STUDY OF POLYCATIONIC POLYMER DEHYDRATION DEINKING
Abstract
The paper presents the results of studies of the effect of individual polycationic polymers dehydration wastepaper.
The paper presents the entire mass range of particle sizes from a few millimeters to a few nanometers. In the fiber fraction – the structural element a paper structure, accounting for about 95–99%. The remaining 5–1% – fragmented fiber and other colloidal particles and molecular size. The stock has a negative potential, as measured by the z-potential of 15–60 mV. Therefore, between the mass of ingredients when approaching forms an electrostatic barrier to spontaneous sealing mass on the grid.
The study used polycationic polymers LLC "SKIF Special Chemicals": retainer anionic species "Ultrafiks P 127" flocculant "polyamine SSK", the resin to increase "Ultrarez DS-150" paper strength in a dry state, the resin to improve the strength of paper in the wet state "Ultrarez 200" (Russia, Dzerzhinsk) and cationic starch with a DS of 0,030 mol/mol (trademark Emprisol NE25E, prospect Island Emsland Stärke GmbH, emlichheim, Germany).
All polycationic polymers, regardless of their purpose, accelerate dehydration wastepaper. At the same time there is a directly proportional relationship, in addition to the polymer "Ultrafiks P 127". The difference in the effect on dehydration "Ultrafiks P 127" can be explained by the fact that the polymer is not a means to increase dehydration, but a means to improve the retention of fiber and other particles. It is not a low molecular weight polymer and its highest efficiency at a specific flow rate of 1,2 kg/t. Due to low molecular weight molecules adsorbed onto the surface of the highly anionic particles and fine fibers contaminants and facilitate their fixing and retention at a larger size fiber.
Cationic polymers have a high degree of polymerization, and capable of, in addition to the effect of improving retention effect flocculation provide fibers and fine particles providing acceleration of dehydration. The greater the specific consumption of the polymers in the mass, the better dewatered mass. Specific consumption of polymers in the mass of 4–10 kg/t. For polymer "Ultrarez 200" (PPE), a specific flow rate can be much higher (30-40 kg / t). The upper limits of the flow of polymers due to the fact that their objective function - this increase in mechanical strength, and within these expenses increase the strength of the greatest effect.Downloads
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Ковернинский И.Н., Комаров В.И., Третьяков С.И., Богданович Н.И., Соколов О.М., Кутакова Н.А., Селяник-на Л.И., Дьякова Е.В. Комплексная химическая переработка древесины : учебник для вузов. Архангельск, 2006. 374 с.
Блинушова О.И. Эффективное использование фракций короткого и длинного волокна из макулатуры в техно-логии тарного картона // Гофрокартон от сырья до печати : труды Междунар. науч.-практ. конф. СПб., 2008. С. 27–30.
Смолин А.С., Шабиев Р.О., Яккола П. Исследование дзета-потенциала и катионной потребности волокнистых полуфабрикатов // Химия растительного сырья. 2009. №1. С. 177–184.
Ковернинский И.Н., Дулькин Д.А., Дубовый В.К., Кожевников С.Ю. Роль ζ-потенциала в межволоконном взаимодействии // Физикохимия растительных полимеров : материалы IV Междунар. конф. Архангельск, 2011. С. 133–134.
Кожевников С.Ю., Дубовый В.К. Научные основы упрочнения бумаги при участии полимерполиионных наночастиц // Целлюлоза. Бумага. Картон. 2010. №10. С. 51–52.
Шабиев Р.О., Смолин А.С., Кожевников Ю.С., Ковернинский И.Н. Химия бумаги: исследование действия уп-рочняющих и обезвоживающих добавок // Химия растительного сырья. 2014. №4. С. 263–270.
Ковернинский И.Н., Дулькин Д.А., Кожевников С.Ю. Теоретические основы и технология придания прочности целлюлозно-бумажным материалам полиионполимерами // Проблемы механики целлюлозно-бумажных материалов : материал I Междунар. науч.-техн. конф. Архангельск, 2011. С. 52–56.
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