摘要
在研究了氢氧化铝(ATH)与氢氧化镁(MH)复配阻燃线性低密度聚乙烯(LLDPE)的基础上,重点研究微胶囊红磷(MRP)、MRP和硼酸锌(ZB)复合在LLDPE/ATH/MH中的协同阻燃及抑烟作用。燃烧性能研究表明,MRP在LLDPE/ATH/MH复配体系中有良好的协同阻燃效果;MRP与ZB复合能够更好地发挥协同阻燃作用,复配阻燃剂添加量为93phr时,LLDPE/ATH/MH/MRP/ZB体系的LOI值高达38.1%,最大烟密度(Dm)为53。热失重分析和光电子能谱分析表明,协同阻燃抑烟作用以凝聚相交联成炭为主。
On the basis of research on compounding aluminium hydroxide(ATH) and magnesium hydroxide (MH) with LLDPE, the synergistic flame-retardant and smoking suppression effect of microencapsulated red phosphorus (MRP) and its compounding with zinc borate(ZB) in LLDPE/ATH/MH were studied. The research of combustion performance indicates that MRP has good synergistic flame retardant effect in LLDPE/ATH,/MH and the compounding of MRP and ZB can act better. The limiting oxygen index (LOI) of the LLDPE/ATH/MH/MRP/ZB system can rise up to 38.1% and the maximum smoke density (Din) can decrease to 53 when the addition of flame retardants is 93 phr. The thermogravimetic analysis (TGA) and X-ray photoelectron spectroscopy (XPS) results show that the cross linking and char formation dominate in the synergism flame retardant and suppressing smoke effect in condensed phase.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2014年第7期56-59,共4页
Polymer Materials Science & Engineering
关键词
线性低密度聚乙烯
无卤阻燃
抑烟
协同作用
linear low density polyethylene
halogen-free flame-retardant
smoke suppression
synergism