Preparation and properties of thermally conductive PLA/PA 610 biomass composites

Autor:	Fang-Cheng Pai, Sun-Mou Lai, Hou-Hsein Chu
Rok vydání:	2019
Předmět:	chemistry.chemical_compound Filler (packaging) Materials science Polymers and Plastics chemistry Boron nitride Polyamide Materials Chemistry Biomass Hexagonal boron nitride Composite material Electrical conductor Lactic acid
Zdroj:	Journal of Elastomers & Plastics. 52:53-69
ISSN:	1530-8006 0095-2443
DOI:	10.1177/0095244318825286
Popis:	Thermally conductive biomass composites were prepared using poly(lactic acid) (PLA)/polyamide 610 (PA 610) blends as the matrix and a hexagonal boron nitride (BN) as the thermally conductive filler via a melt-blending process. The experimental results showed that BN was dispersed in the blends as the flake type morphology. Tg (glass transition temperature) and Tm (melting temperature) of both PLA and PA 610 remained unchanged, but the thermal degradation temperature increased up to 30°C with the addition of 50 phr BN in the blends. The tensile strength and tensile modulus increased with the incorporation of BN in the blends. The thermal conductivity of the blends could be improved with the addition of BN, reaching the highest level of 0.86 W m−1·K−1 for the 50 phr-filled composite. The thermal conductivities of the composites were successfully predicted via a semi-theoretical mathematical model proposed by Lewis and Nielsen.
Databáze:	OpenAIRE
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