How to Alleviate the Hysteresis of Wet Tensile Strength
The paper needs to have certain wet tensile strength in the later use and processing,and the commonly used wet strength agent is polyamide polyamine epiclorohydrin(PAE)resin.The dry tensile strength of thin sheet paper itself is low,so a large amount of PAE needs to be added to meet the use requirements of paper in the later period.The change of PAE dosage makes the curing process of paper longer,and the hysteresis of wet tensile strength of paper is more serious.The effects of curing time and curing temperature on the wet tensile strength of paper were verified by experiments.
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