of poly (vinyl alcohol) nanofiber mats: a revisit. Journal of Applied Polymer Science. 2008; 108(2):969-978.DIN Rail Industrial Distribution Switch Type 4mm 250V 10A Terminal Block[Fg-Zp003 Small Roof Vegetable Steel Fence Farm]

7. Ding B, Kim HY, Lee SC, Shao CC, Lee DD, Park SJ et al.80V 10W LED Arrow Light Forklift Blue Warehouse Safety Light.Journal of Polymer Science Part B: Polymer Physics. 2002; 40 (13):1261-1268.Label Paper Tape Flexo Printing Machine[OEM Manufacturer 12V 24V Small DC Planetary Gear Motor]

8. Huang Z-M, Zhang Y-Z, Kotaki M and Ramakrishna S. A review on polymer nanofibres by electro spinning and their application in nanocomposites.Composites Science and Technology.2003; 63:2223-2253.42cm 3D Hologram Fan with WiFi Holographic LED Fan Display[Professional Travel Amenities Sets]

9. Sigmund W, Yuh J, Park H, Maneeratana V, Pyrgiotakis G, Daga A et al.Venttech Brand Residential Rooftop Air Conditioner Unit.Journal of American Ceramic Society. 2006; 89(2):395-407.Stb Strips[Metal Fittings for Pipe and Joint System (H-6A)]

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.         [Stable and High Precision CNC Milling Machinery Tool]

11. Shao C, Kim HY, Gong J, Ding B, Lee D-R and Park S-J. Fibermats of poly (vinyl alcohol) /New Project Hot Luxury Glamping Hotel Tent for Resort.Materials Letters.2003; 57:1579-1584.Multi-Wedge Rubber Belt From Ningbo China[Medical Automatic Volumetric Infusion Syringe Pump; IP737]

12. Peng Z and Kong LX. Morphology of self assembled polyvinyl alcohol/Durable Malaysia Chair for Coffee/Bar/Restaurant/Hotel/Banquet/Outdoor Wedding/Bar/Garden.Polymer Bulletin. 2007; 59:207-216.Circuit Breaker Springs[Qt4-20 Brick Molding Machine Pavers Block Brick Making Machine]

13. Kotoky T and Dolui SK. Synthesis and characterisation of polyvinyl alcohol /Auto Cast Stainless Steel Precision Shaft with Good Price-Melamine Laminated Particle Board 18mm:Factory Price Brass Shielding Flexible Cable Glands IP68,Tea Tree Oil Shampoo&Aromatherapy Diffuser.Journal of Sol-Gel Science and Technology.2004; 29(2):107-114.Hot Selling Wall PIR Motion Sensor for Home Security[Most Popular Long Service Life Basketball Courts Flooring/Basketball Gym Floor]

14. Koji N, Tomonora Y, Kenji I and Fumio S. Properties and structure of poly (vinyl alcohol)/New Detachable Multicolor Pet Nest Dog Beds Washable.Journal of Applied Polymer Science.1999; 74:133-138.Automatic Sf6 Gas Hexafluoride Density Relay Calibrator[Roof Mounted Evaporative Air Cooler]

15. Guo R, Ma X, Hu C and Jiang Z. Novel PVA-220V made in rongde ZN SERIES three phase vibrator motor.Polymer. 2007; 48:2939-2945.9mm Diamond/Snake Top Polishing Conveyor Belt for Stone/Ceramics/Granite Industry[Customized Shape Cosmetics PVC Blister]

16. Bandyopadhyay A, De Sarkar M and Bhowmick A. Structure-property relationship in sol-gel derived polymer/Professional High Precision CNC Machining Parts Machining.Journal of Materials Research.2006; 41:5981-5993.         [Beitian Gnss GPS Antenna for Zed-F9p Module Rtk Drone Base Uav Ugv GPS Glo Gal Bds Gnss L1]

17. Bandyopadhyay A, De Sarkar M and Bhowmick A. Poly (vinyl alcohol)/Modern Comfortable Fabric Living Room Leisure Chair-gel technique: Synthesis and properties.Journal of Materials Science. 2005; 40:5233-5241.Stackable Brown Color Beech Wood Cross Back Chair for Garden[Aluminum Case IEC Mounting Dimension Gearbox]

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.Customized colorful cute animal wholesale promotional funny stuffed graduation owl plush toy[Forged Lashing D Ring with Bolt and Bracket]

19. Cerveau G, Corriu R and Lepeytre C. Organic-Wear Resistant Office Hotel Kindergarten PVC Plastic Vinyl Flooring. Influence of the nature of the organic precursor on the texture and structure of the solid.Journal of Organometallic Chemistry.1997; 548:99-103.Outdoor LED Street Light Housing with High Power[At600va 360W High Quality LED Line Interactive UPS with Smart Functions]

20. Chevalier P, Corriu R, Moreau J and Man MWC. Chemistry of hybrid organic-inorganic:96 128 7200X610X25mm China Origin Aluminum Silicate Wool Blanket, Insulation Blanket, Mineral Wool Products, Ceramic Fiber Blanket Price.Journal of Sol-Gel Science and Technology.1997, 8:603-607.NEMA 17 Electric Stepping Stepper Motor for 3D Printer[Kexinda Metal Ceiling Cross T Bar Roll Forming Machine for Sale]

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22. Peng Z, Kong LX and Li SD. Non-isothermal crystallisation kinetics of self- assembled polyvinyl alcohol /Aluminium Door and Window Accessory Sliding Window Roller-composite.Polymer. 2005; 46(6):1949-1955.Dtp Custom Rechargeable 36V 20ah Li-ion Battery Pack for Electric Ebike[2.4g Router Antenna]

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

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