氨基三亚甲基磷酸钙阻燃改性硬质聚氨酯泡沫热稳定性研究  

Study on thermal stability of flame retardant rigid polyurethane foam modified by calcium amino-tris-(methylenephosphonate)

作　　者：刘冰 王志[1,2] 张旭 Liu Bing;Wang Zhi;Zhang Xu(School of Safety Engineering,Shenyang Aerospace University,Shenyang 110136,Liaoning,China;Liaoning Key Laboratory of Aircraft Fire Explosion Control and Reliability Airworthiness Technology,Shenyang 110136,Liaoning,China)

机构地区：[1]沈阳航空航天大学安全工程学院,辽宁沈阳110136 [2]沈阳航空航天大学辽宁省飞机火爆防控及可靠性适航技术重点实验室,辽宁沈阳110136

出　　处：《中国胶粘剂》2021年第7期28-33,共6页China Adhesives

基　　金：辽宁省自然科学基金项目(20180551019)。

摘　　要：合成了一种基于磷和氮的阻燃剂——氨基三亚甲基磷酸钙(Ca-ATMP),并对其进行热重分析(TGA),发现Ca-ATMP具有很好的热稳定性和高残碳率,将其掺入硬质聚氨酯泡沫塑料(RPUF)中。研究结果表明:Ca-ATMP明显提升了RPUF的高温热稳定性,T-50%和最终残碳率均随Ca-ATMP添加量的增大而增大;掺入质量分数为20%的Ca-ATMP,RPUF残碳率高达30.3%。通过Flynn-Wall-Ozawa法和Starink法分别对RPUF-0和RPUF-10Ca进行热解动力学分析,其中Flynn-Wall-Ozawa法计算所得RPUF-0和RPUF-10Ca的平均活化能分别为126.00和131.05 kJ/mol,Starink法计算所得RPUF-0和RPUF-10Ca的平均活化能分别为122.72和127.57 kJ/mol,表明改性RPUF具有很好的热稳定性。A kind of phosphorus and nitrogen-based flame retardant—calcium amino-tris-(methylenephosphonate)(Ca-ATMP)was synthesized and its thermogravimetric analysis(TGA)was carried out.It was found that Ca-ATMP had good thermal stability and high rate of carbon residue,and was blended into rigid polyurethane foam(RPUF).The research results showed that Ca-ATMP improved the high temperature thermal stability of RPUF significantly,T-50%and the final rate of carbon residue increased with the increase of Ca-ATMP content.When 20%Ca-ATMP was added,the rate of carbon residue of RPUF was up to 30.3%.The pyrolysis kinetics of RPUF-0 and RPUF-10 Ca were analyzed by Flynn-Wall-Ozawa method and Starink method,respectively.The average activation energies of RPUF-0 and RPUF-10 Ca calculated by Flynn-Wall-Ozawa method were 126.00 and 131.05 kJ/mol respectively,and the average activation energies of RPUF-0 and RPUF-10 Ca calculated by Starink method were 122.72 and 127.57 kJ/mol respectively,showing that the modified RPUF had good thermal stability.

关 键 词：硬质聚氨酯泡沫 氨基三亚甲基磷酸钙 热分解动力学 热稳定性 活化能 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]