聚醯胺6/含磷氧化石墨複合材料之製備與性質研究

本研究探討以原位聚合法製備聚醯胺6/氧化石墨及聚醯胺6/含磷氧化石墨複合材料。本研究之實驗（I）將石墨進行改質，分為兩個部份，第一步以Hummer method製備氧化石墨，第二步將反應型磷系阻燃劑DOPO (9,10-dihydro-9-oxy-10- phosphaphenanthrene-10-oxide)接枝於氧化石墨表面上使氧化石墨帶有含磷基團(DOPO-GO)，並藉由FTIR、SEM、EDS進行分析。本研究之實驗（II）利用己內醯胺(ε-caprolactam，CPL)聚合成 PA6 的過程中，添加不同比例的氧化石墨，經過聚合、純化、乾燥之程序製得PA6/GO的複合材料試樣；並以同樣的流程製備出PA6/DOPO-GO複合材料。並探討其熱性質、機械性質、功能性。 ATR-FTIR結果說明添加粉體並未出現與純PA6不同之官能基特徵峰或是造成偏移現象。由SEM觀察複合材料表面型態之分散狀況。TGA分析PA6複合材料之熱裂解溫度及成炭率。紅外線熱影像溫差測試分析發現複合材之料升溫速率、降溫速率隨粉體添加量之增加而升高。最後以限氧指數儀進行難燃測試，顯示添加3% DOPO-GO的材料有較好的阻燃效果。

關鍵字

聚醯胺6 ；原位聚合法；氧化石墨

並列摘要

In this study, preparation and characterizations of composite materials, Polyamide 6/ graphite oxide and polyamide 6/ phosphorus-containing graphite oxide were investigated. At part I, There are two steps about the surface modification of graphite. In the begining, graphite oxide (GO) was synthesized by Hummer method; then, a Phosphorus -containing flame retardant was grafted on the surface of graphite oxide (GO) through the reaction of DOPO with epoxy group on the surface of GO to form DOPO-GO.Finally,they were analyzed by FT-IR, SEM, EDS. At part II, the GO with various ratios were added to ε-caprolactam during the synthetic process of PA 6 (Polyamide 6). Such PA 6/GO composites were prepared by purification and vacuum drying procedure.The PA 6/DOPO-GO composite were obtained by the same process as to fabricate PA 6/ GO composites.The thermal behaviors, mechanical and Functional properties were also investigated. ATR-FTIR analysis showed neither new group was made nor phenomenon of displacement was happened. The surface analysis was observed by SEM. The decomposition temperature and char yield of the PA6 composites were analyzed by TGA. The infrared thermal imager was used to measure the thermal conductive properties of composites. The result of limiting oxygen index (L.O.I),showed that 3 wt.% added DOPO-GO composite had the optimal flame retardant property.

並列關鍵字

polyamide 6 ； in-situ polymerization ； graphite oxide

參考文獻

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聚醯胺6/含磷氧化石墨複合材料之製備與性質研究

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