3.Aromaticpolyamide nanofiltration membrane is prepared by the solution of aromaticpolyamide fiber via immersion precipitation phase inversion process.
4.The product is two layers of limpness composite material of polyester thin film coated with bonding agent and single surface bonding of calendaring aromaticpolyamide fiber paper.
5.Seamless belts are made of imported high strength glass fiber yarns and Kevlar (aromaticpolyamide fiber), which is knitted by a circular weaving machine into a hollow fabric, and coated with teflon resin (PTFE) in a unique technological process.
