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Adhesive composition

A composition and adhesive technology, applied in the directions of adhesives, non-polymer adhesive additives, non-polymer organic compound adhesives, etc., can solve problems such as refractory degradation, unusable adhesives, environmental pollution, etc. achieve the effect of easy degradation

Inactive Publication Date: 2013-06-26
汕头市新侨药用防粘纸科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to achieve a certain bonding strength, the commonly used adhesives have a relatively long curing time, and it takes a period of time to obtain bonded items.
In addition, commonly used adhesives generally contain organic solvents. Although most of the organic solvents evaporate during curing, some inevitably remain on the bonded items, and most of the organic solvents are harmful to the human body. Harmful, so these adhesives cannot be used on food, medical materials
Furthermore, most adhesives form high molecular weight polymers after curing, and these high molecular weight polymers are difficult to degrade when the bonded items are scrapped and discarded, causing environmental pollution

Method used

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Examples

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Comparison scheme
Effect test

Embodiment 1-4 and comparative Embodiment 1

[0025] According to the formula in Table 1, add components a), b) and c) into the mixing device respectively, and then stir at a temperature of 50°C to make the mixture evenly mixed. The stirring speed is 3000 rpm, which can be A series of adhesive compositions of the invention was obtained.

[0026] Table 1:

[0027]

[0028] The adhesive compositions obtained in Examples 1-4 and Comparative Example 1 were used to bond food packaging boxes, and the bonding time and bonding strength were measured, and the results are shown in Table 2. The bonding time refers to the time point when the adhesive is just applied to the food packaging box, and the time point when the applied adhesive is completely solidified from liquid to solid, and the unit is seconds . Adhesive strength refers to the tensile force that pulls the bonding surface per unit area apart, and the unit is MPa.

[0029] Table 2:

[0030]

[0031] It can be seen from Table 2 that the adhesive compositions of Ex...

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Abstract

The invention relates to an adhesive composition. The adhesive composition comprises at least one single-alpha-cyanoacrylate (a), at least one dual-alpha-cyanoacrylate glycol or dual-alpha- cyanoacrylate diamide (b) and at least one additive (c). The adhesive composition can be rapidly cured, does not contain organic solvents and can be used for food packaging, lunch boxes, bioengineering materials and medical adhesives; and curing products can be degraded and is non-toxic.

Description

Technical field: [0001] The invention relates to an adhesive composition, in particular to an adhesive composition that can be cured rapidly, does not contain organic solvents, and the cured product is degradable and nontoxic. Background technique: [0002] Adhesives are a common chemical used to bond things together. Adhesives are used in many fields, such as packaging, computer fields, etc. However, in order to achieve a certain bonding strength, the commonly used adhesives have a relatively long curing time, and need to wait for a period of time to obtain a bonded article. In addition, commonly used adhesives generally contain organic solvents. Although most of the organic solvents are volatilized during curing, some inevitably remain on the bonded items, and most of the organic solvents are harmful to the human body. Harmful, so these adhesives cannot be used on food and medical materials. Furthermore, most adhesives form high-molecular-weight polymers after curing, a...

Claims

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Application Information

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IPC IPC(8): C09J4/04C09J4/02C09J11/04
Inventor 傅酉付玉生
Owner 汕头市新侨药用防粘纸科技有限公司
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