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Paper-tube adhesive and preparation method thereof

A paper tube glue and emulsion technology, applied in the directions of adhesives, monocarboxylic acid ester copolymer adhesives, adhesive types, etc., can solve the problems of poor water resistance of paper tube glue, can not meet production needs, etc., and achieve increased gluing. Strength and water resistance, water resistance improvement, effect of improving water resistance

Inactive Publication Date: 2017-10-24
常州明华运输有限公司
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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: Aiming at the problem that the traditional paper tube glue has poor water resistance and cannot meet the production demand, a paper tube glue and its preparation method are provided

Method used

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  • Paper-tube adhesive and preparation method thereof

Examples

Experimental program
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Effect test

example 1

[0023] Filter the papermaking black liquor to obtain the filtrate. Take 2kg of the filtrate and 400mL of sulfuric acid solution with a mass fraction of 25% and add them to a beaker. Place the beaker in a magnetic stirrer with a digital speed measurement and constant temperature at a temperature of 130°C and a speed of 400r / min. Under the condition of stirring and reacting for 3 hours, filter to obtain the filter residue, add the filter residue and 300mL mass fraction of 15% sodium hydroxide solution into a three-necked flask with a thermometer and a reflux device, place the flask in a water bath, and control the temperature of the water bath to 80°C, then add 5g of sodium periodate and 0.5g of methyl rhenium trioxide to the three-necked flask, and stir for 90 minutes. After the reaction, add hydrochloric acid with a mass fraction of 20% to the three-necked flask to adjust the pH of the material in the three-necked flask It was 4.8, filtered after standing for 40min to obtain a ...

example 2

[0025] Filter the papermaking black liquor to obtain the filtrate. Take 1kg of the filtrate and 300mL of sulfuric acid solution with a mass fraction of 25% and add them to a beaker. Place the beaker in a magnetic stirrer with digital speed measurement and constant temperature at a temperature of 120°C and a speed of 300r / min. Under the condition of stirring and reacting for 2 hours, filter to obtain the filter residue, add the filter residue and 200mL mass fraction of 15% sodium hydroxide solution into a three-necked flask with a thermometer and a reflux device, place the flask in a water bath, and control the temperature of the water bath 70°C, then add 3g of sodium periodate and 0.3g of methyl rhenium trioxide to the three-necked flask, stir and react for 60min, after the reaction, add hydrochloric acid with a mass fraction of 20% to the three-necked flask to adjust the pH of the material in the three-necked flask It was 4.5, filtered after standing for 30min to obtain a filt...

example 3

[0027]Filter the papermaking black liquor to obtain the filtrate. Take 1.5kg of the filtrate and 350mL of sulfuric acid solution with a mass fraction of 25% and add them to a beaker. Place the beaker in a magnetic stirrer with a digital speed measurement and constant temperature at a temperature of 125°C and a rotation speed of 350r / Under the condition of stirring and reacting for 2 hours, filter to obtain the filter residue, add the filter residue and 250mL mass fraction of 15% sodium hydroxide solution into a three-necked flask with a thermometer and a reflux device, place the flask in a water bath, and control the water bath The temperature is 75°C, then add 4g of sodium periodate and 0.4g of methyl rhenium trioxide to the three-necked flask, stir and react for 70min, after the reaction, add a pH regulator to the three-necked flask to adjust the pH of the material in the three-necked flask to 4.7 , filtered after standing for 35min to obtain a filter cake, the filter cake w...

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Abstract

The invention relates to paper-tube adhesive and a preparation method thereof, which belongs to the technical field of adhesive. The paper-tube adhesive is prepared by mixing emulsion, oxidized lignin, potassium persulfate, ethylene glycol, kaolin powder, aluminum phosphate and water, heating, stirring to facilitate the reaction, cooling to room temperature, continuously stirring, and loading. The emulsion is prepared by heating and mixing water and polyvinyl alcohol, then cooling, adding emulsifier, plasticizer, defoaming agent and the like, continuously adding an initiator, heating, and stirring to facilitate the reaction; and the oxidized lignin is prepared by filtering papermaking black solution, heating and stirring filtrate and a sulfuric acid solution to facilitate the reaction, filtering, mixing filter residues and a sodium hydroxide solution, adding sodium periodate and methyltrioxorhenium, stirring to facilitate the reaction, finally standing, filtering and washing. The paper-tube adhesive is good in water resistance and capable of meeting the production requirement.

Description

technical field [0001] The invention relates to a paper tube glue and a preparation method thereof, belonging to the technical field of adhesives. Background technique [0002] Adhesive for paper tubes is commonly known as paper tube glue, paper tube glue, etc. It is a special adhesive for making various paper tubes, paper barrels, paper cans and related paper products. [0003] The traditional commonly used paper tube glue is polyvinyl acetate emulsion, which refers to vinyl acetate as the main monomer, water as the dispersion medium, and is made by homopolymerization or copolymerization with other monomers by means of emulsion polymerization or suspension polymerization. polymer emulsion. Polyvinyl acetate emulsion is one of the most widely used synthetic resin emulsions with the longest history. Polyvinyl acetate adhesive is a kind of thermoplastic adhesive obtained by polymerization of vinyl acetate monomer, commonly known as white latex. Advantages, very popular with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J131/04C09J197/00C09J11/04C09J11/06C08F218/08C08F220/58C08F2/30C08H7/00
CPCC09J131/04C08F2/30C08F218/08C08F220/58C08H6/00C08K2003/327C08L2205/03C08L2205/035C08L2312/00C09J11/04C09J11/06C08L97/00C08K3/346C08K3/32C08K5/12
Inventor 侯晓华薛焱璟宋玲
Owner 常州明华运输有限公司
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