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...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-09-01
|
| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/15/19/3920 |
| _version_ | 1797575330210250752 |
|---|---|
| author | Lijun Gao Ying Li Wensheng Fu Liming Zhou Shaoming Fang |
| author_facet | Lijun Gao Ying Li Wensheng Fu Liming Zhou Shaoming Fang |
| author_sort | Lijun Gao |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-10T21:37:06Z |
| format | Article |
| id | doaj.art-abf44b88cd5f437d8efc4c5cc37a8b3b |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T21:37:06Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-abf44b88cd5f437d8efc4c5cc37a8b3b2023-11-19T14:56:25ZengMDPI AGPolymers2073-43602023-09-011519392010.3390/polym15193920Preparation and Performance of Silicone Rubber Composites Modified by PolyurethaneLijun Gao0Ying Li1Wensheng Fu2Liming Zhou3Shaoming Fang4Henan Provincial Key Laboratory of Surface & Interface Science, School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, ChinaHenan Provincial Key Laboratory of Surface & Interface Science, School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, ChinaHenan Provincial Key Laboratory of Surface & Interface Science, School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, ChinaHenan Provincial Key Laboratory of Surface & Interface Science, School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, ChinaHenan Provincial Key Laboratory of Surface & Interface Science, School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, ChinaSilicone 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.https://www.mdpi.com/2073-4360/15/19/3920silicone rubberpolyurethanecompositeinterpenetrating polymer networkmechanical property |
| spellingShingle | Lijun Gao Ying Li Wensheng Fu Liming Zhou Shaoming Fang Preparation and Performance of Silicone Rubber Composites Modified by Polyurethane Polymers silicone rubber polyurethane composite interpenetrating polymer network mechanical property |
| 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 | silicone rubber polyurethane composite interpenetrating polymer network mechanical property |
| url | https://www.mdpi.com/2073-4360/15/19/3920 |
| work_keys_str_mv | AT lijungao preparationandperformanceofsiliconerubbercompositesmodifiedbypolyurethane AT yingli preparationandperformanceofsiliconerubbercompositesmodifiedbypolyurethane AT wenshengfu preparationandperformanceofsiliconerubbercompositesmodifiedbypolyurethane AT limingzhou preparationandperformanceofsiliconerubbercompositesmodifiedbypolyurethane AT shaomingfang preparationandperformanceofsiliconerubbercompositesmodifiedbypolyurethane |