Enhancement of thermal, mechanical and barrier properties of EVA solar cell encapsulating films by reinforcing with esterified cellulose nanofibres

被引：38

作者：

Yuwawech, Kitti ^{[1
,2
]}

Wootthikanokkhan, Jatuphorn ^{[1
,2
]}

Tanpichai, Supachok ^{[1
,3
]}

机构：

[1] King Mongkuts Univ Technol Thonburi, Nanotec KMUTT Ctr Excellence Hybrid Nanomat Alter, Bangkok 10140, Thailand

[2] King Mongkuts Univ Technol Thonburi, Sch Energy Environm & Mat, Bangkok 1014, Thailand

[3] King Mongkuts Univ Technol Thonburi, Learning Inst, Bangkok 10140, Thailand

来源：

POLYMER TESTING | 2015年 / 48卷

关键词：

Cellulose nanofibres; EVA; Nanocomposite; Encapsulant; Solar cells; BACTERIAL CELLULOSE; COMPOSITES; NANOCELLULOSE; MORPHOLOGY; ALKALI; CLAY;

D O I：

10.1016/j.polymertesting.2015.09.007

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Solar cell encapsulating film based on ethylene vinyl acetate copolymer (EVA) was modified by using bacterial cellulose (BC) nanofibres. Bacterial cellulose was chemically modified with propionic anhydride prior to compounding with EVA in a twin screw extruder. The effects of fibre content on the mechanical, thermal, optical and barrier properties of the EVA composite films were investigated. Better mechanical and barrier properties of the EVA films were obtained when the modified BC nanofibres were used. The results were ascribed to the different chemical functional groups on the fibre surface, as verified by FTIR spectra. Deacetylation of the EVA was delayed and visible light transparency of the EVA films above 75% was retained. Overall, our study showed that it was possible to improve the barrier properties of EVA film without sacrificing much transparency by using a suitable type and content of cellulose nanofibres. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：12 / 22

页数：11

共 41 条

[1] Preparation and characterization of modified cellulose nanofibers reinforced polylactic acid nanocomposite [J].