采用母粒法制备纤维素纳米晶/丙烯腈-丁二烯-苯乙烯纳米复合材料。
Preparing cellulose nanocrystal/acrylonitrile-butadiene-styrene nanocomposites using the master-batch method.
机构信息
College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China; Department of Materials Engineering, Changzhou Institute of Engineering Technology, Changzhou 213164, China; Center for Renewable Carbon, University of Tennessee, Knoxville, TN 37996, USA.
College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China.
出版信息
Carbohydr Polym. 2015 Jul 10;125:352-9. doi: 10.1016/j.carbpol.2015.02.062. Epub 2015 Mar 6.
The master-batch method provides a simple way to apply cellulose nanocrystal (CNC) as reinforcement in a hydrophobic matrix. The two-stage process includes making high-CNC content (70 wt%) master batch pellets, then mixing acrylonitrile-butadiene-styrene (ABS) and maleic anhydride grafted polyethylene with the master batch pellets to prepare the ABS/CNC nanocomposite in extruder. SEM image indicates that self-assembled CNC nanosheets disperse evenly throughout the polymer matrix. The improved mechanical properties shown in tensile and DMA tests reveal that the CNC combines well with the ABS. TGA results show that the thermal degradation temperature of CNC in the master batch increases because of the protection of the ABS coating. This approach not only improves the dispersion ability and the thermal stability of CNC, but it is also applicable to use with other hydrophobic thermoplastics in industrial scale production.
母粒法为将纤维素纳米晶体（CNC）作为增强材料应用于疏水性基质提供了一种简单的方法。该两阶段工艺包括制备高 CNC 含量（70wt%）的母粒颗粒，然后将丙烯腈-丁二烯-苯乙烯（ABS）和马来酸酐接枝聚乙烯与母粒颗粒混合，在挤出机中制备 ABS/CNC 纳米复合材料。SEM 图像表明，自组装的 CNC 纳米片均匀分散在聚合物基质中。拉伸和 DMA 测试中显示的机械性能提高表明，CNC 与 ABS 结合良好。TGA 结果表明，由于 ABS 涂层的保护，母粒中 CNC 的热降解温度升高。这种方法不仅提高了 CNC 的分散能力和热稳定性，而且还适用于工业规模生产中其他疏水暖塑性塑料的使用。
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