Polycaprolactam(PA6)is an important engineering plastic known for its excellent strength and processability,making it widely applicable in the automotive and transportation industries.Previous studies have demonstrate...Polycaprolactam(PA6)is an important engineering plastic known for its excellent strength and processability,making it widely applicable in the automotive and transportation industries.Previous studies have demonstrated that incorporating a small amount of organic-modified montmorillonite(OMMT)can significantly enhance the gas barrier properties of PA6.Based on PA6/OMMT,this study further introduced maleic anhydride-grafted ethylene-octyl copolymer(mPOE)and polytetrafluoroethylene(PTFE).Morphological characterization revealed the successful manipulation of the microstructure within this toughening system,revealing a distinctive tassel bundle morphology in the ternary blend of PA6/mPOE/PTFE.in the quaternary PA6/OMMT/mPOE/PTFE system,scanning electron microscopy(SEM)analysis demonstrated that the special“tassel bundle(TB)”morphology could induce an ordered arrangement of OMMT nanosheets,leading to synergistic improvements in both toughness and gas barrier performance.These findings offer promising potential for applications requiring simultaneously high gas barrier properties and enhanced toughness,particularly in hydrogen storage tanks and related industrial fields.展开更多
基金financially supported by the National Natural Science Foundation of China(No.52372282)。
文摘Polycaprolactam(PA6)is an important engineering plastic known for its excellent strength and processability,making it widely applicable in the automotive and transportation industries.Previous studies have demonstrated that incorporating a small amount of organic-modified montmorillonite(OMMT)can significantly enhance the gas barrier properties of PA6.Based on PA6/OMMT,this study further introduced maleic anhydride-grafted ethylene-octyl copolymer(mPOE)and polytetrafluoroethylene(PTFE).Morphological characterization revealed the successful manipulation of the microstructure within this toughening system,revealing a distinctive tassel bundle morphology in the ternary blend of PA6/mPOE/PTFE.in the quaternary PA6/OMMT/mPOE/PTFE system,scanning electron microscopy(SEM)analysis demonstrated that the special“tassel bundle(TB)”morphology could induce an ordered arrangement of OMMT nanosheets,leading to synergistic improvements in both toughness and gas barrier performance.These findings offer promising potential for applications requiring simultaneously high gas barrier properties and enhanced toughness,particularly in hydrogen storage tanks and related industrial fields.
