期刊
NORDIC PULP & PAPER RESEARCH JOURNAL
卷 28, 期 2, 页码 165-181出版社
WALTER DE GRUYTER GMBH
DOI: 10.3183/npprj-2013-28-02-p165-181
关键词
Nanocellulose; Microfibrillar cellulose; Nanocrystalline cellulose; Cellulose Whiskers; Nanocomposites; Oxygen permeability; Water vapor permeability; Strength properties; Food packaging boards
资金
- Norwegian University of Science and Technology (NTNU) in Trondheim
This presentation reviews the recent research on new nanocellulose-based materials relevant to food packaging. The following materials are included: i) composites having nano-sized cellulosic additive or reinforcement filler and the following matrix materials: poly(lactic acid) (PLA), cellulose derivatives, or cellulose in so-called all-cellulose composites, and ii) packaging boards. Nano-sized celluloses (nanocelluloses) comprise micro- and nanofibrillar celluloses, nanocrystalline celluloses and whiskers. Sufficient mechanical and barrier properties are essential for a food packaging material. This potential of the cellulose-based materials is thus examined from the viewpoint of their tensile properties, and moisture and oxygen barrier properties, and compared to those of petro-based materials. In the discussion, an evaluation is made on the improvements achieved by usig nano-sized celluloses either as reinforcement filler or functional additive. The materials containing nanocelluloses either as a coating or additive have great potential to exceed the oxygen barrier properties of petro-plastics, provided that the mechanical properties of the composite, mainly ductility, is sufficient. Water vapor barrier properties of cellulose-based materials are still far from those of LDPE, even with nanocellulose additive. Relatively little research has been done on mineral-filled nanocellulose containing composites. Enhanced moisture barrier coatings may be found among those materials.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据