APPLICATION OF CHEMICAL ADDITIVES FOR RESOURCE CONSERVATION PRODUCTION OF PAPER AND CARDBOARD
Abstract
The aim of the study is to evaluate the interaction of amphoteric polymer resins with cellulose fibers at the molecular level.
The interaction of amphoteric polymer resins with cellulose fragments was determined by standard 1H NMR and 13C spectroscopy techniques.
To study the interaction of amphoteric polymeric resins with cellulose at the molecular level, imitation modeling has been carried out in the work. The essence of the simulation is the replacement of cellulose fibers with substances that are close to the functional purpose of cellulose. Such substances include glucose, sucrose, starch and ethylene glycol, which dissolve in water. It is established that in the presence of a large amount of water in the APS – waste paper system, intermolecular and interfluid hydrogen bonds are formed, and upon reaching a critical amount of water in the system, new covalent ether-type bonds are formed between the functional groups of the components as model systems and amphoteric polymeric systems resin - cellulose and this indicates the possibility of increasing the physical and mechanical properties of paper and paperboard from secondary raw materials.
The results show that simulation simulation of structural and functional transformations in complex systems, including the cellulose-APS system, confirms the presence in them of processes that occur during the interaction of amphoteric polymeric resins with hydroxyl groups of cellulose fibers
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