Encapsulation of alkenylsuccinic anhydride oil droplets in Laponite nanoparticles modified by carbon nitride quantum dots: Enhancement of emulsion stability and paper sizing performance

被引:9
|
作者
Yu, Dehai [1 ]
Li, Guodong [1 ,2 ]
Kong, Fangong [1 ]
Wang, Huili [1 ]
Liu, Wenxia [1 ]
Song, Zhaoping [1 ]
Meng, Xia [1 ]
Zhao, Joe R. H. [1 ]
机构
[1] Qilu Univ Technol, State Key Lab Biobased Mat & Green Papermaking, Shandong Acad Sci, Key Lab Pulp & Paper Sci & Technol,Educ Minist Ch, Jinan 250353, Shandong, Peoples R China
[2] Tianjin Univ Sci & Technol, Tianjin Key Lab Pulp & Paper, Tianjin 300457, Peoples R China
基金
中国国家自然科学基金;
关键词
Laponite; Nanoparticle; Alkenylsuccinic anhydride; Paper sizing; Pickering emulsion; Stabilization; IN-WATER EMULSIONS; PICKERING EMULSIONS; CELLULOSE FIBERS; PHASE INVERSION; ASA; PARTICLES;
D O I
10.1016/j.clay.2020.105608
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Alkenylsuccinic Anhydride (ASA) is commonly applied as oil-in-water emulsions in papermaking industry. Herein, a particle stabilized ASA emulsion was developed for avoiding the adverse effect of surfactant, further improving the sizing performance and reducing the hydrolysis of ASA Pickering emulsions, where Laponite nanoparticles were employed as a stabilizer of the ASA Pickering emulsions after being modified with carbon nitride quantum dots. It was found that the hydrophilic Laponite particles became partially hydrophobic after being modified with CNQDs in dosage of 20-40 wt%, and thus promoted the formation of emulsions with fine and uniform droplets that resisted creaming/coalescence formation. The adsorption of the Laponite/CNQDs particles on the ASA droplet surface improved the emulsion stability, which was verified by fluorescent confocal laser scanning microscopy. Meanwhile, by using Laponite/CNQDs nanoparticles, the storage stability of ASA Pickering emulsion and its sizing performance on paper was also improved.
引用
收藏
页数:9
相关论文
共 2 条
  • [1] Improving Stability and Sizing Performance of Alkenylsuccinic Anhydride (ASA) Emulsion by Using Melamine-Modified Laponite Particles as Emulsion Stabilizer
    Zhang, Wei
    Liu, Wenxia
    Li, Haidong
    Hubbe, Martin A.
    Yu, Dehai
    Li, Guodong
    Wang, Huili
    [J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2014, 53 (31) : 12330 - 12338
  • [2] A fluorescent pickering-emulsion stabilizer prepared using carbon nitride quantum dots and laponite nanoparticles
    Yu, Dehai
    Li, Guodong
    Liu, Wenxia
    Li, Youming
    Song, Zhaoping
    Wang, Huili
    Guan, Feixiang
    Chen, Xueshuai
    [J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2019, 563 : 310 - 317