1 / 10

NYLON

NYLON. Tutor: Josanne Ghirxi B.Pharm (Hons), P.G.C.E. School: St Benedict College, Margaret Mortimer GJL, Malta. A Project by Deborah Francalanza. Nylon - Definition. A generic classification for a family of synthetic polymers known as polyamides.

ryanadan
Télécharger la présentation

NYLON

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. NYLON Tutor: Josanne Ghirxi B.Pharm (Hons), P.G.C.E. School: St Benedict College, Margaret Mortimer GJL, Malta A Project by Deborah Francalanza

  2. Nylon - Definition • A generic classification for a family of synthetic polymers known as polyamides • First produced on the 28th February 1935 by Wallace Hume Carothers, an American chemist, at DuPont

  3. DuPont Corporation • An American chemical corporation • Currently the world's second largest chemical company in terms of market capitalization • Wallace Hume Carothers appointed as head of DuPont Organic Chemistry Department in 1927 • Carothers was born on the 27th April 1896 in Iowa and died in 1937

  4. Early history of nylon production • To replace Asian silk with a similar, durable but less costly product • Carothers produced half-an-ounce of a polymer (labelled as polyamide 6-6) at DuPont Corporation on 28th February 1935. The polymer was eventually developed into a commercial product - Nylon • Early use of nylon was in parachutes, tyres, tents, ropes, ponchos and other military supplies

  5. Characteristics of nylon • Varies in luster • Durable and elastic • Easy to wash and can dye • High resistance to insects, fungi and chemicals • Abrasion resistant • Melts instead of burning

  6. Modern use of Nylon • Clothing - footwear, velcro, carpet fibre • Auto parts - petrol tanks, gears, bearings • Abseiling gear - slings and ropes • Sports items – racquet strings, basketball netting, fishing lines • Strings - music instruments • Medical equipment - filtering media in sterilising, sutures

  7. Visit to Nylon Knitting Malta Limited • Production of synthetic fibres and finished fabric used in diapers from raw material • Raw material (PA6) arrives in big bags and unloaded into silos

  8. Extrusion and Spinning • PA6 is fed to the extruder • Heated into a molten state and pressure fed from the extruder via heated jacket tubes to spinning pumps • Polymer is forced through a complex filtration system and finally through spinerettes • Yarn is automatically wound on spools to a pre-determined weight

  9. Draw Warping and Warp Knitting • Draw warping machine runs new load of yarn whereby beams with defined number of threads and meterage are produced • Beams are loaded on knitting machines that produce fabric rolls of a chosen type, width, and length • Finished rolls are transferred to packing machines, labelled, and checked prior exportation

  10. NYLON THANK YOU

More Related