Science, asked by rvds, 7 months ago

what is arcylic fibte ? Also give 2 example

Answers

Answered by Bumble55
1

Answer:

Acrylic fibers are synthetic fibers made from a polymer with an average molecular weight of -100,000, about 1900 monomer units. For a fiber to be called "acrylic" in the US, the polymer must contain at least 85% acrylonitrile monomer. Typical comonomers are vinyl acetate or methyl acrylate. Acrylic is used in knitted apparels such as fleece, socks, sportswear, and sweaters. It is also used to create fake fur, craft yarns, upholstery fabric, carpet, luggage, awnings, and vehicle covers. The acrylic fibers include acrylic, modacrylic, and other vinyl fibers containing cyanide groups as side chains.

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Answered by udaymt6377
0

Explanation:

Acrylic fibers are synthetic fibers made from a polymer (polyacrylonitrile) with an average molecular weight of -100,000, about 1900 monomer units. For a fiber to be called "acrylic" in the US, the polymer must contain at least 85% acrylonitrile monomer. Typical comonomers are vinyl acetate or methyl acrylate. DuPont created the first acrylic fibers in 1941 and trademarked them under the name Orlon.[1] It was first developed in the mid-1940s but was not produced in large quantities until the 1950s. Strong and warm, acrylic fiber is often used for sweaters and tracksuits and as linings for boots and gloves, as well as in furnishing fabrics and carpets. It is manufactured as a filament, then cut into short staple lengths similar to wool hairs, and spun into yarn.

Modacrylic is a modified acrylic fiber that contains at least 35% and at most 85% acrylonitrile monomer. The comonomers vinyl chloride, vinylidene chloride or vinyl bromide used in modacrylic give the fiber flame retardant properties. End-uses of modacrylic include faux fur, wigs, hair extensions and protective clothing.

Acrylic fabric is lightweight, warm, and soft to the touch. It is thus used in place of wool or blended with sheep wool or cashmere. Common end products of acrylic fabric include sweaters, hats, socks, and knitting yarn. Like polyester and nylon, acrylic fabric is hydrophobic – meaning it repels water.

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