| ZHANG Wei,MA Lei,WANG Guo-peng,WANG Xiao-dong,ZHANG Tao,FENG Chao,XU Zheng,ZHANG Jie-ping.Application of Heat-Resistant Coating Materials for Rocket Launching Pad Use[J],46(2):144-148 |
| Application of Heat-Resistant Coating Materials for Rocket Launching Pad Use |
| Received:June 20, 2016 Revised:February 20, 2017 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2017.02.023 |
| KeyWord:thermal protection coating material rocket launching pad ablation heat insulation |
| Author | Institution |
| ZHANG Wei |
Laboratory of Catalysts and New Materials for Aerospace, Dalian Institute of Chemical and Physics, Chinese Academy of Science, Dalian , China |
| MA Lei |
Laboratory of Catalysts and New Materials for Aerospace, Dalian Institute of Chemical and Physics, Chinese Academy of Science, Dalian , China |
| WANG Guo-peng |
Laboratory of Catalysts and New Materials for Aerospace, Dalian Institute of Chemical and Physics, Chinese Academy of Science, Dalian , China |
| WANG Xiao-dong |
Laboratory of Catalysts and New Materials for Aerospace, Dalian Institute of Chemical and Physics, Chinese Academy of Science, Dalian , China |
| ZHANG Tao |
Laboratory of Catalysts and New Materials for Aerospace, Dalian Institute of Chemical and Physics, Chinese Academy of Science, Dalian , China |
| FENG Chao |
Beijing Institute of Space Launch Technology, Beijing , China |
| XU Zheng |
Beijing Institute of Space Launch Technology, Beijing , China |
| ZHANG Jie-ping |
Beijing Institute of Space Launch Technology, Beijing , China |
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| Abstract: |
| The work aims to prepare a heat-resistant coating of excellent overall performance for rocket launching pad by bilayer coating materials. A kind of heat-resistant coating material for rocket launching pad use was prepared by adding several kinds of adjuvants with epoxy resin as base substrate material, and then adding fillers and adjuvants with organic gel as the surface base material. Mechanical properties of the heat-resistant coating were studied based on adhesive force and elastic modulus. Thermal performance of the heat-resistant coating was studied by performing small engine ablation experiment. Finally, practical using effect of the heat-resistant coating after rocket launching was investigated by depositing the heat-resistant coating on a rocket launching pad. The results showed that adhesive force was up to 5.35 MPa and elastic modulus 446.72 MPa. Maximum temperature on the reverse side was no more than 40 ℃ when the heat-resistant coating material was 15 mm thick. Average linear ablation rate of the heat-resistant coating was 0.515 mm/s. The results of using the developed heat-resistant coating material on a rocket launching pad showed that the heat-resistant coating material could bear the scour by combustion-gas stream when a rocket was launched, the falling-off area of the coating was less than 10% of the whole coated area. The developed heat-resistant coating material is suitable for rocket launching pad with a favourable using effect and plays an important role in the protecting rocket launching pad. |
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