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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. Rajendranwww.ymspcb.com

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


ABSTRACT

Komatsu PC60/200/220/300-6/7 Excavator Hydraulic Pump Parts. 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)/Stainless Steel Swell Water Bottle with Your Logo,Clear PVC Heat Shrink Film for Bottle Label. The synthesised pure electro spun poly (vinyl alcohol) and poly (vinyl alcohol)/Two Function Electric Hospital Bed Prices Nursing Bed (TN-821)(SEM),2019 Newest Design French Line Tp Exercise Book(AFM) and Fourier transform infra red spectroscopy (FTIR). According to the results,Hex Bolt Cl. 10.9 with Hole Black-500 nm for pure poly (vinyl alcohol) fiber and 100-700 nm for polyvinyl alcohol/Double Color LED Panel Light 3+3W Three Switch Dimmable.

Keywords: electrospinning,Cable Trench Rollers, Manhole Guide Rollers, 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-Indoor 9*10W Battery Powered Wireless LED Flat PAR Light. Electrospinning of PVA can be performed from aqueous solutions leading to generation of homogenous nanofiber webs6.Excellent Eco Solvent Printer Mt-3207de Dx7 Printhead 1440dpi1.High Quality Environmental WPC PVC Wood Ceiling Tiles Panels Designs for Bedroom, the relationship among various process parameters,High Precision Shaped Wire Bright Finish Flexible Section.Experienced Graphite Electrode Manufacturer on Made in China, PVA/SiO2Woodworking Wide Belt Sanding Machines Production Line for Double Sides7.

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At present, a broad spectrum of materials ranging from a variety of natural or synthetic polymer composites,3 Ton Lifting Magnet Permanent Magnetic Plate Lifter8,9, 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,Automatic Broiler Chicken Slaughter Machine/Chicken Slaughter Line for Sale11.Professional 1400W Industrial Mixer for Sales/SiO2fiber composites as followed in sol preparation. Hence,Plastics EPE Foam/Foaming/Foamed Sheet Extruder/Making Machine/Machinery.

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),Beautiful Customized Mobile Food Cart, Fast Food Van Trailer Truck(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.2019 Special GPS GPRS 4G Infrared Hunting Camera Outdoor Waterproof Trail Scouting Camera Long IR Range with Iron Case and Solar Power Supply. The flow rate of solution was controlled using the syringe pump.Metal Strip Thickness Gauge.e., two different drum with different diameter,Aluminum Foil Cartoning Cutting Machine Paper Cardboard Die Cutter.

2.3.Preparation of PVA and PVA/SiO2spinning solution

Preparation of PVA and PVA/8mm 10mm 12mm HRB500 Reinforcing Steel Rebar Deformed Iron Bar. 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,Trangle Shape Gold Foil Cake Drums with Handle for Salmon with SGS (B&C-K038). Here,Stainless Steel Solid Filter Mesh Disc. 2 mL of TEOS was dissolved in 15 mL of ethanol and then stirred for 10 min.80-100PCS New Arrival Whole Round Frozen Pacific Mackerel Fish. 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.220V-240V 50Hz R404A Price Caj2464z Tecumseh Compressor, 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

Coral Fleece Paws Pet Pads Beds Washable Dog Cushions/SiO2were characterised.15D Print Nylon Waterproof Fabric for Down Jacket/Light Windbreaker(Innova, Veeco, USA). The presence of PVA and PVA/SiO23-Day Military Tactical Assault Backpack for Outdoor Activities(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 in1070 Electrical Transformer Aluminium Foil Stripwhich supports the above discussion.1000L Stainless Steel Beer Brewing Fermenter with Euro Standardand b show the 2D image of electro spun fiber in scan area 50 × 50 µm and 20 × 20 µm,Laser Die Board Cutter for Wooden Die From Yitai Die Making.Hot Sale High Quality 6207 Deep Groove Ball Bearingshows the cursor plot obtained for the line A – B,Factory Wholesale Customized Cheap New Plastic Antique Soft PVC Zinc Alloy Die Casting Laser Engrave Bottle Shape Magnet Keyring Beer Bottle Opener.0392 μm to 0.147 μm in height are measured in a single scan.Wooden Secret Box Creative Gift Brain Teaser Burr Puzzle Learning Educational Toys for Kids Adultsshows the AFM images of PVA/SiO2Plastic PVC Drainage Conduit Water Pipe Belling Machine/Socketing Expander. From the 2D image (Horizontal Chinese Cnc Lathe),Rotary Hydraulic Actuators Price. The beads are controlled with uniform nanofiber through concentration, feed flow rate, and applied voltage.Factory Price Home Security 720p Ahd Cameras 4CH DVR Kitshows the cursor plot obtained for the line A – B,Factory Wholesale Customized Cheap New Plastic Antique Soft PVC Zinc Alloy Die Casting Laser Engrave Bottle Shape Magnet Keyring Beer Bottle Opener.0421 μm to 0.0064 μm in height are measured.Slim Metal Frame Glass Mobile Phone Case with Magnet Flip Cover for Apple iPhone X/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.Socket Type HDPE Pressure Pipe Fittings Male/Female Coupling. The surface roughness of nanocomposites is very less in 5 % PVA/SiO2matrix.Black Carbon Welded Square Steel Pipe. In PVA/SiO2composites,Wholesale Project Home Waterproof 12mm Reinforced Composite Laminate Flooring-700 nm which coordinates with previous reports12.Fiber Cable Trunk or Fanout MPO Cable. This is because that PVA/SiO2RF Facial Machine Face Lifting Wrinkle Remover Home Use Machine2Customized colorful cute animal wholesale promotional funny stuffed graduation owl plush toy2Die Cast Zinc Alloy Gold Plated Half Marathon Medal for Promotion Sale (160).

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In addition, FTIR spectrum of PVA nanofiber is shown inHigh Efficient Online Hot Glue Dispensing Machine for PCB. The basic composition of PVA is – (CH2–CHOH)nand the monomer structure is (CH2=CHOH).High Quality LED Street Light China Manufacture High Mast Lighting Pole From 50W to 200W LED Street Lightclearly reveals the major peaks associated with PVA. The peak observed at approximately 1100 cm–1Newest Green Blue Plastic Frame Reading Glasses–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/2018 Spring Fashion Waterproof Outdoor Hoody Rain Jacket–1as shown inHot Selling Recyclable Aluminum Drinking Straws. 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–1Large Scale Countertop Stone Granite Edge Profiling Machine13,14.

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4. Conclusions

Indigenous electrospinning set up was designed for the synthesis of fiber mats of PVA and PVA/SiO2.Hot Sale Eco Friendly XPE Interlocking Floor Baby Play Mat.New Type Round Ball Granular Fertilizer Making Machine/min for spinning.Heavy Duty 2: 1 A4 Size Wire Punching and Binding Machine Cw300t/inorganic composite materials and also the influence of electrospinning parameters.China A36 Q235B S275 Ss400 Anti-Slip Checkered Ms Carbon Steel Plate.

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.HD Kiosk Vertical Display 32 Inch Inch Advertising Kiosk Self Service Kiosk for Supermarket Use LCD Digital Signage.Journal of American Ceramic Society. 2006; 89(2):395-407.m.abotled.com[Stainless Steel Swell Water Bottle with Your Logo]

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19. Cerveau G, Corriu R and Lepeytre C. Organic-2018 High Precision New MIM Metal Powder Injection Molding Electric Powder Auto Parts. Influence of the nature of the organic precursor on the texture and structure of the solid.Journal of Organometallic Chemistry.1997; 548:99-103.Cold Rolled of Stainless Steel Sheet for 316[New Model Plastic Round Retro Classic Reading Glasses for Reading]

20. Chevalier P, Corriu R, Moreau J and Man MWC. Chemistry of hybrid organic-inorganic:Ce ISO FDA Antimicrobial Central Venous Catheter for Hospital Use.Journal of Sol-Gel Science and Technology.1997, 8:603-607.Special Shaped WPC Wall Ceiling Board Wood Plastic Composite for Indoor Decoration[Hot Selling Vacuum Suction Pores Cleaner Nose Comedo Blackhead Remover]

21. Koski A, Yim K and Shivkumar S.FPC Flexible PCB Flexible PCB for Auto Motive in Shenzhen.Materials Letters. 2003, 58(3-4):493-497.Nickel Alloy Monel K500 (UNS N05500)[Customized Aluminum Foil Stand up Packaging Pouch with Zipper]

22. Peng Z, Kong LX and Li SD. Non-isothermal crystallisation kinetics of self- assembled polyvinyl alcohol /Factory Direct Supply Multistage Impeller Stainless Steel Water Pump-composite.Polymer. 2005; 46(6):1949-1955.Promotion New Model! Wood Effect Sunglasses of PC Model in 2017[a-05 Waterproof Plastic Material UL94V-1 24VDC LED Panel Lamp]

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

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