層狀材料及奈米複合材料之合成及鑑定

Synthesis and characterization of lamellar materials and nanocomposites

彭文琴(Wen-Chin Peng)

指導教授 ： 鄭吉豐

中原大學/理學院/化學研究所/碩士(2003年)

https://doi.org/10.6840/cycu200300362

摘要

摘要
本研究是利用不同的模板試劑合成MCM-50和磷鋁層狀物，在以合成的MCM-50和磷鋁層狀物取代有機黏土，製備奈米複合材。
聚亞醯胺層狀奈米複合材料是利用二苯胺（ODA）溶解在DMAc中和分散在DMAc中的層狀物混和在加入二酸酐（PMDA）。TEM顯示大顆粒層狀物已經轉變成奈米顆粒，分散於聚亞醯胺中形成奈米複合材料，當加入MCM-50和磷鋁層狀物於聚亞醯胺中會提昇熱穩定性和機械性質，並提昇儲貯模數和增加耐燃性。
聚苯乙烯奈米複合材料的製備是利用苯乙烯和分散的層狀物進行自由基聚合反應。由 TEM顯示大顆粒層狀物已經轉變成奈米顆粒，分散於聚苯乙烯中形成奈米複合材料，當加入MCM-50和磷鋁層狀物於聚苯乙烯會提昇熱穩定性和儲貯模數並增加耐燃性。
聚苯乙烯混成製備是利用苯乙烯和磷鋁層狀物熔融混合，由XRD 顯示聚苯乙烯可使磷鋁層狀物的層間距離增加。當加入磷鋁層狀物於聚苯乙烯中會提昇熱穩定性和儲貯模數並增加耐燃性。

關鍵字

奈米複合材料

並列摘要

Abstract
MCM-50 and lamellar aluminophosphates were synthesized by using different kinds of templates and reagents in this study. Organoic-inorganic nanocomposites were prepared by using layered materials of MCM-50 and lamellar aluminophosphates instead of organophilic clay.
Polyimide nanocomposites have been synthesized from dimethylacetamide (DMAC) solution of 4,4’-oxydianiline diamine (ODA) with a DMAC dispersion of layered materials before adding pyromellitic dianhydride (PMDA). Results of TEM indicated that lamellar materials with size of 10 μm became nanoparticles and well dispersed in polyimide during the polymerization. Thermal stability and mechanical properties, storage modulus and flame retardance of nanocomposites were improved after adding MCM-50 and aluminophosphate.
Polystyrene nanocomposites were prepared by free radical polymerization of styrene containing dispersed layered materials. Results of TEM indicated that lamellar materials with size of 10 μm became nanoparticles and well dispersed in polystyrene. Thermal stability, storage modulus and flame retardance of nanocomposites were improved after adding MCM-50 and aluminophosphate.
Polymer/inorganic hybrids based on the intercalation of melting polymer chains into layered materials. Results of XRD indicated that polystyrene intercalated into lameraller aluminophosphate. Thermal stability, storage modulus and flame retardance of composites were improved after adding aluminophosphate.

並列關鍵字

composites ； nanocomposites

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