Composite materials comprising PPTA and nanotubes

摘要

The present invention, the aspect ratio is more than 100, and the cross-sectional diameter of less than 5nm nanotubes and PPTA (poly -p - relates to a composite material comprising a phenylene terephthalamide), the composite material containing the nanotubes to more than 12% by weight, was added to the nanotubes to sulfuric acid, by lowering the temperature to solidify the mixture, PPTA was added to the solid mixture, the mixture is heated to exceed the solidifying point of the sulfuric acid to the mixture, and spinning the mixture, was obtained by casting or molding it is possible to ensure that the composite material. The method includes an aspect ratio of 100 or more and a cross-sectional diameter of 5nm or less applying the nanotubes to sulfuric acid at a temperature higher than the solidifying point of the sulfuric acid step (a), lowering the temperature to below the solidifying point of the sulfuric acid was sufficient to solidify the mixture mixing for a time (b), applying the PPTA to the solid mixture (c) and the mixture was heated to a temperature exceeding the solidification point of sulfur includes the step (d) of mixing. ; composite materials, nanotubes, PPTA, sulfuric acid, solidifying point