摘要
对碳纤维 /酚醛复合材料的分解回收处理进行了探索研究。采用超临界水为反应介质 ,在 4 0 0℃ ,Na OH水溶液的浓度为 1mol/ L,反应时间 30 m in,填充率为 0 .6 2时 ,基体树脂的分解率达到 75 %。质谱和气相色谱分析表明 ,分解产物为多种含苯环的物质 ,其中苯酚、甲基苯酚的含量在分解产物中达到 33%。随着反应温度和反应时间的增加 ,复合材料的分解率增加。 SEM分析表明 :分解后纤维表面光滑 ,没有树脂层 。
The recycle treatment of carbon fiber/phenolic composites is investigated. Using the supercritical water as the action agent, the rate of decomposition reaches 75% when the temperature is 400°C, the concentration of NaOH is 1 mol/L, the reaction time is 30 min, and the filling rate is 0.62. The gas chromatography and mass spectrometry analyses of the decomposition products indicate that they are the substance containing the benzene structure where the content of phenol and methyl phenol is 33%. The rate of decomposition increases with the increase of action temperature and time. The SEM analysis of the decomposed sample shows that the surface of fiber is smooth, which indicates the considerable decomposition effect.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2002年第3期37-41,共5页
Acta Materiae Compositae Sinica
基金
哈尔滨工业大学校基金资助 (HIT-2 0 0 0 -13 )
