【摘要】 以新型成炭剂(CFA)、改性聚磷酸铵(MAPP)、乙烯-丙烯酸酯-马来酸酐三元共聚物熔融插层有机蒙脱土(EMH-OMMT)母粒复配成膨胀阻燃剂(IFR),与聚丙烯(PP)共混后通过流延薄膜机制备膨胀阻燃PP薄膜。对其进行了阻燃性能、力学性能测试,并运用热重分析表征了其热分解过程。相比未熔融插层OMMT和传统的4A分子筛协效剂,EMH-OMMT不仅提高了体系的阻燃性能,使薄膜(0.2mm)在IFR添加28%时通过了VTM-0级,而且明显提高了体系的力学性能。更多还原

【Abstract】 A kind of intumescent flame retardant(IFR) system consisting of novel char forming agent(CFA),modified ammonium polyphosphate(MAPP),EMH-OMMT,which prepared with OMMT/Ethylene-Acrylic Ester-Maleic Anhydride terpolymer by melting intercalation,was used in intumescent flame retardant PP film.Then fire-retardant property and mechanical properties of the PP film were tested,and the thermal decomposition process was characterized by means of thermal gravimetric analysis.Compared with the non-intercalation OMMT and conventional 4A-ZEO synergetic agents,the EMH-OMMT improved not only the flame retardancy but also the mechanical properties of the system.When the content of IFR was 28%,the flame retardant of PP film(0.2mm) reached to VTM-0 grade.更多还原