Control agent for pitch for pitch trouble in use for paper making and preparation method

A control agent and barrier technology, applied in papermaking, textiles and papermaking, paper, etc., can solve the problems of no charge or weak electricity, resin deposition, etc., to prevent accumulation and deposition, and improve lipophilicity.

Inactive Publication Date: 2005-03-30
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, once the large aggregates formed by resin aggregation cannot be fixed to the fibers, it may cause resin deposition. Moreover, a considerable part of the resin is uncharged or has very weak electrical properties. The resin control agent that only relies on electrical neutralization must have its limitations

Method used

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  • Control agent for pitch for pitch trouble in use for paper making and preparation method

Examples

Experimental program
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Effect test

example 1

[0032] Example 1: Preparation of polyamide polyamine

[0033] Polyamide polyamine A: After mixing 103.17 parts of diethylenetriamine and 11.5 parts of 12.7% hydrochloric acid, slowly add 146.15 parts of adipic acid, then raise the temperature of the mixture to 146-148 ° C, and react for 5 hours , the condensation water is removed by distillation. After the product was cooled, it was dried at low temperature to obtain polyamide polyamine A in the form of light yellow resin.

[0034] Polyamide polyamine B: Repeat the preparation process of polyamide polyamine A, but adjust the reaction time to 15 hours. After the product was cooled, it was dried at low temperature to obtain a pale yellow resinous polyamide polyamine B.

[0035] Polyamide polyamine C: repeat the preparation process of polyamide polyamine A, but replace 103.17 parts of diethylene triamine with 146.19 parts of triethylene tetramine, and control the reaction temperature between 158-160 °C , The reaction time is 2...

example 2

[0036] Example 2: Preparation of polyamide polyamine and inorganic bentonite composite

[0037] 1. Aqueous solution method

[0038] Compound A1 of polyamide polyamine A and sodium-calcium-based bentonite: gradually add 6 parts of bentonite (bentonite layer spacing 13.76 Å) to 47 parts of 0.1N hydrochloric acid containing 1 part of polyamide polyamine A under stirring In an aqueous solution, stir and react at room temperature for 12 hours, centrifuge and discard the supernatant. After drying, it is ground into powder to obtain composite A1 of polyamide polyamine A and sodium calcium bentonite.

[0039] Compound B1 of polyamide polyamine B and sodium-calcium-based bentonite: 6 parts of sodium-calcium bentonite (distance between layers of bentonite 13.14 Å) was gradually added to 190 parts of calcium-based bentonite containing 4 parts of polyamide polyamine B under stirring. hydrochloric acid aqueous solution, and the temperature was raised to 80 ° C, continued to stir and reac...

example 3

[0045] Example 3: Preparation of polyamide polyamine and organic bentonite composite

[0046] 1. Preparation of organobentonite

[0047] 1,12-diaminododecane as a swelling agent: dissolve 5 parts of 1,12-diaminododecane in 5000 parts of 0.01M HCl and filter to remove undissolved impurities, and then stir Slowly add 50 parts of sodium calcium-based bentonite (bentonite interlayer distance 13.14 Å) powder into the solution, heat up to 60°C, continue stirring and reacting for 3 hours, then centrifuge and discard the supernatant. The sample was washed with deionized water until the eluate was filled with AgNO 3 Cl cannot be detected - Until then, dry the washed sample at low temperature. The dried sample is ground into powder, which is 1,12-diaminododecane modified bentonite.

[0048] Use p-phenylenediamine as a swelling agent: dissolve 5.4 parts of p-phenylenediamine in 5000 parts of 0.01M HCl and filter to remove undissolved impurities, then slowly add 50 parts of sodium bas...

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PUM

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Abstract

A trouble controlling agent of papermaking resin is prepared by combining polymer with secondary amine group with bentonite to form secondary amine group of bentonite compound, using epihalohydrin to carry out quaterisation for 10-100% of secondary amine group contained in bentonite compound for obtaining trouble controlling agent of papermaking resin. The preparing process is either water dissolving method of flux method.

Description

(1) Technical field [0001] The invention relates to a papermaking resin obstacle control agent and a preparation method thereof, in particular to a cationic hydrophobic bentonite compound and a preparation method thereof. (2) Background technology [0002] Pitch in papermaking refers to the sticky insoluble deposits that form during pulp and paper production. These viscous substances can be derived from logs or secondary fibers, including all viscous substances soluble in organic solvents but insoluble in water, commonly known as resins. The resins derived from logs mainly include resin acids, fatty acids, fatty acid esters and unsaponifiables, while the components of resins derived from secondary fibers are much more complex, such as adhesives for packaging cartons, paper bags and books and magazines, various Pressure-sensitive adhesives for packaging labels and ziplock bags, various coating adhesives, oxidation and hydrolysis products of wood components, residual deinking...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H17/17D21H21/02
Inventor 刘温霞
Owner QILU UNIV OF TECH
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