聚氨基甲酸酯/黏土奈米複合材料之製備與性質研究

Preparation and Properties of Polyurethane/Clay Nanocomposite Materials

葉日豪(Ze-Hau Yeh)

指導教授 ： 葉瑞銘

中原大學/理學院/化學研究所/碩士(2002年)

https://doi.org/10.6840/cycu200200489

摘要

摘 要

有機/無機奈米複合材料是目前熱門的研究主題之一，主要利用有機高分子以及無機物質（黏土）兩者之特性相乘而形成奈米複合材料（Nanocomposites）。本論文第一步是利用polycaprolactone, isophorone diisocyanate, dimethylolpropionic acid, triethyl amine, ethylene diamine等多種化學原料合成具水分散性之PU，第二步是將百康公司PK802分散於水中，然後在電磁攪拌下將分散於水中的黏土慢慢加入水性PU混合均勻，將此混合物水分除去後，即可得PU/clay複合材料，此種PU/clay奈米複合材料經x-ray 及 TEM測試證實確實已達到奈米級分散的程度。在PU/clay組成中發現clay佔1﹪時其modulus為原始PU的2倍且其伸長率保持不變，此種機械強度（modulus）的增加為此篇論文的重點之一。其次，由熱失重分析儀(TGA)的結果得知，黏土的填加可有效的提高熱失重溫度(Td)。

關鍵字

聚氨基甲酸酯 ； 黏土

並列摘要

ABSTRACT

Nanocomposites possess vastly unique high properties which are contributed simultaneously organic polymer and inorganic fine powder. In this thesis, a novel segmented water base polyurethane/clay (PU/clay) nanocomposite based on polycaprolactone, isophorone diisocyanate, dimethylol propionic acid, triethyl amine, ethylene diamine, and water swollen clay is prepared. Water Base PU blending with water swollen clay approaching a nanocomposite form as comfirmed by X-ray diffraction and TEM studies. In mechanical properties, about 1% clay in PU/clay results in a large increase in the modulus and almost keep constant in the elongation. This phenomenon is the major point of the paper. From TGA data, increasing of clay content will shift Td to much higher temperature.

並列關鍵字

Clay ； Polyurethane

參考文獻

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