氮-磷膨胀阻燃剂对聚苯乙烯泡沫的阻燃改性  

Flame Retardation Modification on Polystyrene Foam by Nitrogen-phosphorus Intumesent Flame Retardants

作　　者：黄健[1] 田峻源[2] 马保国[2] 赵子强 方晨炜[2] 洪正东[2] 

机构地区：[1]武汉理工大学绿色建筑材料及制造教育部工程研究中心,武汉430070 [2]武汉理工大学材料科学与工程学院,武汉430070 [3]中建商品混凝土天津有限公司,天津300450

出　　处：《武汉理工大学学报》2013年第9期30-35,共6页Journal of Wuhan University of Technology

基　　金：国家"十二五"科技支撑计划(2011BAJ04B02;2011BAJ03B03)

摘　　要：研究了聚磷酸铵(APP)、三聚氰胺(MA)和季戊四醇(PT)组成的三元氮-磷膨胀型阻燃剂(NPR)对聚苯乙烯泡沫(EPS)的阻燃改性,通过评估添加NPR的EPS的燃烧行为,对配方进行了优化。研究结果表明,三元阻燃组分在EPS的燃烧中相互协同,形成膨胀炭层进行阻燃;NPR的添加会使EPS拉拔强度降低,但添加量为40%时拉拔强度仍≥0.1MPa;当质量比APP∶PT∶MA=3∶1∶1时,EPS的氧指数可达到27.76%,垂直燃烧等级达到V-0级,自熄灭时间达到3.65s,起到较好的阻燃效果。The flame retardation modification on polystyrene foam（EPS） by nitrogen-phosphorus intumesent flame re-tardants which comprises Ammonium Polyphosphate（APP）, melamine（MA）and pentaerythritol （PT） has been re-searched in this paper. The formula has been optimized through the assessment of the combustion behavior of the modi-fied EPS. The research result shows, in the mutual cooperation, these three flame retardants form expansion of carbon layer to resist burning. Adding NPR will decrease the pull strength of EPS, but the strength will be still above 0.1 MPa when the adding amount is 40%. When the mass ratio is APP - PT ： MA=3 ： 1 ： 1, the oxygen index achieves 27.76 %, the vertical burning level reaches V-0 level and the time of self-quenching is 3. 65 s. And this formula has a good flame re- tardant effect.

关 键 词：氮-磷膨胀型阻燃剂 聚苯乙烯 膨胀炭层 氧指数 拉拔强度 

分 类 号：TQ314.24[化学工程—高聚物工业]