A kind of strengthening agent for papermaking and preparation method thereof

Abstract

The invention discloses a reinforcing agent for papermaking and a preparation method thereof, which belongs to the field of papermaking. The strengthening agent for papermaking is made of the following components by weight: 20-30 parts of cationic polyacrylamide, 15-20 parts of hydroxypropyl methylcellulose, 20-30 parts of coniferyl alcohol, polyethylene glycol 15-20 parts, 10-20 parts of glyceryl stearate, 10-20 parts of starch, 5-8 parts of aluminum sulfate and 1-2 parts of sodium bicarbonate. The strengthening agent prepared by the method can be used in the field of papermaking, and the paper prepared by adding the strengthening agent has good strength and certain water resistance, and meanwhile, the preparation method of the invention is simple and can be produced repeatedly.

Description

technical field

[0001] The invention belongs to the field of papermaking, in particular to a reinforcing agent for papermaking and a preparation method thereof. Background technique

[0002] The dry strength of paper is mainly related to the arrangement of fibers and the bonding between fibers. The main determinants of the strength of paper are determined by factors such as the strength of individual fibers and the number and size of bonds between fibers. On the one hand, the strength of the fiber network can be determined by the accuracy of mechanical beating, but at the same time, it can also increase the bonding strength between fibers by changing the composition of the papermaking slurry. The method often used is to increase the long fiber in the slurry. Ratio, reduce filler content, etc.

[0003] At present, the widely used wet strength agent with better effect is polyamide polyamine epichlorohydrin resin, but this kind of raw material has not been cross-linked, and i...

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