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Biomass-based water type cylinder adhesive and preparation method thereof

A technology of sticking agent and biomass, which is applied in the direction of coating, polyamide coating, etc., and can solve the problems of the sticking agent containing organic chlorine and poor wrinkling effect

Active Publication Date: 2021-06-08
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved: In order to solve the shortcomings of the existing tank sticking agent containing organic chlorine, acidity and poor wrinkling effect, the invention discloses a biomass-based water-type tank sticking agent and its preparation method

Method used

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  • Biomass-based water type cylinder adhesive and preparation method thereof
  • Biomass-based water type cylinder adhesive and preparation method thereof
  • Biomass-based water type cylinder adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Step 1: Weigh 50.00g of levulinic acid, 31.03g of acrylic acid, and 50.00g of water into a 250mL three-necked flask, and stir and react at 140°C for 2h. After the reaction is finished, the temperature is lowered to room temperature to obtain a biomass-based dibasic acid.

[0026] Step 2: Add 20.90 g of the prepared dibasic acid, 10.3 g of diethylenetriamine and 20.0 g of water into a 100 mL three-necked flask. The reaction was connected to a distillation device, and after reacting at 150°C for 4 hours, the generated water was distilled off under reduced pressure, and the distillation ended when there was no distillate. Finally, a yellow transparent water-based polyamide is obtained.

[0027] Step 3: Add 50.00 g of amino-terminated polyether and 6.15 g of dimer acid epoxy resin into a 250 mL three-necked flask, and add a catalyst in an amount of 0.5 wt.% of the total amount of dimer acid epoxy resin and amino-terminated polyether. The reaction was stirred at 140°C for ...

Embodiment 2

[0030] Step 1: Weigh 50.00g of levulinic acid, 31.03g of acrylic acid, and 50.00g of water into a 250mL three-necked flask, and stir and react at 140°C for 2h. After the reaction is finished, the temperature is lowered to room temperature to obtain a biomass-based dibasic acid.

[0031] Step 2: Add 20.90 g of the prepared dibasic acid, 10.3 g of diethylenetriamine and 20.0 g of water into a 100 mL three-necked flask. The reaction was connected to a distillation device, and after reacting at 150°C for 4 hours, the generated water was distilled off under reduced pressure, and the distillation ended when there was no slip-out. Finally, a yellow transparent water-based polyamide is obtained.

[0032] Step 3: Add 50.00 g of amino-terminated polyether and 6.15 g of dimer acid epoxy resin into a 250 mL three-necked flask, and add a catalyst in an amount of 0.5 wt.% of the total amount of dimer acid epoxy resin and amino-terminated polyether. The reaction was stirred at 140°C for 4 ...

Embodiment 3

[0035] Step 1: Weigh 50.00g of levulinic acid, 31.03g of acrylic acid, and 50.00g of water into a 250mL three-necked flask, and stir and react at 140°C for 2h. After the reaction is finished, the temperature is lowered to room temperature to obtain a biomass-based dibasic acid.

[0036] Step 2: Add 20.90 g of the prepared dibasic acid, 10.3 g of diethylenetriamine and 20.0 g of water into a 100 mL three-necked flask. The reaction was connected to a distillation device, and after reacting at 150°C for 4 hours, the generated water was distilled off under reduced pressure, and the distillation ended when there was no slip-out. Finally, a yellow transparent water-based polyamide is obtained.

[0037] Step 3: Add 50.00 g of amino-terminated polyether and 6.15 g of dimer acid epoxy resin into a 250 mL three-necked flask, and add a catalyst in an amount of 0.5 wt.% of the total amount of dimer acid epoxy resin and amino-terminated polyether. The reaction was stirred at 140°C for 4 ...

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Abstract

The invention relates to a biomass-based water type cylinder adhesive and a preparation method thereof. The preparation method comprises the following steps: carrying out olefine aldehyde condensation on levulinic acid and acrylic acid, and adding water as a solvent in the reaction process to obtain binary acid; carrying out amidation reaction on the prepared binary acid and diethylenetriamine in a solution, and carrying out reduced pressure distillation on an obtained product to remove a solvent and generated water, so as to prepare the water-based polyamide; preparing water-based epoxy resin from amino-terminated polyether grafted dimer acid epoxy resin with a a phosphazene catalyst as a reaction catalyst; and mixing a water-based polyamide aqueous solution with the water-based epoxy resin to obtain the biomass-based water-based cylinder adhesive. The biomass-based water-based cylinder adhesive prepared by the invention is uniform in film formation, high in rewettability and relatively high in shear strength. By changing the adding amount of the water-borne epoxy resin, the mechanical property of the cylinder adhesive can be adjusted.

Description

technical field [0001] The invention belongs to the field of preparation of a water-based cylinder sticking agent, and in particular relates to a cylinder sticking agent sprayed on a Yankee dryer in the production process of wrinkle toilet paper so as to be bonded to paper webs and a preparation method thereof. Background technique [0002] In the production process of toilet paper, when the paper web passes through the Yankee dryer, it collides with the scraper to produce wrinkles to improve the softness and water absorption of the toilet paper, so it is necessary to maintain good adhesion between the paper web and the dryer force. However, with the loss of a large amount of water in the paper web, its adhesion to the drying cylinder will be greatly reduced. Therefore, it is necessary to use a cylinder sticking agent to make the paper web adhere to the drying cylinder better, so as to achieve excellent creping effect. [0003] The commonly used cylinder sticking agent is P...

Claims

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Application Information

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IPC IPC(8): C09D177/00C09D187/00C08G69/26C08G81/00
CPCC08G69/26C08G81/00C09D177/00C08L87/005
Inventor 聂小安李帅王义刚陈洁
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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