中国塑料 ›› 2012, Vol. 26 ›› Issue (01): 59-64 .DOI: 10.19491/j.issn.1001-9278.2012.01.011

• 加工与应用 • 上一篇    下一篇

以大豆油多元醇制备的硬质聚氨酯泡沫塑料的性能研究

黄玉西 田春蓉 梁书恩 王建华   

  1. 西南科技大学
  • 收稿日期:2011-08-15 修回日期:2011-10-10 出版日期:2012-01-26 发布日期:2012-01-26

Research in Properties of Rigid Polyurethane Foam Based on Soybean Oil-based Polyol

  

  • Received:2011-08-15 Revised:2011-10-10 Online:2012-01-26 Published:2012-01-26

摘要: 用大豆油多元醇替代石化聚醚多元醇制备出了硬质聚氨酯泡沫塑料(RPUF),考察了石化聚醚多元醇和大豆油多元醇的比例以及RPUF密度对RPUF性能的影响。结果表明,随着大豆油多元醇用量的增加,RPUF的冲击强度和压缩模量减小,压缩屈服点逐渐消失,玻璃化转变温度升高;但随着大豆油基RPUF密度的增加,其冲击强度、压缩模量和储能模量都得到了提高,压缩模量最高可达56.44 MPa。

关键词: 大豆油多元醇, 硬质聚氨酯泡沫塑料, 力学性能, 热稳定性能

Abstract: Petrochemical polyol was partially replaced with soybean oil-based polyol in the preparation of rigid polyurethane foam (RPUF). The effects of fraction of soybean oil-based polyol and density of RPUF on the properties of RPUF were studied. It showed that with increasing contents of soybean oil-based polyol, impact strength and compression modulus of RPUF reduced, however, the yield point gradually disappeared, and glass-transition temperature increased. With increasing density, the impact strength, compression modulus, and storage modulus of RPUF increased, the compression modulus reached 56.44 MPa.

Key words: soybean oil-base polyol, rigid polyurethane foam, mechanical property, thermal stability

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