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| Study on the Adsorption Behavior of Water-based Ink Particles onto Different Kinds of Pulp Fibers |
| Received:August 16, 2019 |
| DOI：10.11980/j.issn.0254-508X.2019.12.002 |
| Key Words:water-based ink particle different fiber fractions adsorption adsorption kinetics adsorption thermodynamics |
| Fund Project:国家自然科学基金面上项目
31670588
国家自然科学基金面上项目（31670588）。 |
| Author Name | Affiliation | Postcode | | FENG Jie | Tianjin Key Lab of Pulp &
Paper, Tianjin University of Science &
Technology, Tianjin, 300457 | 300457 | | SHI Chuanfei | Tianjin Key Lab of Pulp &
Paper, Tianjin University of Science &
Technology, Tianjin, 300457 | 300457 | | SUN Yu | He’nan Cigarette Industry Tobacco Flake Co. , Ltd. , Xuchang, He’nan Province, 461100 | 461100 | | LUO Chong | He’nan Cigarette Industry Tobacco Flake Co. , Ltd. , Xuchang, He’nan Province, 461100 | 461100 | | ZHANG Wenhui | Tianjin Key Lab of Pulp &
Paper, Tianjin University of Science &
Technology, Tianjin, 300457 | 300457 | | ZHANG Hongjie | Tianjin Key Lab of Pulp &
Paper, Tianjin University of Science &
Technology, Tianjin, 300457
China National Pulp and Paper Research Institute Co. , Ltd. , Beijing, 100102 | 100102 |
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| Abstract:In order to improve the quality of wastepaper pulp and to enhance the utilization efficiency of secondary fibers, the adsorption kinetics and thermodynamics models were used in this study to analyze the adsorption behavior of water-based ink particles onto different kinds of fibers and different fiber fractions. The results showed that the quasi-second-order adsorption kinetic model was suitable for describing the adsorption process of water-based ink particles. For different fractions of SBKP fiber, water-based ink particles had the largest adsorption capacity onto the P50/R100 fraction, the adsorption capacity of the ink particle onto the R30 fiber fraction was 1 mg/g lower, its adsorption rate at the initial stage was 2 times faster than that onto the R30 fiber fraction. The adsorption capacity of TMP fiber was smaller than that of SBKP fiber, and the maximum adsorption capacity of the former was 0.8 mg/g lower than that of the later. In addition, the adsorption process of water-based ink particles on pulp fibers followed the Freundlich isotherm adsorption, and this process was a spontaneous and exothermic process. Water-based ink adsorbed on R30 fraction of SBKP had the largest adsorption enthalpy change, and on the P50/R100 fiber fraction had the largest adsorption entropy change. |
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