Table 6.

Test results of hydrogen permeability coefficient of different polymer materials under different molding processes.

Polymer	Pressure/Bar	Pe/mol H2·m/(m2·s)
Injection-molded HDPE	134	2.08 × 10−10
Extrusion-molded HDPE	104	5.51 × 10−11
Rotomolded HDPE	345	2.58 × 10−10
Extrusion-molded PA6	137	3.38 × 10−11
Compression-molded TLCP	136	7.09 × 10−13
Blow-molded PET	137	6.71 × 10−12