| 第 38 卷第 6 期 |  | Vol. 38 No. 6 | | 2008 年 12 月 | Dec 2008 |
|
所屬欄目：功能材料
新型光引發(fā)劑修飾蒙脫土及其光固化環(huán)氧丙烯酸酯納米復合材料的制備和表征 |
| 陳白秋1，臧陽(yáng)陵1，2，劉光鵬3，徐偉箭3
（1. 湖南海利化工股份有限公司，湖南 長(cháng)沙 410007；2. 湖南化工研究院，湖南 長(cháng)沙 410007；3. 湖南大學(xué)高分子研究所，湖南 長(cháng)沙 410082） |
| 摘 要：通過(guò)4-溴甲基二苯甲酮與二甲基正十八胺反應合成長(cháng)鏈型季銨鹽光引發(fā)劑苯甲酰芐基二甲氨基十八烷基溴化銨，插層修飾蒙脫土；通過(guò)層間引發(fā)聚合的方法光固化制備環(huán)氧丙烯酸酯／蒙脫土納米復合材料。XRD和TEM分析結果表明，蒙脫土在光固化復合材料中已得到插層和部分剝離；T0GA及力學(xué)性能測試結果表明，環(huán)氧丙烯酸酯／蒙脫土光固化納米材料的熱穩定性、拉伸強度、彈性模量及斷裂伸長(cháng)率得到了顯著(zhù)提高。 |
| 關(guān)鍵詞：長(cháng)鏈型光引發(fā)劑；有機修飾蒙脫土；光固化；環(huán)氧丙烯酸酯／蒙脫土納米復合材料 |
| 中圖分類(lèi)號：TQ050.4+3 文獻標識碼：A 文章編號：1009-9212（2008）06- 0048-04 |
|
| Preparation and Characterization of Novel Potoinitiator Organically-modified MMT and its EA／MMT UV-cured Nanocomposites |
| CHEN Bai-qiu1，ZANG Yang-ling1，2，LIU Guang-peng3，XU Wei-jian3
（1. Hunan Haili Chemical Industry Co.，Ltd，Changsha 410007，China；2. Hunan Research Institute of Chemical Industry，Changsha 410007，China；3. Macromofecule Institule，Hunan University，Changsha 410082，China） |
| Abstract：The EA／MMT uv-cured nanocomposites were prepared using modified clays and epoxy resin via intra-gallery UV-curing polymerization and the organic modified clays were used as the only photoinitiator. The organic modified clays were modified by novel long-chain type quarternary ammonium salt photoinitiator benzoylbenzyl-N，N-dimethyl-N-octadecylammonium bromide which was synthesized by the reaction of 4-bromomethyl benzophenone with octadecyl dimethyl amine. The morphology of the UV-cured EA／MMT nanocomposites prepared from this organically-modified MMT has been studied using XRD and TEM，and the results have shown an intercalated structure with partially exfoliation for all the samples. Experimental results from TGA and mechanical property testing have also indicated that the thermal and mechanical properties of UV-cured nanocomposites was significantly enhanced. |
| Key words：long chain potoinitiator；organically-modified MMT；UV-curing；EA／MMT nanocomposites |
|
基金項目：湖南省科技計劃項目（S2007F123）。
|
作者簡(jiǎn)介：陳白秋（1972-）男，湖南益陽(yáng)人，工程師，主要從事精細化工研究。
|
收稿日期：2008-12-23
|
|