玻璃钢/复合材料 ›› 2016, Vol. 0 ›› Issue (8): 62-67.

• 应用研究 • 上一篇    下一篇

长玻璃纤维增强聚丙烯复合材料热模压成型工艺的研究

唐荣华, 杨旭静, 郑娟   

  1. 湖南大学汽车车身先进设计制造国家重点实验室,长沙410082
  • 收稿日期:2016-01-25 出版日期:2016-08-28 发布日期:2016-08-28
  • 作者简介:唐荣华(1989-),男,硕士研究生,主要从事汽车复合材料工艺与装备技术方面的研究,trh_boy@163.com。
  • 基金资助:
    湖南大学汽车车身先进设计制造国家重点实验室开放基金(31115014);湖南省科学基金(12JJ9017)

RESEARCH OF HOT MOLDING PRESS ON LONG GLASS FIBER REINFORCED POLYPROPYLENE COMPOSITE

TANG Rong-hua, YANG Xu-jing, ZHENG Juan   

  1. State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body Hunan University, Changsha 410082, China
  • Received:2016-01-25 Online:2016-08-28 Published:2016-08-28

摘要: 为了提高LGFRP模压制品的基本力学性能及其性能的稳定性,把热模压成型过程细分为预热工序、模压工序和成型操作三个部分,分别对应片材加热温度、保温时间、成型压力、模具温度、保压时间、坯料转移时间以及模压排气次数七个热模压成型工艺参数,运用正交试验和单因素试验方法,分析和讨论了各工艺参数对LGFRP复合材料热模压件力学性能的影响,并优化出了较佳的工艺参数组合。结果表明,工艺参数对力学性能的影响度大小受工艺条件的影响,并且细化成型工艺可提高LGFRP热模压制品的力学性能与热模压工艺的稳定性。

关键词: 长玻纤增强聚丙烯, 热模压成型, 工艺参数, 力学性能

Abstract: To improve the basic mechanical properties and the stability of mould pressed products formed by long glass fiber reinforced polypropylene (LGFRP), the hot molding process was subdivided into three parts: preheating process, moulding process and forming operation. And, the three parts contain seven parameters which were studied with the orthogonal test and single factor test method .The effect of the seven parameters on the mechanical properties of mould pressed products prepared from LGFRP composite material was discussed and analyzed, and the better molding process parameters are optimized. The results show that the effect of process parameters on mechanical properties is influenced by processing conditions, and refine of the molding process can improve the basic mechanical properties of mould pressed products, and enhance the stability of moulding process.

Key words: long glass fiber reinforced polypropylene, hot molding process, process parameters, mechani-cal properties

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