#7: Technical Nylon and Jacquard Weaving Eva Serrato

 

# 7: Technical Nylon and Jacquard Weaving

INT323

Eva Serrato

Technical Nylon: Nylon production (youtube.com)

Nylon is a well-known material that is used around the world. In this video they explain how the main uses for nylon are, ropes, clothes, and reinforcing tires. The ingredients for nylon are adipic acid (hexane dioic acid) and 1,6-diaminohexane. These two elements have a chain of six carbon atoms with an emphasis on the two atoms on each end of the chain. Something called Polymerization happens when the two monomers of cyclohexane and adiponitrile come together and link to one long chain called nylon. Adipic acid is made by cyclohexane which is oxidized by air and then nitric acid. Diamino hexane is made by adiponitrile which is hydrogenated. The two original ingredients of nylon, which I mentioned in the beginning are combined to create nylon salt, then it is heated to extract the water, and this created nylon. The nylon salt is pressurized at 18 atmospheres and heated to 280 degrees Celsius to drive out the water. At this stage the nylon can be pigmented and change to create different outcomes of the nylon properties. The nylon is then hosed through tubes that produce fiber like structures and then cooled off in water, cut up and shipped to other places to become nylon fibers.

Jacquard Weaving: Recycling Plastic Bottles into Polyester Yarn on "How It's Made" (youtube.com) 

Polyester is made from plastic bottles that are chopped up into little chips and then heated to form hard shells around the chips. Then the plastic goes into the dryer to get rid of all moisture. The chips are then transferred to a heated tub that turns the plastic pellets into hot liquid. The polyester is then run through a showerhead- like plate called a dye plate. this plate has tiny holes that the polyester is ran through to create filament fibers. Finely gained metal is placed with the dye plate to filter any other impurities in the polyester as well. Then in the 68 holes that are in each plate squirt out polymer filaments that are finer that human hair. While the filament run out of the plates they cool and then are run through compartment that blows air to untangle the fibers. A spool wraps up the fibers neatly into spools of polymer filaments. The filaments are stiff and need to be run over a hot rubber wheel that then loosens and becomes more flexible fibers. The polymer fibers are then spooled up again and turn out like the consistency of wool instead of hard plastic.






Comments

  1. Sami FordOctober 17, 2024 at 1:10 PM

    Good job summarizing the two videos! Isn't is amazing how yarn can be made from plastic water bottles! Also, who knew that nylon was used in tires?

    ReplyDelete

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