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Environment-friendly Oxidation-resisting Carton Binder and Preparation Method therefor

a carton and anti-oxidation technology, applied in the field of adhesives, can solve the problems of poor bonding force and corrosion resistance of binders/adhesives prepared by using alkali paste methods and dextrin methods, even corroding packaging commodities, and polluting the environment, so as to overcome the problem of long-term use of discoloration, improve the oxidation resistance of colloids, and strengthen bonding strength

Active Publication Date: 2021-08-26
HONGSHENG TECH BEIJING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005]The present invention provides an environment-friendly anti-oxidation carton adhesive, which can solve the problems of weak adhesive force, easy mildewing under long-time placement.
[0027]The invention has the following advantages: (1) The formula system adopts a compounded antioxidant, effectively improves the oxidation resistance of the colloid, and overcomes the problem of long-term use of discoloration. (2) The compound antioxidant also overcomes the problem that the adhesive is prone to mildewing in a humid environment. And (3) the adhesive prepared by the present method is stronger in bonding strength, faster in curing and longer in storage period.

Problems solved by technology

However, the paper box adhered with silicate of soda is easy to absorb moisture and flood, the anti-calendering force and the degumming phenomenon of the box surface are destroyed, the packaged commodity is even corroded, and the environment is polluted.
The binders / adhesives prepared by using the alkali paste method and the dextrin method have poor bonding force and corrosion resistance.
The adhesives produced by the main body carrier method are only suitable for high-speed continuous machine production, the application range is limited.
However, inventors of the present invention found that the existing starch adhesives might also have the problems of weak adhesive force, easy mildewing under long-time placement and the like.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0029]A environment-friendly anti-oxidation carton adhesive comprises the following components in parts by weight: 100 parts of dry starch, 13 parts of p-aminophenol epoxy resin, 0.2 part of 30% hydrogen peroxide, 0.08 part of borax, 6 parts of sodium dicyandiamide, 36 parts of dimethyl carbonate, 100 parts of phthalic anhydride polyester polyol, 70 parts of polyethylene terephthalate, 65 parts of triethanolamine, 2 parts of an antioxidant, a proper amount of sodium hydroxide (adjusting the pH value), and a proper amount of sodium thiosulfate (removing the excess oxidant).

[0030]Hydrogen peroxide is used as the oxidant.

[0031]The antioxidant is a compound of hindered phenol (Hostanox O3), phosphite ester (Ultrnox 626) and sodium tripolyphosphate, and mass ratio of Hostanox O3:Ultrnox 626:sodium tripolyphosphate=1:2:0.3.

[0032]The preparation method of the environment-friendly anti-oxidation carton adhesive specifically comprises the following steps:

[0033](1) Preparing 100 g of corn dry...

example 2

[0038]The environment-friendly anti-oxidation carton adhesive comprises, by weight, 100 parts of dry starch, 15 parts of p-aminophenol epoxy resin, 0.5 part of 25% hydrogen peroxide, 0.1 part of borax, 6 parts of sodium dicyandiamide, 42 parts of dimethyl carbonate, 100 parts of phthalic anhydride polyester polyol, 70 parts of polyethylene terephthalate, 65 parts of triethanolamine, 2.5 parts of an antioxidant and a proper amount of sodium hydroxide (adjusting the pH value)), and a proper amount of sodium thiosulfate (the excess oxidant is reacted and removed).

[0039]Hydrogen peroxide is used as the oxidant.

[0040]The antioxidant is a compound of hindered phenol (Hostanox O3), phosphite (Ultrnox 626) and metal ion chelating agent sodium tripolyphosphate, and Hostanox O3:Ultranox 626:sodium tripolyphosphate=1:1:0.3.

[0041]The preparation method is the same as that in Example 1.

example 3

[0042]The environment-friendly anti-oxidation carton adhesive comprises, by weight, 100 parts of dry starch, 12 parts of p-aminophenol epoxy resin, 0.5 part of 30% hydrogen peroxide, 0.06 part of borax, 7 parts of sodium dicyandiamide, 35 parts of dimethyl carbonate, 110 parts of phthalic anhydride polyester polyol, 70 parts of polyethylene terephthalate, 55 parts of triethanolamine, 3 parts of an antioxidant, a proper amount of sodium hydroxide (adjusting the pH value), and a proper amount of sodium thiosulfate (removing the excess oxidant).

[0043]Hydrogen peroxide is used as the oxidant.

[0044]The antioxidant is a compound of hindered phenol (Hostanox O3), phosphite (Ultranox 626) and metal ion chelating agent sodium pyrophosphate, and Hostanox O3):Ultranox 626):sodium pyrophosphate=1:2:0.2.

[0045]The preparation method is the same as that in Example 1.

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Abstract

The invention belongs to the technical field of binders, and particularly relates to an environment-friendly anti-oxidation carton adhesive and a preparation method thereof. The adhesive comprises the following components: dry starch, p-aminophenol epoxy resin, hydrogen peroxide, borax, sodium dicyandiamide, dimethyl carbonate, phthalic anhydride polyester polyol, polyethylene terephthalate, triethanolamine and antioxidant. The anti-oxidant is a compound of hindered phenol, phosphite ester, and a metal ion chelating agent. The adhesive not only has high bonding strength, but also has the effects of non-discoloring, mildewing and the like when used for a long time.

Description

CROSS REFERENCE TO RELATED APPLICATION[0001]This application claims priority of Chinese Application No. 2019107594569 filed on Aug. 16, 2019 and entitled “Environment-friendly Oxidation-resisting Carton Binder and Preparation Method therefor”.TECHNICAL FIELD[0002]The present disclosure belongs to the technical field of adhesives, and particularly relates to an environment-friendly anti-oxidation carton adhesive and a preparation method therefor.BACKGROUND[0003]Silicate of soda is usually used as adhesives for the early-stage corrugated paper, and used for a carton factor in a long term due to the fact that the silicate of soda is fast in conjunctiva and low in price. However, the paper box adhered with silicate of soda is easy to absorb moisture and flood, the anti-calendering force and the degumming phenomenon of the box surface are destroyed, the packaged commodity is even corroded, and the environment is polluted. In the year of 1935, corn starch adhesive appeared in US by Stein ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C09J103/02
CPCC09J103/02C09J103/10C09J11/06C09J11/04C08L2201/08C08K2003/324C08K2003/387C08L63/00C08L67/00C08K3/38C08K3/32C08K5/527C08L67/02
Inventor DUAN, ZHONGDAYAN, JIAFEI
Owner HONGSHENG TECH BEIJING CO LTD
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