| 成型工艺对碳纤维增强热塑性聚酰亚胺复合材料性能的影响 |
| |
| 引用本文： | 宋艳江,章刚,来育梅,王晓东,黄培.成型工艺对碳纤维增强热塑性聚酰亚胺复合材料性能的影响[J].中国塑料,2008(5). |
| |
| 作者姓名： | 宋艳江 章刚 来育梅 王晓东 黄培 |
| |
| 作者单位： | 南京工业大学化学化工学院; |
| |
| 基金项目： | 江苏省材料摩擦学重点实验室开放基金项目(kjsmcx04001) |
| |
| 摘 要： | 采用双螺杆挤出共混的方法,制备了热塑性聚酰亚胺(TPI)/碳纤维(CF)复合材料,考察了注射和热模压两种成型工艺对 TPI/CF 复合材料力学性能、应力-应变曲线、线性膨胀系数以及摩擦磨损性能的影响。结果表明,注射成型试样的各项力学性能均比模压成型的高,达到1.5～2.0倍;相比模压成型,注射成型试样具有较高的断裂强度和断裂伸长率,其应力-应变曲线斜率也较大;由于纤维在注射流动方向上高度取向,注射成型试样具有最佳的高温尺寸稳定性;注射成型试样的摩擦系数和磨损率为模压成型的1.7倍和1.5倍;扫描电镜分析表明,纤维在注射流动方向上高度取向,模压成型试样呈现黏着磨损,注射成型试样以磨粒磨损为主。
|
| 关 键 词： | 热塑性聚酰亚胺 碳纤维 增强 成型工艺 力学性能 |
Effect of Molding Process on Properties of TPI/CF Composites |
| |
| SONG Yan-jiang ZHANG Gang LAI Yu-mei WANG Xiao-dong HUANG Pei.Effect of Molding Process on Properties of TPI/CF Composites[J].China Plastics,2008(5). |
| |
| Authors: | SONG Yan-jiang ZHANG Gang LAI Yu-mei WANG Xiao-dong HUANG Pei |
| |
| Affiliation: | Chemistry and Chemical Engineering Institute;Nanjing University of Technology;Nanjing 210009;China |
| |
| Abstract: | The thermoplastic polyimide(TPI)/carbon fiber(CF)composites were prepared using a twin-screw extruder.The effect of molding methods(injection and compression molding)on the proper- ties of the composites was investigated.The results indicate,compared with the compression molding method,the injected composite possessed better mechanical properties.The injection molded specimen showed lower coefficient of linear expansion in machine direction.However,the injected specimen had higher friction coefficient and w... |
| |
| Keywords: | thermoplastic polyimide carbon fiber reinforcement molding process mechanical property |
| 本文献已被 CNKI 等数据库收录！ |
