Preparation and characterization of starch-based bioplastic composites with treated oil palm empty fruit bunch fibers and citric acid

被引：36

作者：

Yang, Jianlei ^{[1
]}

Ching, Yern Chee ^{[1
]}

Chuah, Cheng Hock ^{[1
]}

Hai, Nguyen Dai ^{[2
]}

Singh, Ramesh ^{[3
]}

Nor, Abidi Rahima Md ^{[4
]}

机构：

[1] Univ Malaya, Dept Chem Engn, Fac Engn, Kuala Lumpur 50603, Malaysia

[2] Vietnam Acad Sci & Technol, Inst Appl Mat Sci, Ho Chi Minh City 700000, Vietnam

[3] Univ Malaya, Dept Mech Engn, Fac Engn, Kuala Lumpur 50603, Malaysia

[4] Univ Malaya, Int Inst Publ Policy & Management, Inst Grad Studies, Kuala Lumpur 50603, Malaysia

来源：

CELLULOSE | 2021年 / 28卷 / 07期

关键词：

Starch; Bioplastic; Composite; Reinforcement; Crosslinking;

D O I：

10.1007/s10570-021-03816-8

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

The present paper described the preparation and characterization of starch-based bioplastic composites reinforced by treated oil palm empty fruit bunch fibers and citric acid (CA) at varying loading levels. Structural, thermal, mechanical, and water resistance properties of the bioplastic composites were characterized. Fourier transform infrared spectroscopy (FTIR) evidenced the esterification of starch by CA and the formation of hydrogen bonds among starch, fibers, and CA. Scanning electron microscopy (SEM) micrographs indicated that the fibers below 10 wt% contents can disperse uniformly in the composites, while higher contents of fibers contributed to the starch retrogradation or fiber aggregates. The addition of CA promoted the compatibility between fibers and starch effectively. The incorporation of fibers enhanced the melting temperature and thermal stability of the composites, while the effect of CA on thermal properties depended on its loading levels. The incorporation of fibers or CA improved the tensile strength of the composites significantly and enhanced the water resistance moderately. 3 wt% CA caused the decomposition of starch and deteriorated these properties of the composites. The green bioplastic composites represented a potential replacement for non-biodegradable plastics. [GRAPHICS] .

引用

页码：4191 / 4210

页数：20

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