Macromolecular papermaking dry strength agent

Abstract

The invention relates to a macromolecular papermaking dry strength agent. The macromolecular papermaking dry strength agent is prepared from the following raw materials in percentage by weight: 2% of starch, 20-28% of an etherifying agent, 25% of a cationic monomer, 10% of acrylamide, 10% of acrylic acid, 16% of acrylic ester, 2% of an initiating agent, 5% of an oxidizing agent and the balance of a pH regulator, wherein the starch is potato starch; the etherifying agent is trichlorodihydroxypropyl trimethyl ammonium chloride; the cationic monomer is dimethyl diallyl ammonium chloride; the oxidizing agent is sodium persulphate; and the pH regulator is hydraulic acid. The macromolecular papermaking dry strength agent is easy to use, stable in performance, low in cost and high in ring crush compression strength and bursting strength, is applicable to addition of a wet part during papermaking and surface sizing and can be used for obviously giving dry strength and tearing strength to a piece of paper and obviously improving the ring crush compression strength of the paper and drainability of slurry.

Description

technical field [0001] The invention relates to the field of papermaking auxiliary agents, in particular to a polymer papermaking dry strength agent. Background technique [0002] Among the currently used dry strength agents, starch-based dry strength agents almost occupy most of the market share. However, starch is used as a dry strength agent. From the perspective of its use process, it needs to be gelatinized and then diluted with steam. The paper folding resistance, ring crush strength and burst strength of the prepared dry strength agent are relatively poor. How to solve many defects existing in the existing dry strength agent finished product has been an urgent problem to be solved in the paper industry. [0003] In order to overcome the problems existing in the dry strength agent in the prior art, a papermaking dry strength agent for polymer papermaking is provided, which is easy to use, stable in performance, low in cost, high in ring crush strength and burst streng...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of poor folding endurance, ring crush strength and bursting strength of paper made by existing dry strength agents, and to provide a polymer paper dry strength agent