摘要
以聚醚多元醇450、PPG210和异氰酸酯PM200为原料,添加阻燃剂,采用一步法制备硬质聚氨酯弹性体,通过改变阻燃剂的种类及用量,研究其对弹性体性能的影响。研究发现,阻燃剂能明显改善聚氨酯弹性体的阻燃性能,但也在一定程度上影响了材料的力学性能、电阻率和耐热性能,使用固体阻燃剂的力学性能耐热性能改善最为明显;随着甲基膦酸二甲酯(DMMP)用量增加,材料力学性能呈现下降趋势,阻燃性能明显提高;当使用10份的阻燃剂DMMP时,综合效果最优。
Using polyether polyol 450,PPG210 and isocyanate PM200 as raw materials,the rigid polyurethane elastomer was prepared by one-step method using additive flame retardant.By changing the type and dosage of flame retardants,the effect on the properties of elastomers was studied.It is found that flame retardants can obviously improve the flame retardancy of polyurethane elastomers,but also affect the mechanical properties,resistivity and heat resistance of the materials to some extent.The mechanical properties of solid flame retardants are improved most obviously.As the amount of dimetyyl methyl phosphonate(DMMP)increases,the mechanical properties of the material decrease and the flame retardant properties increase obviously.When the addition of flame retardant DMMP is 10 phr,the comprehensive effect is optimal.
作者
徐祥
沈照羽
崔胜恺
李廷廷
吕小健
冯国玉
刘锦春
XU Xiang;SHEN Zhao-yu;CUI Sheng-kai;LI Ting-ting;L Xiao-jian;FENG Guo-yu;LIU Jin-chun(Key Laboratory of Rubber-Plastic,Ministry of Education Qingdao University of Science&Technology,Qingdao 266042,China;Shandong Longxiang New Material Technology Co.,Ltd.,Dezhou 253399,China)
出处
《塑料工业》
CAS
CSCD
北大核心
2021年第5期87-90,共4页
China Plastics Industry
基金
山东省重点研发计划项目(项目编号:2019GGX102044)
山东省重大工程创新工程项目(项目编号:2019JZZY020204)。
关键词
聚氨酯弹性体
力学性能
阻燃剂
介电性能
耐热性能
甲基膦酸二甲酯
Polyurethane Elastomer
Mechanical Properties
Flame Retardant
Dielectric Properties
Heat Resistance
Dimetyyl Methyl Phosphonate
