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Polyaspartate polyurea adhesive and preparation method thereof

A polyaspartate and adhesive technology, applied in the direction of adhesive additives, non-polymer adhesive additives, etc., can solve the problems of low bonding strength, chemical corrosion resistance and weather resistance, etc. Achieve the effect of low VOC content, excellent chemical resistance and cost reduction

Inactive Publication Date: 2015-04-29
SHENZHEN JIADA HIGH TECH IND DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, to provide a polyaspartic ester polyurea adhesive and a preparation method thereof, to overcome the low bonding strength, chemical corrosion resistance and weather resistance of the existing adhesive Weak technical issues

Method used

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  • Polyaspartate polyurea adhesive and preparation method thereof
  • Polyaspartate polyurea adhesive and preparation method thereof

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preparation example Construction

[0041] Correspondingly, the embodiment of the present invention also provides a preparation method of the above polyaspartate polyurea adhesive. This preparation method comprises the steps:

[0042] Step S01. The preparation method of component A includes the following steps: according to the ingredients and content in component A of the polyaspartic ester polyurea adhesive described above, each raw material is obtained respectively, and then the components are mixed. material handling;

[0043] Step S02. Obtain the B-component hexamethylene diisocyanate trimer;

[0044] Step S03. Separately package the prepared components A and B.

[0045]Specifically, in the above-mentioned step S01, each component of component A is as described above, and in order to save space, details are not repeated here.

[0046] Wherein, the polyaspartic ester polyurea can be prepared according to the above-mentioned preparation method of the polyaspartic ester polyurea. In one embodiment, when th...

Embodiment 1

[0058] A polyaspartic acid ester polyurea adhesive and a preparation method thereof. The polyaspartic ester polyurea adhesive includes A and B components separated from each other before use, and the A and B components are mixed according to the weight ratio of 4:1 during use; wherein,

[0059] The A component includes the following components by weight:

[0060] Polyaspartic ester polyurea 4.4 parts

[0061] Kaolin 2 parts

[0062] 2 parts heavy calcium carbonate

[0063] Defoamer 0.005 part

[0064] Leveling agent 0.005 parts;

[0065] The B component is: hexamethylene diisocyanate trimer.

[0066] Its preparation method technological process is as follows figure 1 As shown, it includes the following steps:

[0067] S11. Add diethyl maleate and 3,3-dimethyl-4,4-diaminodicyclohexylmethane in a weight ratio of 1.73:2.71 to the reactor, heat up to 60-80°C, and react under stirring After 72 hours, cool down to room temperature to obtain a reaction solution containing pol...

Embodiment 2

[0071] A polyaspartic acid ester polyurea adhesive and a preparation method thereof. The polyaspartic ester polyurea adhesive includes A and B components separated from each other before use, and the A and B components are mixed according to the weight ratio of 4:1 during use; wherein,

[0072] The A component includes the following components by weight:

[0073] Polyaspartic ester polyurea 4.6 parts

[0074] Kaolin 2 parts

[0075] 2.2 parts of 200 mesh fine sand

[0076] Defoamer 0.005 part

[0077] Leveling agent 0.005 parts;

[0078] The B component is: hexamethylene diisocyanate trimer.

[0079] Its preparation method technological process is as follows figure 1 As shown, it includes the following steps:

[0080] S21. Add diethyl maleate and 3,3-dimethyl-4,4-diaminodicyclohexylmethane in a weight ratio of 1.80:2.80 to the reactor, heat up to 60-80°C, and react under stirring After 72 hours, cool down to room temperature to obtain a reaction solution containing pol...

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Abstract

The invention discloses a polyaspartate polyurea adhesive and a preparation method thereof. The polyaspartate polyurea adhesive comprises a component A and a component B spaced from each other before being used, wherein the component A and the component B are mixed at a weight ratio of 4 to (1-1.05) when being used; the component A comprises the following components in parts by weight: 4.0-5.0 parts of polyaspartate polyurea, 4.0-4.50 parts of fillers, 0.005-0.01 parts of a defoamer and 0.005-0.01 parts of a leveling agent; the component B is hexamethylene diisocyanate trimer. According to the polyaspartate polyurea adhesive, the component A and the component B are mixed, so that the bonding strength in a bonding process is high and especially the bonding strength between the adhesive and a cement matrix is high; moreover, the adhesive has excellent performances of chemical corrosion resistance, water resistance, weather resistance, temperature resistance, low VOC (volatile organic compounds), environmental protection and the like.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a polyaspartic acid ester polyurea adhesive and a preparation method thereof. Background technique [0002] Adhesive bonding (gluing, bonding, cementing, gluing) refers to the technology of connecting the surfaces of homogeneous or heterogeneous objects with adhesives, which has the characteristics of continuous stress distribution, light weight, or sealing, and low temperature in most processes. . Gluing is especially suitable for the connection of different materials, different thicknesses, ultra-thin specifications and complex components. The failure experiments of the adhesive system show that there are four different situations when the adhesive fails: 1. Interface failure: the adhesive layer is completely separated from the surface of the sticky body (the adhesive interface is completely detached); 2. Cohesion failure: the failure occurs in the glue The adhesive or the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/02C09J11/04C08G18/64C08G73/00
Inventor 关有俊王永刚熊永强
Owner SHENZHEN JIADA HIGH TECH IND DEV
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