您的位置:首页  > 论文页面

密胺树脂的增容协效作用及无卤阻燃聚苯乙烯泡沫的单体燃烧性能研究

发表时间:2016-09-30  浏览量:1405  下载量:376
全部作者: 陈 学,白时兵,刘 渊,王 琪
作者单位: 四川大学高分子研究所;高分子材料工程国家重点实验室(四川大学)
摘 要: 可发性聚苯乙烯(expandable polystyrene,EPS)/多功能缩聚型大分子氮磷膨胀型阻燃剂(macromolecular nitrogen-phosphors intumescent flame retardant,MNP)/可膨胀石墨(expandable graphite,EG)阻燃泡沫阻燃性能优异,但存在力学性能劣化和“后燃烧”等问题,需要进一步改善其力学性能和阻燃性能。选用密胺树脂(melamine resin,MT)与MNP和EG复配,利用MT的增容及阻燃协效作用,增强EPS泡粒的界面作用,进一步改善EPS泡沫的力学性能和阻燃性能,制备了力学性能和阻燃性能优异的无卤阻燃聚苯乙烯泡沫材料,并评价EPS/MNP/EG/MT阻燃泡沫的单体燃烧性能。结果表明,MT能进一步增加阻燃剂MNP和协效剂EG与EPS泡粒间的相互作用,提高阻燃EPS泡沫的弯曲强度和抗压强度,并改善EPS燃烧时的炭层结构,大幅提高炭层强度,增强气相阻燃作用,提高EPS阻燃泡沫的阻燃性能。单体燃烧试验(single burning item,SBI)表明,EPS/MNP/EG/MT阻燃泡沫的最大热释放速率(heat release rate,HRR)和最大烟释放速率(smoke production rate,SPR)较空白EPS泡沫分别推迟了430 s和230 s,这对于保障火灾初期人员的疏散逃生和消防救火具有重要意义。
关 键 词: 功能高分子材料;密胺树脂;无卤阻燃;聚苯乙烯;泡沫;单体燃烧试验
Title: Study on New Halogen Free Flame Retardance Polystyrene Foam Ⅲ: Synergistic Effect of Melamine Resin and Sing Burning character of Halogen Free Flame Retardance Polystyrene Foam
Author: CHEN Xue, BAI Shibing, LIU Yuan, WANG Qi
Organization: State Key Laboratory of Polymer Materials Engineering (Sichuan University), Polymer Research Institute of Sichuan University
Abstract: Although halogen free flame retardant expandable polystyrene (EPS)/macromolecular nitrogen-phosphors intumescent flame retardant (MNP)/expandable graphite (EG) foam has better flame retardancy, there exists some shortages such as low mechanical properties, smoldering etc.. In this article, melamine resin (MT), which can improve the compatibility between MNP/EG and EPS particles and the flame retardancy of EPS foam, was introduced into EPS/MNP/EG system and the EPS/MNP/EG/MT foam with better flame retardancy and mechanical properties was prepared. Also, single burning item (SBI) of halogen free flame retardant polystyrene foam was investigated. The results showed that MT could improve the interaction between EPS particles and MNP/EG, and the bend and compressive strengths of EPS foam were increased. At the same time, MT could improve the structure of char layer, enhance the char strength, and strengthen the effect of condensed phase, resulting in better flame retardancy. SBI test indicated that the peaks of heat release rate (HRR) and smoke production rate (SPR) of EPS/MNP/EG/MT foam were delayed about 430 s and 230 s respectively, compared to neat EPS foam, which provided times for personnel evacuation and fire fighting in the fire disasters.
Key words: functional polymer materials; melamine resin; halogen free flame retardance; polystyrene; foam; single burning item
发表期数: 2016年9月第18期
引用格式: 陈 学,白时兵,刘 渊,等. 密胺树脂的增容协效作用及无卤阻燃聚苯乙烯泡沫的单体燃烧性能研究[J]. 中国科技论文在线精品论文,2016,9(18):1858-1867.
 
0 评论数 0
暂无评论
友情链接