插层改性水滑石对环氧/氰酸酯基纳米复合材料力学和热稳定性的影响  

Effect of Intercalated LDHs on the Mechanical and Thermal Stability of the Epoxy /Cyanate Nanocomposites

作　　者：李俊燕[1] 

机构地区：[1]渭南师范学院复合材料研究中心,渭南714000

出　　处：《科学技术与工程》2014年第18期271-274,共4页Science Technology and Engineering

基　　金：陕西省军民融合研究基金项目(12JMR14);渭南师范学院研究生专项科研项目(12YK04Z1)资助

摘　　要：以阴离子交换法组装合成十二烷基磺酸钠(SDS)插层水滑石(LDHs-SDS),X线衍射(XRD)和红外光谱分析表明SDS已成功插层到水滑石(LDHs)层间。将插层好的LDHs-SDS应用于环氧/氰酸酯共固化体系的改性,主要探讨了LDHsSDS对环氧/氰酸酯基纳米复合材料热稳定性和力学性能的影响。研究结果表明,随着LDHs-SDS的加入,复合材料的热稳定性基本保持不变,但阻燃性得到明显改善。此外,加入适量的LDHs-SDS可以提高复合材料的弯曲性能和冲击性能。Hydrotalcite containing sodium dodecyl sulfate （LDHs-SDS） was prepared with the ion exchange method and was used to modify the epoxy/cyanate co-curing systems. X-ray scattering （XRD）, Fourier transform infrared results indicated that SDS was successfully intercalated into the interlayer of LDH. The effect of LDHs-SDS on the thermal stability and mechanical properties of the epoxy/cyanate nanocomposites was studied. The results show that the thermal stability of nanocomposites remain unchanged, but the flame retardant is notablely improved. Besides, adding the right amount of LDHs-SDS increases the flexural properties and the impact properties of nano- composites.

关 键 词：水滑石 环氧树脂 氰酸酯 纳米复合材料 插层技术 

分 类 号：TQ323[化学工程—合成树脂塑料工业]