摘要
在環氧樹脂中加入不同比例之聚酯型PU（PBA500, PBA1000, PBA2000）和聚醚型PU（PPG1061, PPG3201）的預聚物，與一定比例之硬桿狀液晶原（C12H10O），使其與環氧樹脂一起反應硬化成型後，形成一熱固性自我補強（self-reinforcement）材料。此環氧樹脂分子結構中皆具有硬棒狀結構，藉由液晶硬捍結構特殊性質，而產生具自我補強性質之分子複合材料。以拉力試驗機測試材料之抗張強度（Tensile Strength），並測試材料之破壞能量（Fracture Energy, GIC）及Izod耐衝擊強度（Izod Impact Strength），並比較其間之差異性。
並列摘要
The epoxy molecular composite was prepared from the reaction of the hydroxyl group in the mesogenic compound with the isocyanate group in the polyurethane-crosslinked epoxy. Polyurethane (PU) prepolymers based on poly ((butylenes adipate ) (PBA) glycol and poly (propylene) glycol (PPG) and different molecular weight were employed as a crosslinking agent to the epoxy. Mesongenic compound was acted as a reinforcement of the epoxy. Then the epoxy resin was cured with a tertiary amine catalyst to from a self-reinforcement molecular composite.The studies on tensile strength, fracture energy GIC values and Izod impact strength for the epoxy molecular composites were widely investigated in this article.
延伸閱讀
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