CAJ | 학술논문

以三聚氰胺和甲醛溶液为原料,合成了三羟甲基三聚氰胺(TMM),并将其与聚磷酸铵(APP)作为复配阻燃剂,采用聚酰亚胺预聚法制备了阻燃聚氨酯–酰亚胺(PUI)泡沫塑料.分析了TMM/APP对PUI泡沫塑料极限氧指数(LOI)、烟密度等级和炭层形貌的影响.结果表明,合成的TMM有较高的残炭率和最大热失重温度;随着TMM/APP用量的增加,泡沫的LOI增大,烟密度降低,当TMM与APP配比为1:3时LOI最高可达31.2%;TMM能改善泡沫炭层多孔的缺点.
이삼취청알화갑철용액위원료,합성료삼간갑기삼취청알(TMM),병장기여취린산안(APP)작위복배조연제,채용취선아알예취법제비료조연취안지–선아알(PUI)포말소료.분석료TMM/APP대PUI포말소료겁한양지수(LOI)、연밀도등급화탄층형모적영향.결과표명,합성적TMM유교고적잔탄솔화최대열실중온도;수착TMM/APP용량적증가,포말적LOI증대,연밀도강저,당TMM여APP배비위1:3시LOI최고가체31.2%;TMM능개선포말탄층다공적결점.
Trimethylol melamine(TMM) which was synthesized from melamine and formaldehyde was mixed with ammonium polyphosphate(APP) as complex flame retardant to prepare polyurethane-imide(PUI) foams.The effect of TMM/APP on limited oxygen index,smoke density rank and carbon layer morphology of PUI foams was analyzed.The results show that TMM has a higher char yield and the maximum weight loss temperature than melamine.The limited oxygen index increases and the smoke density rank decreases with the content of TMM/APP increasing,and the limited oxygen index of PUI foams with TMM/APP whose ratio is 1:3,is up to 31.2% at most;TMM can improve the drawback of porous carbon foam layer.