采用接枝聚合反应在纳米ZrO2表面接枝聚对苯二甲酸乙二醇酯(PET)低聚物,以提高其与聚碳酸酯(PC)的相容性;改性纳米ZrO2与PC经过共混挤出,制备了纳米ZrOz/PC复合材料.采用FTIR、XPS、TEM、TG、接触角等测试方法对接枝改性后的纳米ZrO2进行了表征,结果表明,PET化学键合到了纳米ZrO2表面,使ZrO2疏水性显著增强,微观颗粒分散性好.对纳米ZrO2/PC复合材料进行了力学性能测试,探讨了纳米ZrOz的添加量与复合材料力学性能的关系.结果表明:纳米ZrO2/PC复合材料的力学性能较纯PC有明显改善;随着改性纳米ZrO2含量的增加,缺口冲击强度和拉伸强度都呈现出先增加后降低的趋势,分别在ZrO2质量分数为1%和0.3%时达到最大值;弯曲强度在实验范围内一直呈上升趋势,最大弯曲强度比纯PC提高2.54MPa.
参考文献
| [1] | Laredo E,Grimau M,Muller A,et al.Influence of aging and crystallinity on the molecular motions in bisphenol-A polycarbonate[J].J Polym Sci:Polym Phys,1996,34(17):2863-2879. |
| [2] | Rivaton A.Recent advances in bisphenol-A polycarbonate photodegradation[J].Polym Degrad Stab,1995,49(1):163-179. |
| [3] | 张志毅,赵宁,魏伟,吴东,孙予罕,核壳结构和层状结构改性剂的制备及其对PC性能的影响[J].工程塑料应用,2005,33(3):5-8.Zhang Zhiyi,Zhao Ning,Wei Wei,Wu Dong,Sun Yuhan.Preparation of modifiers with core-shell structure and modifiers with laminar structure and their influence on the properties of polycarbonate[J].Engineering Plastics Application,2005,33(3):5-8. |
| [4] | 郭刚,于杰,罗筑,黄婉霞,涂铭旌,金红石型纳米TiO2改性PC阳光板抗老化应用[J].东南大学学报:自然科学版,2005,35(Suppl 1):178-181.Guo Gang,Yu Jie,Luo Zhu,Huang Wanxia,Tu Mingjing.Study on ageing resistance of modified PC sun board with nanorutile-TiO2[J].Journal of Southeast University:Natural Science Edition,2005,35(Suppl 1):178-181. |
| [5] | Yoon P J,Hunter D L,Paul D R.Influence of ZnO nanoparticle filler on the properties and wear resistance of polycarbonate[J].Wear,2007,262(11/12):1504-1510. |
| [6] | 钱翼清,赵平,王卫华,烷基化纳米SiO2/MMA乳液聚合物的表征及对PC的改性效果[J].复合材料学报,2003,20(1).79-84.Qian Yiqing,Zhao Ping,Wang Weihua.Characterization of emulsion polymeric product of alkyl-nano-SiO2/MMA and modifying PC with it[J].Acta Materiae Compositae Sinica,2003,20(1):79-84. |
| [7] | Okazaki M,Murota M,Kawaguchi Y.Curing of epoxy resin by ultrafine silica modified by grafting of hyperbranched polyamidoamine using dendrimer dynthesis methodology[J].J Appl Polym Sci,2001,80:573-579. |
| [8] | Rong M Z,Ji Q L,Zhang M Q,Friedrich K.Graft polymerization of vinyl monomers onto nanosized alumina particles[J].Eur Polym J,2002,38(8):1573-1582. |
| [9] | 吴春蕾,章明秋,容敏智,纳米SiO2表面接枝聚合改性及其聚丙烯基复合材料的力学性能[J].复合材料学报,2002,19(6):62-67.Wu Chunlei,Zhang Mingqiu,Rong Minzhi.Grafting polymerization onto nanositica and its effect on mechanical properties of PP composites[J].Acta Materiae Compositae Sinica,2002,19(6):62-67. |
| [10] | 周彤辉,阮文红,王跃林,等,原位接枝改性纳米二氧化硅/聚丙烯复合材料1:结构表征[J].复合材料学报,2006,23(2):71-76.Zhou Tonghui,Ruan Wenhong,Wang Yuelin,et al.Polypropylene composites with nano-silica modified by in-situ grafting polymerization Ⅰ:Structure characterization[J].Acta Materiae Compositae Sinica,2006,23(2):71-76. |
| [11] | 孙亚光,余丽秀,二氧化锆制备及发展趋势[J].化工新型材料,2000,28(4):28-30.Sun Yaguang,Yu Lixiu.The preparations and development trend of zirconium dioxide[J].Chemical New Type Materials,2000,28(4):28-30. |
| [12] | Che J F,Luan B Y,Yang X J,Lu D L,Wang X.Graft polymerization onto nano-sized SiOz surface and application to the modification of PBT[J].Material Letters,2005,59(13):1603-1609. |
| [13] | 张兴英,程钰,赵京波,等,高分子化学[M].北京:化学化工出版社,2006:31. |
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