The effect of polytetrafluoroethylene particle size on the properties of biodegradable poly(butylene succinate)-based composites

Abstract Poly(butylene succinate) (PBS)/polytetrafluoroethylene (PTFE) composites, including three types of PTFE powders, were prepared by melt blending using a HAAKE torque rheometer. Microcellular foams were successfully fabricated by batch foaming with supercritical fluids (scCO2). The effects of...

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Autores principales:	Shudong Chen, Xiangfang Peng, Lihong Geng, Hankun Wang, Jialin Lin, Binyi Chen, An Huang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b45ca49f812d4b63af7f1561c83344de
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spelling	oai:doaj.org-article:b45ca49f812d4b63af7f1561c83344de2021-12-02T17:04:36ZThe effect of polytetrafluoroethylene particle size on the properties of biodegradable poly(butylene succinate)-based composites10.1038/s41598-021-86307-x2045-2322https://doaj.org/article/b45ca49f812d4b63af7f1561c83344de2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-86307-xhttps://doaj.org/toc/2045-2322Abstract Poly(butylene succinate) (PBS)/polytetrafluoroethylene (PTFE) composites, including three types of PTFE powders, were prepared by melt blending using a HAAKE torque rheometer. Microcellular foams were successfully fabricated by batch foaming with supercritical fluids (scCO2). The effects of PTFE powder type on crystallization, rheological properties and foaming behavior were studied. PTFE L-5 and PTFE JH-220 powders showed good dispersion in the PBS matrix, and PTFE FA-500 powder underwent fibrillation during the melt blending process. All three PTFE powders gradually increased the crystallization temperature of PBS from 78.2 to 91.8 ℃ and the crystallinity from 45.6 to 61.7% without apparent changes in the crystal structure. Rheological results revealed that PBS/PTFE composites had a higher storage modulus, loss modulus, and complex viscosity than those of pure PBS. In particular, the complex viscosity of the PBS/P500 composite increased by an order of magnitude in the low-frequency region. The foamed structure of PBS was obviously improved by adding PTFE powder, and the effect of fibrillated PTFE FA-500 was the most remarkable, with a pore mean diameter of 5.46 μm and a pore density of 1.86 × 109 cells/cm3 (neat PBS foam: 32.49 μm and 1.95 × 107 cells/cm3). Moreover, PBS/P500 foam always guarantees hydrophobicity.Shudong ChenXiangfang PengLihong GengHankun WangJialin LinBinyi ChenAn HuangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Shudong Chen Xiangfang Peng Lihong Geng Hankun Wang Jialin Lin Binyi Chen An Huang The effect of polytetrafluoroethylene particle size on the properties of biodegradable poly(butylene succinate)-based composites
description	Abstract Poly(butylene succinate) (PBS)/polytetrafluoroethylene (PTFE) composites, including three types of PTFE powders, were prepared by melt blending using a HAAKE torque rheometer. Microcellular foams were successfully fabricated by batch foaming with supercritical fluids (scCO2). The effects of PTFE powder type on crystallization, rheological properties and foaming behavior were studied. PTFE L-5 and PTFE JH-220 powders showed good dispersion in the PBS matrix, and PTFE FA-500 powder underwent fibrillation during the melt blending process. All three PTFE powders gradually increased the crystallization temperature of PBS from 78.2 to 91.8 ℃ and the crystallinity from 45.6 to 61.7% without apparent changes in the crystal structure. Rheological results revealed that PBS/PTFE composites had a higher storage modulus, loss modulus, and complex viscosity than those of pure PBS. In particular, the complex viscosity of the PBS/P500 composite increased by an order of magnitude in the low-frequency region. The foamed structure of PBS was obviously improved by adding PTFE powder, and the effect of fibrillated PTFE FA-500 was the most remarkable, with a pore mean diameter of 5.46 μm and a pore density of 1.86 × 109 cells/cm3 (neat PBS foam: 32.49 μm and 1.95 × 107 cells/cm3). Moreover, PBS/P500 foam always guarantees hydrophobicity.
format	article
author	Shudong Chen Xiangfang Peng Lihong Geng Hankun Wang Jialin Lin Binyi Chen An Huang
author_facet	Shudong Chen Xiangfang Peng Lihong Geng Hankun Wang Jialin Lin Binyi Chen An Huang
author_sort	Shudong Chen
title	The effect of polytetrafluoroethylene particle size on the properties of biodegradable poly(butylene succinate)-based composites
title_short	The effect of polytetrafluoroethylene particle size on the properties of biodegradable poly(butylene succinate)-based composites
title_full	The effect of polytetrafluoroethylene particle size on the properties of biodegradable poly(butylene succinate)-based composites
title_fullStr	The effect of polytetrafluoroethylene particle size on the properties of biodegradable poly(butylene succinate)-based composites
title_full_unstemmed	The effect of polytetrafluoroethylene particle size on the properties of biodegradable poly(butylene succinate)-based composites
title_sort	effect of polytetrafluoroethylene particle size on the properties of biodegradable poly(butylene succinate)-based composites
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b45ca49f812d4b63af7f1561c83344de
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The effect of polytetrafluoroethylene particle size on the properties of biodegradable poly(butylene succinate)-based composites

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