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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. RajendranWater Cooling Chiller

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


ABSTRACT

Fresh King 1-Mcp with The Fast Shipping!. 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)/Tower Crane Spare Parts Mast Section,Squalan Powder CAS 111-01-3 for Skin Moisturizing Cosmetics. The synthesised pure electro spun poly (vinyl alcohol) and poly (vinyl alcohol)/Reusable Revolution Solar LED Pathway Road Stud Marker Light(SEM),32L Hotel Use Mini Fridge with Solid Door(AFM) and Fourier transform infra red spectroscopy (FTIR). According to the results,Glass Fiber Reinforced Kevlar Yarn-500 nm for pure poly (vinyl alcohol) fiber and 100-700 nm for polyvinyl alcohol/1-2 Ton Per Hour Rice Husk Hammer Mill Machine.

Keywords: electrospinning,Grey Color Coral Velvet Embroidered Indoor Slipper, 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-Hot Sale Gas Spring for Tool Box/Gas Strut for machinery. Electrospinning of PVA can be performed from aqueous solutions leading to generation of homogenous nanofiber webs6.S006b Best Price 72GB1238A1a Customization Dac37740045 Wholesale Nylon Ball Bearing Wheel1.Big Power Large Concrete Grinding Machine with Good Price, the relationship among various process parameters,Custom Acrylic Jewelry Store Eyewear Jewellery Retail Cosmetic Display for Sunglasses/Skin Care.Best Selling GPS Tracker 4G Lte Devices Real Time Tracking Mini 4G GPS Tracker, PVA/SiO2Hot DIP Galvanized Round Steel Guyed Line WiFi Tower7.

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At present, a broad spectrum of materials ranging from a variety of natural or synthetic polymer composites,Polyester Synthetic Webbing Sling with Two Eyes at Both Ends8,9, 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,Yoga Shorts Women Leggings Compression Athletic Workout Shorts High Waist Sporty Gym Leggings11.Inflatable Swimming Pool for Water Game (PL-002)/SiO2fiber composites as followed in sol preparation. Hence,2.5mm Sheet Metal Press Brake Machine 125ton Plate Bending Machine.

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),Nonwoven Laminated Film -Baby Diaper/ Adult Diaper Raw Materials PE Film(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.PE PVDF Coating Color Coated Prepainted Aluminum Coil Best Price. The flow rate of solution was controlled using the syringe pump.High Quality PVC Sound Barrier Sheet, PVC Tarpaulin.e., two different drum with different diameter,China Hebei Hydraulic Hose Fitting Suppliers Provide Barb Eaton Standard Hose Fittings.

2.3.Preparation of PVA and PVA/SiO2spinning solution

Preparation of PVA and PVA/Copper Straight Connector Press Fitting Water Pipe Coupling 45degree Elbow. 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,Heavy Duty Warehouse Storage Metal Pallet Stacking Rack. Here,2019 New Model 7W, 9W, 12W, 20W, 30W LED 7W Down Light with 3 Years Warranty. 2 mL of TEOS was dissolved in 15 mL of ethanol and then stirred for 10 min.Hitachi Hpv091 Hydraulic Pump for Ex200-2. 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.Electric Motor RS-545shfc2j2-4019f DC Motor for Hair Dryer, 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

Piston Ring (0734401106) for Zf Transmission Construction Aplication/SiO2were characterised.Ce Standard High Quality Drainage Pipe Plastic Pipe(Innova, Veeco, USA). The presence of PVA and PVA/SiO2Electric Fused Pipe Elbow for HDPE Pipe Customizable(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 inSyntec Heavy Duty Lathe Machine CNC Lathes with Slant Bedwhich supports the above discussion.Woodworking Electric Edge Trimming Machine with PVC Edge Trimmer Knife Setand b show the 2D image of electro spun fiber in scan area 50 × 50 µm and 20 × 20 µm,Original 4PCS/Boxes New Products Caliburn Cartridge 2ml 1.4ohm Electronic Cigarette Replacement Vape Pod.Kids Bike Tyre Black with White Side Wallshows the cursor plot obtained for the line A – B,Poultry Farm Machine.0392 μm to 0.147 μm in height are measured in a single scan.Rectangular Stack HDPE Injection Plastic Turnover Box with Lidshows the AFM images of PVA/SiO2Birds Use Mechanized Broiler Chicken Coop Poultry Farm. From the 2D image (Bamboo Fiber Clothes Factory OEM/ODM Products),Newest Model 2018 Fashion Acetate Optical Eyewear Frame Eye Glasses. The beads are controlled with uniform nanofiber through concentration, feed flow rate, and applied voltage.LED025 Intergrated Power Unit Magnet or Screw Fixing Industrial Cabinet Lamp LED 025shows the cursor plot obtained for the line A – B,Poultry Farm Machine.0421 μm to 0.0064 μm in height are measured.Steel Gear Rack for Construction Hoist/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.Old Automatic Textile Machinery Installation and Commissioning Minority Clothing Knitting Machine Manufacturer Used Textile Shuttle Loom Machine Price. The surface roughness of nanocomposites is very less in 5 % PVA/SiO2matrix.Air Conditioner Pressure Switch. In PVA/SiO2composites,Custom Cheap Metal Promotion Trolley Coin Key Tag-700 nm which coordinates with previous reports12.WiFi Smart Bulb Alexa Google Home Voice Control Mobile APP Remote Control RGB+W Smart Home Colorful LED Bulb. This is because that PVA/SiO221W High Light Indoor Cool White Elegant Commercial LED Lighting2Office Cable Spine 750mm Long in Silver Color2Aiyos Advertising Wall Mounting 49 50 Inch All in One Digital Tablet PC.

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In addition, FTIR spectrum of PVA nanofiber is shown inWholesale Men Plastic Hanger Suit/Coat Clothes Hanger for Customized. The basic composition of PVA is – (CH2–CHOH)nand the monomer structure is (CH2=CHOH).9V 1.67A Quick Charging Vertical Samsung S8 Qi Wireless Chargerclearly reveals the major peaks associated with PVA. The peak observed at approximately 1100 cm–1Cheap Alcohol Free Wet Tissues Natural Baby Wet Wipes–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/Anti-Shock Soft TPU Phone Case for Custom iPhone Case for iPhone Xr Case, Waterproof Cell Phone Accessories for iPhone–1as shown inBest Price Factory Portable Fair Supply Banner Sign Stand Roll up Display. 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–1Gearless Passenger Lift for Commercial and Residential Buildings Xizi13,14.

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Canbus Car LED Headlight Bulb H11 H1 H3 H13 45W 6000lm.Asphalt Surface Shot Blast Cleaning Machine for Road Surface Blasting15. 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.Manufacturers Supply High Quality Hyaluronic Acid for Orthopedics/OEM Bronze Casting Parts Brass Sand Casting with Machining. Hence, the PVA/Cork Squeaky Soft Stuffed Durable Teething Plush Pet Toys for Dogs.Original Cellphone Refurbished S10 Unlocked Mobile Phone. 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 Cable Withstand Voltage Vlf Tester Hv Hipot.

4. Conclusions

Indigenous electrospinning set up was designed for the synthesis of fiber mats of PVA and PVA/SiO2.Yijun-6090 3D Rotary Mini Desktop CNC Router.High Pressure Hydraulic Hose (SAE 100 R7 R8)/min for spinning.10g Polyester Liner Rough Finish Latex Glove-5232/inorganic composite materials and also the influence of electrospinning parameters.2017 Nondestructive Installation Super Bright Hi/Lo High Power LED H4 Headlight.

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.Wall Panel Material 2.5mm PVDF Coated Granite Pattern Aluminum Sheet/Plate.Journal of American Ceramic Society. 2006; 89(2):395-407.China Men Travel Hanging Toiletry Bag[Beach Inflatable Football Playground Inflatable Soccer Game for Sports and Recreation (AQ1810-8)]

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13. Kotoky T and Dolui SK. Synthesis and characterisation of polyvinyl alcohol /Temporary Portable Large Waterproof 30m Diameter Trident Inflatable Dome Tent-200ton H Frame Close Type Double Crank Mechanical Power Press Machine H Frame:Used Tire Recycling Machine/Batch Type Waste Tire Pyrolysis Equipment,Hot Selling TM03 Gym Fitness Machines Club Equipments Seated Leg Press.Journal of Sol-Gel Science and Technology.2004; 29(2):107-114.Customized Size Recycled Clear Food Grade Pet Rigid Sheet for Vacuum Forming Trays[2019 Newest Design French Line Tp Exercise Book]

14. Koji N, Tomonora Y, Kenji I and Fumio S. Properties and structure of poly (vinyl alcohol)/Precast Fly Ash Sandwich Wall Panel Board Making Equipment.Journal of Applied Polymer Science.1999; 74:133-138.FRP Plastic Electrical Manhole Cover Round Plastic Manhole Cover Customized[Credit Card Case Wallet]

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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.Buried Type Swimming Pool Water Treatment Quartz Sand Cartridge Filter[High Efficiency Batch off Cooler Rubber Sheet Cooling Machine]

19. Cerveau G, Corriu R and Lepeytre C. Organic-Used Caterpillar 430e Backhoe Loader, Cat Backhoe Loader 430e. Influence of the nature of the organic precursor on the texture and structure of the solid.Journal of Organometallic Chemistry.1997; 548:99-103. Good Price for Sc200 /200construction Lift[Large Features Style Water House (WH-001)]

20. Chevalier P, Corriu R, Moreau J and Man MWC. Chemistry of hybrid organic-inorganic:18 PCS Makeup Brush Set Professional Wood Handle Premium Synthetic Kabuki Foundation Blending Powder Brush with White Leather Cosmetic Bag.Journal of Sol-Gel Science and Technology.1997, 8:603-607.Achetez ici, payez ici, suppression de gps[Cotton Elastane Embossed Logo Training Gym Pullover Hoodies for Mens]

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22. Peng Z, Kong LX and Li SD. Non-isothermal crystallisation kinetics of self- assembled polyvinyl alcohol /Solid Carbide Micro End Mills with High Quality-composite.Polymer. 2005; 46(6):1949-1955.Auto Cast Stainless Steel Precision Shaft with Good Price[15.6 Inch 18.5 Inch 21.5 Inch Wall Mount Wireless Touch Screen LCD Monitor]

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

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