ChE F11 Lecture 7_polymers and mechanical properties

ChE F11 Lecture 7_polymers and mechanical properties -...

Info iconThis preview shows pages 1–14. Sign up to view the full content.

View Full Document Right Arrow Icon
Assignment:
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Types of Materials:
Background image of page 2
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 4
Watched the Making nylon video The reaction is a mixture of an aqueous solution with a non-polar solvent The reaction occurs at the interface between these two solvents and is called an “interfacial polymerization” The guy doing the demo pulled fibers of nylon from the beaker
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Uses of nylon: carpet fiber, clothing fishing lines , footwear nylon fiber , pantyhose windpants , toothbrush bristles , Velcro , airbag fiber auto parts: intake manifolds , gas (petrol) tanks slings and rope used in climbing gear and slacklining machine parts, such as gears and bearings parachutes , metallized nylon balloons classical and flamenco guitar strings paintball marker bolts racquetball , badminton , squash , and tennis racquet strings Strings for String instruments , Drumstick heads As filter media in sterilizing grade filters , Flexible tubing Basketball netting , Sutures , flags Rings for baby slings , Brassiere
Background image of page 6
Body Armor Greek bronze shield Roman warrior Bullet proof vest
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 8
Kevlar: disovered by Stephanie Kwolek
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Phenylene diamine Terephtaloyl chloride In n-methyl pyrrolidone and CaCl2 Kevlar is a polyamide, like nylon.
Background image of page 10
Isomers: trans v cis; stereoisomers
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Kevlar forms very tough materials because the polymer chains are rigid and straight, with signfiicant interchain hydrogen bonding
Background image of page 12
Properties of kevlar When Kevlar is spun , the resulting fiber has great tensile strength
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 14
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/13/2011 for the course CHE 350 taught by Professor Sanchez during the Spring '08 term at University of Texas.

Page1 / 38

ChE F11 Lecture 7_polymers and mechanical properties -...

This preview shows document pages 1 - 14. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online