Fluorescent alkenyl butanedioic anhydride sizing emulsion and preparation method thereof

Abstract

The invention relates to a fluorescent alkenyl butanedioic anhydride sizing emulsion and a preparation method thereof, and belongs to the technical field of emulsification of papermaking sizing agents. According to the invention, the alkenyl butanedioic anhydride sizing emulsion which can serve as a fluorescent papermaking sizing agent and can be used for effectively improving the water resistance of paper is successfully prepared by jointly adding carbon quantum dots and bentonite into an alkenyl butanedioic anhydride sizing agent for the first time. A novel emulsion stabilizer is provided for the alkenyl butanedioic anhydride sizing agent. The emulsion stabilizer ensures that the sizing agent have the fluorescent performance. In addition, carbon quantum dots and bentonite as the emulsifier have the advantages of less use level, no toxicity, low cost and the like. The fluorescent alkenyl butanedioic anhydride sizing emulsion provided by the invention is simple in preparation process, and no surfactants, macromolecular polyelectrolytes and dyeing type fluorescent agents need to be added.

Description

technical field [0001] The invention relates to a fluorescent alkenyl succinic anhydride sizing emulsion and a preparation method thereof, belonging to the technical field of papermaking sizing agent emulsification. Background technique [0002] The transformation of the papermaking industry from acidic papermaking system to medium and alkaline papermaking is an innovative change in the papermaking process in the 20th century. This can not only improve the quality of paper and expand the range of fillers, but also reduce pulp consumption, reduce energy consumption, and reduce environmental pollution. Extend the life of equipment. At present, the paper-making sizing agents are mainly based on alkyl ketene dimer (AKD) and alkenyl succinic anhydride (ASA), and large and medium-sized paper mills gradually adopt ASA. Especially in recent years, due to its high reactivity, low cost of sizing material, and fast aging rate, ASA has been widely used in internal sizing of high-grade...

AI Technical Summary

Problems solved by technology

Carbon quantum dots are composed of non-toxic elements. Compared with other materials in vivo bioanalysis or green chemistry, this advantage is very obvious. So far, no carbon quantum dots have been found to have obvious toxicity to biomass cells or mice. ; There is no report about the use of carbon quantum dots for emulsifying and stabilizing ASA paper sizing agents