摘要
目的考察交联剂种类及用量、引发剂用量、聚合温度对聚丙烯酸铕配合物吸水性能的影响,并探讨不同交联剂对聚丙烯酸铕(PAAEu)吸水树脂发光性能的影响。方法以环己烷和正己烷为连续相,Span-60为悬浮稳定剂,过硫酸钾为引发剂,N,N'-亚甲基双丙烯酰胺(MBA)和EuCl_3为交联剂,通过反相悬浮聚合制备聚丙烯酸铕吸水树脂。结果当交联剂、引发剂分别为单体质量的0.27%,1.3%,聚合温度为68℃时,树脂吸水倍率可达491.21;通过热重分析可知,吸水树脂的外延起始温度为333.1℃,具有较好的热稳定性;发射光谱测试表明,由MBA与EuCl_3混合交联剂制备的树脂具有较好的发光性能。结论将MBA与EuCl_3混合用作交联剂时,能得到具有较好发光和吸水性能的聚丙烯酸铕配合物吸水树脂。
The work aims to investigate the influence of the type and amount of crosslinker, initiator amount and polymerization temperature on the water-absorbability of poly（acrylic acid） europium（PAAEu） complex and study the influence of different crosslinkers on luminescence properties of PAAEu. The water-absorbent resin of PAAEu was prepared through the inverse suspension polymerization, with cyclohexane and n-hexane as the continuous phases, span60 as the suspension stabilizer, potassium persulfate as the initiator, and N,N＇-methylene bin-acrylamide（MBA） and EuCl_3 as the crosslinkers. The water absorbency of resin could reach 491.21 when the crosslinker and initiator were respectively 0.27% and 1.3% of the monomer mass, and the polymerization temperature was 68 ℃. In addition, the thermogravimetric（TG） analysis showed that, the extension starting temperature of the water absorbent resin was 333.1 ℃, indicating the good thermal stability. The resin prepared with MBA and EuCl_3 as the mixed crosslinker showed good luminescence properties through the emission spectrum test. The water-absorbent resin of PAAEu complex with better properties of luminescence and water-absorbability can be obtained when the mixture of MBA and EuCl_3 is used as the crosslinker.
出处
《包装工程》
CAS
北大核心
2017年第23期88-91,共4页
Packaging Engineering
基金
广州市教育系统创新学术团队项目(1201610020)
广州工程技术职业学院重点项目(ZSH201609)
关键词
吸水树脂
反相悬浮聚合
交联剂
water-absorbent resin
inverse suspension polymerization
crosslinker
