壓克力樹脂／層狀雙氫氧化物奈米複材之合成及性質研究

Preparation and Characterization of PMMA/Layered Double Hydroxides Nanocomposites

蔡宗燕(T.Y. Tsai) ； 呂紹文(S.W. Lu) ； 李福壽(F.S. Li)

《材料科學與工程》 38卷1期 (2006/03) Pp. 29-32

https://doi.org/10.6409/JMSE.200603.0029

摘要

本研究以水熱合成法合成人工無機層狀雙氫氧化物(Layer Double Hydroxide, LDH)，並將此有機官能化的Mg-Al-K2 LDH與PMMA混成，藉由自由基聚合反應(Radical Polymrization)在層間發生的特性，製備奈米級複合材料(Nanocomposite Materials)。此奈米複材經穿透式電子顯微鏡(TEM)的鑑定其Mg-Al-K2 LDH分散於高分子基材中的型態是以剝離型態(Exfoliated)及插層型態(Intercalated)兩種形式存在於高分子基材中，亦由此其具有良好的分散性使複合材料在於熱性質與機械性質隨著K2-LDH含量的增加而有顯著的提升。

關鍵字

層狀雙氫氧化物 ； 奈米級複合材料

並列摘要

Poly (methyl methacrylate)/MgAl layer double hydroxides (PMMA/MgAl LDH) nanocomposites were synthesized by in situ free radical polymerization with the organic modified MgAl-K2 LDH in the methyl methacrylate monomer and the initiator, benzoyl peroxide. The layered staking structure of MgAl-K2 LDH is delaminated while the polymerization occurred between the layered galleries. The TEM images indicate that there are two types of nanocomposites. One is the intercalated PMMA/MgAl-K2-LDH nanocomposites and the other is the exfoliated one. Therefore, the PMMA/MgAl-K2 LDH nanocomposites do not only have well dispersed MgAl-K2-LDH in PMMA system, but also have enhanced thermal and mechanical properties as compared to the pure PMMA resin.

並列關鍵字

Poly methyl methacrylate ； Layered double hydroxide LDH ； Nanocomposites