摘要
采用低熔点玻璃等质量替代传统的三聚氰胺聚膦酸盐(MPP)阻燃剂,与二乙基次膦酸铝(AlPi)复配协效阻燃玻纤增强尼龙66(PA66/GF)。相比MPP体系,低熔点玻璃能够大幅度缩短材料的UL94垂直燃烧时间,但低熔点玻璃当与MPP共存时,垂直燃烧性能受到负面影响。锥形量热结果表明低熔点玻璃代替MPP后,材料的成炭过程相比MPP体系滞后,但是炭层质量提高,表现为炭层致密度和强度均提升。300 h湿热老化后,AlPi复配低熔点玻璃阻燃体系能够有效减少阻燃剂的析出。低熔点玻璃的引入对材料的力学性能具有一定的负面影响。
As synergistic flame retardant of aluminum diethyl phosphinate(AlPi)flame retardant nylon(PA)66 reinforced with glass fiber,melamine polyphosphate(MPP)was replaced by low-melting glass at the mass ratio of 1∶1.The UL94 vertical combustion time was shorten dramatically when flame retardants of AlPi and low-melting glass were used together.However,when MPP and low-melting glass were used as synergists simultaneously,the vertical combustion property was influenced negatively.The results of cone calorimeter indicate a later charing process when the synergists of MPP is replaced by low-melting glass,however the quality and density of the char could be improved.After 300 h hygrothermal aging,the AlPi and low-melting glass system could effectively reduce the precipitation of flame retardant.The introduction of low melting point glass has a certain negative impact on the mechanical properties of the composite.
作者
吴长波
张永
易新
王丰
黄牧
周华龙
胡泽宇
丁超
WU Chang-bo;ZHANG Yong;YI Xin;WANG Feng;HUANG Mu;ZHOU Hua-long;HU Ze-yu;DING Chao(National-Certified Enterprise Technology Center,Kingfa Science and Technology Co.,Ltd.,Guangzhou 510520,China;Shanghai Engineering Research Center of Functionalizing Plastics,Shanghai Kingfa Science & Technology Development Co.,Ltd.,Shanghai 201714,China;Jiangsu Kingfa Sci.& Tech.Advanced Materials Co.,Ltd.,Suzhou 215300,China)
出处
《塑料工业》
CAS
CSCD
北大核心
2019年第6期114-117,131,共5页
China Plastics Industry
关键词
尼龙66
低熔点玻璃
阻燃
二乙基次膦酸铝
湿热老化
Nylon 66
Low-Melting Glass
Flame Retardant
Aluminum Diethyl Phosphinate
Hygrothermal Aging
