Manufacturing method of hollow molded article touching high pressure hydrogen

摘要

SubjectProblem to be solved: to provide a method of producing a hollow molded product which is capable of contacting a high pressure hydrogen comprising a polyamide resin composition wherein the occurrence of a defect point or cracking is suppressed even if the filling and releasing of high-pressure hydrogen are repeated.SolutionManufacturing method of hollow molded articleThe process of forming a hollow molded article by injection blow molding using a polyamide resin compositionThe polyamide resin composition contains 100 parts by weight of polyamide 6 resin (a) 70 to 99 parts by weight and 1 to 30 parts by weight of impact material (b)A polyamide resin composition comprising a metal halide (c) of 0.005 to 1 parts by weight;When the polyamide resin composition was measured at 260 ° C., the melt tension was more than 20 MNIt is characterized that the pulling speed at the time of rupture measured at 260 ° C. is 50 m / min or more.Manufacturing method of hollow molded article to touch high pressure hydrogen.No selection