fibers 2.0

Fibers

used to reinforce composites; these are embedded in a selected matrix with the proper alignment and spacing to produce the desired properties. Can be continuous or discontinuous.

Textiles

cloth items

Generic

characteristic of an entire class or species; of a genus

Fabric

(v.) to make up or create; (v.) to concoct in an effort to deceive someone

Filaments

Fills in most of the hair structor

Inorganic

Not formed from living things or the remains of living things

Yarn

Fibers twisted together or laid side by side

Warp

(v.) to twist out of shape; (n.) an abnormality

Weft

the yarn woven horizontally across the warp yarn in weaving (aka Woof)

Blend

mix together different elements

Polypeptide

long chain of amino acids that makes proteins

Helix

Something spiral in form.

Keratin

A fiber protein that is the principal component of hair, skin, and nails is:

Plastics

synthetic polymers that can be molded or shaped

Catalyst

something that brings about a change in something else

Viscosity

Resistance to flow

Homopolymers

Polymers made up of one type of repeating unit

Polyethers

a series of carbon atoms connected by oxygen atoms

Density

Mass / Volume

Becke line

A bright halo that is observed near the border of a particle immersed in a liquid of a different refractive index

Optical brighteners

colorless dyes that cause blue light to be reflected, thereby making an object look whiter

Chromatography

A technique that is used to separate the components of a mixture based on the tendency of each component to travel or be drawn across the surface of another material.

Elulte

remove (an adsorbed substance) by washing with a solvent, especially in chromatography.

Chromatogram

The recording of the results of a chromatography procedure

Retention factor

You measured the Rf of various compounds on the TLC plates in Experiment 5. What does Rf stand for?