Poly-ε-Caprolactone/Halloysite Nanotube Composites for Resorbable Scaffolds: Effect of Processing Technology on Homogeneity and Electrospinning

Polycaprolactone (PCL)/halloysite composites were prepared to compare the effect of homogenization technology on the structure and properties of the composites. Halloysite content changed from 0 to 10 vol% in six steps and homogeneity was characterized by various direct and indirect methods. The res...

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Autores principales:	Muriel Józó, Róbert Várdai, Nóra Hegyesi, János Móczó, Béla Pukánszky
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	homogenization mixing compression film casting aggregation thermal analysis Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/e78a65d660934d64a1a7722067163b6a
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spelling	oai:doaj.org-article:e78a65d660934d64a1a7722067163b6a2021-11-11T18:47:00ZPoly-ε-Caprolactone/Halloysite Nanotube Composites for Resorbable Scaffolds: Effect of Processing Technology on Homogeneity and Electrospinning10.3390/polym132137722073-4360https://doaj.org/article/e78a65d660934d64a1a7722067163b6a2021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/21/3772https://doaj.org/toc/2073-4360Polycaprolactone (PCL)/halloysite composites were prepared to compare the effect of homogenization technology on the structure and properties of the composites. Halloysite content changed from 0 to 10 vol% in six steps and homogeneity was characterized by various direct and indirect methods. The results showed that the extent of aggregation depends on technology and on halloysite content; the size and number of aggregates increase with increasing halloysite content. Melt mixing results in more homogeneous composites than the simple compression of the component powders or homogenization in solution and film casting. Homogeneity and the extent of aggregation determines all properties, including functionality. The mechanical properties of the polymer deteriorate with increasing aggregation; even stiffness depends on homogeneity. Strength and deformability decreases drastically as the number and size of aggregates increase. Not only dispersed structure, but also the physical state and crystalline structure of the polymer influence homogeneity and properties. The presence of the filler affects the preparation of electrospun fiber scaffolds as well. A part of the filler is excluded from the fibers while another part forms aggregates that complicates fiber spinning and deteriorates properties. The results indicate that spinning is easier and the quality of the fibers is better if a material homogenized previously by melt mixing is used for the production of the fibers.Muriel JózóRóbert VárdaiNóra HegyesiJános MóczóBéla PukánszkyMDPI AGarticlehomogenizationmixingcompressionfilm castingaggregationthermal analysisOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 3772, p 3772 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	homogenization mixing compression film casting aggregation thermal analysis Organic chemistry QD241-441
spellingShingle	homogenization mixing compression film casting aggregation thermal analysis Organic chemistry QD241-441 Muriel Józó Róbert Várdai Nóra Hegyesi János Móczó Béla Pukánszky Poly-ε-Caprolactone/Halloysite Nanotube Composites for Resorbable Scaffolds: Effect of Processing Technology on Homogeneity and Electrospinning
description	Polycaprolactone (PCL)/halloysite composites were prepared to compare the effect of homogenization technology on the structure and properties of the composites. Halloysite content changed from 0 to 10 vol% in six steps and homogeneity was characterized by various direct and indirect methods. The results showed that the extent of aggregation depends on technology and on halloysite content; the size and number of aggregates increase with increasing halloysite content. Melt mixing results in more homogeneous composites than the simple compression of the component powders or homogenization in solution and film casting. Homogeneity and the extent of aggregation determines all properties, including functionality. The mechanical properties of the polymer deteriorate with increasing aggregation; even stiffness depends on homogeneity. Strength and deformability decreases drastically as the number and size of aggregates increase. Not only dispersed structure, but also the physical state and crystalline structure of the polymer influence homogeneity and properties. The presence of the filler affects the preparation of electrospun fiber scaffolds as well. A part of the filler is excluded from the fibers while another part forms aggregates that complicates fiber spinning and deteriorates properties. The results indicate that spinning is easier and the quality of the fibers is better if a material homogenized previously by melt mixing is used for the production of the fibers.
format	article
author	Muriel Józó Róbert Várdai Nóra Hegyesi János Móczó Béla Pukánszky
author_facet	Muriel Józó Róbert Várdai Nóra Hegyesi János Móczó Béla Pukánszky
author_sort	Muriel Józó
title	Poly-ε-Caprolactone/Halloysite Nanotube Composites for Resorbable Scaffolds: Effect of Processing Technology on Homogeneity and Electrospinning
title_short	Poly-ε-Caprolactone/Halloysite Nanotube Composites for Resorbable Scaffolds: Effect of Processing Technology on Homogeneity and Electrospinning
title_full	Poly-ε-Caprolactone/Halloysite Nanotube Composites for Resorbable Scaffolds: Effect of Processing Technology on Homogeneity and Electrospinning
title_fullStr	Poly-ε-Caprolactone/Halloysite Nanotube Composites for Resorbable Scaffolds: Effect of Processing Technology on Homogeneity and Electrospinning
title_full_unstemmed	Poly-ε-Caprolactone/Halloysite Nanotube Composites for Resorbable Scaffolds: Effect of Processing Technology on Homogeneity and Electrospinning
title_sort	poly-ε-caprolactone/halloysite nanotube composites for resorbable scaffolds: effect of processing technology on homogeneity and electrospinning
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/e78a65d660934d64a1a7722067163b6a
work_keys_str_mv	AT murieljozo polyecaprolactonehalloysitenanotubecompositesforresorbablescaffoldseffectofprocessingtechnologyonhomogeneityandelectrospinning AT robertvardai polyecaprolactonehalloysitenanotubecompositesforresorbablescaffoldseffectofprocessingtechnologyonhomogeneityandelectrospinning AT norahegyesi polyecaprolactonehalloysitenanotubecompositesforresorbablescaffoldseffectofprocessingtechnologyonhomogeneityandelectrospinning AT janosmoczo polyecaprolactonehalloysitenanotubecompositesforresorbablescaffoldseffectofprocessingtechnologyonhomogeneityandelectrospinning AT belapukanszky polyecaprolactonehalloysitenanotubecompositesforresorbablescaffoldseffectofprocessingtechnologyonhomogeneityandelectrospinning
_version_	1718431736974540800

Poly-ε-Caprolactone/Halloysite Nanotube Composites for Resorbable Scaffolds: Effect of Processing Technology on Homogeneity and Electrospinning

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