▎ 摘　　要

NOVELTY - A IV-type hydrogen bottle thermoplastic type liner comprises three-layer structure comprising 95-80 wt.% modified nylon and 5-20 wt.% nylon elastomer as the inner layer, ethylene-vinyl alcohol copolymer and bonding resin as the intermediate layer, and modified nylon as the outer layer. The modified nylon comprises graphene, copolymerized nylon, heat stabilizer and compatibilizer I for modified granulation. The modified nylon comprises ethylene-vinyl acetate copolymer, nylon 6, lubricant, compatibilizer II for modified granulation. USE - IV-Type hydrogen bottle thermoplastic type liner. ADVANTAGE - The product has improved overall heat resistance and overall toughness.