EG与GF改性聚氨酯保温材料的阻燃及力学性能  

Flame-Retardant and Mechanical Properties of Polyurethane Insulation Materials Modified by EG and GF

作　　者：王圣程 姜慧[1] 张云峰[2,3] 禄利刚 Wang Shengcheng;Jiang Hui;Zhang Yunfeng;Lu Ligang(School of Civil Engineering,Xuzhou University of Technology,Xuzhou 221018,China;School of Safety Engineering,China University of Mining and Technology,Xuzhou 221116,China;Xuzhou Safe-zike Polymer Materials Co.Ltd.,Xuzhou 221008,China)

机构地区：[1]徐州工程学院土木工程学院,江苏徐州221018 [2]中国矿业大学安全工程学院,江苏徐州221116 [3]徐州赛孚瑞科高分子材料有限公司,江苏徐州221008

出　　处：《工程塑料应用》2018年第11期11-15,共5页Engineering Plastics Application

基　　金：全国建筑材料行业科技创新计划项目(M2018J08);徐州工程学院科研项目(XKY2017119)

摘　　要：为提高聚氨酯保温材料应用的安全性,利用无机材料可膨胀石墨(EG)与玻璃纤维(GF)对聚氨酯保温材料进行改性。通过测试常规与改性聚氨酯保温材料的热重、极限氧指数(LOI)、压缩强度与剪切强度,对比分析EG与GF对聚氨酯保温材料阻燃及力学性能的影响。结果表明,聚氨酯保温材料的热稳定性随着EG质量的增加而逐渐增强,LOI随着EG质量的增加呈指数上升,但压缩强度和剪切强度出现不同程度的下降;EG和GF同时使用时,能协同增加聚氨酯保温材料的阻燃性能,但GF的影响有限;随着GF添加量的增加,聚氨酯保温材料的力学性能先上升后下降,EG质量分数为8.1%时,GF最佳质量分数为10.2%。In order to improve the application safety of polyurethane insulation materials,inorganic materials expanded graphite(EG)and glass fiber(GF)were used to modify polyurethane insulation materials.The effects of EG and GF on the flame-retardant and mechanical properties of conventional and modified polyurethane insulation materials were compared and analyzed by testing their thermogravimetric,oxygen index,compressive strength and shear strength.The results show that the thermal stability of polyurethane insulation materials increases with the increase of EG content,the oxygen index increases exponentially with the increase of EG content,but the compressive strength and shear strength decrease in varying degree.When EG and GF are used at the same time,the flame-retardant properties of polyurethane insulation materials can be increased synergistically,but GF has an effect on it.With the increase of GF content,the mechanical properties of polyurethane insulation materials increase first and then decrease,which can predict the optimal GF content.When the fraction mass of EG is 8.1%,the optimum GF content is 10.2%.

关 键 词：聚氨酯保温材料 可膨胀石墨 玻璃纤维 阻燃性能 力学性能 

分 类 号：TQ328.3[化学工程—合成树脂塑料工业]