Synthetic fiber

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Synthetic fibers or synthetic fibres (in British English; see spelling differences) are fibers made by humans through chemical synthesis, as opposed to natural fibers that are directly derived from living organisms, such as plants (like cotton) or fur from animals. They are the result of extensive research by scientists to replicate naturally occurring animal and plant fibers. In general, synthetic fibers are created by extruding fiber-forming materials through spinnerets, forming a fiber. These are called synthetic or artificial fibers. The word polymer comes from a Greek prefix "poly" which means "many" and suffix "mer" which means "single units". (Note: each single unit of a polymer is called a monomer).

Contents

The first synthetic fibres

Nylon was the first commercially successful synthetic thermoplastic polymer. DuPont began its research project in 1927. The first nylon, nylon 66, was synthesized on February 28, 1935, by Wallace Hume Carothers at DuPont's research facility at the DuPont Experimental Station.

The next step was taken by Hilaire de Chardonnet, a French engineer and industrialist, who invented the first artificial silk, which he called "Chardonnet silk". In the late 1870s, Chardonnet was working with Louis Pasteur on a remedy to the epidemic that was destroying French silkworms. Failure to clean up a spill in the darkroom resulted in Chardonnet's discovery of nitrocellulose as a potential replacement for real silk. Realizing the value of such a discovery, Chardonnet began to develop his new product, [1] which he displayed at the Paris Exhibition of 1889. [2] Chardonnet's material was extremely flammable, and subsequently replaced with other, more stable materials.

Commercial products

Nylon was first synthesized by Wallace Carothers at DuPont. Wallace Carothers, in the lab.jpg
Nylon was first synthesized by Wallace Carothers at DuPont.

The first successful process was developed in 1894 by English chemist Charles Frederick Cross, and his collaborators Edward John Bevan and Clayton Beadle. They named the fiber "viscose", because the reaction product of carbon disulfide and cellulose in basic conditions gave a highly viscous solution of xanthate. [3] The first commercial viscose rayon was produced by the UK company Courtaulds in 1905. The name "rayon" was adopted in 1924, with "viscose" being used for the viscous organic liquid used to make both rayon and cellophane. A similar product known as cellulose acetate was discovered in 1865. Rayon and acetate are both artificial fibers, but not truly synthetic, being made from wood. [4]

Nylon, the first synthetic fiber in the "fully synthetic" sense of that term,[ citation needed ] was developed by Wallace Carothers, an American researcher at the chemical firm DuPont in the 1930s. It soon made its debut in the United States as a replacement for silk, just in time for the introduction of rationing during World War II. Its novel use as a material for women's stockings overshadowed more practical uses, such as a replacement for the silk in parachutes and other military uses like ropes.

The first polyester fiber was patented in Britain in 1928 by the International General Electric company. [5] It was also produced by British chemists working at the Calico Printers' Association, John Rex Whinfield and James Tennant Dickson, [6] [7] in 1941. They produced and patented one of the first polyester fibers which they named Terylene, also known as Dacron, equal to or surpassing nylon in toughness and resilience. [8] ICI and DuPont went on to produce their own versions of the fiber.

The world production of synthetic fibers was 55.2 million tonnes in 2014. [9]

Descriptions

A device for spinning Viscose Rayon dating from 1901 Viscose Rayon spinning machine.JPG
A device for spinning Viscose Rayon dating from 1901

About half of all fibres are synthetic, with applications in every field of fiber and textile technology. Although many classes of fibers based on synthetic polymers have been evaluated as potentially valuable commercial products, four of them - nylon, polyester, acrylic and polyolefin - dominate the market. These four account for approximately 98 percent by volume of synthetic fiber production, with polyester alone accounting for around 60 percent. [10]

Synthetic fibers are a source of microplastic pollution from laundry machines. [11]


Common synthetic fibers

Common synthetic fibers include:

Specialty synthetic fibers include:

[ citation needed ]

Other synthetic materials used in fibers include:

Modern fibers that are made from older artificial materials include:

See also

Related Research Articles

<span class="mw-page-title-main">Nylon</span> Early synthetic polymer developed as a textile fiber

Nylon is a family of synthetic polymers with amide backbones, usually linking aliphatic or semi-aromatic groups.

<span class="mw-page-title-main">Fiber</span> Natural or synthetic substance made of long, thin filaments

Fiber or fibre is a natural or artificial substance that is significantly longer than it is wide. Fibers are often used in the manufacture of other materials. The strongest engineering materials often incorporate fibers, for example carbon fiber and ultra-high-molecular-weight polyethylene.

<span class="mw-page-title-main">Cellophane</span> Thin, transparent sheet made of cellulose

Cellophane is a thin, transparent sheet made of regenerated cellulose. Its low permeability to air, oils, greases, bacteria, and liquid water makes it useful for food packaging. Cellophane is highly permeable to water vapour, but may be coated with nitrocellulose lacquer to prevent this.

<span class="mw-page-title-main">Rayon</span> Cellulose-based semi-synthetic fiber

Rayon, also called viscose and commercialised in some countries as sabra silk or cactus silk, is a semi-synthetic fiber, made from natural sources of regenerated cellulose, such as wood and related agricultural products. It has the same molecular structure as cellulose. Many types and grades of viscose fibers and films exist. Some imitate the feel and texture of natural fibers such as silk, wool, cotton, and linen. The types that resemble silk are often called artificial silk. It can be woven or knit to make textiles for clothing and other purposes.

<span class="mw-page-title-main">Cellulose acetate</span> Organic compounds which are acetate esters of cellulose

In biochemistry, cellulose acetate refers to any acetate ester of cellulose, usually cellulose diacetate. It was first prepared in 1865. A bioplastic, cellulose acetate is used as a film base in photography, as a component in some coatings, and as a frame material for eyeglasses; it is also used as a synthetic fiber in the manufacture of cigarette filters and playing cards. In photographic film, cellulose acetate film replaced nitrate film in the 1950s, being far less flammable and cheaper to produce.

<span class="mw-page-title-main">Lyocell</span> Regenerated cellulose fiber made from dissolving pulp

Lyocell is a semi-synthetic fiber used to make textiles for clothing and other purposes. It is a form of regenerated cellulose made by dissolving pulp and dry jet-wet spinning. Unlike rayon; which is made by the more common viscose processes, Lyocell production does not use carbon disulfide, which is toxic to workers and the environment. Lyocell was originally trademarked as Tencel in 1982.

Polymer chemistry is a sub-discipline of chemistry that focuses on the structures of chemicals, chemical synthesis, and chemical and physical properties of polymers and macromolecules. The principles and methods used within polymer chemistry are also applicable through a wide range of other chemistry sub-disciplines like organic chemistry, analytical chemistry, and physical chemistry. Many materials have polymeric structures, from fully inorganic metals and ceramics to DNA and other biological molecules. However, polymer chemistry is typically related to synthetic and organic compositions. Synthetic polymers are ubiquitous in commercial materials and products in everyday use, such as plastics, and rubbers, and are major components of composite materials. Polymer chemistry can also be included in the broader fields of polymer science or even nanotechnology, both of which can be described as encompassing polymer physics and polymer engineering.

<span class="mw-page-title-main">Acrylic fiber</span> Synthetic fiber made from polymer

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. 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.

<span class="mw-page-title-main">Polymer science</span> Subfield of materials science concerned with polymers

Polymer science or macromolecular science is a subfield of materials science concerned with polymers, primarily synthetic polymers such as plastics and elastomers. The field of polymer science includes researchers in multiple disciplines including chemistry, physics, and engineering.

<span class="mw-page-title-main">Cordura</span> Trademark for a group of high-performance fabrics developed by DuPont and now owned by Invista

Cordura is a collection of synthetic fiber-based fabric technologies used in a wide array of products including luggage, backpacks, trousers, military wear and performance apparel.

<span class="mw-page-title-main">Polyester</span> Category of polymers, in which the monomers are joined together by ester links

Polyester is a category of polymers that contain the ester functional group in every repeat unit of their main chain. As a specific material, it most commonly refers to a type called polyethylene terephthalate (PET). Polyesters include naturally occurring chemicals, such as in plants and insects, as well as synthetics such as polybutyrate. Natural polyesters and a few synthetic ones are biodegradable, but most synthetic polyesters are not. Synthetic polyesters are used extensively in clothing.

Elmer Keiser Bolton was an American chemist and research director for DuPont, notable for his role in developing neoprene and directing the research that led to the discovery of nylon.

Morada Limited is a textile company based in Altham, Lancashire. Morada specializes in curtains.

The manufacture of textiles is one of the oldest of human technologies. To make textiles, the first requirement is a source of fiber from which a yarn can be made, primarily by spinning. The yarn is processed by knitting or weaving, which turns yarn into cloth. The machine used for weaving is the loom. For decoration, the process of colouring yarn or the finished material is dyeing. For more information of the various steps, see textile manufacturing.

<span class="mw-page-title-main">Artificial silk</span>

Artificial silk or art silk is any synthetic fiber which resembles silk, but typically costs less to produce. Frequently, "artificial silk" is just a synonym for rayon. When made out of bamboo viscose it is also sometimes called bamboo silk.

<span class="mw-page-title-main">Bamboo textile</span> Textile made from various parts of the bamboo plant

Bamboo textile is any cloth, yarn or clothing made from bamboo fibres. While historically used only for structural elements, such as bustles and the ribs of corsets, in recent years different technologies have been developed that allow bamboo fibre to be used for a wide range of textile and fashion applications.

Many materials have been used to make garments throughout history. Grasses, furs and much more complex and exotic materials have been used. Cultures like the Arctic Circle, make their wardrobes out of prepared and decorated furs and skins.[1] Different cultures have added cloth to leather and skins as a way to replace real leather. A wide range of fibers, including natural, cellulose, and synthetic fibers, can be used to weave or knit cloth. From natural fibers like cotton and silk to synthetic ones like polyester and nylon, most certainly reflects culture.

<span class="mw-page-title-main">Cellulose fiber</span> Fibers made with ethers or esters of cellulose

Cellulose fibers are fibers made with ethers or esters of cellulose, which can be obtained from the bark, wood or leaves of plants, or from other plant-based material. In addition to cellulose, the fibers may also contain hemicellulose and lignin, with different percentages of these components altering the mechanical properties of the fibers.

John Rex Whinfield CBE was a British chemist. Together with James Tennant Dickson, Whinfield investigated polyesters and produced and patented the first polyester fibre in 1941, which they named Terylene equal to or surpassing nylon in toughness and resilience. He was born in Accrington, but moved out of town before the age of 4.

<span class="mw-page-title-main">Cellatex</span> Former French textile company.

Cellatex SA is a former French rayon spinning company, founded in 1981 on the basis of a business established in 1902 in Givet, Ardennes (France), and liquidated in 2000.

References

  1. Garrett, Alfred (1963). The Flash of Genius . Princeton, New Jersey: D. Van Nostrand Company, Inc. pp.  48–49.
  2. Inventive Genius . New York: Time-Life Books. 1991. p.  52. ISBN   978-0-8094-7699-2.
  3. Day, Lance; Ian McNeil (1998). Biographical Dictionary of the History of Technology. Taylor & Francis. p. 113. ISBN   978-0415193993.
  4. Woodings, Calvin R. "A Brief History of Regenerated Cellulosic fibers". WOODINGS CONSULTING LTD. Archived from the original on 22 April 2012. Retrieved 26 May 2012.
  5. Loasby, G. (1951). "The Development of the Synthetic Fibres". Journal of the Textile Institute Proceedings. 42 (8): P411–P441. doi:10.1080/19447015108663852.
  6. World of Chemistry. Thomson Gale. 2005. Archived from the original on 28 October 2009. Retrieved 1 November 2009.
  7. Allen, P (1967). "Obituary". Chemistry in Britain.
  8. Frank Greenaway, 'Whinfield, John Rex (1901–1966)', rev. Oxford Dictionary of National Biography, Oxford University Press, 2004 accessed 20 June 2011
  9. Man-Made Fibers Continue To Grow Archived 28 April 2016 at the Wayback Machine , Textile World
  10. J E McIntyre, Professor Emeritus of Textile Industries, University of Leeds, UK (ed.). Synthetic fibers: Nylon, polyester, acrylic, polyolefin. Woodhead Publishing - Series in Textiles. Vol. 36. Cambridge. Archived from the original on 17 July 2011. Retrieved 21 April 2010.
  11. Katsnelson, Alla (2015). "News Feature: Microplastics present pollution puzzle". Proceedings of the National Academy of Sciences. 112 (18): 5547–5549. Bibcode:2015PNAS..112.5547K. doi: 10.1073/pnas.1504135112 . PMC   4426466 . PMID   25944930.

Further reading