填料

Abstract(#br)Mixed matrix membranes were prepared by incorporating ZSM-5 zeolite particles into polydimethylsiloxane. A uniform dispersion of the zeolite in the membrane was obtained. The membranes were characterized with scanning electron microscopy, and the effects of zeolite loading on membrane performance were evaluated. It was found that 80\u003cce:hsp sp=\"0.25\"/\u003ewt.% ZSM-5 loading was optimal for selectivity.

工业填料广泛应用于有机硅密封胶的工业生产中，如CaCO3填充聚二甲基硅氧烷( PDMS )，碳酸钙的表面性质易受吸附水和化学改性剂的影响，导致复合材料的流变性能不同。然而，由于表面形貌、官能团和孔结构的多重贡献，很难对其进行表征。本工作采用反相气相色谱法( IGC )通过表面能区分表面性质，通过正构烷烃( C7 ~ C10 )测定分散作用，环己烷、苯、三氯乙烯、四氯乙烯评价特定组分。碳酸钙在改性表面表现出不同的分散作用和不同的比组分。说明碳酸钙填料与PDMS之间的分散作用影响了所形成复合材料的黏度。