Rubber fibers

Professional scientific controlling instruments Manufacture of engineering, laboratory, and research instruments and associated equipment Metals, plastics, resins, glass, wood, rubber, fibers, abrasives... 

A device that effectively seals a pump against leakage around the shaft by means of various rubber/fiber packing materials. 

FIGURE 12.18 Stress-strain curves of rubber-fiber composites developed for solid rocket motor insulator A, ethylene-propylene-diene monomer (EPDM) rubber-carbon fiber composites B, EPDM mbber-melamine fiber composites C, EPDM mbber-aramid fiber composites and D, EPDM rubber-aramid pulp composites. 1 and 2 stands for unaged and aged composites respectively. Carbon fiber- and melamine fiber-reinforced composites contain resorcinol, hexamine, and silica in the concentrations 10, 6 and 15, respectively and aramid fiber- and aramid pulp-based composites contain resorcinol, hexamine, and silica in the concentrations 5, 3 and 15, respectively. (From Rajeev, R.S., Bhowmick, A.K., De, S.K., and John, B., Internal communication. Rubber Technology Center, Indian Institute of Technology, Kharagpur, India, 2002.)... 

Polymers are very large organic molecules that are either made synthetically or are of natural origin, and find use as plastics, rubber, fibers, and coatings. Polymers were first produced commercially in 1860 by modification of cellulose from wood or cotton, followed by a fully synthetic product made from phenol and formaldehyde in 1910. 

Miller ML Acrylic acid polymers. In Bikales NM (ed) Encyclopedia of Polymer Science and Technology, Plastics, Resins, Rubbers, Fibers, Vol 1, p 197. New York, Interscience, 1964... 

Dyeing. Spandex fibers have an affinity for dispersed or acid dyes rubber fibers normally cannot be dyed. 

Graft copolymerizations have been often employed in industries of plastics, rubber, fiber, adhesives and so on. In most of these cases the gross polymerization product is subjected to processing without isolating the pure graft copolymer. It is well known that the physical properties of the product are closely related to its superstructure, which in turn is a function of both the content and the chemical structure of the graft copolymer present in the product. Therefore, the characterization of the graft copolymer is also desirable to control the product property. 

Science Technology, Plastics, Resins, Rubbers, Fibers Supplement Vol. 1—Acrylonitrile Polymers, Degradation to Vinyl Chloride, Herman F. Mark, Norbert M. Bikales, Eds., p. 521, Wiley-Interscience, New York, 1976. 

Elastomeric fibers can be made out of natural rubber. Rubber latex, which is a suspension of rubber spheres in water, is mixed with a vulcanizing agent, and the mixture is wet spun. The fibers from the spinneret are extruded into a coagulating bath and then vulcanized to produce the cross-linking of chains. Such fibers are used in woven and knitted fabrics, and more often than not they are mixed with other textile fibers to form fabrics for garments. Most natural rubber fibers, however, have been supplanted by synthetic elastomeric fibers, especially in the area of athletic wear. This is attributable to the poor dyeability, abrasion resis-... 

Figure 4.8 cont.) (b) Specific stress-strain curves of Lycra (Spandex) and natural rubber fibers (Wilson, 1967,1968). 

The husk is 5-10-cm-thick fibrous cover adhering to the coconut shell. Like the shell, it is also used mainly for fuel in farms. Products derived from the husk are coir, bristle, rubberized fiber, rope, geotextiles, and activated carbon. 

U.S. industry is the largest overall supporter of chemical R D. Between 1999 and 2003, about 20 billion a year was spent on basic chemicals, resin, synthetic rubber, fibers, and filaments, pharmaceuticals and medicines related R D.4 Individual companies often operate their own R D labs, and many provide funds for academic research in targeted areas related to their areas of interest. Industrial funding for research and development in academic science and engineering (S E) fields reached an all-time high of... 

S. A. Stem, F. J. Onoraio, and C. Libove, The Permeation of Gases through Hollow Silicone Rubber Fibers Effects of Fiber Elasticity on Gas Permeability, AIChEJ., 23, 567 (1977). 

Spandex has better mechanical and physical properties than rubber fiber in terms of tenacity, modulus, anti-aging, linear density, and dye ability. Dry spun spandex has round, oval, or dumbbell shaped filament cross-sections, while wet spun spandex has mainly irregular filament profiles. In some spandex fiber, the filament fusion can be so strong that fibers merge into one another. Melt spun spandex is produced as monofilaments or multifilaments of predominantly round cross-sections and smooth surface. 

Mar Mark, H.F. (ed.) Encycyclopedia of polymer science and technology - Plastics, resins, rubbers, fibers. Vol. 7 Fire retardancy to isotopic labeling. Interscience Publ., New York, 1967. 

Polymers are our molecular views on certain chemical substances. The views have been established in our long-lasting exploration and exploitation of materials in nature. The term polymers is commonly used to describe a broad range of materials, from synthetic materials, such as plastics, rubbers, fibers, coatings, filtration membranes, adsorption resins and adhesives to natural materials, such as cellulose, starches, natural rubbers, sOks, hairs, and chitins and even to the prototypes of bio-macromolecules, such as DNA, RNA and proteins, which are the basic substances for highly diverse creatures. 

Rubber Fibers Effects of Fiber Elastici on Gas Pnmeabyity, AlChE J., 23, 567 (1977). 

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