Acrylic

Acrylic fiber

-was first invented to replace wool.

-in a shape of staple fiber (can be filament)

Poly + ester = polyester

Poly + amide = polyamide (nylon)

PMMA, PAN, PAA = Acrylic

PMMA: polymethylmethacrylate

PAN: polyacrylonitrile

PAA: polyacrylic acid

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Polyacrylic acid

Vinyl acetate

Methyl acrylate

Acrylonitrile

Free radical polymerization

Acrylic yarn (staple)

Polyacrylonitrile

Poly+acrylo+nitrile

nitrile

backbone

Hydrogen bonding

Wool structure

PAN structure

Mechanical strength

Modacrylic-flame retardant properties

35-85% acrylonitrile

Vinylidene chloride

Vinyl bromide

PVC

neoprene

Carbon fiber

Carbon fiber

Microparticles

A team at Plymouth University in the UK spent 12 months analyzing what happened when a number of synthetic materials were washed at different temperatures in domestic washing machines, using different combinations of detergents, to quantify the microfibres shed. They found that acrylic was responsible for releasing nearly 730,000 tiny synthetic particles (microplastics) per wash, five times more than polyester-cotton blend fabric, and nearly 1.5 times as many as pure polyester