Shortening the Saturation Time of PBAT Sheet Foaming via the Pre-Introducing of Microporous Structures DOI Open Access

Fangwei Tian,

Junjie Jiang, Yaozong Li

et al.

Materials, Journal Year: 2025, Volume and Issue: 18(5), P. 1044 - 1044

Published: Feb. 26, 2025

Poly (butylene adipate-co-terephthalate) (PBAT) foam sheets prepared by foaming supercritical fluids are characterized high resilience, homogeneous cellular structure, and well-defined biodegradability. However, the inert chemical structure rigid hard segments restrict diffusion of CO2 within PBAT matrix, resulting in extremely long gas saturation times as 9 h at a thickness 12 mm. In this study, microporous structures were pre-introduced into matrix to provide fast pathway during process. After 2 saturation, with expansion ratio 10 13.8 prepared. The interaction was systematically investigated, sorption process evaluated kinetically thermodynamically using Fickian theory. solubility rate pretreated different sizes densities effects pretreatment strategies on behavior cell discussed. introduction not only reduces time but also enhances solubility, enabling successful preparation soft foams ratios resilience. undergoing treatment, μm density 0.45 g/cm3 demonstrated improved mechanical properties: their hardness decreased 35 C while resilience increased 58%, reflecting enhanced elastic recovery capabilities. method, which increases sheets, offers straightforward approach that provides valuable insights achieving rapid efficient thick industrial applications.

Language: Английский

Shortening the Saturation Time of PBAT Sheet Foaming via the Pre-Introducing of Microporous Structures DOI Open Access

Fangwei Tian,

Junjie Jiang, Yaozong Li

et al.

Materials, Journal Year: 2025, Volume and Issue: 18(5), P. 1044 - 1044

Published: Feb. 26, 2025

Poly (butylene adipate-co-terephthalate) (PBAT) foam sheets prepared by foaming supercritical fluids are characterized high resilience, homogeneous cellular structure, and well-defined biodegradability. However, the inert chemical structure rigid hard segments restrict diffusion of CO2 within PBAT matrix, resulting in extremely long gas saturation times as 9 h at a thickness 12 mm. In this study, microporous structures were pre-introduced into matrix to provide fast pathway during process. After 2 saturation, with expansion ratio 10 13.8 prepared. The interaction was systematically investigated, sorption process evaluated kinetically thermodynamically using Fickian theory. solubility rate pretreated different sizes densities effects pretreatment strategies on behavior cell discussed. introduction not only reduces time but also enhances solubility, enabling successful preparation soft foams ratios resilience. undergoing treatment, μm density 0.45 g/cm3 demonstrated improved mechanical properties: their hardness decreased 35 C while resilience increased 58%, reflecting enhanced elastic recovery capabilities. method, which increases sheets, offers straightforward approach that provides valuable insights achieving rapid efficient thick industrial applications.

Language: Английский

Citations

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