| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to production of fluoropolymer powdered materials. A modified fluoropolymer powdered material is obtained. A suspension of solid fluoropolymer particles from a group comprising a fluoroethylenepropylene polymer and a polymer of perfluoroalkoxy compounds together with PTFE particles in an aqueous liquid carrier is obtained. The aqueous suspension is frozen. The frozen carrier is removed by sublimation at pressure below atmospheric pressure to obtain dry fluoropolymer particles, which are modified by presence of PTFE modifier in powder form.EFFECT: method of obtaining fluoropolymer powdered materials is disclosed.14 cl, 3 dwg, 1 ex |
