Dry powder adhesive for paper products and preparation method thereof

A technology for adhesives and paper products, applied in the direction of adhesives, adhesive types, grafted polymer adhesives, etc., to increase storage stability, solve the problem of mildew and deterioration, and reduce weight and volume

Active Publication Date: 2013-04-03
FOSHAN HAITE CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a dry powder adhesive for paper products, increase the solid content of the adhesive, reduce transportation costs, reduce storage space and prolong the shelf life, and solve the problem that it is easy to solidify and inconvenient to use in severe cold regions

Method used

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  • Dry powder adhesive for paper products and preparation method thereof

Examples

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Comparison scheme
Effect test

reference example 1

[0148] Add 40kg of water, 25kg of acrylate, 2kg of sodium lauryl sulfate, 4kg of methacrylic acid, and 0.5kg of zinc acetate into a 500L reaction kettle, raise the temperature to 35°C and stir evenly; add 0.2kg of K 2 S 2 o 8 The prepared aqueous solution was stirred and heated to 65°C within 0.1h; stirred at constant temperature, 30kg acrylate, 0.6kg K were slowly added within 1.5h 2 S 2 o 8 The prepared aqueous solution was heated up to 80°C and stirred at a constant temperature for 0.5h to prepare a certain brand of hardcover box glue on the market.

[0149] How to use: use it directly, evenly apply it on the face paper for bonding.

Embodiment 1

[0151] Add 45kg of deionized water, 15kg of acrylate, 3kg of sodium lauryl sulfate, 6kg of methacrylic acid, and 0.3kg of zinc acetate into a 500L reactor, heat up to 45°C and stir evenly; add 0.3kg of K 2 S 2 o 8 The prepared aqueous solution was stirred and heated to 80°C within 0.5 hours; stirred at constant temperature, slowly added 30kg acrylate, 0.6kg K 2 S 2 o 8 Prepared aqueous solution; heat up to 90°C and stir for 0.5h; maintain a constant temperature of 90°C, add 150kg of soybean starch, 1.8kg of ammonium persulfate aqueous solution, 0.03kg of sodium diacetate, 48kg of calcium carbonate and stir for 1h, then stop heating, discharge the reaction kettle, and put Put it into an oven, bake at 125 degrees Celsius for 3 hours, then cool to room temperature and pulverize with a mill to obtain a dry powder adhesive.

[0152] Wherein, the acrylate selected in embodiment 1 is methyl acrylate.

[0153] How to use: Stir the dry powder adhesive with water 1:5 to make a past...

Embodiment 2

[0155] Add 40kg of deionized water, 17kg of acrylate, 3kg of sodium lauryl sulfate, 6kg of methacrylic acid, and 0.3kg of zinc acetate into a 500L reactor, heat up to 45°C and stir evenly; add 0.3kg of K 2 S 2 o 8 The prepared aqueous solution was stirred and heated to 80°C within 0.5 hours; stirred at constant temperature, slowly added 34kg acrylate, 0.6kg K 2 S 2 o 8 Prepared aqueous solution; heat up to 90°C and stir for 0.5h; maintain a constant temperature of 90°C, add 140kg of cornstarch, 1.8kg of ammonium persulfate aqueous solution, 0.03kg of sodium diacetate, 59kg of kaolin and stir for 1h. Oven, bake at 120 degrees Celsius for 2.5 hours, then cool to room temperature and pulverize with a mill to obtain a dry powder adhesive.

[0156] Wherein, the acrylate selected in embodiment 2 is ethyl acrylate.

[0157] How to use: Stir the dry powder adhesive with water at a ratio of 1:6 to form a paste, and apply it evenly on the surface paper for bonding.

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Abstract

The invention discloses a dry powder adhesive for paper products, which comprises the following components in parts by weight: 2-25 parts of acrylic ester, 0.1-5 parts of emulsifier, 0.1-12 parts of methacrylic acid, 0.1-12 parts of cross-linking agent, 0.01-12 parts of accelerant, 1-35 parts of filler, 35-65 parts of starch, 0.01-8 parts of oxidant, 0.01-0.2 parts of preservative and 1-25 parts of water. Correspondingly, the invention also provides a preparation method of the dry powder adhesive for paper products. According to the invention, the solid content of the dry powder adhesive for paper products is as high as 95%, the transporting cost can be reduced, the storage space can be reduced and the guarantee period can be prolonged, and the dry powder adhesive can be stored also at (-20) DEG C, and is lightly affected by temperature change, thus the problems that the adhesive in the prior art is liable to solidify in severe cold areas and is inconvenient for using are solved; and in addition, the dry powder adhesive is excellent in bonding strength and high in T-type peel strength.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a dry powder adhesive for paper products and a preparation method thereof. Background technique [0002] At present, the adhesives used for paper surface bonding are generally liquid, paste, or paste, mainly including epoxy adhesives, modified phenolic adhesives, polyurethane adhesives, α-cyanoacrylate adhesives, and the like. With the continuous in-depth research and exploration of acrylate resins, acrylate resins are widely used in adhesives due to their advantages such as light color, good color retention, good gloss, environmental protection, good heat resistance, corrosion resistance and pollution resistance. In the field, water-based acrylic adhesives are gradually replacing solvent-based similar adhesives and become a hot topic of research at home and abroad. However, the solvent of water-based acrylate is water, and the reaction is carried out in a water environment, s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J151/02C08F251/00C08F220/14C08F220/18C08F220/28C08F220/06
Inventor 郑伟洲
Owner FOSHAN HAITE CHEM TECH
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