Boqian Li
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Boqian Li has a total of 6 co-authors. Here are the top co-authors by number of shared publications:
- Anchao Feng
Beijing University of Chemical Technology
1 shared publication - Chen He
Aerospace Research Institute of Materials & Processing Technology, Beijing 100076, China
1 shared publication - Wei-Dong He
CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
1 shared publication - Wu Lu
Aerospace Research Institute of Materials & Processing Technology, Beijing 100076, China
1 shared publication - Yibing Zeng
Aerospace Research Institute of Materials & Processing Technology, Beijing 100076, China
1 shared publication - Ying Ren
Aerospace Research Institute of Materials & Processing Technology, Beijing 100076, China
1 shared publication
Latest Publications
- Open Access
How the Crosslinking Agent Influences the Thermal Stability of RTV Phenyl Silicone Rubber
In this work, a thermal degradation mechanism of room temperature vulcanized (RTV) phenyl silicone rubber that was vulcanized by different crosslinking agents was discussed. Firstly, RTV phenyl silicone rubber samples were prepared by curing hydroxyl-terminated polymethyldiphenylsiloxane via three crosslinking agents, namely, tetraethoxysilane (TEOS), tetrapropoxysilane (TPOS), and polysilazane. Secondly, the ablation properties of RTV phenyl silicone rubber were studied by the muffle roaster test and FT-IR. Thirdly, thermal stability of the three samples was studied by thermogravimetric (TG) analysis. Finally, to explore the thermal degradation mechanism, the RTV phenyl silicone rubber vulcanized by different crosslinking agents were characterized by TG analysis-mass spectrum (TG-MS) and pyrolysis gas chromatogram-mass spectrum (pyGC-MS). Results showed that the thermal stability of RTV phenyl silicone rubber is related to the amount of residual Si–OH groups. The residual Si–OH groups initiated the polysiloxane chain degradation via an ‘unzipping’ mechanism.
Open AccessHow the Crosslinking Agent Influences the Thermal Stability of RTV Phenyl Silicone Rubber
In this work, a thermal degradation mechanism of room temperature vulcanized (RTV) phenyl silicone rubber that was vulcanized by different crosslinking agents was discussed. Firstly, RTV phenyl silicone rubber samples were prepared by curing hydroxyl-terminated polymethyldiphenylsiloxane via three crosslinking agents, namely, tetraethoxysilane (TEOS), tetrapropoxysilane (TPOS), and polysilazane. Secondly, the ablation properties of RTV phenyl silicone rubber were studied by the muffle roaster test and FT-IR. Thirdly, thermal stability of the three samples was studied by thermogravimetric (TG) analysis. Finally, to explore the thermal degradation mechanism, the RTV phenyl silicone rubber vulcanized by different crosslinking agents were characterized by TG analysis-mass spectrum (TG-MS) and pyrolysis gas chromatogram-mass spectrum (pyGC-MS). Results showed that the thermal stability of RTV phenyl silicone rubber is related to the amount of residual Si–OH groups. The residual Si–OH groups initiated the polysiloxane chain degradation via an ‘unzipping’ mechanism.