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Multi-functional composite reinforcing agent for papermaking and preparation method thereof

A composite reinforcement and multi-functional technology, applied in the field of papermaking, which can solve the problems of limited effect of paper strength enhancement.

Inactive Publication Date: 2021-05-11
广州扬新科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the defects and deficiencies of the existing strengthening agent that have limited effect on paper strength enhancement, and provide a multifunctional composite strengthening agent for papermaking and its preparation method

Method used

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  • Multi-functional composite reinforcing agent for papermaking and preparation method thereof

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Effect test

Embodiment 1

[0036] A preparation method of a composite reinforcing agent for multifunctional papermaking, the specific steps are as follows:

[0037] (1) First, halloysite nanotubes and aluminum nitrate are used as raw materials to prepare doped halloysite nanotubes, and then modified by gamma-aminoethylaminopropyltrimethoxysilane to obtain modified nanomaterials, spare;

[0038] (2) Using methylolacrylamide as a raw material, prepare gel-like polymethylolacrylamide through inverse emulsion polymerization;

[0039] (3) The starch is then formulated into a starch slurry, and then the polymethylolacrylamide obtained in step (2) is added for grafting reaction to obtain a grafted starch slurry, and then 3-chloro-2-hydroxypropyl-trimethoxy Ammonium chloride is carried out etherification modification, obtains modified starch slurry;

[0040] (4) Finally, add the modified nanomaterial and coniferyl alcohol obtained in step (1) into the modified starch slurry obtained in step (3), and stir for ...

Embodiment 2

[0052] A preparation method of a composite reinforcing agent for multifunctional papermaking, the specific steps are as follows:

[0053] (1) First, halloysite nanotubes and aluminum nitrate are used as raw materials to prepare doped halloysite nanotubes, and then modified by gamma-aminoethylaminopropyltrimethoxysilane to obtain modified nanomaterials, spare;

[0054] (2) Using methylolacrylamide as a raw material, prepare gel-like polymethylolacrylamide through inverse emulsion polymerization;

[0055] (3) The starch is then formulated into starch slurry, then the polymethylolacrylamide obtained in step (2) is added, and grafted to obtain a grafted starch slurry, and then 3-chloro-2-hydroxypropyl-trimethoxy Ammonium chloride is carried out etherification modification, obtains modified starch slurry;

[0056] (4) Finally, add the modified nanomaterial and coniferyl alcohol obtained in step (1) into the modified starch slurry obtained in step (3), and stir for reaction to obt...

Embodiment 3

[0068] A preparation method of a composite reinforcing agent for multifunctional papermaking, the specific steps are as follows:

[0069] (1) First, halloysite nanotubes and aluminum nitrate are used as raw materials to prepare doped halloysite nanotubes, and then modified by gamma-aminoethylaminopropyltrimethoxysilane to obtain modified nanomaterials, spare;

[0070] (2) Using methylolacrylamide as a raw material, prepare gel-like polymethylolacrylamide through inverse emulsion polymerization;

[0071] (3) The starch is then formulated into starch slurry, then the polymethylolacrylamide obtained in step (2) is added, and grafted to obtain a grafted starch slurry, and then 3-chloro-2-hydroxypropyl-trimethoxy Ammonium chloride is carried out etherification modification, obtains modified starch slurry;

[0072] (4) Finally, add the modified nanomaterial and coniferyl alcohol obtained in step (1) into the modified starch slurry obtained in step (3), and stir for reaction to obt...

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Abstract

The invention belongs to the technical field of papermaking, and particularly relates to a multi-functional composite reinforcing agent for papermaking and a preparation method thereof. The preparation method comprises the steps of: preparing doped halloysite nanotubes from halloysite nanotubes and aluminum nitrate as raw materials, and then using gamma-aminoethyl aminopropyl trimethoxy silane for modification treatment to obtain a modified nano material; by taking hydroxymethyl acrylamide as a raw material, preparing gelatinous polyhydroxymethyl acrylamide through an inverse emulsion polymerization method; preparing starch into starch slurry, adding polyhydroxymethyl acrylamide, carrying out grafting reaction to obtain grafted starch slurry, and carrying out etherification modification by using 3-chloro-2-hydroxypropyl-trimethoxy ammonium chloride to obtain modified starch slurry; and finally, adding the modified nano material and coniferyl alcohol into the modified starch slurry, and stirring for reaction. By adding the reinforcing agent, the strength of paper can be obviously improved.

Description

technical field [0001] The invention belongs to the technical field of papermaking. More specifically, it relates to a composite reinforcing agent for multifunctional papermaking and a preparation method thereof. Background technique [0002] With the continuous development of modern human civilization, paper has gradually become an indispensable material in the fields of industry, agriculture, commerce, construction, etc., and is not completely limited to the use of cultural fields such as writing. The demand for paper is also increasing year by year. As we all know, the raw materials of paper and cardboard are mainly plant fibers, and trees contain a lot of plant fibers. Therefore, the massive felling of trees has sharply reduced the forest coverage in our country, causing animals to lose their habitats, soil desertification, and climate deterioration, which have seriously affected ecological balance. my country's pulp and paper industry has followed a "grass-based" appr...

Claims

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Application Information

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IPC IPC(8): D21H21/18
CPCD21H21/18
Inventor 杨春云
Owner 广州扬新科技有限公司
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