聚氨酯过滤绵负载型有机溶剂吸收剂的制备及性能研究  

Preparation and performance of PU filter sponge-loaded absorbent for organic solvent

作　　者：别云霞 陈秋月 张卫英 李晓 Bie Yunxia;Chen Qiuyue;Zhang Weiying;Li Xiao(College of Chemical Engineering,Fuzhou University,Fuzhou 350108;Fujian Engineering Research Center for Advanced Manufacturing Technology of Special Chemicals,Fuzhou 350108)

机构地区：[1]福州大学石油化工学院,福州350108 [2]福建省专用化学品先进制造工程研究中心,福州350108

出　　处：《化工新型材料》2021年第9期102-106,共5页New Chemical Materials

基　　金：福建省自然科学基金项目(2015J01197);福州市市校科技合作项目(2018-G-67);福州大学贵重仪器设备开放测试基金项目(2020T026)。

摘　　要：对聚氨酯大孔过滤绵(PU滤绵)进行氢氧化钠预处理后,通过浸没负载乳液型丙烯酸吸油树脂制得负载型有机溶剂吸收剂(RS吸收剂)。研究了氢氧化钠的预处理条件,测定了RS吸收剂对挥发性有机溶剂的吸收能力,研究了RS吸收剂对醋酸丁酯的吸收动力学,并考察了RS吸收剂对水溶液中低浓度醋酸丁酯的去除效果。结果表明:PU滤绵在50℃下预处理100min负载率可达到1.6g/g,RS吸收剂对醋酸丁酯的吸收倍率为5.8g/g,对四氯化碳的吸收倍率超过20g/g,对醋酸丁酯的吸收过程符合准一级动力学模型,45℃下对6g/L醋酸丁酯水溶液的去除率接近60%。After pretreatment of polyurethane macroporous filter sponge(PU sponge)with sodium hydroxide,a loaded organic solvent absorbent(RS absorbent)was prepared by immersing the pretreated sponge in an acrylic emulsion of oil absorbent resin.The pretreatment conditions were studied.The absorbency of RS absorbent to organic solvents was determined.The absorption kinetics of RS absorbent to butyl acetate was studied.The removal effect of RS absorbent to butyl acetate with low concentration in aqueous solution was investigated.The results showed that the loading rate reached 1.6 g/g with PU filter sponge pretreated for 100 min at 50℃.The absorption capacity of RS absorbent to butyl acetate was 5.8 g/g,and the absorption capacity to carbon tetrachloride was more than 20 g/g.The absorption process of butyl acetate was following the quasi-first-order kinetic model.The removal rate of butyl acetate in 6 g/L aqueous solution was close to 60%at 45℃.

关 键 词：聚氨酯过滤绵 吸油树脂 有机溶剂 吸收剂 醋酸丁酯 

分 类 号：TB34[一般工业技术—材料科学与工程] TQ32[化学工程—合成树脂塑料工业]