be used to convert polymers into a vast range of different products. each of the other units in the polymers section describes the manufacture, properties and uses of an individual polymer or group of polymers in more detail. polymers are large molecules, a type of macromolecule. their chemical properties...
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what follows has been gleaned from a great many sites, often contradictory, all of whom i however thank. grant de volson wood ( ) was born on feb. , , the second of four children, to quaker and presbyterian parents, on a modest farm near anamosa, a small community located east of cedar rapids, iowa....
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afff, contains perfluoroalkyl and polyfluoroalkyl substances, known as pfas. the man-made chemicals, which have been used since the s in products ranging from nonstick cookware to water- and stain-repellent fabrics, have been linked to an increase in cancer risks, birth defects and other health problems...
by its sources textile school mar , fiber is a fine hair-like structure and is considered the raw materials of textiles. the fiber is extracted from various sources for commercial use. in addition to obtaining from animals, plants, and minerals, many of the fibers are... textiles carbon fibers - the...