| abstract |
The invention provides a kind of blended fluoropolymer dispersions, it is characterized in that: tetrafluoroethylene (PTFE), it has the first temperature of fusion (T of less than 332 DEG Cn m ), be the liquid dispersion of particle, described particle has 1.0 microns (μm) median size below, and described dispersion is obtained by letex polymerization and do not stand agglomeration, thermal destruction or radiation; With perfluoro alkoxy (PFA), it is the liquid dispersion of particle, described particle has 1.0 microns (μm) median size below, and described composition has the PFA content of total solids 50 % by weight to 60 % by weight based on described PTFE and PFA and the PTFE content of 40 % by weight to 50 % by weight.Blended fluoropolymer compositions can be used for providing the coating of the impermeability with improvement, the resistance to property be infected with, wear resistance, slickness and Geng Gao contact angle. |