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Properties of polylactic acid reinforced by hydroxyapatite modified nanocellulose

Polymers, ISSN: 2073-4360, Vol: 11, Issue: 6
2019
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Polymers, Vol. 11, Pages 1009: Properties of Polylactic Acid Reinforced by Hydroxyapatite Modified Nanocellulose

Polymers, Vol. 11, Pages 1009: Properties of Polylactic Acid Reinforced by Hydroxyapatite Modified Nanocellulose Polymers doi: 10.3390/polym11061009 Authors: Lu Sun Yang Wang Jiang Tusiime Yang

Article Description

Polylactic acid (PLA) is one of the most promising bio-based materials, but its inherent hydrophobicity limits its application. Although nanocellulose (NCC) is a desirable reinforcement for PLA, the poor interface compatibility between the two has been a challenge. In this work, hydroxyapatite (HAP) modified NCC was prepared, and the obtained NCC/HAP reinforcement was used to prepare PLA/NCC-HAP composites. Different ratios of NCC to HAP were studied to explore their effects on the mechanical and thermodynamic properties of the composites. When the ratio of NCC to HAP was 30/70, the tensile strength and tensile modulus of the composite film reached 45.6 MPa and 2.34 GPa, respectively. Thermogravimetric analysis results indicate that thermal stability of the composites was significantly improved compared with pure PLA, reaching 346.6 °C. The above revelations show that NCC/HAP significantly improved the interface compatibility with PLA matrix.

Bibliographic Details

Lu, Jianxiao; Sun, Chuanyue; Yang, Kexin; Wang, Kaili; Jiang, Yingyi; Tusiime, Rogers; Yang, Yun; Fan, Fan; Sun, Zeyu; Liu, Yong; Zhang, Hui; Han, Keqing; Yu, Muhuo

MDPI AG

Chemistry; Materials Science

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