摘要
制备了一系列丙烯腈-丁二烯-苯乙烯共混物(ABS)/可膨胀石墨(EG)/包覆红磷(MRP)复合材料;并探讨了可膨胀石墨/包覆红磷体系与其他协效剂氯化聚乙烯(CPE)、三聚氰胺(MA)、氢氧化镁(MH)之间的协同效应。通过氧指数测试、热重分析(TG)及炭层的形貌观察,结果表明:当可膨胀石墨/包覆红磷质量比为15/5时,复合材料的阻燃性能较纯ABS有显著提高,材料氧指数由18%提高到28.2%。加入5%的氯化聚乙烯,材料的极限氧指数(LOI)由28.2%提高到30.7%,说明该阻燃体系与氯化聚乙烯间存在较好的协同效应,而加入的MH与MA,能降低复合材料的热损失速率,但没有提高复合材料的氧指数。
A series of ABS/expansible graphite （EG）/MRP composite materials were prepared. The research discussed synergy effect between the EG/encapsulated red phosphorus system and other synergists such as chlorinated polyethylene （CPE） and melamine （MA） and magnesium hydroxide （MH）. Through the oxygen index test and thermo-gravimetric analysis （TG） and carbon layer observation, the results showed that the limit oxygen index （LOI） of the material increased from 18% to 28.2% when the mass ratio of EG/ encapsulated red phosphorus wasl5/5. Flame retardant properties of composite materials were significantly higher than those of pure ABS. Adding 5 % of chlorinated polyethylene, the LOI of the material increased from 28.2% to 30. 7%. It illustrated the good synergy effect between the flame retardant system and chlorinated polyethylene. However, adding MH and MA can reduce the heat loss rate of the composite material, but did not improve oxygen index of the composite materials.
出处
《塑料工业》
CAS
CSCD
北大核心
2012年第10期88-91,120,共5页
China Plastics Industry
