Enhancement of impact strength of poly(lactic acid)/silicon carbide nanocomposites through surface modification with titanate-coupling agents

In this study, poly(lactic acid) (PLA)-based nanocomposites were fabricated from PLA and silicon carbide (SiC) using solution blending. The surfaces of SiC nanoparticles were treated with a titanate-coupling agent. The influence of the SiC content on thermal stability, flexural properties, impact st...

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Bibliographic Details
Published in:Bulletin of materials science 2020-12, Vol.43 (1), p.6, Article 6
Main Authors: Zhang, Ji-Bo, Zhang, Heng, Jin, Fan-Long, Park, Soo-Jin
Format: Article
Language:English
Subjects:
Acids
Biopolymers
Chemistry and Materials Science
Coupling agents
Decomposition
Engineering
Impact strength
Materials Science
Mechanical properties
Nanocomposites
Nanoparticles
Polylactic acid
Polymers
Scanning electron microscopy
Silicon carbide
Solution blending
Spectrum analysis
Temperature
Thermal stability
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Summary:In this study, poly(lactic acid) (PLA)-based nanocomposites were fabricated from PLA and silicon carbide (SiC) using solution blending. The surfaces of SiC nanoparticles were treated with a titanate-coupling agent. The influence of the SiC content on thermal stability, flexural properties, impact strength and fracture morphology of the nanocomposites was investigated. The impact strength of the nanocomposites was increased by the introduction of SiC nanoparticles. The nanocomposites containing SiC nanoparticles treated with a titanate-coupling agent (termed T-SiC) exhibited higher impact strengths than the nanocomposites containing neat SiC nanoparticles under the same conditions. Scanning electron microscopy results showed good compatibility between the T-SiC nanoparticles and the PLA matrix.
ISSN:0250-4707
0973-7669
DOI:10.1007/s12034-019-1977-z