摘要
以2-羧乙基苯基次膦酸(CEPPA)和三聚氰胺(ME)为原料,合成了2-羧乙基苯基次膦酸三聚氰胺盐(CEPPAME),并用FTIR和~1H-NMR对产物结构进行了表征。将CEPPAME用于丙烯腈-丁二烯-苯乙烯共聚物(ABS)的阻燃,当CEPPAME用量为30%时,ABS阻燃体系的极限氧指数(LOI)为22.8%。锥形量热分析结果表明,加入30%的CEPPAME可使最大热释放速率与热释放总量分别降低43%和27%。FTIR和TG-DTG分析结果表明,CEPPAME能同时在气相和凝聚相起到阻燃作用。将CEPPAME与成炭剂聚对苯二甲酰乙二胺(PETA)复配,当CEPPAME用量为24%、PETA用量为6%时,ABS阻燃体系的LOI为25.2%,最大热释放速率与热释放总量分别降低了47%和32%。TGA分析结果表明,PETA促进了体系的成炭,增强了凝聚相的阻燃作用。
Melaminium（2-carboxyethyl）（phenyl）phosphinate（CEPPAME） were synthesized by the reaction of 2-carboxyethyl phenylphosphinic acid with melamine, and characterized by FTIR and ~1H-NMR. CEPPAME was used to improve the flame retardancy of ABS resins. When the loading of CEPPAME was 30%, the LOI of ABS/CEPPAME was 22.8%. The results of cone calorimeter test show that the maximum heat release rate and total heat release amount are reduced by 43% and 27%, respectively, when 30% CEPPAME is added. FTIR and TG-DTG analysis show that CEPPAME can simultaneously act as flame retardant in both gas phase and condensed phase. CEPPAME and charring agent of poly（p-ethylene terephthalamide）（PETA） were combinated. When the loading of CEPPAME was 24% and PETA was 6%, the LOI of the blend was 25.2%, PHRR and THR were decreased by 47% and 32%, respectively. TGA analysis show that PETA promotes the char formation of the system and enhances the flame retardance of the condensed phase.
出处
《塑料科技》
CAS
北大核心
2017年第11期103-108,共6页
Plastics Science and Technology
