Method for determination of effective radius of pores in structure of polymer composite materials on basis of directed fiber fillers

摘要

Method for determination of effective radius of pores in structure of polymer composite materials on basis of directed fiber fillers in which one performs curing of soaked directed fiber component at given tension force at soaking and drying, one performs microsection of its cross section in transverse to fiber direction, in cut of microsection one experimentally studies distribution of lengths among neighboring fiber at pre-set number of measurements, one obtains in such way experimental histogram or distribution function for pores by dimensions, one finds relationship for theoretic distribution curve G() for pores by dimensionin structure of microsection of cured fiber composite, one determines volume of pores, specific surface, roughness of surface and tortuosity as characteristics of equivalent cylindrical capillary.