Investigation ofsurface-pegylatednanocellulose as reinforcing agent onPBATbiodegradable nanocomposites

被引：16

作者：

de Souza, Alana Gabrieli ^{[1
]}

de Lima, Giovanni Floriano ^{[1
]}

Rangari, Vijaya Kumar ^{[2
]}

dos Santos Rosa, Derval ^{[1
]}

机构：

[1] Univ Fed ABC UFABC, Ctr Engn Modelagem & Ciencias Sociais Aplicadas C, Ave Estados 5001, BR-09210580 Santo Andre, SP, Brazil

[2] Tuskegee Univ, Dept Mat Sci & Engn, Tuskegee, AL 36088 USA

来源：

POLYMER COMPOSITES | 2020年 / 41卷 / 10期

关键词：

biodegradable; composites; modification; nanotechnology; CELLULOSE NANOCRYSTALS; POLYETHYLENE-GLYCOL; CRYSTALLIZATION; COMPOSITES; POLYCAPROLACTONE; DISPERSION; FIBERS; PBAT; PEG;

D O I：

10.1002/pc.25716

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

In the present work, nanocellulose (NC) has been surface-pegylated and further employed as reinforcement in poly(butylene adipate-co-terephthalate) (PBAT) through the melting process. The nanocomposites showed a significant stiffness increase, especially the 2% pegylated-NC, due to the good interaction between the modified NC and the matrix. Also the pegylation improved the filler-PBAT adhesion, which resulted in higher thermal stability and low crystallinity. Raman spectroscopy confirmed the strong interaction between the 2% pegylated-NC, morphological analysis confirmed the filler adhesion. The water absorption indicated that the pegylated-NC has a low tendency to absorb water, which improves its applicability, for example, as a packaging material. This unique study is of great value for the future design of pegylated-NC biodegradable nanocomposites with tailored properties.

引用

页码：4340 / 4352

页数：13

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