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Preparation and Performance of Silicone Rubber Composites Modified by Polyurethane
Silicone rubber composites with good comprehensive properties modified with polyurethane were obtained through mixing and vulcanizing methods. Firstly, the polyurethane prepolymer with double bonds was prepared by polytetrahydrofuran glycol (PTMG, Mn = 1000), isophorone diisocyanate (IPDI), and 2-hy...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10575395/ https://www.ncbi.nlm.nih.gov/pubmed/37835969 http://dx.doi.org/10.3390/polym15193920 |
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author | Gao, Lijun Li, Ying Fu, Wensheng Zhou, Liming Fang, Shaoming |
author_facet | Gao, Lijun Li, Ying Fu, Wensheng Zhou, Liming Fang, Shaoming |
author_sort | Gao, Lijun |
collection | PubMed |
description | Silicone rubber composites with good comprehensive properties modified with polyurethane were obtained through mixing and vulcanizing methods. Firstly, the polyurethane prepolymer with double bonds was prepared by polytetrahydrofuran glycol (PTMG, Mn = 1000), isophorone diisocyanate (IPDI), and 2-hydroxyethyl methacrylate (HEMA). The prepolymer was then added to the silicone rubber compounds to prepare silicone rubber composites, combining the excellent properties of polyurethane with the silicone rubber materials. The effects of polyurethane content on the mechanical properties, insulation, hydrophobicity, thermal stability, and flame retardancy of composites were studied in detail. The results showed that the silicone rubber composites not only have good hydrophobicity, thermal stability and flame retardant properties, but the addition of polyurethane significantly improves the tensile strength at room and low temperatures and the volume resistivity of the materials. The tensile strength increased by 32.5%, and the volume resistivity nearly doubled. The excellent electrical insulation, high hydrophobicity and good mechanical properties make the silicone rubber composites appropriate for use in the field of polymeric house arresters. |
format | Online Article Text |
id | pubmed-10575395 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-105753952023-10-14 Preparation and Performance of Silicone Rubber Composites Modified by Polyurethane Gao, Lijun Li, Ying Fu, Wensheng Zhou, Liming Fang, Shaoming Polymers (Basel) Article Silicone rubber composites with good comprehensive properties modified with polyurethane were obtained through mixing and vulcanizing methods. Firstly, the polyurethane prepolymer with double bonds was prepared by polytetrahydrofuran glycol (PTMG, Mn = 1000), isophorone diisocyanate (IPDI), and 2-hydroxyethyl methacrylate (HEMA). The prepolymer was then added to the silicone rubber compounds to prepare silicone rubber composites, combining the excellent properties of polyurethane with the silicone rubber materials. The effects of polyurethane content on the mechanical properties, insulation, hydrophobicity, thermal stability, and flame retardancy of composites were studied in detail. The results showed that the silicone rubber composites not only have good hydrophobicity, thermal stability and flame retardant properties, but the addition of polyurethane significantly improves the tensile strength at room and low temperatures and the volume resistivity of the materials. The tensile strength increased by 32.5%, and the volume resistivity nearly doubled. The excellent electrical insulation, high hydrophobicity and good mechanical properties make the silicone rubber composites appropriate for use in the field of polymeric house arresters. MDPI 2023-09-28 /pmc/articles/PMC10575395/ /pubmed/37835969 http://dx.doi.org/10.3390/polym15193920 Text en © 2023 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 Gao, Lijun Li, Ying Fu, Wensheng Zhou, Liming Fang, Shaoming Preparation and Performance of Silicone Rubber Composites Modified by Polyurethane |
title | Preparation and Performance of Silicone Rubber Composites Modified by Polyurethane |
title_full | Preparation and Performance of Silicone Rubber Composites Modified by Polyurethane |
title_fullStr | Preparation and Performance of Silicone Rubber Composites Modified by Polyurethane |
title_full_unstemmed | Preparation and Performance of Silicone Rubber Composites Modified by Polyurethane |
title_short | Preparation and Performance of Silicone Rubber Composites Modified by Polyurethane |
title_sort | preparation and performance of silicone rubber composites modified by polyurethane |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10575395/ https://www.ncbi.nlm.nih.gov/pubmed/37835969 http://dx.doi.org/10.3390/polym15193920 |
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