Fabrication and Physical Characterization of Biodegradable Poly(butylene succinate)/Carbon Nanofiber Nanocomposite Foams

Lim, Sang Kyun; Lee, Seok In; Jang, Suk Goo; Lee, Kwang Hee; Choi, Hyoung Jin; Chin, In‐Joo

doi:10.1080/00222341003648144

Cited by 23 publications

(14 citation statements)

References 29 publications

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“…Numerous scientists are utilizing ADC for PBS. 7 -13 However, some researchers reveal that heat release from the exothermic reaction of ADC during the foam process could be an issue due to the low viscosity of linear PBS, cell collapse, and deteriorating mechanical or insulation properties of PBS foams. Yue et al 14 utilized endothermic expandable microspheres (EnEMs) to counteract the exothermic effect from ADC decomposition.…”

Section: Introductionmentioning

confidence: 99%

Effect of PBAT on physical, morphological, and mechanical properties of PBS/PBAT foam

2019

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This study examines the effect of poly(butylene adipate- co-terephthalate) (PBAT) content on the physical, morphological, and mechanical properties of poly(butylene succinate) (PBS)/PBAT foam. A compression molding technique was used to prepare the PBS/PBAT foam using the chemical blowing agent azodicarbonamide and the cross-linking agent dicumyl peroxide. The chemical structure and morphological properties of PBS/PBAT foam were examined via Fourier transform infrared and scanning electron microscopy techniques, respectively, whereas tensile and flexural properties were investigated using a universal testing machine. The results reveal that the incorporation of PBAT barely enhances the viscosity of the PBS/PBAT blend, producing only minor changes in the average cell size of PBS/PBAT foam. However, increasing the PBAT content contributes to a relatively significant improvement in the flexibility and toughness of PBS/PBAT foam, where a decrease in Young’s modulus and tensile strength of the PBS/PBAT foam is observed compared with those of the PBS foam. Similar behavior to the tensile results is noticed for the flexural properties of the neat and PBS/PBAT foams.

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Section: Introductionmentioning

confidence: 99%

Effect of PBAT on physical, morphological, and mechanical properties of PBS/PBAT foam

2019

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“…cannot be ignored. The use of nanofillers, such as multi-walled carbon nanotube (MWCNTs) [21], halloysite nanotubes (HNTs) [19], and carbon nanofibers (CNFs) [22] has been reported to be a successful way to improve the melt viscosity, crystallization behavior, and foamability of PBS materials. However, the cost of the above-mentioned nanofillers is relatively high.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Poly(butylene succinate)/Carbon Black Nanocomposite Foams with Good Electrical Conductivity and High Strength by a Supercritical CO2 Foaming Process

Chen

et al. 2019

Polymers

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Lightweight, high-strength and electrically conductive poly(butylene succinate) (PBS)/ carbon black (CB) nanocomposite foams with a density of 0.107–0.344 g/cm3 were successfully fabricated by a solid-state supercritical CO2 (ScCO2) foaming process. The morphology, thermal and dynamic mechanical properties, and rheological behavior of the PBS/CB nanocomposites were studied. The results indicate that the CB nanofiller was well dispersed in the PBS matrix and the presence of a proper CB nanofiller can accelerate the rate of crystallization, improve the thermal stability, enhance the stiffness, and increase the complex viscosity of PBS/CB nanocomposites. These improved properties were found to play an important role in the foaming process. The results from foaming experiments showed that the PBS/CB nanocomposite foams had a much smaller cell size, a higher cell density, and a more uniform cell morphology as compared to neat PBS foams. Furthermore, the PBS/CB nanocomposite foams also possessed low density (0.107–0.344 g/cm3), good electrical conductivity (~0.45 S/cm at 1.87 vol % CB loading), and improved compressive strength (108% increase), which enables them to be used as lightweight and high-strength functional materials.

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“…Bahari et al [21] formed PBS foams with cross-linked structures by irradiating the PBS with electron-beam irradiation, and then blends with different chemical blowing agents. Lim et al [22][23][24] mixed PBS with carbon nanofiber, organoclay and multi-walled carbon nanotube, respectively, and then studied the effects of the processing methods, nanofiller content and foaming conditions on the cell morphology of the expanded PBS foams. The cell morphology observations exhibited that a small amount of nanofillers could increase the cell density.…”

Section: Introductionmentioning

confidence: 99%

Preparation of biodegradable poly(butylene succinate)/halloysite nanotube nanocomposite foams using supercritical CO2 as blowing agent

Cao

Lin

et al. 2015

J Polym Res

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Biodegradable poly(butylene succinate) (PBS) was melt compounded with halloysite nanotube (HNT) to prepare PBS/HNT nanocomposites, and both pure PBS and PBS/ HNT nanocomposites were foamed successfully using supercritical carbon dioxide as a physical blowing agent. The cell morphologiesshowed that the cell size decreased, and both cell density and volume expansion ratio increased with the addition of HNT. Within the HNT content used in this work (1, 3, 5, and 7 wt.%), the content of 5 wt.% was found to be the one that lead to the smallest cell size and highest cell density and volume expansion ratio. In addition to the HNT content, both saturation temperature and saturation pressure were found to significantly influence the cell morphology. Higher saturation pressure led to smaller cell size and higher volume expansion ratio. Interestingly, a close-celled to interconnect open-celled morphology transition occurred for PBS/HNT nanocomposites at a saturation temperature of 120°C. The formation of interconnect open-celled morphology was mainly attributed to the stress induced by the HNT in the cell solidification process. With the increase of HNT content, saturation temperature and saturation pressure, the enthalpy of fusion of the foamed samples increased.

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Fabrication and Physical Characterization of Biodegradable Poly(butylene succinate)/Carbon Nanofiber Nanocomposite Foams

Cited by 23 publications

References 29 publications

Effect of PBAT on physical, morphological, and mechanical properties of PBS/PBAT foam

Effect of PBAT on physical, morphological, and mechanical properties of PBS/PBAT foam

Fabrication of Poly(butylene succinate)/Carbon Black Nanocomposite Foams with Good Electrical Conductivity and High Strength by a Supercritical CO2 Foaming Process

Preparation of biodegradable poly(butylene succinate)/halloysite nanotube nanocomposite foams using supercritical CO2 as blowing agent

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