An additive potassium titanate whisker polyimide fiber paper and its preparation method

The present invention discloses a polyimide fiber paper and its preparation method for adding the whiskers, the present invention is easy to flocculation by ultrasonic dispersion, the dispersed hard polyimide fibers, to improve its dispersion in water; potassium titanate whisker is added using a silane coupling agent modifying treatment, use of its excellent mechanical properties, corrosion resistance, heat insulation and high electrical insulation characteristics, improvement in the strength of the polyimide fiber paper performance; with a large surface area, high surface activity of the para-aramid pulp fibers or para-aramid fibrids as a binder fiber, to form a "fiber - whiskers" slight wrap, polyimide fibers to improve paper the interfacial bonding strength, and a polyimide fiber, potassium titanate whisker and fiber hybrid integrated effect on performance para-aramid pulp / fibrid, polyimide fibers to improve paper, so that it can be resistant high temperature insulation materials, filter materials, refractory materials, and radiation resistant applications better honeycomb material.