nano-fibers spun from melt-blown polymers

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melt blown melt blown die nonwoven microfiber ther-moplastic hot air and die design Introduction Melt blowing is one of the most popular processes to make super fine fibers on the micron or sub micron scale It is a "one-step process in which high velocity fluid normally air blows molten thermoplastic resin from an extruder die tip on

US7297305B2

US7297305B2 US10/819 945 US81994504A US7297305B2 US 7297305 B2 US7297305 B2 US 7297305B2 US 81994504 A US81994504 A US 81994504A US 7297305 B2 US7297305 B2 US 7297305B2 Authority US United States Prior art keywords electrospinning fibers method substance tip Prior art date 2004-04-08 Legal status (The legal status is an assumption and is not a legal conclusion

[Full text] Platelet

Platelet-functionalized three-dimensional poly-ε-caprolactone fibrous scaffold prepared using centrifugal spinning for delivery of growth factors Michala Rampichov 1 2 Matej Buzgo 1 Andrea Mckov 1 2 Karolna Vocetkov 2 Vera Sovkov 2 Vera Lukšov 2 Eva Filov 2 Franco Rustichelli 2 Evžen Amler1 2 1Indoor Environmental Quality University Center for Energy Efficient Buildings

PPT

Cylinder Collector method • Electro spun nano fibers could be oriented circumferentially • Fiber alignment Speed Cylinder Rotation Speed ~ ~ Electrode Collection process The auxiliary electrode (grid) made of a plurality of connected aluminum foil strips in 5 mm width 30 mm long and 5 mm apart was placed 8 cm away from the collection mandrel and charged to -8 kV

MELT ELECTROSPUN FIBERS CONTAINING MICRO AND

Fibers having two or more alternating polymer layers are formed by co-extrusion followed by electroprocessing The fibers can be used as a non-woven mat or other substrate for a variety of applications Delamination of the fibers using ultrasonication yields separated micro and nanolayer fiber ribbons which may also be used a non- woven mat or other substrate

Nonwoven web formation rajesh

Polymers Fibers Yarns Woven Knitted Braided Non-woven Fabrics Application Woven structure Knitted structure Braided structure Fabric Development process • Nano fibers Fiber to Fabric (Ex: Carded Air Laid Wet Laid) b) Polymer to fabric (Ex: Spun Bond Melt Blown SMS) 2) Web bonding 3) Finishing Treatments PSG TECH 9

Dust Collection (Filter Bags Pleated Cartridges Pleated

A list of the major filtration segments would include the following pews: Automotive (engine air fuel oil cabin air) Clean Room Coolant and Lubricant Dust Collection (Filter Bags Pleated Cartridges Pleated Bags Cleanable) HVAC Paint Spray Booth Buss Duct Make Up Air Gas Turbine Oil Mist Coalescers Hydraulic and Line Liquid Process Filters (All Types Cleanable) Medical

Rubber or thermoplastic resin patent application class

Rubber or thermoplastic resin Subclass of: 429 - Chemistry: electrical current producing apparatus product and process 429122000 - CURRENT PRODUCING CELL ELEMENTS SUBCOMBINATIONS AND COMPOSITIONS FOR USE THEREWITH AND ADJUNCTS 429247000 - Separator retainer spacer or materials for use therewith 429249000 - Organic material Patent class list (only not empty

Use of Nano Fibers in Filtration

Use of Nano Fibers in Filtration - A Review Mohammad Minhajur Rahman1 Prof Ashwin I Thakkar2 2H O D 1 2Department of Textile Technology Engineering 1 2L D College of Engineering Ahmedabad-15 Abstract— Filtration is an effective separation process and textile materials are being used since ages as the media for this separation Conventional textile filter media consist of natural as

ELECTRO SPINNING FOR NANO FIBRES

Electro spun nano fibers could be oriented circumferentially Fiber alignment Speed Cylinder Rotation Speed The auxiliary electrode (grid) made of a plurality of connected aluminum foil strips in 5 mm width 30 mm long and 5 mm apart was placed 8 cm away from the collection mandrel and charged to -8 kV

Use of Nano Fibers in Filtration

Use of Nano Fibers in Filtration - A Review - Free download as PDF File ( pdf) Text File ( txt) or read online for free Filtration is an effective separation process and textile materials are being used since ages as the media for this separation Conventional textile filter media consist of natural as well as man-made fibres with fibre diameters usually in the range 1‚€œ 50

Physical dimension patent application class

Physical dimension Subclass of: 428 - Stock material or miscellaneous articles 428357000 - COATED OR STRUCTUALLY DEFINED FLAKE PARTICLE CELL STRAND STRAND PORTION ROD FILAMENT MACROSCOPIC FIBER OR MASS THEREOF 428364000 - Rod strand filament or fiber Patent class list (only not empty are listed) Deeper subclasses:

ELECTRO SPINNING FOR NANO FIBRES

Electro spun nano fibers could be oriented circumferentially Fiber alignment Speed Cylinder Rotation Speed The auxiliary electrode (grid) made of a plurality of connected aluminum foil strips in 5 mm width 30 mm long and 5 mm apart was placed 8 cm away from the collection mandrel and charged to -8 kV

Electrospinning A Fascinating Method for the Preparation

In the melt-blown technique polymer melts arepushed under relatively high pressure through an array ofnozzles Fibers are formed from the melt under rapid coolingin the countercurrent Multicomponent fibers which consistof segments of different polymers are fabricated by extrusiontechniques for example by handling with water jets

Polymer/carbon nano fiber composite fibers — Okayama

Carbon nano fibers (typical diameter 50 to 200 nm) and nanotubes are being used for reinforcing polymers Carbon nano fibers (CNFs) have been blended in poly(p-phenelyene benzobisthiazole) (PBZT) by in situ polymerization and fibers were spun using dry-jet wet spinning

Nanofibers: Emerging Progress on Fabrication Using

AbstractNanofibers have attracted extensive interest over the few decades due to their unique physicochemical properties Tremendous efforts have been made to explore their applications and many articles have been published in the literature to date These studies of nanofibers have focused on two main issues that is how to make nanofibers and how they can be used

Nonwovens Industry Magazine

NONWOVENS INDUSTRY is the only monthly trade magazine dedicated to the worldwide business of nonwovens For more than 30 years the magazine has tracked the growth of the nonwovens industry through years of changes technology evolution and market development

blog

In this manner we produced polypropylene microfibers about 40% finer than typical melt-blown fiber with a mean diameter of 0 ninety six and a narrower fiber dimension distribution The answer is pumped by a spin nozzle the place air is blown at high speed concentrically alongside every spun filament which is elongated and picked up on a drum in a coagulation bath

Nano

Nano-Fibers Spun from Melt-Blown Polymers An innovative new die produced by The Arthur G Russell Company Inc produces large quantities of nano-fibers from PP PET PBT and other resins Bristol CT: Nano-fibers less than 0 5 micron diameter have been made from low cost polypropylene (PP) polyethylene (PET) PBT and many other polymers using an innovative nano-fiber melt-blown

Physical dimension patent application class

Physical dimension Subclass of: 428 - Stock material or miscellaneous articles 428357000 - COATED OR STRUCTUALLY DEFINED FLAKE PARTICLE CELL STRAND STRAND PORTION ROD FILAMENT MACROSCOPIC FIBER OR MASS THEREOF 428364000 - Rod strand filament or fiber Patent class list (only not empty are listed) Deeper subclasses:

Nonwoven web formation rajesh

Polymers Fibers Yarns Woven Knitted Braided Non-woven Fabrics Application Woven structure Knitted structure Braided structure Fabric Development process • Nano fibers Fiber to Fabric (Ex: Carded Air Laid Wet Laid) b) Polymer to fabric (Ex: Spun Bond Melt Blown SMS) 2) Web bonding 3) Finishing Treatments PSG TECH 9

Use of Nano Fibers in Filtration

Use of Nano Fibers in Filtration - A Review - Free download as PDF File ( pdf) Text File ( txt) or read online for free Filtration is an effective separation process and textile materials are being used since ages as the media for this separation Conventional textile filter media consist of natural as well as man-made fibres with fibre diameters usually in the range 1‚€œ 50

INDA

The state-of-the-art facilities include laboratories dedicated to fiber fabric and polymer characterization spunbond and melt blown pilot lines with bicomponent fiber capability carding cross-lapping needle punching hydroentangling thermal bonding and spun bond/melt blown/carded web

Meltblown Polyester Nonwoven Market

Meltblown Polyester Nonwoven Fabric Market: Overview Melt blowing is a technique used for the manufacture of thin sheets of nonwoven fibers It is a method by which polymer melt is extruded out through tiny nozzles and subjected to high-speed blowing gas

Melt blown nanofibers: Fiber diameter distributions and

Melt blown fibers were collected on a stainless steel screen located 55 cm away from the die exit which is in the range of typical collection distances used in commercial melt blowing lines At the collection location the air jet possesses a substantially lower average velocity widened overall diameter (∼5–6 in at the collection point) and has cooled to temperatures well below 50 C

Electrospun Fibers

The creation of nano-fibers is desired for the development of filtration membranes and for When the polymer concentration is high fibers can form from the utilization of chain entanglement in polymer solutions source electrode and a solution or melt to be spun The polymer solution is held in place by a glass syringe with a

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