Electrospun recycled PET-based mats: Tuning the properties by addition of cellulose and/or lignin

被引：26
|
作者：
de Oliveira Santos, Rachel Passos [1 ]
Manzolli Rodrigues, Bruno Vinicius [1 ,4 ]
dos Santos, Danilo Martins [2 ]
Campana-Filho, Sergio Paulo [2 ]
Ruvolo-Filho, Adhemar C. [3 ]
Frollini, Elisabete [1 ]
机构：
[1] Univ Sao Paulo, Macromol Mat & Lignocellulos Fibers Grp, Ctr Res Sci & Technol BioResources, Inst Chem Sao Carlos, Sao Paulo, Brazil
[2] Univ Sao Paulo, Inst Chem Sao Carlos, Sao Paulo, Brazil
[3] Univ Fed Sao Carlos, Dept Mat Engn, Sao Paulo, Brazil
[4] Univ Brasil, Lab Biomed Nanotechnol, Sao Paulo, Brazil
来源：
POLYMER TESTING | 2017年 / 60卷
基金：
巴西圣保罗研究基金会;
关键词：
Recycled PET; Cellulose; Lignin; Electrospinning; Ultrathin fibers/nanofibers; NANOFIBERS; POLYMER; FIBERS; CHITOSAN; SURFACE;
D O I：
10.1016/j.polymertesting.2017.04.023
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The aim of this study was to evaluate the influence of cellulose and/or lignin on the properties of mats prepared from dissolution (for 48 h or 72 h, solvent: trifluoroacetic acid) of recycled poly (ethylene terephthalate) (PET). Briefly, the presence of cellulose led to a tendency of higher average fiber diameter and average pore area as well as lower average porosity compared to the neat mat (PETref, 242 +/- 59 nm, 9.6 +/- 1.1 10(4) nm(2) and 19.0 +/- 1.1%, respectively). The T-g values for electrospun PET combined with cellulose and/or lignin were higher than that of PETref (92.5 +/- 0.1 degrees C), and the tensile strength increased with the cellulose and/or lignin loading. In addition, the presence of lignin (72 h of dissolution) led to a mat with an elongation at break of 149 +/- 9% compared to 14 +/- 2% for PETref. The results indicated that the properties of mats based on PET can be tuned by adding cellulose and/or lignin to solutions posteriorly electrospun as well as by varying the dissolution time. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：422 / 431
页数：10
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