聚醯胺 6/ 埃洛石奈米管複合材料製備與功能性之研究

Synthesis and Functional Properties of Polyamide 6/Halloysite Nanotube Composites

秦治平(C. P. Chin) ； 張景棠(J. T. Chang) ； 劉仁湧(J. Y. Liu) ； 黃富亮(F. L. Huang) ； 鄭國彬(K. B. Cheng) ； 李美惠(M. H. Lee)

《紡織綜合研究期刊》 27卷3期 (2017/07) Pp. 1-13

https://doi.org/10.6439/TTRJ.201707_27(3).0001

摘要

本研究探討了埃洛石奈米管粉體於水性溶液中之分散性，探討改變懸浮液pH 值對對埃洛石奈米管粉體表面電位之影響，並將此水性埃洛石奈米管懸浮液添加在聚醯胺6 原位聚合法製程中，合成出聚醯胺6/ 埃洛石奈米管複合材料，並分析其化學結構，分析相對黏度進行可紡性評估、TGA 及DSC 做熱性質分析、拉伸測試做力學性質分析、SEM 觀察拉伸斷面之破壞方式，最後以表面溫差分析及防燃測試為功能性分析與評估。經過研究結果後發現：固含量11wt% 之埃洛石奈米管懸浮液在鹼性狀態下具有較好的分散性。而添加量1.0wt% 之聚醯胺6/ 埃洛石奈米管複合材料較佳之熔融狀態相對黏度值為3.574，0.5wt% 之聚醯胺6/ 埃洛石奈米管複合材料有最佳之最大應力值93.27MPa、最大應變497.78%。聚醯胺6/ 埃洛石奈米管複合材料經功能性測試後發現：隨著埃洛石奈米管固含量的增加，複合材料的蓄熱保溫及防燃性會隨之增加，未來可望應用在防燃型工程塑膠、汽車內及傢飾紡織品等終端用途。

關鍵字

埃洛石 ； 聚醯胺6 ； 原位聚合法 ； 限氧指數

並列摘要

This study investigated the dispersion ability of halloysite nanotubes (HNTs) in aqueous suspension with different pH value. These suspensions were added during the in-situ polymerization of polyamide 6 (PA6) to synthesize composites which are consist of polyamide 6 matrix and halloysite nanotubes additives (PA6/HNTs). FT-IR was used to analyze the chemical structure composites. The relative viscosity property, TGA and DSC thermal behaviors of composites were also analyzed to evaluate the melt spinning ability. The tensile strength, heat-retention and limit oxygen index (L.O.I) were measured to evaluate the functional properties. The zeta potential measurement of HNTs suspension presents higher dispersion ability in alkaline environment. The synthesized PA6/HNTs composites exhibits a relative viscosity is 3.574 in melting state. Increase the HNTs content from 0.5wt% to 10.0wt%, the warm retention and L.O.I of composites were increased. This work of PA6/ HNTs composites reveals its applications as fireproof engineering plastic, automotive interior and furniture textiles end-use.

並列關鍵字

Halloysite ； polyamide 6 ； in-situ polymerization ； limit oxygen index (L.O.I.)