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Anionic trash catcher

An anionic garbage and capture agent technology, which is applied in the field of papermaking additives, can solve the problems of charge density uniformity and stability, and achieve the effects of low cost, improved wet end environment, and increased retention rate

Inactive Publication Date: 2015-03-18
HAO YU ADDITION AGENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there is a good improvement in the adsorption balance of cationic garbage, there are still problems in the uniformity and stability of the charge density.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] An anionic garbage catcher, its composition and parts by weight are as follows:

[0019]

Embodiment 2

[0021] An anionic garbage catcher, its composition and parts by weight are as follows:

[0022]

Embodiment 3

[0024] An anionic garbage catcher, its composition and parts by weight are as follows:

[0025]

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PUM

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Abstract

The invention relates to an anionic trash catcher which is composed of following components, by weight, 0.4-6 parts of polyacrylamide, 0.3-6 parts of aluminum sulfate, 0.3-8 parts of polyethyleneimine, 0.1-0.8 parts of polydiallyldimethylammonium chloride and 0.4-7 parts of N-carboxymethylmethacrylamide. A high-molecular-weight high-positive-charge-density modified polyacrylamide-polyethyleneimine crosslinked copolymer novel anionic trash catcher can be employed in a situation that anionic trash accumulation and concentration is higher and higher since wet-end chemistry is quite complex due to increased closed circulating degree in paper machine white water and can reduce or eliminate interference by colloid solutes.

Description

technical field [0001] The invention relates to the technical field of papermaking auxiliary agents, in particular to an anionic garbage catcher. Background technique [0002] At present, with the change of papermaking raw materials and the shortage of raw pulp, a large number of recycled paper pulps are used, which makes the high-yield pulp of fine particles and hemicellulose and deinked waste paper pulp and a large number of applications of broken paper from paper machines, as well as the maintenance of paper machine systems. The white water is fully closed and recycled, and the accumulation of interfering anion garbage impurities in the wet part of the paper machine will increase the concentration of impurities and the concentration of white water, and the harm to the paper machine will become greater and greater, especially in the papermaking process. The additives are lost into the system, and the accumulation of anion garbage is more serious. The increase of white wat...

Claims

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Application Information

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IPC IPC(8): D21H21/06
Inventor 尹立华
Owner HAO YU ADDITION AGENT
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