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Adhesive for corrugated boxes

A technology for corrugated boxes and adhesives, applied in adhesives, polymer adhesive additives, non-polymer adhesive additives, etc. Poor high temperature resistance, corrugated box product quality can not be guaranteed, etc., to achieve the effect of enhanced adhesion performance, good adhesion performance, and quality assurance

Active Publication Date: 2021-03-23
CHUZHOU CIGARETTE MATERIALS FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of adhesive has weak cohesive force, poor compression resistance, moisture resistance and high temperature resistance, so the quality of the produced corrugated box products cannot be guaranteed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] Step 1. Preparation of modified epoxy resin: Add epoxy resin, maleic acid resin, and 2-imidazolidinone into the reaction kettle, stir and react at 120-150°C for 0.9-1.3h, cool to 80-90°C, Resorcinol bisglycidyl ether was added dropwise, and the stirring reaction was continued for 0.5-0.6h to obtain a modified epoxy resin;

[0026] Wherein, the mass ratio of epoxy resin, maleic acid resin, 2-imidazolidinone, and resorcinol bisglycidyl ether is 10:2-4:0.6-1:0.3-0.5;

[0027] The adhesive performance of the modified epoxy resin is significantly improved, and the high temperature resistance is strong, which can better meet the performance requirements of a large temperature range;

[0028] Step 2: Add modified epoxy resin, starch, and epoxy soybean oil into the reactor, stir and heat up to 90-110°C, stir at constant temperature for 10-15min, and cool down to 60-70°C;

[0029] Step 3: Put gas phase silica, trimesyl trimesate, and cooked tung oil into the reactor, and ultras...

Embodiment 1

[0032] A corrugated box adhesive, made of the following raw materials in parts by weight: 60 parts of modified epoxy resin, 10 parts of starch, 10 parts of epoxy soybean oil, 1 part of fumed white carbon black, trimesicarboxylated trimargyl tricarboxylate 1 part, 4-7 parts of phenyl-α-naphthylamine, 3-5 parts of cooked tung oil, nano-Au 30 S(SCH 2 CH 2 CH 3 ) 18 0.1 part of cluster;

[0033] The starch is modified tapioca starch, and its preparation method is as follows: add 10 parts of tapioca starch and 30 parts of distilled water into the flask, stir and heat to 40°C, keep it warm for 10min, after the starch is fully dissolved, heat up to 75°C, add 0.7 parts of weak nitric acid Oxidize for 25 minutes, cool down to 58°C, add 1 part of 2-hydroxysuccinic acid, oscillate ultrasonically for 5 minutes, then add butyl acrylate dropwise, increase the stirring speed, and heat up for 1.5 hours to prepare modified tapioca starch;

[0034] The corrugated box adhesive is prepared b...

Embodiment 2

[0041]A corrugated box adhesive, made of the following raw materials in parts by weight: 60-80 parts of modified epoxy resin, 12 parts of starch, 13 parts of epoxy soybean oil, 1.5 parts of fumed white carbon black, triacetylene trimesic acid 1.5 parts of propyl ester, 5 parts of phenothiazine, 4 parts of cooked tung oil, nano Au 30 S(SCH 2 CH 2 CH 3 ) 18 0.2 copies of clusters;

[0042] The starch is modified tapioca starch, and its preparation method is as follows: add 10 parts of tapioca starch and 35 parts of distilled water into the flask, stir and heat to 43°C, keep it warm for 11min, after the starch is fully dissolved, heat up to 78°C, add 0.8 parts of weak nitric acid Oxidize for 28 minutes, cool down to 62°C, add 1.5 parts of 2-hydroxysuccinic acid, ultrasonically shake for 7 minutes, then add butyl acrylate dropwise, increase the stirring speed, and heat up for 1.8 hours to prepare modified tapioca starch;

[0043] The corrugated box adhesive is prepared by the...

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Abstract

The invention discloses a corrugated box adhesive, which is made of the following raw materials in parts by weight: 60-80 parts of modified epoxy resin, 10-15 parts of starch, 10-15 parts of epoxy soybean oil, and 1 part of fumed white carbon black. ‑2 parts, 1‑2 parts of trimesin tricarboxylate, 4‑7 parts of antioxidant, 3‑5 parts of cooked tung oil, nanometer Au 30 S(SCH 2 CH 2 CH 3 ) 18 Clusters 0.1‑0.3 parts. The present invention reasonably selects the weight components of the corrugated box adhesive, and adopts appropriate steps for deployment, so that the adhesive has high bonding strength and good bonding performance; the present invention adopts modified epoxy resin and modified Non-toxic starch can enhance the high temperature resistance and adhesion performance of the adhesive. At the same time, the prepared adhesive is non-toxic and harmless, and the phenomenon of water-gel separation is not easy to occur. The preparation method is simple, the process conditions are low, and the product quality is stable. The cardboard obtained after bonding has high pressure resistance and strong puncture resistance, and the quality of the produced corrugated box can be guaranteed.

Description

technical field [0001] The invention belongs to the technical field of corrugated carton preparation, and in particular relates to a corrugated carton adhesive. Background technique [0002] Among all kinds of packaging for industrial products, corrugated boxes have become the mainstream of the packaging industry. Because of their light weight, foldability, low cost, environmental protection, easy specification changes, high-quality printing, and recycling, they can be used as renewable materials. Resources, therefore, are used more and more widely. Adhesive is an essential material for corrugated box enterprises, and it is mainly used in the compounding process of face paper or cardboard. At present, starch glue is mainly used for the bonding of cardboard. However, this type of adhesive has weak cohesive force, poor compression resistance, moisture resistance and high temperature resistance, so the quality of the produced corrugated box products cannot be guaranteed. Co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J4/06C09J11/04C09J11/06C09J11/08C08G59/14C08B31/18
CPCC08B31/18C08G59/14C08G59/1438C08G59/1477C09J4/06C09J11/04C09J11/06C09J11/08
Inventor 杜威陶香君邢连成
Owner CHUZHOU CIGARETTE MATERIALS FACTORY
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