|
| Swelling Degradation of Carbon Fiber Composites in Solid Rocket Engine Shells |
| Received:July 25, 2024 Revised:August 11, 2024 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2024.11.011 |
| KeyWord:solid engine shell amine-cured resin-based carbon fiber composite carbon fiber recycling swelling degradation chemical method |
| Author | Institution |
| NIE Ting |
Zhijian Laboratory,Xi'an , China |
| WANG Huanchun |
Zhijian Laboratory,Xi'an , China ;Shaanxi Key Laboratory of Special Energy Chemistry and Materials, Xi'an , China |
| LI Ruiyi |
Missile Engineering College,Rocket Force University of Engineering, Xi'an , China |
| MA Lan |
Zhijian Laboratory,Xi'an , China ;Missile Engineering College,Rocket Force University of Engineering, Xi'an , China |
| WANG Xuanjun |
Zhijian Laboratory,Xi'an , China ;Shaanxi Key Laboratory of Special Energy Chemistry and Materials, Xi'an , China |
|
| Hits: |
| Download times: |
| Abstract: |
| The work aims to degrade solid engineshell and recycle its high-performance carbon fiber.The swelling effect of N-methylpyrrolidone (NMP), dimethylformamide (DMF), dimethylacetamide (DMAC) and acetic acid (CH3COOH) on CFRP based on mixed resin was compared, and the effect of different factors (temperature and time) on swelling was analyzed. Then, the swelling solid engine shell composite was degraded in diethylene glycol (DEG)-potassium hydroxide (KOH) system at low temperature and atmospheric pressure. NMP had the best swelling effect on solid engine shell composite after 2 hours of swelling treatment, and the swelling rate reached 180.81%, which was far higher than DMF, DMAC and CH3COOH in swelling effect. The temperature had an obvious effect on the swelling effect of each solvent. The swelling solvent and the polymer matrix did not react chemically. It could be regenerated by rotary evaporation. The degradation rate of resin was close to 100%, and the carbon fiber (CF) with clean surface and mechanical properties of more than 90% could be obtained. A green treatment method of solid engine shell composite has been obtained, realizing the degradation and recycle of amine-cured epoxy resin-based carbon fiber composite. |
| Close |
|
|
|