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A kind of honeycomb paperboard with humidity control function and its preparation method

A honeycomb paperboard and functional technology, which is applied in the field of honeycomb paperboard with humidity control function and its preparation, can solve the problems of difficult paperboard performance and the like, and achieve the effect of improving the buffer performance

Active Publication Date: 2018-11-09
肇庆市汇嘉纸品包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The one-way adjustment of the water content of the cardboard, that is, the use of methods such as coating hydrophobic agents to reduce the water content of the cardboard or the use of methods such as spraying to increase the water content of the cardboard, are all one-way, non-active adjustment methods, and it is difficult to keep the cardboard at all times. good performance

Method used

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  • A kind of honeycomb paperboard with humidity control function and its preparation method
  • A kind of honeycomb paperboard with humidity control function and its preparation method
  • A kind of honeycomb paperboard with humidity control function and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] 1) Preparation of acrylic acid-sodium acrylate-acrylamide solution:

[0050] Prepare a NaOH solution with a concentration of 35%. Under normal temperature and electromagnetic stirring, use a dropper to slowly drop the prepared NaOH solution into 10% acrylic acid. Then, according to (acrylic acid + sodium acrylate): acrylamide = 4: The mass ratio of 1 weighs a certain amount of acrylamide and adds it to the above acrylic acid (sodium) solution, stirring continuously until the acrylamide is completely dissolved.

[0051] 2) Preparation of konjac glucomannan-(acrylic acid+sodium acrylate)-acrylamide composite humidity-conditioning material:

[0052] Weigh 0.1g of konjac glucomannan, add it to the above mixed solution, stir for 10 min to make the konjac glucomannan evenly mixed in the solution, add 0.05g of N, N-methylenebisacrylamide as cross-linking agent, continue stirring for 10 min. Add 0.1 g of Span-60 as a dispersant and 0.1 g of potassium persulfate as an initiato...

Embodiment 2

[0056] 1) Preparation of acrylic acid-sodium acrylate-acrylamide solution:

[0057] Prepare a NaOH solution with a concentration of 10%. Under normal temperature and electromagnetic stirring, use a dropper to slowly drop the prepared NaOH solution into 35% acrylic acid. Then, according to (acrylic acid + sodium acrylate): acrylamide = 4:1 Weigh a certain amount of acrylamide and add it to the above-mentioned acrylic acid (sodium) solution, and keep stirring until the acrylamide is completely dissolved.

[0058] 2) Preparation of konjac glucomannan-(acrylic acid+sodium acrylate)-acrylamide composite humidity-conditioning material:

[0059]Weigh 0.3g of konjac glucomannan, add it to the above mixed solution, stir for 10 min to make the konjac glucomannan evenly mixed in the solution, add 0.5g of N, N-methylenebisacrylamide as a cross-linking agent, and continued to stir for 10 min. 0.5 g of Span-60 was added as a dispersant and 0.32 g of potassium persulfate as an initiator. ...

Embodiment 3

[0063] 1) Preparation of acrylic acid-sodium acrylate-acrylamide solution:

[0064] Prepare a NaOH solution with a concentration of 35%. Under normal temperature and electromagnetic stirring, use a dropper to slowly drop the prepared NaOH solution into 20% acrylic acid. Then, according to (acrylic acid + sodium acrylate): acrylamide = 4:1 Weigh a certain amount of acrylamide and add it to the above-mentioned acrylic acid (sodium) solution, and keep stirring until it is completely dissolved.

[0065] 2) Preparation of konjac glucomannan-(acrylic acid+sodium acrylate)-acrylamide composite humidity-conditioning material:

[0066] Weigh 0.2g of konjac glucomannan, add it to the above mixed solution, stir for 10 min to make the konjac glucomannan evenly mixed in the solution, add 0.3g of N, N-methylenebisacrylamide as a cross-linking agent, and continued to stir for 10 min. 0.5 g of Span-60 was added as a dispersant and 0.4 g of potassium persulfate as an initiator.

[0067] 3) ...

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Abstract

The invention discloses a humidity-adjusting honeycomb paperboard and a preparation method thereof. The humidity-adjusting honeycomb paperboard comprises upper surface paper, a composite honeycomb core and lower surface paper; the composite honeycomb core is composed of a plurality of cylindrical honeycomb cells each filled with foaming humidity-adjusting material, and the surface paper are adhered to the upper and lower surfaces of the composite honeycomb core respectively; the preparation method comprises: preparing acrylic acid, sodium acrylate and acrylamide solution; preparing konjac glucomannan-(acrylic acid and sodium acrylate)-acrylamide composite humidity-adjusting material; filling the cylindrical honeycomb cells, each having the lower surface paper adhered to its lower surface, with the composite humidity-adjusting material, microwave-foaming in a microwave oven, and adhering the upper surface paper. The honeycomb paperboard of the invention has humidity adjusting function, can actively adjust interior humidity so that the interior humidity is kept to 50%+ / -5%, the problem that the mechanical properties of the traditional honeycomb paperboard are susceptible to humidity is effectively improved, and the in-situ foaming manner enables further improvement for buffering performance of the honeycomb paperboard.

Description

technical field [0001] The invention relates to a honeycomb paperboard and a preparation method thereof, in particular to a honeycomb paperboard with a humidity control function and a preparation method thereof. Background technique [0002] As a green packaging material with novel structure, light weight and low price, and excellent load-bearing and cushioning properties, honeycomb paperboard has attracted widespread attention and has been used in many fields such as packaging, construction, and agriculture. During the manufacture, storage and use of honeycomb paperboard, it may experience complex and changeable temperature and humidity environments. Due to the inherent hygroscopicity of paper packaging materials, the performance of honeycomb paperboard is quite sensitive to environmental conditions, especially changes in ambient humidity, and changes in humidity will cause changes in the performance of honeycomb paperboard. The one-way adjustment of the water content of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B29/00B32B3/12C08F251/00C08F220/06C08F220/56
CPCB32B3/12B32B29/002B32B2439/00C08F251/00C08F220/06
Inventor 鄂玉萍余丽萍屠晓芬
Owner 肇庆市汇嘉纸品包装有限公司