孙胜然,吴东乐,罗嘉倩,许跃,刘文,徐凯丽.基于Digimat RVE的碳纤维增强聚丙烯复合材料性能分析[J].中国造纸学报,2021,(1):44-51 本文二维码信息
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基于Digimat RVE的碳纤维增强聚丙烯复合材料性能分析
Properties Analysis of Carbon Fiber Reinforced Polypropylene Composites based on Digimat-RVE
投稿时间:2020-04-14  
DOI:10.11981/j.issn.1000-6842.2021.01.44
中文关键词:  Digimat  碳纤维复合材料  造纸法  等效体积单元
Key Words:Digimat  carbon fiber composites  papermaking  RVE
基金项目:电气及新能源用纸基复合材料制备技术(2017YFB0308200)。
作者单位E-mail
孙胜然 中国制浆造纸研究院有限公司北京100102
制浆造纸国家工程实验室北京100102 
sunshengran1021@163.com 
吴东乐 中国制浆造纸研究院有限公司北京100102
制浆造纸国家工程实验室北京100102 
 
罗嘉倩 中国制浆造纸研究院有限公司北京100102
制浆造纸国家工程实验室北京100102 
 
许跃 中国制浆造纸研究院有限公司北京100102
制浆造纸国家工程实验室北京100102 
 
刘文 中国制浆造纸研究院有限公司北京100102
制浆造纸国家工程实验室北京100102 
 
徐凯丽 中国制浆造纸研究院有限公司北京100102
制浆造纸国家工程实验室北京100102 
 
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中文摘要:
      采用Digimat软件包对造纸/热压模塑法制备的碳纤维增强聚丙烯(CF/PP)复合材料建立等效体积单元(RVE),研究了碳纤维含量、碳纤维长径比和基体中碳纤维取向对CF/PP复合材料力学性能、导热性能和导电性能的影响。模拟实验结果表明,碳纤维含量从5 wt%增至30 wt%,CF/PP复合材料弹性模量和电导率分别提高290%和750%;碳纤维长径比从100提高至700,CF/PP复合材料电导率提高了约54倍;碳纤维取向张量的变化对CF/PP复合材料RVE的弹性模量和导热系数的影响可以忽略不计。Digimat软件对CF/PP复合材料导热系数的模拟值较精确,在100℃下测量的导热系数实验结果与软件模拟结果误差为0.48%。
Abstract:
      The Digimat software package was used to build representative volume element (RVE) for carbon fiber reinforced polypropylene (CF/PP) composites prepared by papermaking/hot press moulding and the influence of the carbon fiber content, aspect ratio, and fiber orientation in the matrix on the mechanical properties, thermal conductivity, and electrical conductivity of the CF/PP composites was investigated. The simulation results showed that the composite elastic modulus and electrical conductivity increased by 290% and 750%, respectively as carbon fiber content increased from 5 wt% to 30 wt%. Electrical conductivity of the CF/PP composites increased by around 54 times when the aspect ratio of carbon fibers rose from 100 to 700. The fiber orientation tensor had negligible effect on the elastic modulus and thermal conductivity of the CF/PP composites. When comparing the experimental results and the simulation results under test condition of 100℃, the error of thermal conductivity was 0.48%, indicating that the simulation results from Digimat software package was highly accurate.
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