摘要
采用原子转移自由基聚合(ATRP)法合成低相对分子质量、相对分子质量分布较窄的聚苯乙烯(PS),以PS、Br2为原料,AlCl3作催化剂,CH2Cl2为溶剂,低温反应5～6h合成低相对分子质量溴化聚苯乙烯(BPS),用于对PA6进行阻燃。考察了反应条件对聚合过程及产物性能的影响,并研究了阻燃PA6的流变性能、力学性能、阻燃性能。结果表明,随着阻燃剂含量的增加,PA6的阻燃性能和流变性能均有较大提高,力学性能下降较少,当在PA6中添加质量分数为19%的BPS和Sb2O3复合阻燃剂时,阻燃PA6能够达到UL94V-0级,满足家用电器的阻燃法规,而且此时体系的综合性能也较好。
The low relative molecular weight and narrow molecular weight distribution polystyrene was synthesied by ATRP （ Atom Tansfer Radical Polymerization）. With polystyrene （PS） and bromine as raw materials, AlCl3 as catalyst, CH2Cl2 as solvent, the brominated polystyrene（BPS） flame retardant was synthesized. The effect of reaction condition on polymerization process and prop- erties of the product was examined. The testing results of the fire retardancy, mechanical and rheological properties of nylon 6 composite with different brominated polystyrene content indicated that the fire retardancy and rheological properties of the composite increased with the amount of brominated polystyrene, the mechanical properties decreased little. When the BPS and Sb203 content was 19% ,fireretardant nylon 6 could achieved UL 94 V - 0 grade （ standard）, which could meet the need of FR standard of our country, and the comprehensive properties of the composite were satisfactory.
出处
《工程塑料应用》
CAS
CSCD
北大核心
2008年第2期12-15,共4页
Engineering Plastics Application
关键词
溴化聚苯乙烯
尼龙6
阻燃剂
brominated polystyrene, nylon 6, flame retardant
