全文下载：2013030231
李永强a，郝秋芬a，杨晶巍b，王勇b，唐林生a*
（青岛科技大学 a.化工学院；b.环境与安全工程学院，山东 青岛 266042）
摘要： 对Ⅱ型聚磷酸铵（APP-II）和三（2-羟乙基）异氰尿酸酯（赛克）协同阻燃聚丙烯进行了研究。结果表明，APP-II 和赛克以质量比为2.5∶1复合而成的阻燃剂对PP具有良好的协同阻燃作用。当该阻燃剂添加量为30％（质量分数）时，PP的极性氧指数（LOI）为30.7%，阻燃级别达FV-0级，燃烧时的热释放速率、质量损失速率和总热释放量明显降低。热重和燃烧残余物分析结果表明，高温下APP能够促使三（2-羟乙基）异氰尿酸酯（THEIC）和PP成炭，而APP和THEIC分解释放出的氨气使炭层膨胀，由此形成的致密膨胀炭层通过隔绝作用而产生阻燃和抑烟作用。
关键词： Ⅱ型聚磷酸铵； 三（2-羟乙基）异氰尿酸酯； 协同阻燃； 聚丙烯
中图分类号： TQ 325.1文献标志码： A
Synergistic Flame Retardancy of Type ⅡAmmonium Polyphosphate and 1,3,5-Tri(2-hydroxyethyl) Cyanuric Acid in Polypropylene
LI Yong-qianga, HAO Qiu-fena, YANG Jing-weib, WANG Yongb, TANG Lin-shenga
(a.CollegeofChemical Engineering;
b.CollegeofEnvironmentand Safety Engineering,QingdaoUniversityof Science and Technology,Qingdao266042,China)
Abstract: Synergistic flame retardancy of type II ammonium polyphosphate (APP-II) and 1,3,5-Tri(2-hydroxyethyl) cyanuric acid (THEIC) in polypropylene(PP) was studied. The experimental results showed that the composite consisted of 2.5 parts f APP-II and 1 part of THEIC has good synergistic flame retardance in PP. When the loading of the flame retardants in PP was 30% based on the total weight, the LOI of the flame retarded PP was 30.7%, and the flame retardancy class meet FV-0, the heat release rate, mass loss rate and total heat release were decreased obviously. The thermogravimetric results and the analysis of the residues after the combustion indicated that APP-II can char THEIC and PP under higher temperatures, and ammonia released from the decomposition of APP-II and THEIC intumesee the char. The intumescent charred layer results in flame retardancy and smoke-suppression by disconnection.
Key words:ttype Ⅱ ammonium polyphosphate; 1,3,5-tris(2-hydroxyethyl)cyanuric acid; synergistic flame retardancy; polypropylene
收稿日期：2012-07-14
作者简介：李永强（1986—），男，硕士研究生.*通信联系人.
