Fluoroelastomers with perfluorinated thermoplastic fillers

• Main Authors: VOHWINKEL STEFFEN, MCBRIDE JUSTIN P, FUKUSHI TATSUO, MITCHELL MICHAEL H, BAKER JULIE A, SUZUKI YUTA
• Format: Patent
• Language: Chinese; English
• Published: 27.02.2024
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

Fluoroelastomers comprising at least 25 weight percent of a perfluorinated thermoplastic filler are described. The perfluorinated thermoplastic filler comprises a first perfluorinated thermoplastic filler having a first d50 particle size of 10 nm to 250 nm and a second perfluorinated thermoplastic filler having a second d50 particle size of 5 [mu] m to 500 [mu] m. The first thermoplastic filler may be obtained from a latex and the second thermoplastic filler may be obtained as a dry powder. Methods of making such materials and cured articles made therefrom are also described. 描述了包含至少25重量百分比的全氟化热塑性填料的含氟弹性体。该全氟化热塑性填料包含第一全氟化热塑性填料和第二全氟化热塑性填料，所述第一全氟化热塑性填料具有10纳米至250纳米的第一d50粒度，所述第二全氟化热塑性填料具有5微米至500微米的第二d50粒度。第一热塑性填料可从胶乳获得，而第二热塑性填料可作为干粉获得。还描述了制备此类材料的方法和由其制备的固化制品。