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Paper starch adhesive and preparation method thereof

A starch adhesive and adhesive technology, applied in the directions of starch-derived adhesives, adhesive types, non-polymer adhesive additives, etc., can solve the problems of difficult penetration and poor adhesion of starch adhesives , to achieve fast drying, improve initial viscosity, and good compoundability.

Active Publication Date: 2011-02-09
山东荣工建筑工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, some paper products have higher requirements on the permeability of the adhesive. For example, after the domestic high-strength corrugated base paper has been improved by the double-sided sizing process, the existing starch adhesive is difficult to penetrate, resulting in poor adhesion, while the existing technology The quality of the starch binder in this aspect has been improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1: Special adhesive for single facer of cardboard production line.

[0020] Reference formula: 100 parts of corn starch, 600 parts of water, 10 parts of caustic soda, 0.1 parts of potassium monopersulfate, 1.2 parts of sodium sulfite, 5 parts of epichlorohydrin, 1.5 parts of boric acid, 0.5 parts of fatty acid sodium, 4 parts of light calcium carbonate , 5 parts of bridging agent.

[0021] Preparation method embodiment 1:

[0022] 1. Add about 550 parts of water to the reactor and heat to 38°C, add 100 parts of starch under stirring, stir evenly, dilute 0.1 part of potassium monopersulfate into a solution with a small amount of water, and add in two parts , With an interval of 10 minutes, then stir and react for 20 minutes;

[0023] 2. Dilute the caustic soda according to 1:5 (weight ratio) (50 parts of caustic soda and 10 parts of caustic soda). Slowly add it into the reaction kettle twice, with an interval of 10 minutes, and then stir for about 20 minutes to make it...

Embodiment 2

[0026] Example 2: Special adhesive for double-sided machine of cardboard production line

[0027] Reference formula: 100 parts of corn starch, 400 parts of water, 7 parts of caustic soda, 0.15 parts of potassium monopersulfate, 1.2 parts of sodium sulfite, 2.65 parts of epichlorohydrin, 0.75 parts of stabilizer, 0.72 parts of fatty acid sodium, 4.5 parts of light calcium carbonate Parts, 3.3 parts of bridging agent.

[0028] Preparation method embodiment 2:

[0029] 1. Add about 365 parts of water to the reaction kettle and raise the temperature to 38°C. Add 100 parts of starch under stirring, stir evenly, dilute 0.15 parts of potassium monopersulfate into a solution with a small amount of water, and add in two parts , With an interval of 10 minutes, then stir and react for 20 minutes;

[0030] 2. Dilute the caustic soda according to 1:5 (weight ratio) (including 35 parts of caustic soda and 7 parts of caustic soda). Slowly add it into the reaction kettle twice with 10 minutes inter...

Embodiment 3

[0033] Example 3: Special adhesive for paper laminating machine

[0034] Reference formula: 100 parts of corn starch, 300 parts of water, 5 parts of caustic soda, 0.3 parts of potassium monopersulfate, 3 parts of sodium sulfite, 1.1 parts of epichlorohydrin, 0.5 parts of stabilizer, 1 part of fatty acid sodium, light calcium carbonate 6 Parts and 4.3 parts of bridging agent.

[0035] Preparation method embodiment 3:

[0036] 1. Add about 275 parts of water to the reaction kettle and raise the temperature to 38°C, add 100 parts of starch under stirring, stir evenly, dilute 0.3 parts of potassium monopersulfate into a solution with a small amount of water, and add in two parts , With an interval of 10 minutes, then stir and react for 20 minutes;

[0037] 2. Dilute the caustic soda according to 1:5 (weight ratio) (25 parts of caustic soda and 5 parts of caustic soda). Slowly add it into the reaction kettle twice, with an interval of 10 minutes, and then stir for about 20 minutes to mak...

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Abstract

The invention discloses a paper starch adhesive and a preparation method thereof. The paper starch adhesive comprises the following components in part by weight: 100 parts of starch, 300 to 600 parts of water, 0.1 to 0.3 part of potassium hydrogen peroxymonosulfate, 5 to 10 parts of caustic soda, 1 to 5 parts of epoxy chloropropane, 0.5 to 1.5 parts of boric acid, 1 to 3 parts of sodium sulfite, 4 to 8 parts of light calcium carbonate and 2.5 to 5 parts of bridging agent. The preparation method comprises the following steps of: adding water into a reaction kettle, heating the water to 38 DEG C, adding the starch into the water, stirring the solution, adding potassium hydrogen peroxymonosulfate solution into the reaction kettle, and reacting the mixed solution for 20 minutes with stirring; diluting the caustic soda, then slowly adding the caustic soda into the reaction kettle twice, stirring the solution for about 20 minutes to form milk white or light yellow transparent colloid, then adding the boric acid, the bridging agent and the light calcium carbonate into the colloid, and stirring the mixture uniformly; and adding the epoxy chloropropane, sodium aliphatate and the sodium sulfite into the reaction kettle with stirring, and stirring the mixture uniformly to obtain the paper starch adhesive. The adhesive has the characteristics of stable viscosity, good adhesiveness, low comprehensive cost, good permeability and the like.

Description

Technical field [0001] The invention relates to the technical field of starch adhesives, in particular to a starch adhesive used for paper products, including adhesives for corrugated board production lines, adhesives for paper mounting, and adhesives for carton or cardboard bonding, and a preparation method thereof. Background technique [0002] There are many types of adhesives for paper bonding in my country. Among them, starch adhesives are environmentally friendly, low in raw material prices, and simple in production processes. They can replace some chemical adhesives such as polyvinyl alcohol and white latex. However, the composition and technology of the existing starch adhesives are not reasonable enough, such as its comprehensive properties such as adhesion, stability, quick-drying, and resistance to water, need to be further improved and perfected. At present, in the production process of starch adhesives, it is usually necessary to add oxidants to modify, so that it ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J103/04C09J11/06C09J11/04C09J103/10
Inventor 李彭王小华蒋建平陈新赵素芬万达
Owner 山东荣工建筑工程有限公司
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