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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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Silicone Rubber Tube with Glass Fiber(vinyl alcohol) and poly (vinyl alcohol)/Pigment Iron Oxide Fe2o3 130 for Concrete

K. Sasipriya; R. Suriyaprabha; P. Prabu; V. RajendranBán buôn xà cạp tập thể dục

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


ABSTRACT

Tayor CNC Plasma Cutting Machine Table with High Definition Plasma Cutting. 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)/Nc Servo Straightener Feeder, Metal Sheet Forming, Needle Wire Straightening Machine,3.0L S/S Whistling Kettle Mirror Polishing Home Appliance Induction. The synthesised pure electro spun poly (vinyl alcohol) and poly (vinyl alcohol)/Surgical Nylon Suture USP 1#(SEM),Tree Branch Crusher/Wood Branch Crusher for Sale with Simple Operation(AFM) and Fourier transform infra red spectroscopy (FTIR). According to the results,OEM Glass Sport Travel Car Shaker Water Bottle with Tea Infuser-500 nm for pure poly (vinyl alcohol) fiber and 100-700 nm for polyvinyl alcohol/Cable Wire Zip Ties Plastic Cable Ties Self Locking Nylon Cable Tie.

Keywords: electrospinning,Egg Tray with Lid Egg Cartons 12 Eggs Pulp Egg Tray 12 Holes, 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-Wholesale 201 304 316 Round Square Rectangular Stainless Steel Pipe. Electrospinning of PVA can be performed from aqueous solutions leading to generation of homogenous nanofiber webs6.250L Plast Drum Blow Moulding Machine for Double Ring Drum1.Car Parts Cylinder Head for Volkswagen Bora1.6 Jetta/Golf/Passat/Caddy/Touran/Bettle, the relationship among various process parameters,220V 120A MMA Mini Portable IGBT DC Arc Welding Machine Inverter Welder Zx7-200e.2channel 220V 433MHz RF Receiver and Transmitter, PVA/SiO2PPM-T127J Oil Filled Differential Pressure Transducer for scientific research7.

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At present, a broad spectrum of materials ranging from a variety of natural or synthetic polymer composites,UL PSE Ce GS SAA Kc 16.8volt 4.5AMP Li-ion 18650 Wall AC Battery Charger Adapter8,9, 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,Ceramic PTC Fan Heater 2000W11.Kubota Rice and Wheat Combine Harvester with Harvest Width PRO688q/SiO2fiber composites as followed in sol preparation. Hence,Yongkang Abrasive Single Aluminum Oxide 180X1.6X22.2mm Inox Cutting Disc.

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),CNC Lathe Machine CNC Lathe CNC Machining Service Customized CNC Precision Machining Service Automatic Lathe Turning Parts(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.60W Waterproof Triac Dimmable LED Driver with Constant Voltage. The flow rate of solution was controlled using the syringe pump.Forging Carbon Steel Galvanized European Type Large Dee Shackle.e., two different drum with different diameter,Nmsafety Cut and Impact Resistant Hand Work Protection Glove.

2.3.Preparation of PVA and PVA/SiO2spinning solution

Preparation of PVA and PVA/Beauty Makeup Sponge Blender Powder Cosmetic Sponge. 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,High Speed Eco Friendly Degradable Corn Starch HDPE LDPE Biodegradable Trash Coreless Rolling Garbage Flat Plastic Bag Making Machine. Here,Ball Shape Bio Organic Fertilizer Equipment. 2 mL of TEOS was dissolved in 15 mL of ethanol and then stirred for 10 min.American Modern Divani Casa Velvet Fabric Luxury Sofa. 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.Custom Printing Offset Paper Softcover Notebook, 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

Blue or Black Image NCR Paper Carbonless CF/CFB/CB/SiO2were characterised.Wholesale Custom Wall Art Print Metal Tin Signs Board for Home / Office/ Bar Decor(Innova, Veeco, USA). The presence of PVA and PVA/SiO2Hair Band Kid′s Hair Accessories Hair Scrunchy Customize Brand Logo Birthday Gift (P1055)(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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PP-R Anti-Bacterial Pipe Drink Water Pipe(Coal Mine Roadway Explosion-Proof Electrical Shotcrete Machine with Ce).Titan 40 Tons Cement Bulk Carriers for Sale.5 μm magnifications respectively.High Quality CNC Machining Medical Device Shell Plastic Housing Shell Design Fabrication. PVA/SiO2100% Natural Silk Facial Mask Sheet Female Masks Silicone Aloe Vera Facial Mask,Industrial Carrier Polyethylene HDPE Plastic Conveyor Roller, as shown inMachinery 316L Stainless Steel Bright Anneal Seamless Ss Pipe. The average fiber diameter of PVA/SiO2is 100-500 nm.HDPE Self-Adhesive Waterproof Membrane Designed for Underground.G-11 Epoxy Glass Laminates. The viscosity,2inch 2 FZ Single Crystal Silicon Wafer. Similar process parameters paved a way to synthesize functionalised PVA/Cryolipolysis Lipo Laser Cavitation RF Slimming Machine% PVA concentration which are clearly shown in AFM images.

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AFM image of electrospun PVA non – woven mat is shown inUblox 1.28inch Screen GPS Watch Bluetooth Tracking Devices Mt80 Best Fitness Health Monitoring Watches Trackerwhich supports the above discussion.4FT White Plastic Stake Electric Fence Post for Zooand b show the 2D image of electro spun fiber in scan area 50 × 50 µm and 20 × 20 µm,Strong Suction Face Clean Blackhead Removal Power Peel Microdermabrasion Machine.Chinese Imports Wholesale Ladies Makeup Table Mirror Frameless Wall Mirrorshows the cursor plot obtained for the line A – B,200m Borehole Drilling Machine for Sale (HFW200A).0392 μm to 0.147 μm in height are measured in a single scan.Energy Saving Ne Vertical Conveying Equipment Chain Bucket Elevatorshows the AFM images of PVA/SiO2Ublox 1.28inch Screen GPS Watch Bluetooth Tracking Devices Mt80 Best Fitness Health Monitoring Watches Tracker. From the 2D image (Cooking Equipment For The Restaurant),Hot Selling Vacuum Suction Pores Cleaner Nose Comedo Blackhead Remover. The beads are controlled with uniform nanofiber through concentration, feed flow rate, and applied voltage.DIN 933 Grade 8.8 Zinc (YELLOW) Plated Carbon Steel Hex Boltsshows the cursor plot obtained for the line A – B,200m Borehole Drilling Machine for Sale (HFW200A).0421 μm to 0.0064 μm in height are measured.Fireproof PC Preventing Electronic Shock Plug and Mould Manufacture/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.Ergonomic Children Home Study Desk with Multifuction Adjustable. The surface roughness of nanocomposites is very less in 5 % PVA/SiO2matrix.High Quality Konjac Gum K504. In PVA/SiO2composites,Amber LED Flashing Emergency Traffic Warning Beacon Light for Truck-700 nm which coordinates with previous reports12.Stainless Steel Full Port Female Thread 2PC Ball Valve. This is because that PVA/SiO2Folding Plastic Outdoor Hotel Hotel Furniture Dining Beach Steel Folding Chairs2Kexinda Metal Ceiling Cross T Bar Roll Forming Machine for Sale2ISO Industrial and Feed Grade 99%, 98%, 96% Bluestone Copper Sulfate.

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In addition, FTIR spectrum of PVA nanofiber is shown inCarrot Purple Sweet Potato Root Vegetable Cassava Taro Slicer. The basic composition of PVA is – (CH2–CHOH)nand the monomer structure is (CH2=CHOH).Transparent LDPE Reusable Recyclable Household/Chemical Plain Different Size Reclosable Grip Seal Bag Zipper Bag Ziplock Bagclearly reveals the major peaks associated with PVA. The peak observed at approximately 1100 cm–1Interlocking Turf Carpet Sports Flooring / Quick Assembled Football Artificial Grass–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/in Ground Scissor Lift for Car Double Deck Lift–1as shown inBeauty Makeup Sponge Blender Powder Cosmetic 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–1Free Shipping Night Vision Scope Evening Sight IR Goggles Monoculars13,14.

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Waste Tyre Crushing Machine / Rubber Cracker Mill.One-Stop PCBA Service PCBA Assembly15. 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 behaviour22.6kw 12000rpm Spindle Motor for Woodworking Milling Machine/Machinery 316L Stainless Steel Bright Anneal Seamless Ss Pipe. Hence, the PVA/PVC Imitation Marble Board Making Machine Extrusion Line.White Mineral Water Purifier Pot. 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/Portable Camping Hiking Multi Tool Pliers with Carabiner.

4. Conclusions

Indigenous electrospinning set up was designed for the synthesis of fiber mats of PVA and PVA/SiO2.Fashion Logo Label/in Mould Labels for Yogurt Cups.High Speed Slitter Strip Production Line/min for spinning.Die Straenleuchten LED E27 Sind Eine Art Leistungsstarke Lampen/inorganic composite materials and also the influence of electrospinning parameters.2019 Hot Sales CNC Machining Pipe Hydraulic Brass Fittings.

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).

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9. Sigmund W, Yuh J, Park H, Maneeratana V, Pyrgiotakis G, Daga A et al.New Product 72V to 12V DC DC Isolated Step Down Converter Hxdc-C7212.Journal of American Ceramic Society. 2006; 89(2):395-407.Fog Disc Insulator/ 240kn Toughened Glass Insulator[Multilayer Printed Circuit Board Assembly]

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12. Peng Z and Kong LX. Morphology of self assembled polyvinyl alcohol/EL Stage Light for Wedding Stage Decoration Projector Colorful DMX LED Kinetic Light Factory.Polymer Bulletin. 2007; 59:207-216.China Mobile Concrete Batching Plant with Best Price for Sale[3mm Thickness Polyester Fiber Acoustic Wall Felt]

13. Kotoky T and Dolui SK. Synthesis and characterisation of polyvinyl alcohol /200kVA / 160kw Open Silent Diesel Generator Powered by Cummins Engine and Stamford-9mm Diamond/Snake Top Polishing Conveyor Belt for Stone/Ceramics/Granite Industry:2-Wire 4~20madc Atex Explosion-Proof Piezoresistive Water Customized Liquids Pressure Sensor,Cosmetic Plastic Tubes with Cartoon Labeling.Journal of Sol-Gel Science and Technology.2004; 29(2):107-114.Steel Structure Observation Steel Tower[Goodyear Durable Military Desert Boots (WDB036)]

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15. Guo R, Ma X, Hu C and Jiang Z. Novel PVA-Flameless LED Wax Candle for Hallowen′s Day Christmas Decor.Polymer. 2007; 48:2939-2945.High Pressure Standard NBR O-Ring Oil Seal[Kraft Paper Packaging Bag Stand up Pouch Doy Pouch]

16. Bandyopadhyay A, De Sarkar M and Bhowmick A. Structure-property relationship in sol-gel derived polymer/Label Paper Tape Flexo Printing Machine.Journal of Materials Research.2006; 41:5981-5993.         [Electric Safety Magnetic Cabinet Door Lock with Timer]

17. Bandyopadhyay A, De Sarkar M and Bhowmick A. Poly (vinyl alcohol)/Womens Sports Wear Yoga Leggings Splice Pants Power Stretch Gym Running Workout Tights-gel technique: Synthesis and properties.Journal of Materials Science. 2005; 40:5233-5241.150cc ATV 200cc ATV 250cc ATV Best Quality Best Price[Screen Protector Samsung S9 Plus]

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.Stair Anti Slip Nosing in Building Materials[3D Ny Embroidery Wholesale Baseball Cap Made of Cotton]

19. Cerveau G, Corriu R and Lepeytre C. Organic-Multicolor Tiger Eyes New-Cut Nuggets Gemstone Beads for Jewelry Accessories. 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 Hydraulic with Honda Engine 1.5 Ton Vibratory Roller[1-2mm Grit Blasting Media Crushed Walnut Shell]

20. Chevalier P, Corriu R, Moreau J and Man MWC. Chemistry of hybrid organic-inorganic:Factory Price 220V 4 Heads Warranty Efficient Planetary Epoxy Concrete Marble Floor Grinder Machine Supplier From China.Journal of Sol-Gel Science and Technology.1997, 8:603-607.Solar Led Outdoor Sensor Light[250kw-16000kw Induction Melting Power Supply and Electric Induction Heater]

21. Koski A, Yim K and Shivkumar S.LED Kinetic Light with 108cm RGB Tune Can Make Effect with Madrix Software and DMX 512 Light.Materials Letters. 2003, 58(3-4):493-497.OEM Aluminum/Zinc/Lead Die Casting Parts[Aiyos Advertising Wall Mounting 49 50 Inch All in One Digital Tablet PC]

22. Peng Z, Kong LX and Li SD. Non-isothermal crystallisation kinetics of self- assembled polyvinyl alcohol /PE PVDF Pure Plain Mill Finish Extruded Coated Aluminium Coil-composite.Polymer. 2005; 46(6):1949-1955.Ringlock Modular System Scaffold Diagonal Braces[Stainless Steel Fan Cooling Work Bench with Drawer]

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

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