Method for preparing a porous fluoropolymer and preparing an article of same, a rigid porous fluoropolymer flow sleeve and a method of controlling flow

摘要

A rigid flow control device includes a porous rigid body having an outer surface and an inner surface. The body defines a flow path and is formed from a material operatively arranged with a surface energy less than that of the fluid for passively impeding an undesirable component of the fluid more than a desirable component of the fluid.