淀粉／豆渣／纳米蒙脱土复合发泡缓冲材料的制备及性能研究  

Preparation of Starch/Soybean Residue/Nano-montmorillonite Composite Foam Cushioning Material and Study of Its Performance

作　　者：傅阳[1] 张守华[1] 邹凯[1] 张敏[1] 

机构地区：[1]西南大学农业部农产品贮藏保鲜质量安全风险评估实验室,重庆市特色食品工程技术研究中心,重庆400715

出　　处：《包装工程》2012年第17期1-5,共5页Packaging Engineering

基　　金：“十二五”国家科技支撑计划项目(2011BAD36B02);中央高校基本科研业务费专项资金资助(XDJK2009C002);国家大学生创新性实验计划(101063535)

摘　　要：采用熔融插层法,添加不同含量的蒙脱土,制备了淀粉/豆渣复合发泡缓冲材料,对所制备的复合材料进行了表征和研究。结果表明:蒙脱土质量分数(全文同)小于3%时材料的膨胀率差异较小,而大于3%后随着蒙脱土含量的增加,膨胀率会显著降低,且3%的材料表观密度最低;5%实验组的泡孔直径最小,泡孔均匀,且材料表面无较大的泡孔,其抗吸水效果也最好;添加蒙脱土能够较显著地增加复合材料的机械强度,其中5%实验组的压缩强度最高。在4种不同有机蒙脱土添加量中,5%的添加量的淀粉/豆渣复合材料的综合性能最好。Starch/soybean residue composite foam cushioning material with montmorillonite contents were prepared by a melt-intercalation method. The characterization of the nano-composites was analyzed. The re- sults showed that there is little difference on the expansion rate when montmorillonite content is lower than 3% when montmorillonite content is above 3 %, the expansion rate decreases remarkably with montmoril lonite content; the apparent density of the composite with 3 % montmorillonite content is lowest; the one with 5% content has the smallest cell diameter, has even cell distribution, and has good effect to resist to water absorption; addition of MMT can increase the mechanical strength of the composite dramatically and the 5% MMT content has the highest compressive strength; among the four MMT content nanocomposites, the 5% one has the highest comprehensive properties.

关 键 词：淀粉 豆渣 发泡 蒙脱土 

分 类 号：TB485.1[一般工业技术—包装工程] TB487