聚磷酸铵的包覆改性及其在聚丙烯中的阻燃性研究  

The Microencapsulation of APP-Ⅱ and the Study of Its Flame Retardancy in Polypropylene

作　　者：肖洁[1] 杨林[1] 王辛龙[1] 张志业[1] 孔行健[1] 杨秀山[1] 

机构地区：[1]四川大学化工学院,四川成都610065

出　　处：《四川化工》2016年第3期12-16,共5页Sichuan Chemical Industry

摘　　要：采用原位聚合法,用三聚氰胺甲醛树脂(MF)和丙烯酸丁酯树脂(BA)对聚磷酸铵(APP-Ⅱ)进行双层包覆改性得到BMFAPP-Ⅱ。傅立叶红外光谱仪(FTIR)测试证明了APP-Ⅱ表面包覆属于物理包覆;溶解度测试显示,与APP-Ⅱ相比,改性后的产品BMFAPP-Ⅱ-2的溶解度降低了23.8%;扫描电镜(SEM)和热重(TG)测试说明了聚磷酸铵和聚丙烯(PP)之间的相容性和产品的热稳定性都提高了。将改性后产品用于阻燃PP,用极限氧指数仪(LOI)、水平垂直燃烧测试仪(UL-94)测定复合材料阻燃性,PP/BMFAPP-Ⅱ/PER的LOI值最高可达到31.9%,并通过了V-O测试,耐水性测试表明改性后产品的耐水性提高了。Microencapsulation ammonium polyphosphate crysitalline with form II （APP-II） was prepared with melamine-formaldehyde （MF） resin and acrylic （BA） resin by in situ polymerization. The results of FTIR showed that APP-II was microencapsulated physically. Water solubilltv, demonstrated, compared with APP-II, the solubility of BMFAPP-II-2 reduced by 23.8%. SEM and TG explained that the compobil- ity of APP in PP and the thermal stability were improved. When APP-II and BMFAPP-II were applied to the polypropylene （PP） respectively, the flame retardancy was evaluated by the limited oxygen index （LOI）, UL-94 testing, the LOI of PP/BMFAPP-R-II/PER reached to 31.9% and PP/BMFAPP-II/PER parsed theV-O testing. The results of water resistance demonstrated that the hydrophobicitv of microen- capsulatedAPP-II was much better.

关 键 词：聚磷酸铵 改性 聚丙烯 阻燃性 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]