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- 2015
磺化聚醚砜上浆剂对碳纤维/聚醚砜复合材料界面性能的影响
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Abstract:
为了提高碳纤维(CFs)增强热塑性树脂聚醚砜(PES)复合材料的界面结合力, 对PES进行磺化改性, 得到磺酸基聚醚砜(SPES)制备的CFs上浆剂, 研究了SPES上浆剂对CFs/PES复合材料界面性能的影响和上浆剂质量分数对CFs/PES复合材料的作用效果。结果表明: 经过SPES上浆的纤维毛丝量降低、 耐磨性提高。同时FTIR和XPS分析表明: SPES中的—SO3H基团与CFs表面微量的活性官能团发生了化学反应, 提高了增强体CFs与基体树脂PES间的黏连。当上浆剂含量为1wt%时, CFs/PES复合材料的层间剪切强度(ILSS)提高最显著, 比未上浆改性的CFs/PES复合材料的提高了24%。SEM照片证实在此浓度下CFs与PES结合更加紧密。动态力学热分析(DMTA)结果亦证明1wt%的SPES上浆剂提高了CFs/PES复合材料的玻璃化转变温度。 With the purpose to improve the interface bonding force of carbon fibers (CFs) reinforced thermoplastic resin of poly(ether sulfone) (PES), a kind of new CFs type sizing agent called sulfonated poly(ether sulfone) (SPES) was prepared by PES sulfonated modification. The effect of SPES sizing agent and its mass fraction on interfacial properties of CFs/PES composites were studied. The results show that after sizing of SPES, the fiber fuzz amount decreases, the friction resistance is impoved, and it can also infer the chemical reaction between the group of —SO3H on the SPES sample with trace reactive functional groups on surface of CFs groups from FTIR and XPS. SPES sizing agent plays a bridge role in the interface of CFs/PES composites and creates a better bonding between them. Interlaminar shear strength (ILSS) of CFs/PES composites improves most significantly than unsizing CFs/PES composites, increased by 24% when the concentration of sizing agent is 1wt%. The SEM photographs confirm a more closely combination between CFs and PES at this concentration. Dynamic mechanical thermal analysis (DMTA) also proves that the concentration of 1wt% SPES sizing agent improves the glass transition temperature of CFs/PES composites most significantly. 国家自然科学基金 (51073011)
| [1] | Guo M L. The analysis of polymer and the composites for dynamic and thermodynamic[M]. Beijing: Chemical Industry Press, 2002: 32-36 (in Chinese). 过梅丽. 高聚物与复合材料的动态热力学分析[M]. 北京: 化学工业出版社, 2002: 32-36. |
| [2] | Zhao F, Huang Y, Liu L, et al. Formation of a carbon fiber/polyhedral oligomeric silsesquioxane/carbon nanotube hybrid reinforcement and its effect on the interfacial properties of carbon fiber/epoxy composites[J]. Carbon, 2011, 49(8): 2624-2632. |
| [3] | Huang R, Qi K. Characterization of polyethersulfone (PES) resin[J]. China Plastics Industry, 1993, 5: 53-57 (in Chinese). 黄锐, 齐昆. 聚醚砜树脂的表征[J]. 塑料工业, 1993, 5: 53-57. |
| [4] | Liu J, Tian Y, Chen Y, et al. A surface treatment technique of electrochemical oxidation to simultaneously improve the interfacial bonding strength and the tensile strength of PAN-based carbon fibers[J]. Materials Chemistry and Physics, 2010, 122(2-3): 548-555. |
| [5] | Wen H C, Yang K, Ou K L, et al. Effects of ammonia plasma treatment on the surface characteristics of carbon fibers[J]. Surface and Coatings Technology, 2006, 200(10): 3166-3169. |
| [6] | Liu J, Ge H, Chen J, et al. The preparation of emulsion type sizing agent for carbon fiber and the properties of carbon fiber/vinyl ester resin composites[J]. Journal of Applied Polymer Science, 2012, 124(1): 864-872. |
| [7] | Yao L, Li M, Wu Q, et al. Comparison of sizing effect of T700 grade carbon fiber on interfacial properties of fiber/BMI and fiber/epoxy[J]. Applied Surface Science, 2012, 263: 326-333. |
| [8] | Yumitori S, Wang D, Jones F R. The role of sizing resins in carbon fibre-reinforced polyethersulfone (PES)[J]. Composites, 1994, 25(7): 698-705. |
| [9] | Liu W B, Zhang S, Hao L F, et al. Properties of carbon fiber sized with poly (phthalazinone ether ketone) resin[J]. Journal of Applied Polymer Science, 2013, 128(6): 3702-3709. |
| [10] | Wang J, Xu X N, Li K X, et al. The influence of preparation conditions on interface band force of fiber-reinforced polyethersulphone composites[J]. New Chemical Materials, 2011, 39(10): 128-130 (in Chinese). 王健, 徐旭宁, 李开喜, 等. 制备工艺对单向连续碳纤维增强聚醚砜复合材料层间结合强度的影响[J]. 化工新型材料, 2011, 39(10): 128-130. |
| [11] | Morgan P. Carbon fibers and their composites[M]. Boca Raton, Florida: Taylor & Francis, 2005: 347-367. |
| [12] | Liu J, Bai Y X, Tian Y L, et al. Effect of the process of electrochemical modification on the surface structure and properties of PAN-based carbon fibers[J]. Acta Materiae Compositae Sinica, 2012, 29(2): 16-25 (in Chinese). 刘杰, 白艳霞, 田宇黎, 等. 电化学表面处理对碳纤维结构及性能的影响[J]. 复合材料学报, 2012, 29(2): 16-25. |
| [13] | Severini F, Formaro L, Pegoraro M, et al. Chemical modification of carbon fiber surfaces[J]. Carbon, 2002, 40(5): 735-741. |
| [14] | Yuan H, Zhang S, Lu C, et al. Improved interfacial adhesion in carbon fiber/polyether sulfone composites through an organic solvent-free polyamic acid sizing[J]. Applied Surface Science, 2013, 279: 279-284. |
| [15] | Nishimura I. Sized carbon fiber strand, and prepreg containing the carbon fiber as reinforcing fiber and its molded product: JP Patent, JP10266076[P]. 1998-10-06. |
| [16] | Cao X, Wen Y F, Zhang S C, et al. A heat-resistant emulsifying sizing agent for carbon fibers[J]. New Carbon Materials, 2006, 21(4): 337-342 (in Chinese). 曹霞, 温月芳, 张寿春, 等. 耐温型炭纤维乳液上浆剂[J]. 新型炭材料, 2006, 21(4): 337-342. |
| [17] | National Standards Association. GB 3357-1982 Test method for interply shear strength of unidirectional fiber reinforced plastic[S]. Beijing: Standards Press of China, 1982 (in Chinese). 国家标准局. GB 3357-1982 单向纤维增强塑料层间剪切强度试验方法[S]. 北京: 中国标准出版社, 1982. |
| [18] | Guan R, Zou H, Lu D, et al. Polyethersulfone sulfonated by chlorosulfonic acid and its membrane characteristics[J]. European Polymer Journal, 2005, 41(7): 1554-1560. |
| [19] | Liu J, Guo Y X, Liang J Y. DMTA study on electrochemical oxidation effect of carbon fibers surface[J]. Acta Materiae Compositae Sinica, 2004, 21(4): 40-44 (in Chinese). 刘杰, 郭云霞, 梁节英. 碳纤维电化学氧化表面处理效果的动态力学热分析研究[J]. 复合材料学报, 2004, 21(4): 40-44. |
| [20] | Liu J, Tian Y, Chen Y, et al. A surface treatment technique of electrochemical oxidation to simultaneously improve the interfacial bonding strength and the tensile strength of PAN-based carbon fibers[J]. Materials Chemistry and Physics, 2010, 122(2-3): 548-555. |
