HDPE/MPA共混物层状结构及阻隔性能研究

将少量对烃类溶剂具有高效阻作用的阻隔性树脂－改性尼龙与高密度聚乙烯共混，通过对共混工艺条件和分散相ＭＰＡ形态的控制，可获得具有高阻性能的ＨＤＰＥ／ＭＰＡ共混材料。

LAMINAR STRUCTURES AND BARRIER PROPERTIES FOR HDPE/MPA BLENDS

Small amount of a modified nylon(MPA) barrier material that has high barrier properties to hydrocarbon solvents were blended with high density polyethylene(HDPE). The high barrier effects are obtained by controlled blending technique conditions and morphology of dispersed phase. Present work studies rheological characteristics of blending ingredients, base conditions of forming laminar structure, morphology of laminar dispersed phase and solvent barrier properties of blends in blowmolding by using Haake torque rheometer, analysis of SEM and measuring barrier properties. It is suggested that it is good to form laminar structure of dispersed phase MPA in lower shear rate. It is also shown that there is laminar net structure along the wall of a container blowmolded from the SEM photographs.