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High-strength moisture-proof starch glue and preparation method and application method thereof

An application method and technology of starch glue, applied in the directions of starch adhesives, chemical instruments and methods, polymer adhesive additives, etc., can solve the problem that related products cannot be used normally, starch glue and products are debonded, and starch glue is not water-resistant. and other problems, to achieve the effect of convenient application, good binding force and good moisture resistance

Active Publication Date: 2015-03-25
广东省汇林包装科技集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional starch adhesives, due to the limitations of the structure itself, starch glue is not water-resistant, and its binding force will drop sharply in a humid environment. After drying, the starch glue and the product will be debonded, resulting in related products that cannot be used normally.

Method used

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  • High-strength moisture-proof starch glue and preparation method and application method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] A kind of high-strength moisture-proof starch glue of the present embodiment is made up of the following raw materials of weight part:

[0060] Cornstarch 100g

[0061] Phenolic oligomer 8g

[0062] Polylactic acid 2g

[0063] Borax 1g

[0064] Nickel sulfate hexahydrate 0.5g

[0065] Sodium peroxide 8g

[0066] Tributyl Phosphate 1g

[0067] 25g of water.

[0068]Add 80% of the total water to the starch and stir evenly, then add sodium peroxide and nickel sulfate during the stirring process, and when it becomes translucent, add borax. Before adding, borax should be dissolved in 20% of the total water, and the water temperature should be 80°C. After stirring evenly, add phenolic oligomer, polylactic acid and tributyl phosphate in turn, and let it stand for 0.5-1.5 hours to obtain high-strength Moisture-proof starch glue.

[0069] Spread the prepared starch glue on the corrugated medium paper to bond the surface paper and the core paper, then apply a pressure of ...

Embodiment 2

[0071] A kind of high-strength moisture-proof starch glue of the present embodiment is made up of the following raw materials of weight part:

[0072] Cornstarch 100g

[0073] Phenolic oligomer 15g

[0074] Polylactic acid 8g

[0075] Borax 2g

[0076] Nickel sulfate hexahydrate 1g

[0077] Sodium peroxide 10g

[0078] Tributyl Phosphate 2g

[0079] 250g of water.

[0080] Add 70% of the total water to the starch and stir evenly, then add sodium peroxide and nickel sulfate during the stirring process, and add borax when it becomes translucent. Before adding, borax is first dissolved in 30% of the total water, the water temperature is 60°C, after stirring evenly, add phenolic oligomer, polylactic acid and tributyl phosphate in turn, and let it stand for 0.5h to obtain high-strength moisture-proof starch glue.

[0081] Apply the prepared starch glue on the corrugated medium paper to bond the surface paper and the core paper, then apply a pressure of 0.4 MPa to it, and pl...

Embodiment 3

[0083] A kind of high-strength moisture-proof starch glue of the present embodiment is made up of the following raw materials of weight part:

[0084] Cornstarch 100g

[0085] Phenolic oligomer 10 g

[0086] Polylactic acid 5 g

[0087] Borax 0.8 g

[0088] Nickel sulfate hexahydrate 2 g

[0089] Sodium peroxide 3 g

[0090] Tributyl phosphate 3 g

[0091] 200 g of water.

[0092] Add 75% of the total water to the starch and stir evenly, then add sodium peroxide and nickel sulfate during the stirring process, and add borax when it becomes translucent. Before adding, borax was first dissolved in 25% of the total water in water at a temperature of 75°C. After stirring evenly, phenolic oligomers, polylactic acid and tributyl phosphate were added in sequence, and stood for 1 hour to obtain high-strength moisture-proof starch glue. .

[0093] Spread the prepared starch glue on the corrugated medium paper to bond the surface paper and the core paper, then apply a pressure of...

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Abstract

The invention relates to the technical field of adhesives, particularly to a high-strength moisture-proof starch glue and a preparation method and application method thereof. The high-strength moisture-proof starch glue is composed of the raw materials including, by weight part, 100 parts of corn starch, 4-20 parts of phenolic oligomer, 2-10 parts of polylactic acid, 0.5-3 parts of borax, 0.5-5 parts of nickel sulfate hexahydrate, 2-15 parts of sodium peroxide, 1-5 parts of tributyl phosphate and 200-300 parts of water. The h high-strength moisture-proof starch glue is high in bonding strength in humid environments, product bonding stability and moisture-proofness, has anti-mildew effects and avoids environmental pollution when degraded. The preparation method of the h high-strength moisture-proof starch glue is simple and convenient to apply.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a high-strength moisture-proof starch glue, a preparation method and an application method thereof. Background technique [0002] For many years, water glass has been commonly used as an adhesive for corrugated paper in my country. However, due to the high content of sodium hydroxide in the water glass and its high alkalinity, it is easy to absorb water, which will cause the carton to be damp and even corrode the items in the box. Later, starch glue was used instead of water glass. Because starch glue does not absorb water and is not easy to get damp, it is suitable as an adhesive for corrugated boxes. [0003] Due to the limitations of the structure of traditional starch adhesives, starch glue is not water-resistant, and its binding force will drop sharply in a humid environment. After drying, the starch glue and the product will be debonded, resulting in related products tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J103/02C09J11/08C09J11/06C09J11/04B32B37/12
Inventor 蒋海云张维莉袁志庆滑广军夏湘堰
Owner 广东省汇林包装科技集团有限公司
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