High-temperature resistant polyborosilazanes with tailored structures
Boron-containing organosilicon polymers are widely used under harsh environments as preceramic polymers for advanced ceramics fabrication. However, harmful chemicals released during synthesis and the complex synthesis routes have limited their applications. To solve the problems, a two-component rou...
| Main Authors: | , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2021
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/146855 |
| _version_ | 1826119347509133312 |
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| author | Wang, Bijie Chen, Ke Li, Tianhao Sun, Xun Liu, Ming Yang, Lingwei Hu, Matthew Xiao Xu, Jian He, Liu Huang, Qing Jiang, Linbin Song, Yujie |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Wang, Bijie Chen, Ke Li, Tianhao Sun, Xun Liu, Ming Yang, Lingwei Hu, Matthew Xiao Xu, Jian He, Liu Huang, Qing Jiang, Linbin Song, Yujie |
| author_sort | Wang, Bijie |
| collection | NTU |
| description | Boron-containing organosilicon polymers are widely used under harsh environments as preceramic polymers for advanced ceramics fabrication. However, harmful chemicals released during synthesis and the complex synthesis routes have limited their applications. To solve the problems, a two-component route was adopted to synthesize cross-linked boron-containing silicone polymer (CPBCS) via a solventless process. The boron content and CPBCSs' polymeric structures could be readily tuned through controlling the ratio of multifunctional boron hybrid silazane monomers (BSZ12) and poly[imino(methylsilylene)]. The CPBCSs showed high thermal stability and good mechanical properties. The CPBCS with Si-H/C=C ratio of 10:1 showed 75 wt% char yields at 1000 °C in argon, and the heat release capacity (HRC) and total heat release (THR) are determined to be 37.9 J/g K and 6.2 KJ/g, demonstrating high thermal stability and flame retardancy. The reduced modulus and hardness of CPBCS are 0.30 GPa and 2.32 GPa, respectively. The novel polysilazanes can be potentially used under harsh environments, such as high temperatures or fire hazards. |
| first_indexed | 2024-10-01T04:58:49Z |
| format | Journal Article |
| id | ntu-10356/146855 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:58:49Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1468552023-07-14T15:49:20Z High-temperature resistant polyborosilazanes with tailored structures Wang, Bijie Chen, Ke Li, Tianhao Sun, Xun Liu, Ming Yang, Lingwei Hu, Matthew Xiao Xu, Jian He, Liu Huang, Qing Jiang, Linbin Song, Yujie School of Materials Science and Engineering Engineering::Materials Polyborosilazane Boron-containing Polymer Boron-containing organosilicon polymers are widely used under harsh environments as preceramic polymers for advanced ceramics fabrication. However, harmful chemicals released during synthesis and the complex synthesis routes have limited their applications. To solve the problems, a two-component route was adopted to synthesize cross-linked boron-containing silicone polymer (CPBCS) via a solventless process. The boron content and CPBCSs' polymeric structures could be readily tuned through controlling the ratio of multifunctional boron hybrid silazane monomers (BSZ12) and poly[imino(methylsilylene)]. The CPBCSs showed high thermal stability and good mechanical properties. The CPBCS with Si-H/C=C ratio of 10:1 showed 75 wt% char yields at 1000 °C in argon, and the heat release capacity (HRC) and total heat release (THR) are determined to be 37.9 J/g K and 6.2 KJ/g, demonstrating high thermal stability and flame retardancy. The reduced modulus and hardness of CPBCS are 0.30 GPa and 2.32 GPa, respectively. The novel polysilazanes can be potentially used under harsh environments, such as high temperatures or fire hazards. Published version 2021-03-12T03:10:44Z 2021-03-12T03:10:44Z 2021 Journal Article Wang, B., Chen, K., Li, T., Sun, X., Liu, M., Yang, L., Hu, M. X., Xu, J., He, L., Huang, Q., Jiang, L. & Song, Y. (2021). High-temperature resistant polyborosilazanes with tailored structures. Polymers, 13(3). https://dx.doi.org/10.3390/polym13030467 2073-4360 https://hdl.handle.net/10356/146855 10.3390/polym13030467 33535636 2-s2.0-85100488867 3 13 en Polymers © 2021 The Authors. 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/). application/pdf |
| spellingShingle | Engineering::Materials Polyborosilazane Boron-containing Polymer Wang, Bijie Chen, Ke Li, Tianhao Sun, Xun Liu, Ming Yang, Lingwei Hu, Matthew Xiao Xu, Jian He, Liu Huang, Qing Jiang, Linbin Song, Yujie High-temperature resistant polyborosilazanes with tailored structures |
| title | High-temperature resistant polyborosilazanes with tailored structures |
| title_full | High-temperature resistant polyborosilazanes with tailored structures |
| title_fullStr | High-temperature resistant polyborosilazanes with tailored structures |
| title_full_unstemmed | High-temperature resistant polyborosilazanes with tailored structures |
| title_short | High-temperature resistant polyborosilazanes with tailored structures |
| title_sort | high temperature resistant polyborosilazanes with tailored structures |
| topic | Engineering::Materials Polyborosilazane Boron-containing Polymer |
| url | https://hdl.handle.net/10356/146855 |
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