中国塑料 ›› 2022, Vol. 36 ›› Issue (12): 121-126.DOI: 10.19491/j.issn.1001-9278.2022.12.017

• 塑料与环境 • 上一篇    下一篇

汽车保险杠用再生聚丙烯材料的性能研究

董婧晗1(), 赵一权1, 张铜柱2, 王焰孟1, 刁帅1, 李明贺1, 徐昌竹3   

  1. 1.中汽研汽车检验中心(天津)有限公司,天津 300300
    2.中国汽车技术研究中心有限公司,天津 300300
    3.天津金发新材料有限公司,天津 300308
  • 收稿日期:2022-08-17 出版日期:2022-12-26 发布日期:2022-12-20
  • 作者简介:董婧晗(1994—),女,工程师,从事汽车材料理化分析研究工作,dongjinghan@catarc.ac.cn

Study on properties of recycled polypropylene for automobile bumpers

DONG Jinghan1(), ZHAO Yiquan1, ZHANG Tongzhu2, WANG Yanmeng1, DIAO Shuai1, LI Minghe1, XU Changzhu3   

  1. 1.CATARC Automotive Test Center (Tianjin) Co,Ltd,Tianjin 300300,China
    2.China Automotive Technology and Research Center Co,Ltd,Tianjin 300300,China
    3.Tianjin Kingfa Advanced Materials Co,Ltd,Tianjin 300308,China
  • Received:2022-08-17 Online:2022-12-26 Published:2022-12-20

摘要:

为验证再生聚丙烯(RPP)应用于汽车保险杠的可行性,研究了不同比例消费后回收聚丙烯(PCR⁃PP)的用量对RPP的冲击、拉伸、弯曲、压缩等力学性能的影响规律,并对RPP的热性能和拉伸断口形貌进行了分析。结果表明,在PCR⁃PP含量占比分别为0、10 %、30 %和50 %的情况下,随着PCR⁃PP添加量的增加,RPP力学性能总体呈现缓慢下降趋势,断裂伸长率从467 %下降至210 %,下降最为明显;当添加10 %PCR⁃PP时,材料的冲击、拉伸、弯曲性能变化较小,均可满足应用于保险杠材料的性能要求。

关键词: 保险杠, 再生材料, 聚丙烯, 力学性能

Abstract:

To verify the utilization feasibility of the recycled polypropylene (RPP) in automobile bumper, the effects of contents of post⁃consumer recycled polypropylene (PCR⁃PP) on the impact resistance and tensile, bending, and compression properties of RPP were investigated. The thermal properties and tensile fracture morphology of RPP were also analyzed. The results indicated that the mechanical properties of the RPP exhibited a slow downward trend with an increase in the content of PCR⁃PP from 0 to 50 wt %. The elongation at break decreased significantly from 467 % to 210 %. At, the RPP only presented a slight change in impact resistance and tensile and bending properties at a PCR⁃PP content of 10 wt %, which can meet the requirements of performance for bumper materials.

Key words: bumper, recycled material, polypropylene, mechanical property

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