Forming performance and environmental impact of bamboo fiber reinforced polypropylene composites based on injection molding process for automobiles

IF 4.8 2区 材料科学 Q2 MATERIALS SCIENCE, COMPOSITES
Feng Zhao, Xiaorui Liu, Tao Feng, Jialong Zhao, Wei Guo
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引用次数: 0

Abstract

To explore the potential application of plant fiber reinforced composites for automotive component applications, this study prepared bamboo fiber (BF)/nano-talc/polypropylene (PP) composites based on the injection molding process, comprehensively evaluated the effect of reinforcement materials on the forming properties of composites, including thermal performance, mechanical properties, water absorption, etc. Furthermore, taking a certain automotive injection molded interior part as the object, a life-cycle assessment from production to the gate was conducted based on the real energy and material consumption during the composite preparation process. The results indicate that adding BF and talc powder increased the thermal stability, density, hardness, viscosity, and crystallinity of the composites while reducing the water contact angle on the surface. Surface-modified BF and PP showed good compatibility. Talc powder exhibited good dispersibility in PP, and the synergistic effect of BF and talc powder effectively enhanced the composite performance. The tensile, flexural, and impact strength of the composites were improved by 40.64%, 51.48%, and 66.51%, respectively, compared with pure PP. The modulus of the composite increased nearly 2 times compared with pure PP. Additionally, the composite demonstrated good friction and wear properties. The environmental impact of the BF composite manufacturing process was significantly higher than that of pure PP. The substantial consumption of electricity, chemicals, and water resources in the extraction and modification processes of BF were the main factors. The findings of this study contribute to achieving green, high-performance BF composite manufacturing and the expansion of its applications.

Abstract Image

基于汽车注塑工艺的竹纤维增强聚丙烯复合材料的成型性能和环境影响
为探索植物纤维增强复合材料在汽车零部件中的应用潜力,本研究基于注塑成型工艺制备了竹纤维(BF)/纳米钙/聚丙烯(PP)复合材料,综合评价了增强材料对复合材料成型性能的影响,包括热性能、力学性能、吸水性等。此外,还以某汽车注塑内饰件为对象,根据复合材料制备过程中的实际能耗和物耗,进行了从生产到出厂的全生命周期评估。结果表明,添加 BF 和滑石粉提高了复合材料的热稳定性、密度、硬度、粘度和结晶度,同时降低了表面的水接触角。表面改性的 BF 和 PP 表现出良好的相容性。滑石粉在 PP 中表现出良好的分散性,BF 和滑石粉的协同作用有效提高了复合材料的性能。与纯 PP 相比,复合材料的拉伸强度、弯曲强度和冲击强度分别提高了 40.64%、51.48% 和 66.51%。与纯 PP 相比,复合材料的模量提高了近 2 倍。此外,复合材料还具有良好的摩擦和磨损性能。BF 复合材料生产过程对环境的影响明显高于纯 PP。主要原因是在 BF 的提取和改性过程中消耗了大量的电力、化学品和水资源。本研究的结果有助于实现绿色、高性能 BF 复合材料制造并扩大其应用范围。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Polymer Composites
Polymer Composites 工程技术-材料科学:复合
CiteScore
7.50
自引率
32.70%
发文量
673
审稿时长
3.1 months
期刊介绍: Polymer Composites is the engineering and scientific journal serving the fields of reinforced plastics and polymer composites including research, production, processing, and applications. PC brings you the details of developments in this rapidly expanding area of technology long before they are commercial realities.
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