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Effect of Wax Additives and Silanization of Diatom Surfaces on Thermomechanical Properties of Polylactide Composites
In the present study, tests were conducted on high-filled composite samples on a polylactide matrix, modified with diatomaceous earth, three types of silanes, and natural and synthetic wax. The obtained samples were characterized in terms of the effect of modifications on mechanical properties (tens...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9784152/ https://www.ncbi.nlm.nih.gov/pubmed/36559878 http://dx.doi.org/10.3390/polym14245511 |
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author | Dobrosielska, Marta Dobrucka, Renata Pajewska-Szmyt, Martyna Kozera, Paulina Gabriel, Ewa Głowacka, Julia Brząkalski, Dariusz Kurzydłowski, Krzysztof J. Przekop, Robert E. |
author_facet | Dobrosielska, Marta Dobrucka, Renata Pajewska-Szmyt, Martyna Kozera, Paulina Gabriel, Ewa Głowacka, Julia Brząkalski, Dariusz Kurzydłowski, Krzysztof J. Przekop, Robert E. |
author_sort | Dobrosielska, Marta |
collection | PubMed |
description | In the present study, tests were conducted on high-filled composite samples on a polylactide matrix, modified with diatomaceous earth, three types of silanes, and natural and synthetic wax. The obtained samples were characterized in terms of the effect of modifications on mechanical properties (tensile strength, flexural strength, and impact resistance) or processing properties, e.g., melt flow rate (MFR). The study showed that the modification had a favorable effect on the processing properties of the composites, associated with up to an eight-fold increase in flow rate index compared with the reference sample, especially for samples treated with methyltrimethoxysilane (MTMOS), and up to a ten-fold increase under low shear-rate flow conditions. The effect of the addition of waxes of different origins (synthetic and natural) was also determined, and it was shown that beeswax tended to reduce the flow rate of the composites regardless of the silane used. The addition of synthetic wax to composites increased the tendency to agglomerate diatomaceous earth, while natural wax had a positive effect on filler dispersion. |
format | Online Article Text |
id | pubmed-9784152 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-97841522022-12-24 Effect of Wax Additives and Silanization of Diatom Surfaces on Thermomechanical Properties of Polylactide Composites Dobrosielska, Marta Dobrucka, Renata Pajewska-Szmyt, Martyna Kozera, Paulina Gabriel, Ewa Głowacka, Julia Brząkalski, Dariusz Kurzydłowski, Krzysztof J. Przekop, Robert E. Polymers (Basel) Article In the present study, tests were conducted on high-filled composite samples on a polylactide matrix, modified with diatomaceous earth, three types of silanes, and natural and synthetic wax. The obtained samples were characterized in terms of the effect of modifications on mechanical properties (tensile strength, flexural strength, and impact resistance) or processing properties, e.g., melt flow rate (MFR). The study showed that the modification had a favorable effect on the processing properties of the composites, associated with up to an eight-fold increase in flow rate index compared with the reference sample, especially for samples treated with methyltrimethoxysilane (MTMOS), and up to a ten-fold increase under low shear-rate flow conditions. The effect of the addition of waxes of different origins (synthetic and natural) was also determined, and it was shown that beeswax tended to reduce the flow rate of the composites regardless of the silane used. The addition of synthetic wax to composites increased the tendency to agglomerate diatomaceous earth, while natural wax had a positive effect on filler dispersion. MDPI 2022-12-16 /pmc/articles/PMC9784152/ /pubmed/36559878 http://dx.doi.org/10.3390/polym14245511 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Dobrosielska, Marta Dobrucka, Renata Pajewska-Szmyt, Martyna Kozera, Paulina Gabriel, Ewa Głowacka, Julia Brząkalski, Dariusz Kurzydłowski, Krzysztof J. Przekop, Robert E. Effect of Wax Additives and Silanization of Diatom Surfaces on Thermomechanical Properties of Polylactide Composites |
title | Effect of Wax Additives and Silanization of Diatom Surfaces on Thermomechanical Properties of Polylactide Composites |
title_full | Effect of Wax Additives and Silanization of Diatom Surfaces on Thermomechanical Properties of Polylactide Composites |
title_fullStr | Effect of Wax Additives and Silanization of Diatom Surfaces on Thermomechanical Properties of Polylactide Composites |
title_full_unstemmed | Effect of Wax Additives and Silanization of Diatom Surfaces on Thermomechanical Properties of Polylactide Composites |
title_short | Effect of Wax Additives and Silanization of Diatom Surfaces on Thermomechanical Properties of Polylactide Composites |
title_sort | effect of wax additives and silanization of diatom surfaces on thermomechanical properties of polylactide composites |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9784152/ https://www.ncbi.nlm.nih.gov/pubmed/36559878 http://dx.doi.org/10.3390/polym14245511 |
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