Investigation ofsurface-pegylatednanocellulose as reinforcing agent onPBATbiodegradable nanocomposites

被引：15
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
收藏
页码：4340 / 4352
页数：13
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