| 范欣愉,王伟,邓爵安,吕冬*.纳米碳酸钙对聚丙烯/碳纤维复合材料力学性能的影响[J].实验力学,2019,34(3):460~466 |
| 纳米碳酸钙对聚丙烯/碳纤维复合材料力学性能的影响 |
| Influence of Nano-CaCO3 on the physical properties of carbon fiber reinforced polypropylene nanocomposites |
| 投稿时间：2018-06-08 修订日期：2018-08-02 |
| DOI：10.7520/1001-4888-18-140 |
| 中文关键词: 聚丙烯 碳纤维增强 纳米碳酸钙 复合材料 力学性能 |
| 英文关键词:polypropylene carbon fiber Nano-CaCO3 composite mechanical strength |
| 基金项目:广州市科技计划项目(2016201604030031)；广州市科技计划项目(201704030055)；广州市科技计划项目(201704030128) |
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| 中文摘要: |
| 通过熔融共混的方法分别制备了聚丙烯/碳纤维、聚丙烯/纳米碳酸钙及聚丙烯/纳米碳酸钙/碳纤维复合材料，并研究了碳纤维及纳米碳酸钙对聚丙烯材料增韧增刚的效果。结果表明，少量的碳纤维能够大幅提高聚丙烯材料的弯曲模量，并有一定的增韧效果；表面改性后的纳米碳酸钙能在聚丙烯基体中均匀分散，并大幅提高聚丙烯的缺口冲击韧性，在30%添加量下(重量比)提高幅度达到5.6倍，同时模量也有一定程度提高。将改性后的纳米碳酸钙和碳纤维同时加入聚丙烯基体中，结果显示：在保证纳米碳酸钙均匀分散的前提下，复合材料的缺口冲击强度和弯曲模量可以同时得到大幅度地提升，实现了聚丙烯基复合材料的高刚高韧改性。 |
| 英文摘要: |
| Polypropylene (PP)/Carbon Fiber (CF), PP/ nano Calcium carbonate (Nano-CaCO3) binary composites and PP/Nano-CaCO3/CF ternary composite were prepared through melt blending. The toughening and stiffening effect of CF and Nano-CaCO3 were studied in this paper. The results showed that adding CF can obviously enhance the modulus of PP, and its toughness was also slightly increased. The 30 wt% grafted Nano-CaCO3 can evenly disperse in PP matrix and improve the impact strength by 5.6 times. Furthermore, the flexural modulus of the PP were enhanced very well. Based on the result, if the Nano-CaCO3 dispersed evenly in PP matrix, the notched impact strength and flexural modulus of the PP can simultaneously increase very well when Nano-CaCO3 and CF were employed. The PP composites had high toughness and stiffness was achieved. |
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