Dispersion and characteristics of surfactant modified cellulose whiskers nanocomposites

被引：196

作者：

Bondeson, Daniel ^{[1
]}

Oksman, Kristiina ^{[1
,2
]}

机构：

[1] Norwegian Univ Sci & Technol, Dept Engn Design & Mat, NO-7491 Trondheim, Norway

[2] Lulea Univ Technol, Div Manufacturing & Design Wood & Bionanocomposit, SE-93187 Skelleftea, Sweden

来源：

COMPOSITE INTERFACES | 2007年 / 14卷 / 7-9期

关键词：

biopolymer; cellulose; extrusion; nanostructures; surfactant; mechanical properties;

D O I：

10.1163/156855407782106519

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Biodegradable nanocomposites based on 5 wt% cellulose nanowhiskers (CNW) and polylactic acid (PLA) were prepared using an extrusion process. An anionic surfactant (5, 10 and 20 wt%) was used to improve the dispersion of the CNW m the PLA matrix. The results showed that increased surfactant content resulted in improved dispersion but at the same time degraded the PLA matrix. The results from mechanical testing showed a maximum modulus for the composite with 5 wt% surfactant and as the surfactant content increased, the CNW dispersion improved and the tensile strength and elongation at break was improved compared to its unreinforced counterpart.

引用

页码：617 / 630

页数：14

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