中国塑料 ›› 2013, Vol. 27 ›› Issue (12): 52-56 .DOI: 10.19491/j.issn.1001-9278.2013.12.010

• 材料与性能 • 上一篇    下一篇

复合阻燃剂对聚氨酯注浆材料阻燃和力学性能影响研究

杨绍斌 穆泊源 董 伟 徐晓晨   

  1. 辽宁工程技术大学 辽宁工程技术大学
  • 收稿日期:2013-06-18 修回日期:1900-01-01 出版日期:2013-08-26 发布日期:2013-08-26

Effect of Composite Flame Retardant on Flame Retarding and Mechanical Properties of Polyurethane Grouting Materials

Mu Bo-yuan   

  • Received:2013-06-18 Revised:1900-01-01 Online:2013-08-26 Published:2013-08-26

摘要: 研究了固态阻燃剂三溴新戊醇与液态阻燃剂甲基磷酸二甲酯(DMMP)复合使用时,对聚氨酯注浆材料阻燃性能及力学性能的影响。结果表明,当三溴新戊醇与DMMP复合使用,两者具有协同作用,有助于提高材料的阻燃性能,当三溴新戊醇与DMMP以1:2的比例复合时,随着复合阻燃剂添加量的增加,聚氨酯注浆材料的力学性能呈先上升后下降的趋势,并且复合阻燃剂的添加量为24 %时,材料的垂直燃烧时间为8.2 s,聚氨酯注浆材料的力学性能达到最大值,冲击强度、压缩强度、拉伸强度分别为12.47 kJ/m2和18.55、8.11 MPa,且添加阻燃剂后没有改变聚氨酯材料的主体结构,并提高了材料的热稳定性。

关键词: 聚氨酯, 注浆材料, 阻燃剂, 力学性能

Abstract: A compound flame retardant made of solid tribromoneopentyl alcohol and liquid DMMP was studied when used in grouting polyurethane. A synergetic effect was found between tribromoneopentyl alcohol and DMMP. As the laoding of compound flame retardant (tribromoneopentyl alcohol/DMMP=1:2) increased, the mechanical property of grouting polyurethane increased first and then decreased. When the loading was 24 %, the material gave rise to the highest impact toughness, compressive strength, and tensile strength, i.e., 12.47 kJ/m2, 18.55 Mpa, and 8.11MPa, respectively. In addition the vertical burning time was 8.2 s. The addition of flame retardant did not change the skeleton structure of polyurethane materials.

Key words: polyurethane, grouting materials, flame retardant, mechanical property