耐熱性SR-238/TAIC/Organoclay與SR-238/DVB/Organoclay奈米複合材料的合成與 其性質之研究

Synthesis and Properties of Novel SR-238/TAIC/Organoclay and SR-238/DVB/Organoclay Organic/Inorganic Nanocomposites

本研究以溶液插層法合成出 SR-238/organoclay、SR-238/DVB/organoclay 及 SR-238/TAIC/organoclay 等奈米複合材料。所合成出的複合材料當加入架橋劑 TAIC(Triallyl isocyanurate)[SR-238/TAIC/ATAC/clay 最佳配方用量為 2.000：2.200：0.021： 0.096]或DVB單體（p-Divinylbenzene）[SR-238/DVB/ATAC/clay最佳配方用量為2.000：3.500：0.021：0.096]時，其 Td 值可由 SR-238 純壓克力樹脂的 386.31℃分別提升至 422.68℃或 405.85℃。 當添加 DVB 或 TAIC 於 SR-238/ATAC/clay 時，皆可形成良好網狀共價鍵結並有良好熱性質，且以添加 TAIC 為佳。在三種 organoclay 中，以 TEA(Triethylamine)/clay 表現最佳的插層效果。添加有機改質黏土在 4.0%以下時 UV-Vis 光譜顯示具有高的透 明性，透光度達 90%以上。當加入有機改質黏土達 5.8%以上時，混成薄膜硬度可達 9H。由 TEM 顯示，經由這些插層劑插層後的無機黏土大部分的緊密結構已被撐開， 進而剝離成奈米級分散結構。所合成的奈米複合材料具優異熱性質與光學性質應可在光電產業、封裝貨航太工業中扮演重要角色。

The main of this research is to synthesize the nanocomposite materials of SR-238/ organoclay 、 SR-238/DVB(p-Divinylbenzene)/organoclay and SR-238/TAIC (Triallyl isocyanurate)/organoclay. When adding the DVB or TAIC as the cross-linker to the SR238/ATAC/clay, the thermal decomposition temperature (Td) are 405.85℃ or 422.68℃ respectively; these values are higher than 386.31℃ for the neat SR-238 polymer. The materials showed good thermal character and can create good reticular covalent bonding.he TEA(Triethylamine)/clay showed the best shift of the interlayer spacing. The materials have fine optical transparency in the visible region when there are 4.0% organoclay in the materials. The hardness of the materials can be as high as 9H when there are 5.8% organoclay in the materials. From TEM observations, these clays uniformly come off its layered structure and are stripped to the nano dispersion structure. The materials can play an important role in the optical element, packaging and thermal protection thin films of photoelectronic and aircraft industries.