阻燃聚氨酯软质泡沫塑料中氯含量的测定  

Determination of Chlorine Content In Flexible Foams of Flame-retarding Polyurethane

作　　者：张亚博[1] 王兆华[1] 苏正良[1] 张鹏[2] 

机构地区：[1]四川理工学院材料与化学工程系,四川自贡643000 [2]中国民用航空总局第二研究所,四川成都610000

出　　处：《塑料科技》2008年第8期74-76,共3页Plastics Science and Technology

基　　金：国家自然科学基金资助项目(60672183)

摘　　要：叙述了阻燃聚氨酯软质泡沫塑料中氯含量的测定方法:在助燃剂存在下,氧瓶燃烧使聚氨酯软质泡沫塑料中的有机氯转化为HCl,用稀NaOH吸收,使用硫氰酸汞分光光度法测定聚氨酯软质泡沫塑料中阻燃剂的氯含量。该方法简单快捷、精确度高,回收率为99.64%～102.41%。The determination method of chlorine content in flexible foams of flame-retarding polyurethane （PU） was discussed： organic chlorine in flexible foams turned into hydrogen chloride by burning the sample with combustion adjuvant in oxygen flask, absorbed hydrogen chloride by NaOH, then the chlorine content in flexible foams of PU could be determined by mercuric thiocyanate spectrophotometric method. The determination method is easy and accurate, the recovery ratio is up to 99.64%～102.41%.

关 键 词：聚氨酯 软质泡沫塑料 阻燃剂 分光光度法 

分 类 号：TQ328[化学工程—合成树脂塑料工业]