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Special adhesive for underwater construction and preparation method thereof

A technology for underwater construction and adhesives, applied in the direction of adhesives, adhesive additives, epoxy resin glue, etc., can solve problems such as poor water resistance, unsatisfactory effect, and poor initial adhesion

Inactive Publication Date: 2015-11-25
YANTAI DARBOND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, epoxy resin itself is a brittle material. Although it has been flexibly modified, the effect is not ideal. The concentrated performance is brittle, easy to crack, poor initial adhesion, and poor water resistance, so its application is greatly limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-7

[0042] 1) Preparation of component A:

[0043] The parts by weight are respectively 30 parts by weight, 35 parts, 40 parts, 45 parts, 50 parts, 55 parts, 60 parts of modified epoxy resin elastomer HyPoxRA840, 8 parts of xylene formaldehyde resin, 8 parts of nonylphenol, poly Add 12 parts of propylene glycol diglycidyl ether and 0.2 parts of surfactant TexaphorP63 into the double planetary power mixing mixer, and mechanically stir for 0.5 hours under the condition that the rotation speed is 500 rpm and the revolution speed is 15 rpm; then add 18 parts of quartz powder were mechanically stirred for 2.5 hours under the conditions of rotation speed of 800 rpm and revolution speed of 20 rpm, vacuumed to -0.08Mpa until the foam disappeared, and component A was obtained, packaged and placed for use;

[0044]2) Preparation of component B:

[0045] The preparation of the B component is as follows: 0 parts by weight of ketimine, 21 parts of phenalkamine, 33 parts of H-25 modified polya...

Embodiment 8-13

[0048] 1) Preparation of component A:

[0049] The parts by weight are respectively 5 parts, 10 parts, 15 parts, 20 parts, 25 parts, 30 parts of liquid petroleum resin, 24 parts of modified epoxy resin elastomer HyPoxDA323, 20 parts of NPER-133L, benzyl alcohol Add 6 parts, 11 parts of 1,4-butanediol diglycidyl ether, and 0.3 parts of surfactant TexaphorP64 into the double planetary power mixing mixer, under the condition that the rotation speed is 400 rpm and the revolution speed is 10 rpm Stir mechanically for 0.5 hours; then add 4 parts of corundum powder and 10 parts of aluminum hydroxide at a rotation speed of 600 rpm and a revolution speed of 15 rpm, mechanically stir for 2.5 hours, and then vacuumize to -0.08Mpa Until the foam disappears, component A is obtained, and the packaging is placed for use;

[0050] 2) Preparation of component B:

[0051] The preparation of the B component is as follows: 20 parts by weight of ketimine, 0 part of phenalkamine, 43 parts of H-15...

Embodiment 14-18

[0054] 1) Preparation of component A:

[0055] The parts by weight of modified epoxy resin elastomer NPER-133L count 44 parts, HyPoxDA323 counts 15 parts, alkylphenol-formaldehyde resin 2 parts, the weight parts of benzyl alcohol are respectively 2 parts, 4 parts, 6 parts, 8 parts, 10 parts, 4 parts of polypropylene glycol diglycidyl ether, and 0.2 parts of surfactant TexaphorP64 are added into the double planetary power mixing mixer, and the rotation speed is 700 revolutions per minute, and the revolution speed is 20 revolutions per minute. hour; then add 10 parts of aluminum hydroxide powder and 5 parts of quartz powder at a rotation speed of 900 rpm and a revolution speed of 25 rpm, mechanically stir for 2.5 hours, vacuumize to -0.08Mpa until the foam disappears, Obtain component A, pack and place for use;

[0056] 2) Preparation of component B:

[0057] The preparation of the B component is as follows: 50 parts by weight of ketimine, 5 parts of phenalkamine, 65 parts of ...

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Abstract

The invention discloses a special adhesive for underwater construction, which is composed of component A and component B with a weight ratio of 100:20 to 100:25; the component A is composed of the following raw materials in parts by weight: 30-60 parts of permanent epoxy resin, 5-30 parts of tackifier, 2-10 parts of accelerator, 5-15 parts of reactive diluent, 0.1-0.3 parts of surfactant, 10-35 parts of filler powder; the B The components are composed of the following raw materials in parts by weight: 0-60 parts of ketimine, 0-60 parts of phenalkamine, 30-65 parts of modified polyamide, 1-6 parts of curing accelerator, and 2-15 parts of water repellent . The special adhesive for underwater construction prepared by the invention has the advantages of high bonding strength in water, good toughness, water resistance, chemical corrosion resistance, strong initial adhesion, etc., and is convenient for construction, bringing great improvement to the field of underwater construction.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a special adhesive for underwater construction and a preparation method thereof. Sanitary drinking water tanks, ship repairing, shipbuilding and many other fields meet the requirements of underwater construction. Background technique [0002] Adhesives have been widely used in various fields of national economic construction, and the scope of use is getting wider and wider, and the application conditions are getting wider and wider. Usually, in order to ensure the success of bonding, the surface of the adhered object is required to be clean, dry, and pollution-free. However, in water conservancy projects and environmental governance projects, there is often a large amount of water in the construction environment, and the general requirements for underwater cementing adhesives It can be effectively bonded and cured underwater. In addition, the repair of underground concrete fac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J163/00C09J11/06C09J11/04
Inventor 姜贵琳王建斌陈田安解海华
Owner YANTAI DARBOND TECH
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