北京航空航天大学学报 ›› 2009, Vol. 35 ›› Issue (1): 36-39.

• 论文 • 上一篇    下一篇

玻璃纤维束增强聚氨酯泡沫的拉压力学性能

卢子兴1, 邹 波1, 李忠明2, 芦 艾3   

  1. 1. 北京航空航天大学 航空科学与工程学院, 北京 100191;
    2. 四川大学 材料科学与工程学院,成都 610064;
    3. 中国工程物理研究院 化工材料研究所,绵阳 621900
  • 收稿日期:2008-01-25 出版日期:2009-01-31 发布日期:2010-09-16
  • 作者简介:卢子兴(1960-),男,河北枣强人,教授,luzixing@buaa.edu.cn.
  • 基金资助:

    国家自然科学基金资助项目(10572013); 北京市教育委员会共建资助项目(XK100060522)

Tensile and compressive mechanical properties of polyurethane foam plastics reinforced by glass fiber bundles

Lu Zixing1, Zou Bo1, Li Zhongming2, Lu Ai3   

  1. 1. School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
    2. College of Materials Science and Engineering, Sichuan University, Chengdu 610064, China;
    3. Institute of Chemical Materials, Academy of Engineering Physics of China, Mianyang 621900, China
  • Received:2008-01-25 Online:2009-01-31 Published:2010-09-16

摘要: 通过对普通聚氨酯泡沫塑料和纤维束增强聚氨酯泡沫塑料的准静态拉伸和压缩实验,研究了不同密度和纤维束质量填充比对材料力学性能的影响.实验观察表明,拉伸试件沿垂直载荷方向断裂,呈脆性破坏特征;而压缩破坏试件表面存在着斜向裂开的小块体.实验结果表明,纤维束增强泡沫塑料的应力-应变曲线具有与普通泡沫塑料相同的特征;纤维束能够有效提高材料的模量和强度;材料密度越大,纤维束和树脂基体的体积含量越高,增强效果越好.

Abstract: The quasi-static tensile and compressive experiments were performed in order to investigate the mechanical properties of conventional polyurethane foam plastics and reinforced ones by glass fiber bundles. The influence of material density and mass content of glass fiber bundles on mechanical properties was analyzed. It is observed from tests that the tensile samples happen to fracture suddenly along perpendicular direction with loading, which appears to be a brittle break. And the compressive rupture samples exist obliquely chapped block on the surface of cylinder. The experimental results show that the stress-strain curves of reinforced foams plastics are same with those of conventional foams. The young-s modulus and strength of the material can be improved by glass fiber bundles. If the density of the material is larger, and the volume fraction of the resin matrix as well as the glass fiber bundles is higher, the reinforced effect on the resin matrix by glass fiber bundles will be better.

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