| http://www.w3.org/ns/prov#value | - Surface characteristics of a fiber or membrane can be modified by a number of methods, for example, by chemical reaction including wet or dry oxidation, by coating the surface through deposition of a polymer thereon, by grafting reactions which are activated by exposure to an energy source such as heat, a Van der Graff generator, ultraviolet light, or to various other forms of radiation, and by tr
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