PBS/蒙脱石纳米复合材料的制备及性能  

Preparation and Properties of Poly(butylene succinate)/Montmorillonite Nanocomposites

作　　者：石瑞[1] 李世杰[1] 李祥[1] 袁继祖[2] 吴选军[1] 

机构地区：[1]武汉理工大学化学工程学院,武汉430070 [2]武汉理工大学资环学院,武汉430070

出　　处：《非金属矿》2011年第5期15-17,共3页Non-Metallic Mines

摘　　要：采用自制有机改性蒙脱石(OMMT)和聚丁二酸丁二醇酯(PBS)通过溶液插层法制备出PBS/蒙脱石纳米复合材料,利用XRD、TG-DSC和FTIR等测试手段对其结构与性能进行表征,考察了不同蒙脱石填充量(0 wt%、2 wt%、5 wt%和8 wt%)对纳米复合材料结构和性能的影响。结果表明,PBS被成功地插入蒙脱石片层间,使蒙脱石片层间距增大,并导致d001衍射峰消失;随着蒙脱石填充量的增加,纳米复合材料的耐热性能增强,玻璃化转变温度Tg值显著降低,当填充量达5 wt%时,Tg值降到最低,为-37.7℃,但当填充量达8 wt%时,过多的蒙脱石片层导致PBS基体Tg值出现反弹,但其熔融焓ΔHm出现显著降低。Poly（butylene succinate）/montmorillonite nanocomposites were prepared by solution-intercalating method using organo- modified montmorillonite（OMMT） and poly（butylene succinate）（PBS） as raw materials. The structure and properties of these nanocomposites were characterized with XRD, TG-DSC and FT1R etc methods. The effect of OMMT content（0 wt%, 2 w#/o, 5 wt% and 8 wt%）on their structure and properties was investigated. The results indicate that PBS macromolecules are successfully intercalated into the interlayers of montmorillonite because the diffractive peak of d001 for montmorillonite interlayer disappears completely. With the increasing of the OMMT content, the thermal properties improve, and the glass-transition temperature （Tg） decreases obviously. Tg reachs -37.7℃when the content is 5 wt%. It rebounds to -18.0 ℃and AHm decreases sharply when the OMMT-loading content is 8 wt%.

关 键 词：聚丁二酸丁二醇酯 有机改性蒙脱石 纳米复合材料 溶液插层 表征 

分 类 号：TB332[一般工业技术—材料科学与工程]