- 目录
- 保温材料与建筑节能
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含聚磷酸胺硬质聚氨酯保温材料的阻燃及热稳定
作者：刘丽红，胡新萍
（山西工程技术学院 土木与建筑工程系，山西 阳泉 045000）
摘要：通过“一步法”和“模塑发泡法”制备了一种新型含聚磷酸胺硬质阻燃聚氨酯保温材料（P/RPUF）。通过表观密度、水平垂直燃烧、极限氧指数（LOI）以及热失重分析（TGA）等对其阻燃性能进行研究。结果表明，P元素的引入能有效提高P/RPUF材料的表观密度，使其具有良好的自熄性，LOI值和水平、垂直燃烧等级均有明显提升，P/RPUF材料在高温区域具有较好的热稳定性。
关键词：硬质聚氨酯；含磷聚醚多元醇；阻燃保温材料；阻燃机理
中图分类号：TU55+1.2 文献标识码：A 文章编号：1001-702X（2018）10-0086-05
Study on the five retardant and thermal stability properties of thermal insulation material
containing polyphosphate ammonium polyurethane
LIU Lihong，HU Xinping
（Department of Civil and Architectural Engineering，Shanxi Institute of Technology，Yangquan 045000，China）
Abstract：A new type of polyphosphoric acid amine rigid polyurethane thermal insulation and flame retardant material （P/RPUF）was prepared through "one-step method" and "molded foam method". The apparent density，horizontal and vertical combustion，limiting oxygen index（LOI），and thermogravimetric analysis（TGA） methods were used to study the flame retardant properties. The results show that the introduction of P element can effectively increase the apparent density of P/RPUF material and make it have a good self-extinguishing property. The LOI value and the horizontal and vertical combustion grades are obviously improved. The P/RPUF material has good thermal stability in high temperature area.
Key words：rigid polyurethanes，phosphorus-containing polyether polyols，flame retardant and thermal insulation material，flame retardant mechanism