| Abstract: | 本研究是以探討聚醚醯亞胺(PEI)與尼龍6,6(PA 6,6)的合膠性質，希望藉由聚醚醯亞胺在高溫時有相當好的機械性質來提升尼龍 6,6的耐熱性。然而，這兩個高分子的結構相異度、極性與分子量差異度高，相容性較差，故需要一相容劑做為兩高分子之橋梁，來改善相行為並補強性質。由於環氧樹脂與PEI結構相當接近，本實驗會嘗試以環氧樹脂為主成分之相容劑，期能將兩高分子混合並提升PA 6,6耐熱性，因此本實驗設計的相容劑為環氧樹脂(Epoxy 1010)與PA 6,6的嵌段共聚物，其合成方法是將Epoxy上的環氧基與己二胺進行反應接在一起，接著以適量的己二酸和己二胺發生反應形成的尼龍鹽單體，進一步在高溫高壓下縮合聚合成PA 6,6與Epoxy的嵌段聚合物，此聚合物即為本研究所使用之相容劑。本研究進一步討論相容劑成份對於合膠整體性質的影響，最後探討在不同合膠組成比例的影響。
Polyamide 6,6 (PA6,6) is one of the most important engineering plastics. It is known for mechanical property and inexpensive price, and it has change people’s life since 1940s. However, PA6,6 can not provide sufficient mechanical strength at high temperature due to its low Tg. In this study, Polyetherimide (PEI) is used to improve the thermal properties of PA6,6. Different chemical structures and intramolecular forces, however, cause incompatibility between the two polymers. To resolve this problem, block copolymers prepared with Epoxy and PA6,6 were chosen as the compatibilizers in the PA/PEI blend. Effects of the composition of the compatibilizer, concentration of the compatibilizer in the blend, as well as the composition of the blend were further investigated. |
