纳米纤维素(NC)具有低密度,高纵横比,令人印象深刻的机械性能,纳米级尺寸,这显示了作为增强填料的巨大潜在应用。聚烯烃(PO),以聚乙烯(PE)和聚丙烯(PP)为代表,在工业中得到了广泛的应用。近年来,纳米纤维素/聚烯烃纳米复合材料(NC/PO纳米复合材料)在汽车零部件中的应用引起了越来越多的关注,航空航天,家具,建筑,家用电器,和体育。在这次审查中,综述了纳米纤维素和聚烯烃的表面改性,如表面吸附改性,小分子修饰,和接枝共聚改性。讨论了NC/PO纳米复合材料的常用制备方法,包括熔融复合,溶剂浇铸,和原位聚合。轻量级,机械性能,重点介绍了NC/PO纳米复合材料的耐老化性能。最后,讨论了NC/PO纳米复合材料工业生产发展的潜力和挑战。
Nanocellulose (NC) possesses low density, high aspect ratio, impressive mechanical properties, nanoscale dimensions, which shows huge potential applications as a reinforced filler. Polyolefin (PO), represented by polyethylene (PE) and polypropylene (PP), has been widely used in industries. Recently nanocellulose/polyolefin nanocomposites (NC/PO nanocomposites) have caught more attention from the application of automotive components, aerospace, furniture, building, home appliances, and sport. In this
review, the surface modifications of nanocellulose and polyolefin are summarized respectively, such as surface adsorption modification, small molecule modification, and graft copolymerization modification. The common preparations of NC/PO nanocomposites are discussed, including the melting compounding, the solvent casting, and the in-situ polymerization. The
lightweight, mechanical properties, and aging-resistant properties of NC/PO nanocomposites are highlighted. Finally, the potentials and challenges for industrial production development of NC/PO nanocomposites are discussed.