Process for improving the compressive strength of PBO fibers and PBO fibers obtained by said process.

摘要

The process for improving the compressive strength of fibers PBO PBO fibers obtained by said process relates to a method of improving the performance against axial compression of polymeric fibers of PBO by treatment of cold plasma in nitrogen and the PBO fibers obtained by said process with a better resistance to axial compression. The process of the invention to improve the compressive strength of PBO is based on surface modification of PBO fibers by exposure to a plasma for 1 to 10 minutes at powers between 70 and 150 W using nitrogen high purity as treatment gas.