剥离型Nano-OMMT协同IFR高效阻燃PP的机理分析  

Mechanism Analysis of Stripped and Organically Modified Nano-Montmorillonite Synergistic Intumescent Flame Retarded Polypropylene

作　　者：吴正环 杜晋[1,3] 郭俊鑫 杜开辉 谷历文 WU Zhenghuan;DU Jin;GUO Junxin;DU Kaihui;GU Liwen(National Mold Product Quality Supervision&Inspection Center,Dongguan Quality Supervision Testing Center,Dongguan,Guangdong 523841,China;The Key Laboratory of Polymer Processing Engineering of Ministry of Education,National Engineering Research Center of Novel Equipment of Polymer Processing,South China University of Technology,Guangzhou,Guangdong 510640,China;National-Local Joint Engineering Laboratory of Intelligent Manufacturing Oriented Automobile Die&Mould,School of Mechanic and Engineering,Tianjin University of Technology and Education,Tianjin 300222,China;Golfer Co.,Ltd.,Weifang,Shandong 261000,China)

机构地区：[1]国家模具产品质量监督检验中心,东莞市质量监督检测中心,广东东莞523841 [2]聚合物成型加工工程教育部重点实验室,华南理工大学聚合物新型成型装备国家工程研究中心,华南理工大学,广东广州510640 [3]汽车模具智能制造国家地方联合工程实验室,天津职业技术师范大学机械工程学院,天津300222 [4]歌尔股份有限公司,山东潍坊261000

出　　处：《塑料》2021年第5期46-50,共5页Plastics

基　　金：中国博士后基金面上项目(2019M662818)。

摘　　要：通过微波高效剥离纳米蒙脱土,并对其有机表面进行改性,再将其与膨胀阻燃剂复配来高效协同阻燃聚丙烯。研究了不同的微波工艺、组分参数对聚丙烯纳米阻燃复合材料的热稳定性、结晶性、燃烧性能以及微观形貌的影响,并综合分析了其高效阻燃的机理。研究结果表明,当微波工艺为阶段1(微波功率800 W,持续5 min),阶段2(微波功率240 W,持续2 min)时,能够最高效地剥离纳米蒙脱土并对有机表面改性。3%的纳米蒙脱土可将膨胀阻燃聚丙烯复合材料的残炭量提升45.8%,结晶度提升70%,并且充分发挥二维屏障作用,提升燃烧时的成炭质量和成炭速度,最终,全面改善膨胀阻燃聚丙烯复合材料的阻燃性能和结晶性能。Nano-montmorillonite was stripped efficiently by microwave,of which the surface was organically modified simultaneously.The effects of different procedure parameters of microwave technology and component parameters on the thermal stability,crystallinity,combustion performance and micro morphology of flame retarded polypropylene nanocomposite were explored,moreover,the mechanism of high-performance flame retardancy was analyzed.The research results showed that when the microwave process was stage 1(microwave power was 800 W,lasting for 5 min),and stage 2(microwave power was 240 W,lasting for 2 min),Nano-montmorillonite could be stripped and surface organically modified most effectively;and 3%Nano-montmorillonite could increase the char residue and crystallinity of intumescent flame retarded polypropylene nanocomposites by 45.8%and 70%,and give full play to the role of two-dimensional barrier,the flame retardancy and crystallinity of intumescent flame retarded polypropylene nanocomposite were greatly ameliorated.

关 键 词：微波工艺 有机改性纳米蒙脱土 膨胀阻燃剂 协同阻燃 聚丙烯 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]