Journal of Guangxi Normal University(Natural Science Edition) ›› 2019, Vol. 37 ›› Issue (3): 120-131.doi: 10.16088/j.issn.1001-6600.2019.03.014

Previous Articles     Next Articles

Polymethyl Methacrylate Modified Nano-Silica and Its Stabilizing Effect on Pickering Emulsion

WU Juan1, ZHU Hongyang1, MEI Ping1,2*, CHEN Wu1,2, LI Zhongbao1   

  1. 1.College of Chemical and Environmental Engineering, Yangtze University, Jingzhou Hubei 434023, China;
    2.Hubei Cooperative Innovation Center of Unconventional Oil and Gas Yangtze University , Wuhan Hubei 434100, China
  • Online:2019-07-12 Published:2019-07-12

PDF (PC)

18

Abstract: The γ-methacryloxypropyl-trimethoxysilane (MPS) was used to modify hydrophilic nano-silica to obtain MPS-SiO2 nanoparticles, and the PMMA-SiO2 nanoparticles were prepared by further modification of MPS-SiO2 nanoparticles with methyl methacrylate (MMA). Results of FTIR spectra and contact angle measurement show that the surfaces of hydrophilic nano-silica are successfully grafted with MPS and MMA. In addition, Pickering emulsions were prepared based on hydrophilic nano-silica, MPS-SiO2, PMMA-SiO2 and hydrophobic nano-silica, respectively. The effects of the volume ratio of oil to water, the concentration of nano-silica, pH value of aqueous solution and the concentration of NaCl on the stability of Pickering emulsions were investigated. The volume fractions of residual emulsions, of which were placed for 24h and prepared with a mass fraction of 1% of hydrophilic nano-SiO2, MPS-SiO2 and PMMA-SiO2, are 48%, 80% and 76%, respectively. The results indicate that the emulsifying performance of MPS-SiO2 and PMMA-SiO2 are better than that of hydrophilic nano-SiO2. The optimum volume ratio of oil to water for Pickering emulsions prepared by hydrophilic nano-silica, MPS-SiO2 and PMMA-SiO2 are all 1∶1, while for hydrophobic nano-silica, that is 1∶2. Moreover, the emulsification properties of four kinds of nano-silica particles enhance with the increase of their concentrations. Compared with the other three nanoparticles, the stability of Pickering emulsion prepared by PMMA-SiO2 is less affected by pH and the concentration of NaCl.

Key words: nano-silica, PMMA modification, Pickering emulsions, emulsion stability

CLC Number: 

  • O632.5
[1] 周君, 乔秀颖, 孙康. Pickering乳液的制备和应用研究进展[J]. 化学通报, 2012, 75(2):99-105.
[2] PICKERING S U. Pickering: emulsions[J]. Journal of the Chemical Society Transactions, 1907, 91(23): 2001-2021.
[3] 陈博, 陈学琴, 任军,等. 纳米二氧化硅表面改性研究进展[J]. 有机硅材料, 2017, 31(5):396-400.
[4] 公绪强, 王雅祺, 张利. 改性纳米二氧化硅增强增韧聚对苯二甲酸丁二醇酯[J]. 材料导报, 2016, 30(4):52-56.
[5] YIN J, DENG T, ZHANG G. Preparation and size control of highly monodisperse vinyl functionalized silica spheres[J]. Applied Surface Science, 2012, 258(6):1910-1914.
[6] ABDOLLAHI M , ROUHANI M , SALARIZADEH P , et al. Using fumed silica nanoparticles modified with hydrophilic sulfonated polymers in the proton exchange nanocomposite membranes[J]. Polymer Science, 2015, 57(5):1-8.
[7] GAO X , CHEN K , LIANG S , et al. Effects of raw and poly(propylene oxide) grafted nanosilica on the morphology and thermal and mechanical properties of polyurethane foam[J]. Journal of Applied Polymer Science, 2015, 132(32):42400-42410.
[8] ZHENG J, ZHU R, HE Z, et al. Synthesis and characterization of PMMA/SiO2 nanocomposites by in situ suspension polymerization[J]. Journal of Applied Polymer Science, 2010, 115(4):1975-1981.
[9] ZHANG Q, HUANG W, ZHONG G. Towards transparent PMMA/SiO2 nanocomposites with promising scratch-resistance by manipulation of SiO2 aggregation followed by in situ polymerization[J]. Journal of Applied Polymer Science, 2016, 134(12):44612-44621.
[10]MCCOSH K, KAPILA M, DIXIT R, et al. Continuous improvement inslop-mud treatment technology[J]. SPE Drilling & Completion, 2009, 24(3):418-423.
[11]AGARWAL S, PHUOC T X, SOONG Y, et al. Nanoparticle-stabilized invert emulsion drilling fluids for deep-hole drilling of oil and gas[J]. The Canadian Journal of Chemical Engineering, 2013(10):1641-1649.
[12]QI D M, BAO Y Z, HUANG Z M, et al. Anchoring of polyacrylate onto silica and formation of polyacrylate/silica nanocomposite particles via in situ emulsion polymerization[J]. Colloid and Polymer Science, 2008, 286(2):233-241.
[13]SUGIMOTO H, DAIMATSU K, NAKANISHI E, et al. Preparation and properties of poly (methylmethacrylate)-silica hybrid materials incorporating reactive silica nanoparticles[J]. Polymer, 2006, 47(11): 3754-3759.
[14]ZHANG K, ZHENG L, ZHANG X, et al. Silica-PMMA core-shell and hollow nanospheres[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2006, 277(1): 145-150.
[15]魏铭, 余新光, 刘晓芳,等. 分散聚合法制备PMMA/SiO2核壳型杂化微球[J]. 武汉理工大学学报, 2010(10):29-32.
[16]ZHOU J, WANG L, QIAO X, et al. Pickering emulsions stabilized by surface-modified Fe3O4 nanoparticles[J]. Journal of Colloid and Interface Science, 2012, 367(1): 213-224.
[17]YAN N, GRAY M R, MASLIYAH J H. On water-in-oil emulsions stabilized by fine solids[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2001, 193(1): 97-107.
[18]STILLER S, GERS-BARLAG H, LERGENMUELLER M, et al. Investigation of the stability in emulsions stabilized with different surface modified titanium dioxides[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2004, 232(2): 261-267.
[19]BINKS B P, LUMSDON S O. Effects of oil type and aqueous phase composition on oil-water mixtures containing particles of intermediate hydrophobicity[J]. Physical Chemistry Chemical Physics, 2000, 2(13): 2959-2967.
[20]YAN N, MASLIYAH J H. Effect of pH on adsorption and desorption of clay particles at oil-water interface[J]. Journal of Colloid and Interface Science, 1996, 181(1): 20-27.
[21]YANG F, NIU Q, LAN Q, et al. Effect of dispersion pH on the formation and stability of Pickering emulsions stabilized by layered double hydroxides particles[J]. Journal of Colloid and Interface Science, 2007, 306(2): 285-295.
[22]BRIGGS T R. Emulsions with finely divided solids[J]. Industrial and Engineering Chemistry, 1921, 13(11): 1008-1010.
[23]BINKS B P, LUMSDON S O. Stability of oil-in-water emulsions stabilised by silica particles[J]. Physical Chemistry Chemical Physics, 1999, 1(12): 3007-3016.
[24]YANG F, LIU S, XU J, et al. Pickering emulsions stabilized solely by layered double hydroxides particles: The effect of salt on emulsion formation and stability[J]. Journal of Colloid and Interface Science, 2006, 302(1): 159-169.
[1] WEI Xiaoqian, LIU Huarong, LAI Lu. Synthesis and Properties of Pickering Emulsions Stabilized by Modified Nano-silica with Multiple Quaternary Ammoniums [J]. Journal of Guangxi Normal University(Natural Science Edition), 2018, 36(2): 69-77.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] MENG Chunmei, LU Shiyin, LIANG Yonghong, MO Xiaomin, LI Weidong, HUANG Yuanjie, CHENG Xiaojing, SU Zhiheng, ZHENG Hua. Electron Microscopy Study on the Apoptosis and Autophagy of the Hepatic Stellate Cells Induced by Total Alkaloids[J]. Journal of Guangxi Normal University(Natural Science Edition), 2018, 36(3): 76 -79 .
[2] WEI Hongjin, ZHOU Xile, JIN Dongmei, YAN Yuehong. Additions to the Pteridophyte Flora of Hunan, China[J]. Journal of Guangxi Normal University(Natural Science Edition), 2018, 36(3): 101 -106 .
[3] BAO Jinping, ZHENG Lianbin, YU Keli, SONG Xue, TIAN Jinyuan, DONG Wenjing. Skinfold Thickness Characteristics of Yi Adults in Daliangshan,China[J]. Journal of Guangxi Normal University(Natural Science Edition), 2018, 36(3): 107 -112 .
[4] LIN Yongsheng, PEI Jianguo, ZOU Shengzhang, DU Yuchao, LU Li. Red Bed Karst and Its Hydrochemical Characteristics of Groundwater in the Downstream of Qingjiang River, China[J]. Journal of Guangxi Normal University(Natural Science Edition), 2018, 36(3): 113 -120 .
[5] LI Xianjiang, SHI Shuqin, CAI Weimin, CAO Yuqing. Simulation of Land Use Change in Tianjin Binhai New Area Based on CA-Markov Model[J]. Journal of Guangxi Normal University(Natural Science Edition), 2018, 36(3): 133 -143 .
[6] TENG Zhijun, LÜ Jinling, GUO Liwen, XU Yuanyuan. Coverage Strategy of Wireless Sensor Network Based on Improved Particle Swarm Optimization Algorithm[J]. Journal of Guangxi Normal University(Natural Science Edition), 2018, 36(3): 9 -16 .
[7] LIU Ming, ZHANG Shuangquan, HE Yude. Classification Study of Differential Telecom Users Based on SOM Neural Network[J]. Journal of Guangxi Normal University(Natural Science Edition), 2018, 36(3): 17 -24 .
Copyright © Journal of Guangxi Normal University(Natural Science Edition), All Rights Reserved.
Tel: 0773-5857325　E-mail: gxsdzkb@mailbox.gxnu.edu.cn
Powered by Beijing Magtech Co. Ltd