三嗪类阻燃剂的热性能及成炭机理探索  

REACHER ON THERMAL BEHAVIOUR AND CHARRING MECHANISM OF TRIAZINE FLAME RETARANT

作　　者：郝冬梅[1] 李旭[1] 林倬仕[1] 陈涛[1] 尹亮[1] 陈崇伟[1] 刘彦明[1] 

机构地区：[1]上海化工研究院新技术室,上海200062

出　　处：《工程塑料应用》2010年第12期8-11,共4页Engineering Plastics Application

基　　金：上海市科研基金资助项目(09521101800)

摘　　要：合成了一种新型三嗪类成炭剂(CA),并利用质量分数为6.7%的CA、80.3%的聚磷酸铵(APP)和13%的三聚氰胺(MA)复配而成的膨胀型阻燃剂(IFR)对聚丙烯(PP)进行阻燃。用热重分析仪研究了IFR及其阻燃PP体系的热性能,并对其阻燃成炭机理进行了探索。结果表明,IFR使PP的热降解行为发生了变化,PP/IFR 600℃时在氮气中的质量保持率达到18.05%,在空气中达到13.43%。IFR、PP/IFR的实际质量保持率比理论值高,各组分间存在着协同阻燃作用。PP/IFR在燃烧时可形成较好的膨胀炭层。A new triazine charring agent（CA） was synthesized. The intumescent flame retardant（IFR） consisting of 6.7% CA, 80.3% APP and 13% MA was used for the preparation of expansion flame retardant polypropylene（PP）. Thermal degradation be- haviors of IFR and PP/IFR systems were studied by TGA. The results of TGA proved that the thermal degradation behaviors of PP/IFR system were changed due to the addition of IFR. The char residue of PP/IFR system was 13.43% and 18.05% at 600℃ in air and N2 respectively. Because of the synergism, char residue of IFR and PP/WR system was higher than the theoretical value. SEM photographs proved that an effective foam char layer could form while burning for PP/IFR.

关 键 词：三嗪类阻燃剂 阻燃 成炭机理 

分 类 号：TQ314.248[化学工程—高聚物工业]