Thermal and Mechanical Properties of Biodegradable PBAT and MWCNT Composites

YongKwang, Cho; Bae, Seong-Guk; Noh, Geon Ho; Park, Chan-Young; Lee, Won‐Ki; Jang, Se Young

doi:10.5322/jesi.2017.26.1.79

Cited by 1 publication

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“…But its high price [15,16] and some performance defects, such as high-water vapor transmission rate [17], limit its scope of applications. To make better use of PBAT in packaging materials, fillers are often used to modify PBAT and enhance its mechanical properties, thermal stability, and barrier properties [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Barrier performance and biodegradability of antibacterial poly(butylene adipate-co-terephthalate) nanocomposites reinforced with a new MWCNT-ZnO nanomaterial

Tsou

Yuan

et al. 2021

Nanotechnology

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A new nanomaterial or nano-filler in the form of multiwalled carbon nanotube-zinc oxide (MWCNT-ZnO) was synthesized for the purpose of modifying poly(butylene adipate-coterephthalate) (PBAT) and its derivative (modified PBAT or MPBAT) through a melt-blending method (MPBAT was obtained by introducing maleic anhydride groups into PBAT). The effect of the new nano-filler on the properties of resultant nanocomposites was determined from the characterization of mechanical properties, morphology, crystallinity, thermal stability, barrier properties, hydrophilicity, conductivity, antibacterial property, and biodegradability. The results showed that MPBAT nanocomposites had stronger mechanical properties, better barrier properties, and higher electrical conductivity than PBAT nanocomposites. Scanning electron microscopy illustrated that MWCNT-ZnO had better compatibility with MPBAT than with PBAT. At 0.2% MWCNT-ZnO, the MPBAT/MWCNT-ZnO nanocomposite film exhibited the greatest mechanical properties (17.74% increase in tensile strength, 22.17% in yield strength, and 14.29% in elongation at break). When the MWCNT-ZnO content was 0.4%, the nanocomposite film demonstrated the best water vapor barrier ability (an increase of 30.4%). The MPBAT/MWCNT-ZnO film with 0.6% MWCNT-ZnO turned out to have the best oxygen barrier performance (an increase of 130% relative to pure PBAT). It was shown from the results NanotechnologyNanotechnology 32 (2021) 485706 (17pp)

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