MATIERE PLASTIQUE RENFORCEE PAR DES FIBRES.

摘要

There are disclosed fiber-reinforced plastic materials with a composite structure including at least two kinds of fibers as reinforcing materials, which have reciprocal thermal expansion and contraction properties, and a synthetic resin as a matrix. The fiber-reinforced plastic materials of the present invention have the excellent advantages of exhibiting an extremely small degree of deformation caused by their thermal contraction, even when used under cryogenic circumstances.