▎ 摘　　要

NOVELTY - High thermal conductivity and low gas permeability fluororesin tube comprises 60-95 wt.% fluororesin, 0.5-30 wt.% thermally conductive flat filler with a maximum particle diameter of less than 3 mu m, and 0.5-10 wt.% filler in the form of nano-sized thermally conductive fibers. USE - The high thermal conductivity and low gas permeability fluororesin tube is useful for heat exchanger (claimed). ADVANTAGE - The fluororesin tube reduces gas permeability of the tube and improves thermal conductivity; prevents corrosion or contamination of the chemical solution, improves overall heat transfer coefficient by about 2 times compared to the conventional one due to the improvement of the thermal conductivity of the tube, and can be miniaturized by reducing the volume of the heat exchanger.