Aqueous dispersions of polymers containing vinylidene fluoride and trifluoroethylene

• Main Authors: MALANI ABHISHEK, FALCO IVAN, MILLEFANTI, STEFANO
• Format: Patent
• Language: Chinese; English
• Published: 02.12.2022
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

The present invention relates to an aqueous dispersion of a fluoropolymer comprising recurring units derived from vinylidene fluoride (VDF) in an amount of from 60% to 82% by mole relative to the total mole of recurring units and recurring units derived from trifluoroethylene (TrFE) in an amount of from 18% to 40% by mole, the fluoropolymer has an improved thermodynamically ordered structure in the ferroelectric phase. 本发明涉及氟聚合物的水性分散体，其包含以相对于重复单元的总摩尔以摩尔计从60％至82％的量的衍生自偏二氟乙烯(VDF)的重复单元和以以摩尔计从18％至40％的量的衍生自三氟乙烯(TrFE)的重复单元，所述氟聚合物在铁电相中具有改善的热力学有序结构。