为了研究超声振动对纤维增强复合材料注射成型特性的影响,利用自行开发的超声辅助可视化注射成型实验装置对不同玻纤(GF)含量的GF增强聚丙烯(PP)复合材料进行了超声外场作用下的可视化实验,观测分析了超声功率对复合熔体充填流动行为的影响.此外,通过对试样不同部位的金相观察,分析了超声功率对复合材料纤维取向的影响.结果表明:超声功率会对复合材料注射成型的充填流动行为及制品的纤维取向产生影响,而复合材料纤维含量对超声振动的效果也有直接影响.在纤维含量较低时,超声振动对基体材料微观形态的作用为影响复合材料充填流动性及纤维取向的主因;在纤维含量较高时,超声振动对纤维的作用为影响复合材料充填流动性及纤维取向的主因.研究结果为复合材料超声辅助成型技术的发展提供了依据.
参考文献
| [1] | Silva CA;Viana JC;van Hattum FWJ;Cunha AM.Fiber orientation in injection molding with rotating flow[J].Polymer engineering and science,20082(2):395-404. |
| [2] | Somjate Patcharaphun;Giinter Mennig.Properties Enhancement of Short Glass Fiber-Reinforced Thermoplastics via Sandwich Injection Molding[J].Polymer Composites,20056(6):823-831. |
| [3] | Min Guo;Hong Yang;Hong Tan;Cong Wang;Qin Zhang;Rongni Du;Qiang Fu.Shear Enhanced Fiber Orientation and Adhesion in PP/Glass Fiber Composites[J].Macromolecular materials and engineering,20063(3):239-246. |
| [4] | 郭建兵;薛斌;何敏;秦舒浩.短玻纤增强丙烯腈-丁二烯-苯乙烯共聚物的制备及性能[J].复合材料学报,2011(1):31-36. |
| [5] | Walter Michaeli;Thomas Kamps;Christian Hopmann.Manufacturing of polymer micro parts by ultrasonic plasticization and direct injection[J].Microsystem technologies,20112(2):243-249. |
| [6] | Hong Wu;Wenting Bao;Shaoyun Guo.Enhanced Flow Behaviors of Metallocene-Catalyzed Linear Low-Density Polyethylene During Ultrasound-Assisted Extrusion[J].Polymer engineering and science,201011(11):2229-2235. |
| [7] | Li YT;Chen GS;Guo SY;Li HL.Studies on rheological behavior and structure development of high-density polyethylene in the presence of ultrasonic oscillations during extrusion[J].Journal of Macromolecular Science. Physics,20061(1):39-52. |
| [8] | 姜开宇;段飞;田净娜;王敏杰.注射成型过程中复合材料在型腔内流动行为的可视化实验[J].高分子材料科学与工程,2012(11):129-132. |
| [9] | 熊爱华;柳和生;黄兴元;罗忠民;黄益宾;江青松.纤维参数对纤维取向及塑件变形影响模拟研究[J].材料科学与工艺,2012(03):132-138. |
| [10] | Lee KS.;Lee SW.;Chung KS.;Kang TJ.;Youn JR..Measurment and numerical simulation of three dimensional fiber orientation states in injection-molded short-fiber-reinforced plastics[J].Journal of Applied Polymer Science,20032(2):500-509. |
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