METHOD OF THE RADIATION-CHEMICAL MODIFICATION OF THE POLYTETRAFLUOREHYLENE AND THE SUBSTANCE PRODUCED ON ITS BASIS

摘要

FIELD: chemical industry; radiation-chemical methods of the production of the polymeric materials with the improved complex of properties.;SUBSTANCE: the invention is pertaining to the field of the radiation-chemical methods of production of the polymeric materials with the improved complex of properties. The invention presents the description of the method of the radiation-chemical modification of the polytetrafluorethylene providing for treatment of the articles made out of the polytetrafluorethylene with the gamma-rays exceeding the temperature of the fusion point of the crystalline phase differing that the block and the film articles are subjected to this radiation and this radiation is conducted at presence of the molecular oxygen, at the oxygen tension of 10² - 1 mmHg. The invention also presents the description of the substance produced by the above indicated method. The technical result of the invention is production of the substance possessing the high indexes of the wear-resistance and creepage.;EFFECT: the invention ensures production of the substance possessing the high indexes of the wear-resistance and creepage.;3 cl, 3 tbl, 7 dwg, 2 ex