研究了不同添加剂对碳纤维增强酸酐固化环氧树脂复合材料在亚临界水中降解的影响,通过IR、GC-MS等分析,确定了环氧树脂的分解机理主要为酯键的断裂.结果表明,KOH与苯酚对酸酐固化环氧树脂的分解没有协同效应,碱性物质更有利于酯键的断裂.甲基四氢邻苯二甲酸酐固化的环氧树脂增强碳纤维复合材料在反应温度为250℃、反应时间为60 min、KOH浓度为0.2 mol/L时可完全分解,回收碳纤维的拉伸强度和表面形貌未受影响.
参考文献
| [1] | Pimenta S,Pinho S T.Recycling Carbon Fibre Reinforced Polymers for Structural Applications:Technology Review and Market Outlook[J].Waste Manage,2011,31(2):378-392. |
| [2] | Dang W R,Kubouchi M,Yamamoto S,et al.An Approach to Chemical Reycling of Epoxy Resin Cured with Amine Using Acid[J].Polymer,2002,43(10):2953-2958. |
| [3] | Dang W R,Kubouchi M,Sembokuya H,et al.Chemical Recycling of Glass Fiber Reinforced Epoxy Resin Cured with Amine Using Nitric Acid[J].Polymer,2005,46 (6):1905-1912. |
| [4] | Braun D,Gentzkow W V,Rudolf A P.Hydrogenolytic Degradation of Thermosets[J].Polym Degrad Stab,2001,74(1):25-32. |
| [5] | Hyde J R,Lester E,Kingman S,et al.Supercritical Propanol,a Possible Route to Composite Carbon Fibre Recovery:a Viability Study[J].Composites:Part A,2006,37(11):2171-2175. |
| [6] | Pinero-Hernanz R,Garcia-Serna J,Dodds C,et al.Chemical Recycling of Carbon Fibre Composites Using Alcohols under Subcritical and Supercritical Conditions[J].J Supercrit Fluids,2008,46(1):83-92. |
| [7] | Jiang G,Pickering S J,Lester E H,et al.Characterisation of Carbon Fibres Recycled from Carbon Fibre/Epoxy Resin Composites Using Supercritical n-Propanol[J].Composites:Part A,2009,69 (2):192-198. |
| [8] | Jiang G Z,Pickering S J,Lester E H,et al.Decomposition of Epoxy Resin in Supercritical Isopropanol[J].Ind Eng Chem Res,2010,49(10):4535-4541. |
| [9] | Gersifi K E,Destais-Orvoen N,Durand G,et al.Glycolysis of Epoxide-amine Hardened Networks:Ⅰ.Diglycidylether/aliphaitc Amines Model Networks[J].Polymer,2003,44(14):3795-3801. |
| [10] | Gersifi K E,Durand G,Tersac G.Solvolysis of Bisphenol a Diglycidyl Ether/anhydride Model Networks[J].Polym Degrad Stab,2006,91 (4):690-702. |
| [11] | Morin C,Loppinet-Serani A,Cansell F,et al.Near-and Supercritical Solvolysis of Carbon Fibre Reinforced Polymers (CFRPs) for Recycling Carbon Fibers as a Valuable Resource:State of the Art[J].J Supercrit Fluids,2012,66 (SI):232-240. |
| [12] | CHEN Zhongwu,MENG Linghui,HUANG Yudong.Recycling of Thermoset Composite Materials with Sub-and Supercritical Water[J].Thermosetting Resin,2008,23 (3):36-40 (in Chinese).陈中武,孟令辉,黄玉东.采用超临界/亚临界水回收热固性树脂基复合材料[J].热固性树脂,2008,23(3):36-40. |
| [13] | Pinero-Hemanz R,Dodds C,Hyde J,et al.Chemical Recycling of Carbon Fibre Reinforced Composites in Nearcritical and Supercritical Water[J].Composites:Part A,2008,39(3):454-461. |
| [14] | Liu Y Y,Shan G H,Meng L H.Recycling of Carbon Fibre Reinforced Composites Using Water in Subcritical Conditions[J].Mater Sci Eng A,2009,520(1/2):179-183. |
| [15] | Bai Y P,Wang Z,Feng L Q.Chemical Recycling of Carbon Fibre Reinforced Epoxy Resin Composites in Oxygen in Supercritical Water[J].Mater Des,2010,31 (2):999-1002. |
| [16] | Liu Y,Liu J,Jiang Z W,et al.Chemical Recycling of Carbon Fibre Reinforced Epoxy Resin Composites in Subcritical Water:Synergistic Effect of Phenol and KOH on the Decomposition Efficiency[J].Polym Degrad Stab,2012,97 (3):214-220. |
| [17] | Braun D,Gentzkow W,Rudolf A P.Hydrogenolytic Degradation of Thermosets[J].Polym Degrad Stab,2001,74(1):25-32. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%