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Preparation method of adhesive for paper tube

A paper tube glue, stirring and mixing technology, which is applied in the direction of adhesives, non-polymer adhesive additives, adhesive additives, etc., can solve the problems of paper tube pressure drop, poor water resistance, and low bonding strength of paper tube glue , to achieve the effects of enhancing toughness, improving water-resistant bonding performance, and improving compressive performance

Inactive Publication Date: 2018-09-04
张剑
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for preparing paper tube glue in view of the problems that the current paper tube glue has low bonding strength, poor water resistance, and the paper tube compressive strength decreases significantly with the increase of storage time

Method used

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  • Preparation method of adhesive for paper tube

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preparation example Construction

[0017] A preparation method for paper tube glue, comprising the steps of:

[0018] (1) Take sodium hydroxide and sodium silicate and add distilled water according to the mass ratio of 2:3:10, stir and mix for 20~30min, then add absolute ethanol with 2~3 times the mass of sodium hydroxide, heat up to 40~50℃ and stir Mix for 1-2 hours to obtain a mixture, take the mixture and add soybean meal powder at a mass ratio of 10:3, stir and mix at 50-60°C for 40-60 minutes to obtain a mixture, in parts by mass, take 20-30 parts of the mixture, 15 Mix ~20 parts of ethylene glycol divinyl glyceryl ether and 40~50 parts of diethylenetriamine, stir and mix at 35~40°C for 2~3 hours to obtain a stirred mixture;

[0019] (2) Take L-tartaric acid and mix it with acetyl chloride at a mass ratio of 4:5, then add phosphoric acid with 2-5% of the mass of L-tartaric acid, heat up to 70-75°C, stir and mix for 1-2 hours, and rotate to evaporate to obtain a rotary evaporator , take the rotary evaporat...

Embodiment 1

[0024] Soybean meal powder: low-temperature soybean meal powder, purchased from Jinluo Group, crushed through a 150-mesh sieve, and collected sieved particles.

[0025] A preparation method for paper tube glue, comprising the steps of:

[0026] (1) Take sodium hydroxide and sodium silicate and add distilled water according to the mass ratio of 2:3:10, stir and mix for 20 minutes, then add absolute ethanol twice the mass of sodium hydroxide, heat up to 40°C and stir and mix for 1 hour to obtain a mixed solution , take the mixed liquid and add soybean meal powder at a mass ratio of 10:3, stir and mix at 50°C for 40 minutes to obtain a mixture, in parts by mass, take 20 parts of the mixture, 15 parts of ethylene glycol divinyl glyceryl ether, 40 parts of diethylene triethylene Amines were mixed, and stirred and mixed at 35°C for 2 hours to obtain a stirred mixture;

[0027] (2) Take L-tartaric acid and mix it with acetyl chloride at a mass ratio of 4:5, then add phosphoric acid ...

Embodiment 2

[0032] Soybean meal powder: low-temperature soybean meal powder, purchased from Jinluo Group, crushed through a 150-mesh sieve, and collected sieved particles.

[0033] A preparation method for paper tube glue, comprising the steps of:

[0034] (1) Take sodium hydroxide and sodium silicate and add distilled water according to the mass ratio of 2:3:10, stir and mix for 30 minutes, then add anhydrous ethanol which is 3 times the mass of sodium hydroxide, heat up to 50°C and stir and mix for 2 hours to obtain a mixed solution , take the mixed solution and add soybean meal powder at a mass ratio of 10:3, stir and mix at 60°C for 60 minutes to obtain a mixture, in parts by mass, take 30 parts of the mixture, 20 parts of ethylene glycol divinyl glyceryl ether, 50 parts of diethylene triethylene Amines were mixed, stirred and mixed at 40°C for 3 hours to obtain a stirred mixture;

[0035] (2) Take L-tartaric acid and mix it with acetyl chloride at a mass ratio of 4:5, then add phosp...

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Abstract

The invention discloses a preparation method of adhesive for a paper tube, which belongs to the field of chemical industry. L-tartaric acid and acetyl chloride are used as raw materials, then thick phosphoric acid is added as a catalyst to perform the organic synthetic reaction under a heating condition, a reactant is used as a modifier to modify a prepared soybean-based adhesive substance and modify the prepared soybean-based adhesive, on the basis that the original four-level structure of the protein is broken through by virtue of alkaline treatment, the structure of the protein is further changed, the hydrophilic group and a hydrophobic group wrapped inside the globulin are exposed, so that a polypeptide is unfolded, the adhesion strength is improved, a large strong bond combination force can be generated between the protein molecules of the adhesive and between the protein molecule and paper tube cellulose in the curing process, and the pressure resistance is improved. By adoptingthe preparation method of the adhesive for the paper tube, the problems that the existing paper tube that the adhesion strength is low, the water resistance is poor and the pressure resisting strengthof the paper tube is greatly reduced along with the storage time can be solved.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a preparation method of paper tube glue. Background technique [0002] Adhesive for paper tubes, commonly known as paper tube glue, is a special adhesive for making various paper tubes, paper barrels, paper cans and related paper products. Various products have special requirements for paper tube adhesives depending on their uses. When making high-speed spinning POY and low-speed stretched DTY paper tubes for polyester plants, the paper tubes are required to have a good combination of high enough compressive strength, hardness, toughness, water resistance, heat resistance and creep resistance. performance. In fact, the above properties depend to a considerable extent on the performance of the paper tube glue used, that is, the paper tube glue needs to have the following properties: good physical properties, milk jelly, non-toxic, tasteless, and long storage period. ...

Claims

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Application Information

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IPC IPC(8): C09J4/06C09J4/02C09J11/04C09J11/06C09J11/08
CPCC09J4/06C09J11/04C09J11/06C09J11/08
Inventor 张剑庄文琴刘红妹
Owner 张剑
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