摘要
以甲基丙烯酸丁酯(BMA)、甲基丙烯酸甲酯(MMA)和苯乙烯(St)为单体,二乙烯苯为交联剂,失水山梨醇油酸酯(Span80)为乳化剂,偶氮二异庚腈(ABVN)为引发剂,通过反相高内相乳液法制备大孔超疏水聚(甲基丙烯酸丁酯-甲基丙烯酸甲酯-苯乙烯)吸油材料。采用傅里叶变换红外光谱仪、光学显微镜和接触角测量仪对大孔超疏水吸油材料的结构、形貌和疏水性能进行表征,考察了单体配比和吸油时间对大孔超疏水吸油材料吸油率的影响,评价了材料的油水分离能力。结果表明,以m(BMA)∶m(MMA)∶m(St)=7∶1∶2制备的大孔超疏水材料吸油保油性能最佳,对二氯甲烷的吸附量高达45.901g/g,离心保油率达到97.18%。此外,该材料具有超疏水和亲油性,水接触角可达到155°,15s内可完全吸附水中的甲苯,在油水分离中具有潜在应用价值。
Macroporous and super-hydrophobic oil absorbing materials(P(BMA-co-MMA-co-St)) was synthesized by high internal phase emulsion method using butyl methacrylate(BMA),methyl methacrylate(MMA) and styrene(St) as monomers, divinylbenzene(DVB) as crosslinking agent, Span 80 as emulsifier, and 2,2′-azobis(2,4-dimethyl) valeronitrile(ABVN) as initiator.First, the pore structure and hydrophobic properties of the macroporous materials were characterized by FT-IR,optical microscopy and contact angle test, respectively.Second, the effects of monomer ratio and oil absorption time on oil absorption rate of the macroporous materials were investigated.Lastly, the oil-water separation performance of porous resin was evaluated.The results showed that P(BMA-co-MMA-co-St) macroporous material displayed the optimal oil absorption and retention performance when the mass ratio of BMA,MMA and St was 7∶1∶2,and the maximum adsorption capacity of the macroporous materials towards dichloromethane was as high as 45.901 g/g with the oil retention rate reaching above 97.18%.In addition, the macroporous material exhibited super-hydrophobicity and lipophilicity with the water contact angle(WCA) of 155° and was able to completely absorb toluene in water within 15 s;therefore, it was expected to be applied in oil-water separation treatment.
作者
朱媛媛
朱亮翔
吴明元
吴庆云
杨建军
刘久逸
张建安
Zhu Yuanyuan;Zhu Liangxiang;Wu Mingyuan;Wu Qingyun;Yang Jianjun;Liu Jiuyi;Zhang Jian'an(School of Chemistry and Chemical Engineering,Anhui University,Hefei 230601;Institute of Physical Science and Information Technology,Anhui University,Hefei 230601;Engineering Laboratory of High Performance Waterborne Polymer Materials of Anhui Province,Hefei 230601)
出处
《化工新型材料》
CAS
CSCD
北大核心
2022年第12期283-287,共5页
New Chemical Materials
基金
国家自然科学基金(51973001)
安徽省高等学校自然科学研究重大项目(KJ2019ZD01)
安徽省留学人员创新项目择优资助计划重点项目(2019LCX006)。
关键词
高内相乳液法
丙烯酸酯
大孔结构
超疏水
油水分离
high internal phase emulsion method
acrylate
macroporous structure
super-hydrophobic
oil-water separation
