We reported a novel and effective strategy to achieve higher continuity at a lower volume fraction of interphase by using compatibilizers in ternary blend consisting of PVDF, PS and HDPE. PVDF-g-PS was synthesized by electron beam radiation induced free radical graft copolymerization reaction and PVDF-g-PS was characterized by FTIR, DSC and ¹H NMR. PVDF-g-PS showed effective compatibilization in PVDF/PS binary blend. The phase size of PVDF/PS binary blend was decreased at addition of PVDF-g-PS. For phase morphology development, morphology of uncompatibilized PVDF/PS/HDPE (52/6/42 vol%) ternary blend revealed a part of PS droplets situated in PVDF/HDPE interface, the other part was located inside HDPE phase. Whereas, compatibilized blend showed more and more PS migrate to PVDF/HDPE interface. When adding 7% PVDF-g-PS, PS droplets formed into uniform layer self-assembly arrayed at interface, then tri-continuous morphology was formed and continuity of PS phase increased by 32%, ultralow percolation threshold ternary blend was successfully achieved.

我们报告了一种新颖有效的策略，可通过在由PVDF，PS和HDPE组成的三元共混物中使用增容剂来在较低的相间体积分数下实现更高的连续性。通过电子束辐射诱导的自由基接枝共聚反应合成了PVDF-g-PS，并通过FTIR，DSC和^1对PVDF-g-PS进行了表征。1 H NMR。PVDF-g-PS在PVDF / PS二元共混物中显示出有效的相容性。加入PVDF-g-PS后，PVDF / PS二元共混物的相尺寸减小。对于相形态发展，未相容的PVDF / PS / HDPE（52/6/42 vol％）三元共混物的形态揭示了一部分PS液滴位于PVDF / HDPE界面，另一部分位于HDPE相内部。而相容的共混物则表明越来越多的PS迁移至PVDF / HDPE界面。当加入7％的PVDF-g-PS时，PS液滴形成均匀的自组装排列在界面上，然后形成三连续形态，PS相的连续性增加了32％，成功地实现了超低渗滤阈值的三元共混。