摘要
选择长链的丙烯酸十八酯单体,以高能电子束辐照引发单体在聚丙烯（PP）纤维表面的接枝反应,制备出功能化的聚丙烯纤维,并以该纤维作为固相萃取填料（SPE）用于萃取富集水中的苯酚;通过静态吸附实验考察功能化纤维的接枝率及溶液pH值对纤维吸附性能的影响,SPE过程研究了上样速度、洗脱剂用量对富集效果的影响.结果表明：当上样速度为10 mL/min、3 mL无水乙醇为洗脱剂时,纤维固相萃取柱对苯酚的富集倍数为30倍,苯酚的回收率在75%~90%之间,说明该纤维填料可用于富集萃取水中的微量苯酚.
The surface of polypropylene（PP） fiber is grafted polymerization with octadecyl acrylate（SA） initiated by high energy electron beam.The fiber as filler of solid phase extraction（SPE） is used for enrichment and extraction of phenol in water.The influence of grafting degree and pH value on the adsorption effect of functional fiber is studied through static adsorption experiments.The injection speed and the eluent volume process are researched to obtain the optimized parameter in SPE process.The result shows that,when the phenol solution passes the fiber column with a speed of 10 mL/min and with 3 mL anhydrous alcohol for eluent,the enrichment capacity of PP fiber for phenol is up to 30 times,following a excellent recovery ratio at 75%-90%.The results indicate that the PP grafted fiber as solid extractant could successfully be used to enrichment extraction of trace phenol in water.
出处
《天津工业大学学报》
CAS
北大核心
2012年第4期14-16,共3页
Journal of Tiangong University
基金
天津市科技创新专项资金项目(10FDZDSW01500)
关键词
聚丙烯纤维
辐照接枝
丙烯酸十八酯
固相萃取
苯酚
polypropylene fiber
radiation induced grafting
stearyl acrylate
solid-phase extraction
phenol
