Properties of Polylactic Acid Reinforced by Hydroxyapatite Modified Nanocellulose

编号 020019605

推送时间 20190722

研究领域 林产化工 

年份 2019 

类型 期刊 

语种 英语

标题 Properties of Polylactic Acid Reinforced by Hydroxyapatite Modified Nanocellulose

来源期刊 POLYMERS

期 第196期

发表时间 20190606

关键词 nanocellulose;  hydroxyapatite;  polylactic acid;  compatibility; 

摘要 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 degrees C. The above revelations show that NCC/HAP significantly improved the interface compatibility with PLA matrix.

服务人员 尚玮姣

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