Zhou Yanjia, Zhang Ming, Liu Yongqiang, Xu Bo, Qiu Haiyan, Che Xiuli, Lan Guihong
Department of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, People's Republic of China.
China Railway Water Group Co., Ltd., Xi'an 710100, People's Republic of China.
R Soc Open Sci. 2023 Oct 11;10(10):230343. doi: 10.1098/rsos.230343. eCollection 2023 Oct.
To solve the problem of the low absorbency of oil-absorbing resins, oil-absorbing resins (PAMs) were fabricated in this study by introducing commercially available benzyl methacrylate (BZMA) as a functional monomer copolymerized with stearyl methacrylate (SMA) and butyl acrylate (BA). The internal network structure of the PAMs expanded more easily when absorbing oils or organic solvents after introducing rigid groups of the benzene ring by an uncomplex polymerization process, which provided the oil-absorbing resin with good absorbency. The reagents were all commercially available, and there was no other pretreatment or posttreatment process. Then, the optimum parameters for the monomer feed ratio, water/oil mass ratio, and concentrations of initiator, stabilizer and crosslinker were studied. Simultaneously, the reusability, oil retention and thermal stability of PAMs were investigated in this article. The PAMs swelled in various oils and organic solvents (the values of oil absorbency were 44.52, 56.13, 25.54, 28.21, 32.85, 24.56, 14.17, 15.02 and 29.07 g g for CCl, CHCl, CHCl, benzene, toluene, xylene, n-hexane, 0# diesel oil and 93# gasoline, respectively) and displayed good oil absorbency, which met the absorption requirements for common oils or organic solvents.
为了解决吸油树脂吸油率低的问题,本研究通过引入市售甲基丙烯酸苄酯(BZMA)作为功能单体与甲基丙烯酸十八酯(SMA)和丙烯酸丁酯(BA)共聚来制备吸油树脂(PAMs)。通过非络合聚合过程引入苯环刚性基团后,PAMs的内部网络结构在吸收油或有机溶剂时更容易扩展,这使得吸油树脂具有良好的吸油率。所用试剂均为市售,且无需其他预处理或后处理过程。然后,研究了单体进料比、水/油质量比以及引发剂、稳定剂和交联剂浓度的最佳参数。同时,本文还研究了PAMs的可重复使用性、持油性和热稳定性。PAMs在各种油和有机溶剂中均能溶胀(对四氯化碳、三氯甲烷、二氯甲烷、苯、甲苯、二甲苯、正己烷、0#柴油和93#汽油的吸油值分别为44.52、56.13、25.54、28.21、32.85、24.56、14.17、15.02和29.07 g/g),并表现出良好的吸油率,满足对普通油或有机溶剂的吸收要求。