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The adsorption mechanism of poly‐methyl methacrylate microparticles onto paper cellulose fiber surfaces without crosslinking agents
Journal of Applied Polymer Science ( IF 3 ) Pub Date : 2020-03-31 , DOI: 10.1002/app.49269
Zuobing Xiao 1 , Jinhui Jia 1 , Yunwei Niu 1 , Guangyong Zhu 1 , Xingran Kou 1
Affiliation  

In this work, poly‐ (methyl methacrylate) microparticles were effectively adsorbed onto the paper cellulose fiber surfaces during impregnation without crosslinking agents. The adsorption behavior and mechanism of microparticles onto paper cellulose fibers were further examined by physical and chemical property characterization in combination with adsorption kinetic model. We reported that the kinetic adsorption process included three phases: rapid adsorption, saturated adsorption, and equilibrium adsorption. Intermolecular hydrogen bonds which increased gradually with the increase of the mass concentration of PMMA microparticles occurred between the carboxyl group of PMMA microparticles and the hydroxyl group of paper cellulose fibers. Due to the increase of the interaction, the crystallinity‐index of the paper cellulose decreased. Furthermore, the hydrophobic interaction also occurred between PMMA microparticles and the paper fibers, leading to preferential adsorption of the microparticles on the surfaces of the hydrophobic (2 0 0) crystal cellulose.

中文翻译:

不含交联剂的聚甲基丙烯酸甲酯微粒在纸纤维素纤维表面的吸附机理

在这项工作中,在不添加交联剂的情况下,聚甲基丙烯酸甲酯微粒在浸渍过程中被有效地吸附到了纸纤维素纤维表面上。通过理化性质表征和吸附动力学模型,进一步研究了微粒对纸纤维素纤维的吸附行为和机理。我们报道了动力学吸附过程包括三个阶段:快速吸附,饱和吸附和平衡吸附。随着PMMA微粒的质量浓度的增加,分子间氢键逐渐增加,在PMMA微粒的羧基和纸纤维素纤维的羟基之间发生。由于相互作用的增加,纸质纤维素的结晶度指数降低。此外,
更新日期:2020-03-31
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