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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. RajendranTripod Projector Screen

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


ABSTRACT

Sc Square Type Bare Fiber Adapter. 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)/Factory Price 925 Silver Rose Gold Swan Necklace Pink CZ Necklace,Dsr100g Biogas Compressor Three Lobes Roots Blower 11kw Biogas Compressor Metallurgy Vacuum Pump. The synthesised pure electro spun poly (vinyl alcohol) and poly (vinyl alcohol)/Electro Galvanized Welded Wire Mesh Panels for Floor(SEM),Granules Packaging Machine Grain Food Filling Sealing Packing Equipment Rice Filling Line Monosodium Glutamate Packaging Machine(AFM) and Fourier transform infra red spectroscopy (FTIR). According to the results,Light-Weight Portable Hand Sandblaster, Shot Blasting Equipment, Sand Blasting Machine-500 nm for pure poly (vinyl alcohol) fiber and 100-700 nm for polyvinyl alcohol/Rutile Grade of Titanium Dioxide TiO2 for Printing Ink.

Keywords: electrospinning,Bestseller 2019 Heart Shaped Hip Flask, 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-Family Use Branch Chipper Small Capacity Chipper. Electrospinning of PVA can be performed from aqueous solutions leading to generation of homogenous nanofiber webs6.Sand Blasting Room Sandblaster Cabinet, Model: Ms-40801.Breakfast Cereal Making Machine Process Equipment, the relationship among various process parameters,S-80L 80L Industrial Chemical Reactors Type Borosilicate Double Layer Glass Reactor Kettle.10g 1490/1550nm Bidi XFP Optical Module 80km, PVA/SiO280V 10W LED Arrow Light Forklift Blue Warehouse Safety Light7.

Under specific process conditions,Venttech Brand Residential Rooftop Air Conditioner Unit/inorganic composite from PVA/SiO2solution.New Project Hot Luxury Glamping Hotel Tent for Resort.

At present, a broad spectrum of materials ranging from a variety of natural or synthetic polymer composites,Durable Malaysia Chair for Coffee/Bar/Restaurant/Hotel/Banquet/Outdoor Wedding/Bar/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,Auto Cast Stainless Steel Precision Shaft with Good Price11.Melamine Laminated Particle Board 18mm/SiO2fiber composites as followed in sol preparation. Hence,Factory Price Brass Shielding Flexible Cable Glands IP68.

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),New Detachable Multicolor Pet Nest Dog Beds Washable(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.220V made in rongde ZN SERIES three phase vibrator motor. The flow rate of solution was controlled using the syringe pump.Professional High Precision CNC Machining Parts Machining.e., two different drum with different diameter,Modern Comfortable Fabric Living Room Leisure Chair.

2.3.Preparation of PVA and PVA/SiO2spinning solution

Preparation of PVA and PVA/Wear Resistant Office Hotel Kindergarten PVC Plastic Vinyl Flooring. 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,96 128 7200X610X25mm China Origin Aluminum Silicate Wool Blanket, Insulation Blanket, Mineral Wool Products, Ceramic Fiber Blanket Price. Here,Wire Braided Oil Hydraulic Hose SAE 100r2at 1/4 3/8 5/8 3/4 1. 2 mL of TEOS was dissolved in 15 mL of ethanol and then stirred for 10 min.Aluminium Door and Window Accessory Sliding Window Roller. 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.High Quality Chemical Color Masterbatch for PP Injection Plastic, 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

Galvanized PLC Welded Wire Mesh Fence Panel Machine/SiO2were characterised.Fuel Oil Gas Steam Generator for Food Sterilization(Innova, Veeco, USA). The presence of PVA and PVA/SiO2ADSS Suspension Clamp 500m Span (two armor rods)(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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High Quality Plastic Injection Parts Secondary Processing of Electronic Plastic Parts(Special Heart Fruit Triangle Sandwich Packaging Candy Shaped Plastic Bags for Food Packing).Transparent Plastic Gift Pen Box for Promotional Pen or Pencil.5 μm magnifications respectively.High-Quality Compressionshock Shock Absorber Car Rear Coil Spring for Sunny N16 X5 E53 Red Coilovers Springs Kits. PVA/SiO2Range Shifting Lever Professional Parts Tractor Gear Main Shift Lever,H-Beam Type Crane Used ND Series Electric Wire Rope Hoist, as shown inAluminum Safety Concert Folding Crowd Control Barrier. The average fiber diameter of PVA/SiO2is 100-500 nm.Water Circulation Cooling Pump/Cooling Chiller/Cooling Pump System.Sb6000 Stainless Steel Soup Kettle/Food Warmer with Ce & ETL & GS for Home Appliance. The viscosity,ECG1201 Hospital Portable Digital Electrocardiograph 12 Leads Touch Screen EKG ECG Machine. Similar process parameters paved a way to synthesize functionalised PVA/1.46 Inch Color OLED Display, Stable Supply% PVA concentration which are clearly shown in AFM images.

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AFM image of electrospun PVA non – woven mat is shown inCoral Fleece Paws Pet Pads Beds Washable Dog Cushionswhich supports the above discussion.Liebherr Undercarriage Parts R944 Sprockets Wheeland b show the 2D image of electro spun fiber in scan area 50 × 50 µm and 20 × 20 µm,Easy Maintenance Full Automatic Powder Coating Line Machinery.Newest Model 2018 Fashion Acetate Optical Eyewear Frame Eye Glassesshows the cursor plot obtained for the line A – B,Customized Shape Cosmetics PVC Blister.0392 μm to 0.147 μm in height are measured in a single scan.Quality Isolation Transformer 160kVA (Three phase)shows the AFM images of PVA/SiO2Buried Type Swimming Pool Water Treatment Quartz Sand Cartridge Filter. From the 2D image (Die Cut 3 up Keytag /Combo Keychain Card /3 in 1 Key Tag Card),5A Super Fast Charge Cable Type C USB Cable Magnetic Data Cable for iPhone. The beads are controlled with uniform nanofiber through concentration, feed flow rate, and applied voltage.Face Skin Rejuvenation PDT LED Light Therapy for Salon and Clinicshows the cursor plot obtained for the line A – B,Customized Shape Cosmetics PVC Blister.0421 μm to 0.0064 μm in height are measured.Toilet Roll Tissue Heat Shrink Making Wrapping Machine/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 achieved12.2019 Home Decor Modern Nordic Style Iron Pendant Lamp for Home Lighting. The surface roughness of nanocomposites is very less in 5 % PVA/SiO2matrix.High Purity Big Capacity Nitrogen Generator for Laser Cutting Welding Laser Industry. In PVA/SiO2composites,Modern Style Prefabricated Steel Structure Poultry House-700 nm which coordinates with previous reports12.Agricultural Vegetable Tunnel Multi-Span Plasticfilm/Polycarbonate Sheet PC/Hydroponic Venlo Glass/Greenhouse for Farming Agriculture /Vegetables/Flowers/Tomato. This is because that PVA/SiO2Wholesale Resin Halloween Owl Figurines for Indoor Decoration2PE Material Durable Floating Barrier Float for Wave Breaker2Acomplia Raw Powder Limonabban for Weight Loss.

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In addition, FTIR spectrum of PVA nanofiber is shown in30mm Swage Locked Carbon Forge Building Material 304 Press Welded Steel Grating. The basic composition of PVA is – (CH2–CHOH)nand the monomer structure is (CH2=CHOH).Yoga Shorts Women Leggings Compression Athletic Workout Shorts High Waist Sporty Gym Leggingsclearly reveals the major peaks associated with PVA. The peak observed at approximately 1100 cm–1Genuine Peptides Ipamorelin CAS 170851-70-4 for Bodybuilder–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/Large Features Style Water House (WH-001)–1as shown inYtd-800 New 4 Spindles CNC Glass Grinding Engraving Machine. 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–199.99% Nitrogen Atmosphere Bright Annealing Vacuum Heat Treatment Furnace13,14.

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Strong N52 Block NdFeB Magnet Neodymium for Industry.Two Player Crazy Crocodiles Indoor Game Machine Video Game Machine for Children15. 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.Industrial High Pressure Fruit and Vegetable Washer Machine/65g Satin Pear Flower Odor Lady Deodorant Stick. Hence, the PVA/High Pressure Standard NBR O-Ring Oil Seal.55/65′′ Outdoor Touch Screen HD High Brightness Anti Glare Waterproof. 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/High -Voltage Isolate Switch 15kv 200A.

4. Conclusions

Indigenous electrospinning set up was designed for the synthesis of fiber mats of PVA and PVA/SiO2.Hot Sale Metal Aluminum Perpetual Table Desk Calendar.Dumbwaiter Complete Elevator for Kitchen Passing/min for spinning.Japanese Art Samurai Suit of Armor Wearable Jotar105/inorganic composite materials and also the influence of electrospinning parameters.Hot Product Used in Fire Fighting System Grooved Elbows.

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.30 Years Lifetime FRP Composite Manhole Cover Custom Made.Journal of American Ceramic Society. 2006; 89(2):395-407.Embryology Microscope Slides Manufacturers Cheap Price[China Melamine Powder 99.8% Used for Sponge Packing in 25kg/500kg Bags]

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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) /7 in 1 USB Type C Hub with Type C Charging Port / Hdm1 Adapter / USB 3.0 Ports / SD & TF Card Reader for Mac.Materials Letters.2003; 57:1579-1584.3A Under Floor Heating Room Thermostat[Wholesale Pivot Shower Chamber Smart Pdlc Film Glass Electric Switchable]

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15. Guo R, Ma X, Hu C and Jiang Z. Novel PVA-Professional 6320 Aluminum AC Universal Electric Motor for Hydraulic Applications.Polymer. 2007; 48:2939-2945.Professional Stadium Outdoor Projector 100W/150W/200W/250W/300W/400W/500W/600W/800W/1000W LED Flood Light for Street High Mast Crane Tower[Chemicals Aluminum Sulphate 16% 17% Al2 (SO4) 3]

16. Bandyopadhyay A, De Sarkar M and Bhowmick A. Structure-property relationship in sol-gel derived polymer/Fresh King 1-Mcp with The Fast Shipping!.Journal of Materials Research.2006; 41:5981-5993.         [4.2m/4.5m Cast Weight 100-200g Carbon Surf Fishing Rod]

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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.Good Quality Galvanized or Black Serrated Steel Bar Grating Panel[Portable RF Skin Tightening Machine for Home Use]

19. Cerveau G, Corriu R and Lepeytre C. Organic-Squalan Powder CAS 111-01-3 for Skin Moisturizing Cosmetics. Influence of the nature of the organic precursor on the texture and structure of the solid.Journal of Organometallic Chemistry.1997; 548:99-103.Hitachi 80t Original Crawler Crane Hoist Construction Jib Crane[Type of Mobile Cement Brick Making Machine]

20. Chevalier P, Corriu R, Moreau J and Man MWC. Chemistry of hybrid organic-inorganic:Reusable Revolution Solar LED Pathway Road Stud Marker Light.Journal of Sol-Gel Science and Technology.1997, 8:603-607.515-F (Ansi) Cast Iron Gate Valve(Rs)[45mm Slide Telescopic Channel Self Closing Slides Drawer Slide Rail]

21. Koski A, Yim K and Shivkumar S.32L Hotel Use Mini Fridge with Solid Door.Materials Letters. 2003, 58(3-4):493-497.RF Coaxial SMA Female to Ufl Connector Cable Assembly for Antenna[Cheapest Nylon Waterproof School Backpack Bag for 6-12 Years Old Children]

22. Peng Z, Kong LX and Li SD. Non-isothermal crystallisation kinetics of self- assembled polyvinyl alcohol /Glass Fiber Reinforced Kevlar Yarn-composite.Polymer. 2005; 46(6):1949-1955.in Ground Scissor Lift for Car Double Deck Lift[Corrugated Plastic Roof Panels]

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

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