Mechanically Strong and Tailorable Polyimide Aerogels Prepared with Novel Silicone Polymer Crosslinkers
Polyimide (PI) aerogels were prepared using self-designed silicone polymer cross-linkers with multi-amino from low-cost silane coupling agents to replace conventional small-molecule cross-linkers. The long-chain structure of silicone polymers provides more crosslinking points than small-molecule cro...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-01-01
|
| Series: | Gels |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2310-2861/8/1/57 |
| _version_ | 1797493827562373120 |
|---|---|
| author | Zhongxin Zhang Yurui Deng Zhiyi Lun Xiao Zhang Mingyuan Yan Pan He Caihong Li Yuelei Pan |
| author_facet | Zhongxin Zhang Yurui Deng Zhiyi Lun Xiao Zhang Mingyuan Yan Pan He Caihong Li Yuelei Pan |
| author_sort | Zhongxin Zhang |
| collection | DOAJ |
| description | Polyimide (PI) aerogels were prepared using self-designed silicone polymer cross-linkers with multi-amino from low-cost silane coupling agents to replace conventional small-molecule cross-linkers. The long-chain structure of silicone polymers provides more crosslinking points than small-molecule cross-linkers, thus improving the mechanical properties of polyimide. To investigate the effects of amino content and degree of polymerization on the properties of silicone polymers, the different silicone polymers and their cross-linked PI aerogels were prepared. The obtained PI aerogels exhibit densities as low as 0.106 g/cm<sup>3</sup> and specific surface areas as high as 314 m<sup>2</sup>/g, and the maximum Young’s modulus of aerogel is up to 20.9 MPa when using (T-20) as cross-linkers. The cross-linkers were an alternative to expensive small molecule cross-linkers, which can improve the mechanical properties and reduce the cost of PI aerogels. |
| first_indexed | 2024-03-10T01:25:33Z |
| format | Article |
| id | doaj.art-1fb11af652524f2ebd43ac491cf966b2 |
| institution | Directory Open Access Journal |
| issn | 2310-2861 |
| language | English |
| last_indexed | 2024-03-10T01:25:33Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Gels |
| spelling | doaj.art-1fb11af652524f2ebd43ac491cf966b22023-11-23T13:50:36ZengMDPI AGGels2310-28612022-01-01815710.3390/gels8010057Mechanically Strong and Tailorable Polyimide Aerogels Prepared with Novel Silicone Polymer CrosslinkersZhongxin Zhang0Yurui Deng1Zhiyi Lun2Xiao Zhang3Mingyuan Yan4Pan He5Caihong Li6Yuelei Pan7State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230027, ChinaState Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230027, ChinaState Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230027, ChinaState Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230027, ChinaState Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230027, ChinaState Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230027, ChinaState Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230027, ChinaState Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230027, ChinaPolyimide (PI) aerogels were prepared using self-designed silicone polymer cross-linkers with multi-amino from low-cost silane coupling agents to replace conventional small-molecule cross-linkers. The long-chain structure of silicone polymers provides more crosslinking points than small-molecule cross-linkers, thus improving the mechanical properties of polyimide. To investigate the effects of amino content and degree of polymerization on the properties of silicone polymers, the different silicone polymers and their cross-linked PI aerogels were prepared. The obtained PI aerogels exhibit densities as low as 0.106 g/cm<sup>3</sup> and specific surface areas as high as 314 m<sup>2</sup>/g, and the maximum Young’s modulus of aerogel is up to 20.9 MPa when using (T-20) as cross-linkers. The cross-linkers were an alternative to expensive small molecule cross-linkers, which can improve the mechanical properties and reduce the cost of PI aerogels.https://www.mdpi.com/2310-2861/8/1/57aerogelpolyimidelow-cost cross-linkerssilicone polymers |
| spellingShingle | Zhongxin Zhang Yurui Deng Zhiyi Lun Xiao Zhang Mingyuan Yan Pan He Caihong Li Yuelei Pan Mechanically Strong and Tailorable Polyimide Aerogels Prepared with Novel Silicone Polymer Crosslinkers Gels aerogel polyimide low-cost cross-linkers silicone polymers |
| title | Mechanically Strong and Tailorable Polyimide Aerogels Prepared with Novel Silicone Polymer Crosslinkers |
| title_full | Mechanically Strong and Tailorable Polyimide Aerogels Prepared with Novel Silicone Polymer Crosslinkers |
| title_fullStr | Mechanically Strong and Tailorable Polyimide Aerogels Prepared with Novel Silicone Polymer Crosslinkers |
| title_full_unstemmed | Mechanically Strong and Tailorable Polyimide Aerogels Prepared with Novel Silicone Polymer Crosslinkers |
| title_short | Mechanically Strong and Tailorable Polyimide Aerogels Prepared with Novel Silicone Polymer Crosslinkers |
| title_sort | mechanically strong and tailorable polyimide aerogels prepared with novel silicone polymer crosslinkers |
| topic | aerogel polyimide low-cost cross-linkers silicone polymers |
| url | https://www.mdpi.com/2310-2861/8/1/57 |
| work_keys_str_mv | AT zhongxinzhang mechanicallystrongandtailorablepolyimideaerogelspreparedwithnovelsiliconepolymercrosslinkers AT yuruideng mechanicallystrongandtailorablepolyimideaerogelspreparedwithnovelsiliconepolymercrosslinkers AT zhiyilun mechanicallystrongandtailorablepolyimideaerogelspreparedwithnovelsiliconepolymercrosslinkers AT xiaozhang mechanicallystrongandtailorablepolyimideaerogelspreparedwithnovelsiliconepolymercrosslinkers AT mingyuanyan mechanicallystrongandtailorablepolyimideaerogelspreparedwithnovelsiliconepolymercrosslinkers AT panhe mechanicallystrongandtailorablepolyimideaerogelspreparedwithnovelsiliconepolymercrosslinkers AT caihongli mechanicallystrongandtailorablepolyimideaerogelspreparedwithnovelsiliconepolymercrosslinkers AT yueleipan mechanicallystrongandtailorablepolyimideaerogelspreparedwithnovelsiliconepolymercrosslinkers |