Crystal structure dependent tensile properties of silicone rubber: Influence of aluminium hydroxide
Aluminium hydroxide (ATH) filled silicone rubber working in a wide temperature range has to experience the crystallization process in many cases, in which mechanical properties would change greatly and its safety operation is threatened. In this paper, the structure-tensile properties relationship s...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-09-01
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| Series: | Polymer Testing |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142941822002021 |
| _version_ | 1818488812477612032 |
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| author | Ying Lin Yuhao Liu Kangning Wu Liming Wang Jianing Wang Lijian Ding |
| author_facet | Ying Lin Yuhao Liu Kangning Wu Liming Wang Jianing Wang Lijian Ding |
| author_sort | Ying Lin |
| collection | DOAJ |
| description | Aluminium hydroxide (ATH) filled silicone rubber working in a wide temperature range has to experience the crystallization process in many cases, in which mechanical properties would change greatly and its safety operation is threatened. In this paper, the structure-tensile properties relationship study of ATH filled silicone rubber from melting to crystallized state was carried out. By the differential scanning calorimetry (DSC) and broadband dielectric spectroscopy (BDS), it was found that ATH promoted heterogeneous nucleation in silicone rubber. With the increase of ATH, the proportion of rigid amorphous phase decreases. Meanwhile, the over doped ATH reduces the perfection of crystals during isothermal crystallization at −60 °C. Consequently, the elongation at break of high-content ATH filled silicone rubber with less crystalline and rigid amorphous phase dropped sharply by about 97% due to the failure of lamellae slips, which should arouse great attention for safety operation of ATH filled silicone rubber. It is thereby suggested to take the elongation at break as one of the criteria for the selection of ATH filled silicone rubber used in extremely low temperature. |
| first_indexed | 2024-12-10T16:56:02Z |
| format | Article |
| id | doaj.art-1ca7ccea4894438b9a8af979f40f50bb |
| institution | Directory Open Access Journal |
| issn | 0142-9418 |
| language | English |
| last_indexed | 2024-12-10T16:56:02Z |
| publishDate | 2022-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Polymer Testing |
| spelling | doaj.art-1ca7ccea4894438b9a8af979f40f50bb2022-12-22T01:40:45ZengElsevierPolymer Testing0142-94182022-09-01113107679Crystal structure dependent tensile properties of silicone rubber: Influence of aluminium hydroxideYing Lin0Yuhao Liu1Kangning Wu2Liming Wang3Jianing Wang4Lijian Ding5School of Electrical and Automation Engineering, Hefei University of Technology, Hefei, 230009, China; Institute of Energy, Hefei Comprehensive National Science Center, Hefei, 230031, ChinaTsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, ChinaState Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, 710049, ChinaTsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, ChinaSchool of Electrical and Automation Engineering, Hefei University of Technology, Hefei, 230009, China; Institute of Energy, Hefei Comprehensive National Science Center, Hefei, 230031, ChinaSchool of Electrical and Automation Engineering, Hefei University of Technology, Hefei, 230009, China; Institute of Energy, Hefei Comprehensive National Science Center, Hefei, 230031, China; Corresponding author. School of Electrical and Automation Engineering, Hefei University of Technology, Hefei, 230009, China.Aluminium hydroxide (ATH) filled silicone rubber working in a wide temperature range has to experience the crystallization process in many cases, in which mechanical properties would change greatly and its safety operation is threatened. In this paper, the structure-tensile properties relationship study of ATH filled silicone rubber from melting to crystallized state was carried out. By the differential scanning calorimetry (DSC) and broadband dielectric spectroscopy (BDS), it was found that ATH promoted heterogeneous nucleation in silicone rubber. With the increase of ATH, the proportion of rigid amorphous phase decreases. Meanwhile, the over doped ATH reduces the perfection of crystals during isothermal crystallization at −60 °C. Consequently, the elongation at break of high-content ATH filled silicone rubber with less crystalline and rigid amorphous phase dropped sharply by about 97% due to the failure of lamellae slips, which should arouse great attention for safety operation of ATH filled silicone rubber. It is thereby suggested to take the elongation at break as one of the criteria for the selection of ATH filled silicone rubber used in extremely low temperature.http://www.sciencedirect.com/science/article/pii/S0142941822002021Aluminium hydroxideSilicone rubberCrystal structureRigid amorphous fractionTensile property |
| spellingShingle | Ying Lin Yuhao Liu Kangning Wu Liming Wang Jianing Wang Lijian Ding Crystal structure dependent tensile properties of silicone rubber: Influence of aluminium hydroxide Polymer Testing Aluminium hydroxide Silicone rubber Crystal structure Rigid amorphous fraction Tensile property |
| title | Crystal structure dependent tensile properties of silicone rubber: Influence of aluminium hydroxide |
| title_full | Crystal structure dependent tensile properties of silicone rubber: Influence of aluminium hydroxide |
| title_fullStr | Crystal structure dependent tensile properties of silicone rubber: Influence of aluminium hydroxide |
| title_full_unstemmed | Crystal structure dependent tensile properties of silicone rubber: Influence of aluminium hydroxide |
| title_short | Crystal structure dependent tensile properties of silicone rubber: Influence of aluminium hydroxide |
| title_sort | crystal structure dependent tensile properties of silicone rubber influence of aluminium hydroxide |
| topic | Aluminium hydroxide Silicone rubber Crystal structure Rigid amorphous fraction Tensile property |
| url | http://www.sciencedirect.com/science/article/pii/S0142941822002021 |
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