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| Application of CSPI-PEI-Bentonite Microparticle Retention and Drainage System in Deinked Pulp |
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| DOI：10.11980/j.issn.0254-508X.2016.04.003 |
| Key Words:CSPI-PEI bentonite retention and drainage |
| Fund Project:“十二五”国家科技支撑计划课题(2013BAC01B03)。 |
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| Abstract:The factors affecting the drainability and retention of deinked pulp with the application of CSPI-PEI-Bentonite microparticle system, such as bentonite dosage， shearing force, conductivity and pH value were studied in this paper. It was found that shearing strength and conductivity had a good effect on the performance of CSPI-PEI-Bentonite microparticle system. The system had good drainage and retention effect in alkali or neutral papermaking when the optimum dosage 0.4% of bentonite was used, the fines retention increased 8 persentage points while the beating degree of the furnnish decreased 6°SR compared with the application of CSPI-PEI system. Furthermore, the microparticle system could also improve the physical properties of the paper. |
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