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首页> 外文会议>TAPPI(Technical Association of the Pulp and Paper Industry) Engineering, Pulping amp; Environmental Conference; 20061105-08; Atlanta,GA(US) >Visualization of toner ink adsorption at bubble surfaces
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Visualization of toner ink adsorption at bubble surfaces

机译：可视化墨粉在气泡表面的吸附

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摘要

Toner ink interactions with bubble surfaces were investigated in laboratory-scale flotation deinking processes using high magnification and high temporal resolution digital video. The role of calcium in sodium oleate and sodium lauryl sulfate surfactant systems was examined. Stable adsorption of large toner particles and of toner particle complexes were observed at surfaces of stationary and suspended bubbles for several system chemistries. Image analysis techniques were used for direct measurements of the effect of particle size and system chemistry on bubble surface coverage and mass of adsorbed ink per bubble. Surfactants in the presence of calcium were seen to promote toner particle agglomeration at the surfaces of stationary bubbles. The presence of calcium also appears to increase mass of adsorbed toner at bubble surfaces for both sodium oleate and sodium lauryl sulfate chemistries; for 250 to 450 μm sized particles in oleate chemistry, the mass of ink attached per bubble increased from 6 mg to 12 mg. The mass of attached toner particles was also seen to increase with particle size.
机译：在实验室规模的浮选脱墨工艺中，使用高倍率和高时间分辨率数字视频研究了墨粉与气泡表面的相互作用。检查了钙在油酸钠和十二烷基硫酸钠表面活性剂系统中的作用。在几种系统化学中，在固定气泡和悬浮气泡的表面均观察到大调色剂颗粒和调色剂颗粒复合物的稳定吸附。图像分析技术用于直接测量粒径和系统化学性质对气泡表面覆盖率和每个气泡吸附墨水质量的影响。观察到在钙存在下的表面活性剂促进了固定气泡表面上的调色剂颗粒附聚。对于油酸钠和十二烷基硫酸钠来说，钙的存在似乎还会增加气泡表面吸附碳粉的质量。对于油酸化学中的250至450μm大小的颗粒，每个气泡附着的墨水质量从6 mg增加到12 mg。还发现附着的调色剂颗粒的质量随颗粒尺寸而增加。

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