Properties of Poplar Fiber/PLA Composites: Comparison on the Effect of Maleic Anhydride and KH550 Modification of Poplar Fiber
To improve the interfacial adhesion and dispersion of a poplar fiber in a polylactic acid (PLA) matrix, maleic anhydride (MA) and a silane coupling agent (KH550) were used to modify the poplar fiber. The poplar fiber/PLA composites were produced with different modifier contents. The mechanical, ther...
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doaj-11ff8569dd194f5987502df7d04a2b772020-11-25T03:51:10ZengMDPI AGPolymers2073-43602020-03-0112372910.3390/polym12030729polym12030729Properties of Poplar Fiber/PLA Composites: Comparison on the Effect of Maleic Anhydride and KH550 Modification of Poplar FiberZhaozhe Yang0Xinhao Feng1Min Xu2Denis Rodrigue3Institute of Chemistry and Industry of Forest Products, Chinese Academy of Forestry, Nanjing 210042, Jiangsu, ChinaCollege of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, Jiangsu, ChinaCollege of Material Science and Engineering, Northeast Forestry University, Harbin 150040, Heilongjiang, ChinaDepartment of Chemistry and Engineering, University of Laval, Quebec City, PQ G1V 0A6, CanadaTo improve the interfacial adhesion and dispersion of a poplar fiber in a polylactic acid (PLA) matrix, maleic anhydride (MA) and a silane coupling agent (KH550) were used to modify the poplar fiber. The poplar fiber/PLA composites were produced with different modifier contents. The mechanical, thermal, rheological, and physical properties of composites were investigated. A comparison of different natural fiber modifications on the properties of composites was also analyzed. The results showed that both MA and KH550 could improve the interfacial adhesion between the poplar fiber and PLA, resulting in the enhanced mechanical properties of the composite, with 17% and 23% increases of tensile strength for 0.5% MA and 2% KH550, respectively. The thermal properties of the composites were improved at 6% KH550 (a 9% enhancement of <i>T<sub>90%</sub></i>) and decreased at 0.5% MA (a 6% decrement of <i>T<sub>90%</sub></i>). The wettability of the composites obtained a 11.3% improvement at 4% KH550 and a 5% reduction at 4% MA. Therefore, factors such as mechanical properties, economic efficiency, and durability should be carefully considered when choosing the modifier to improve the property of the composite.https://www.mdpi.com/2073-4360/12/3/729poplar fiberpolylactic acidinterfacial adhesionkh550maleic anhydride |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Zhaozhe Yang Xinhao Feng Min Xu Denis Rodrigue |
spellingShingle |
Zhaozhe Yang Xinhao Feng Min Xu Denis Rodrigue Properties of Poplar Fiber/PLA Composites: Comparison on the Effect of Maleic Anhydride and KH550 Modification of Poplar Fiber Polymers poplar fiber polylactic acid interfacial adhesion kh550 maleic anhydride |
author_facet |
Zhaozhe Yang Xinhao Feng Min Xu Denis Rodrigue |
author_sort |
Zhaozhe Yang |
title |
Properties of Poplar Fiber/PLA Composites: Comparison on the Effect of Maleic Anhydride and KH550 Modification of Poplar Fiber |
title_short |
Properties of Poplar Fiber/PLA Composites: Comparison on the Effect of Maleic Anhydride and KH550 Modification of Poplar Fiber |
title_full |
Properties of Poplar Fiber/PLA Composites: Comparison on the Effect of Maleic Anhydride and KH550 Modification of Poplar Fiber |
title_fullStr |
Properties of Poplar Fiber/PLA Composites: Comparison on the Effect of Maleic Anhydride and KH550 Modification of Poplar Fiber |
title_full_unstemmed |
Properties of Poplar Fiber/PLA Composites: Comparison on the Effect of Maleic Anhydride and KH550 Modification of Poplar Fiber |
title_sort |
properties of poplar fiber/pla composites: comparison on the effect of maleic anhydride and kh550 modification of poplar fiber |
publisher |
MDPI AG |
series |
Polymers |
issn |
2073-4360 |
publishDate |
2020-03-01 |
description |
To improve the interfacial adhesion and dispersion of a poplar fiber in a polylactic acid (PLA) matrix, maleic anhydride (MA) and a silane coupling agent (KH550) were used to modify the poplar fiber. The poplar fiber/PLA composites were produced with different modifier contents. The mechanical, thermal, rheological, and physical properties of composites were investigated. A comparison of different natural fiber modifications on the properties of composites was also analyzed. The results showed that both MA and KH550 could improve the interfacial adhesion between the poplar fiber and PLA, resulting in the enhanced mechanical properties of the composite, with 17% and 23% increases of tensile strength for 0.5% MA and 2% KH550, respectively. The thermal properties of the composites were improved at 6% KH550 (a 9% enhancement of <i>T<sub>90%</sub></i>) and decreased at 0.5% MA (a 6% decrement of <i>T<sub>90%</sub></i>). The wettability of the composites obtained a 11.3% improvement at 4% KH550 and a 5% reduction at 4% MA. Therefore, factors such as mechanical properties, economic efficiency, and durability should be carefully considered when choosing the modifier to improve the property of the composite. |
topic |
poplar fiber polylactic acid interfacial adhesion kh550 maleic anhydride |
url |
https://www.mdpi.com/2073-4360/12/3/729 |
work_keys_str_mv |
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