Mapping Analysis of Paper Surface for Developing High Performance Paper Strength Agent, 19PaperCon
With recent changes of papermaking conditions such as increasing of used paper’s recycling rate and restriction of fresh water consumption, higher performance paper chemicals are required. In this presentation, we will explain our approach to supportive environmental adaptive system by amphoteric Polyacrylamide (aPAM) based dry strength agents. It is well known that aPAM aqueous solution forms Polyion complex (PIC), which is caused by electrostatic Interaction between positive and negative charged moieties under certain condition. Using an advanced Scanning Probe Microscope method (SPM), clear image of PIC which retained on the pulp fiber in aqueous solution could be achieved. The relationship between PIC size and paper dry-strength was also confirmed for corresponding hand-sheet. By applying these results, we have developed high performance dry-strength agent based on aPAM suitable for high electric conductivity (EC) of wet-end.
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Mapping Analysis of Paper Surface for Developing High Performance Paper Strength Agent, 19PaperCon