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Preparation method of antibacterial paperboard high in bonding strength

A technology of bonding strength and cardboard, which is applied in the direction of paper, papermaking, textiles and papermaking, etc., can solve the problems of low bonding strength between board layers and poor antibacterial effect, and achieve the effect of improving bonding strength and improving antibacterial effect

Inactive Publication Date: 2018-04-06
CHANGZHOU SIYU ENVIRONMENTAL PROTECTION MATERIAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for preparing antibacterial cardboard with high bonding strength in view of the defects of low bonding strength between board layers and poor antibacterial effect in ordinary cardboard

Method used

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  • Preparation method of antibacterial paperboard high in bonding strength

Examples

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example 1

[0023]To the four-necked flask equipped with condenser, thermometer and stirrer, add 12g maleic acid, 45mL deionized water and 6g polytetramethylene glycol, mix and dissolve for 10min, then add 50g acrylamide, 4g methyl methacrylate to the flask after dissolving. Acryloyloxyethyltrimethylammonium chloride and 3g N-methylol acrylamide were continuously mixed and dissolved for 16min to obtain a mixed solution. The pH of the mixed solution was adjusted to 4 with a mass fraction of 20% sodium hydroxide solution, and heated. After the temperature was raised to 65°C, 10 mL of ammonium persulfate solution with a mass fraction of 16% and 8 mL of polysorbate were added to the flask for polymerization reaction for 12 min, and 2 g of ammonium persulfate and 1 g of sodium sulfite were added to the flask for a mixed reaction for 5 min to obtain a reaction solution. , and control the temperature of the reaction liquid to be 75 ℃, cool down, the discharge is the self-made amphoteric polyacryl...

example 2

[0025] To the four-necked flask equipped with condenser, thermometer and stirrer, add 14g maleic acid, 50mL deionized water and 7g polytetramethylene glycol, mix and dissolve for 11min, then add 55g acrylamide, 5g methyl methacrylate to the flask after dissolving. Acryloyloxyethyltrimethylammonium chloride and 4g of N-methylol acrylamide, continue to mix and dissolve for 18min to obtain a mixed solution, adjust the pH of the mixed solution to 5 with a mass fraction of 20% sodium hydroxide solution and heat up After reaching 70 °C, 11 mL of ammonium persulfate solution with a mass fraction of 16% and 9 mL of polysorbate were added to the flask for polymerization reaction for 14 min, and 3 g of ammonium persulfate and 2 g of sodium sulfite were added to the flask for a mixed reaction for 6 min to obtain a reaction solution. And control the temperature of the reaction liquid to be 80 ℃, cool down, and discharge the self-made amphoteric polyacrylamide emulsion, weigh 11 g of zeolit...

example 3

[0027] To the four-necked flask equipped with condenser, thermometer and stirrer, add 16g maleic acid, 55mL deionized water and 8g polytetramethylene glycol, mix and dissolve for 12min, then add 60g acrylamide, 6g methyl methacrylate to the flask after dissolving. Acryloyloxyethyltrimethylammonium chloride and 5g of N-methylol acrylamide were continuously mixed and dissolved for 20min to obtain a mixed solution. The pH of the mixed solution was adjusted to 6 with a mass fraction of 20% sodium hydroxide solution, and heated. After the temperature was raised to 75°C, 12 mL of ammonium persulfate solution with a mass fraction of 16% and 10 mL of polysorbate were added to the flask for polymerization for 16 min, and 4 g of ammonium persulfate and 3 g of sodium sulfite were added to the flask for a mixed reaction for 7 min to obtain a reaction solution. , and control the temperature of the reaction solution to be 85 °C, cool down, and the discharge is the self-made amphoteric polyac...

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Abstract

The invention discloses a preparation method of antibacterial paperboard high in bonding strength, and belongs to the technical field of board preparation. An amphoteric polyacrylamide emulsion servesas a bridge and is combined and linked with silver-loaded zeolite and paper pulp, gaps between layers are filled with cationic starch and modified chitosan, and the antibacterial paperboard high in bonding strength is obtained; zeolite of a porous structure is modified through a silver nitrate solution, a catalytic reaction is utilized for sterilization, water molecules and oxygen in the air areactivated with nanometer particles, and then the antibacterial effect of the paperboard is improved, the very good retention effect is achieved for the starch, and the bonding strength, between the layers, of the paperboard is further improved; crosslinked chitosan resin is prepared by mixing the chitosan with epichlorohydrin, formalin and acetic acid, the crosslinked chitosan resin can control loss of the chitosan and enhance adsorptive selectivity of the chitosan, and then the effect of killing bacteria is achieved; the bacterial effect of the paperboard is further improved, and a wide application prospect is achieved.

Description

technical field [0001] The invention discloses a preparation method of high-bonding strength antibacterial paperboard, and belongs to the technical field of plate preparation. Background technique [0002] Cardboard is also called cardboard. Thick paper sheets made from various pulps with interwoven fibers. The difference between cardboard and paper is usually distinguished by basis weight and thickness, and the basis weight is generally more than 200g / m 2 , Thickness greater than 0.5mm is called cardboard (in addition: Generally, paper with thickness greater than 0.1mm is called cardboard. Generally, the quantitative weight is less than 225g / m 2 Considered paper, basis weight 225g / m 2 or above are considered cardboard). It is usually made of various plant fibers as raw materials, and also mixed with non-plant fibers, and is made on a cardboard machine. Some special paperboards are also mixed with animal fibers such as wool or mineral fibers such as asbestos. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H17/24D21H17/29D21H17/37D21H17/67D21H21/36
Inventor 龙海燕杨亚生陈可
Owner CHANGZHOU SIYU ENVIRONMENTAL PROTECTION MATERIAL SCI & TECH
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