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Special putty for spray coating polyurea elastomer and preparation method thereof

A technology of putty and active diluent, applied in the direction of filling slurry, etc., can solve the problem of not being able to significantly improve the adhesion of substrates and special primers, and achieve the effect of good matching and improved adhesion

Active Publication Date: 2014-07-16
QINGDAO AIR NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a special putty for spraying polyurea elastomer and its preparation method to solve the problem that the above-mentioned existing putty cannot significantly improve the adhesion between the substrate and the special primer

Method used

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  • Special putty for spray coating polyurea elastomer and preparation method thereof
  • Special putty for spray coating polyurea elastomer and preparation method thereof
  • Special putty for spray coating polyurea elastomer and preparation method thereof

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preparation example Construction

[0035] The preparation method of putty of the present invention comprises the following steps:

[0036] 1) Preparation of component A

[0037] Add bisphenol A type epoxy resin, reactive diluent, diluent, and additives into the mixing tank according to the weight ratio, and disperse at a high speed for 15-30 minutes in the mixing tank, and the speed is controlled at 500-800r / min; then add silicon micropowder, Talc powder, heavy calcium, quartz powder, after each filler is added and stirred for 10-15 minutes, the next filler can be added. After all the addition is complete, stir for 20-30 minutes to obtain component A;

[0038] 2) Preparation of component B

[0039] Add 2 parts of curing agent and curing accelerator into the stirring tank according to the weight ratio and stir evenly to obtain component B;

[0040] When in use, components A and B are mixed and stirred uniformly according to a specific ratio to obtain the putty.

Embodiment 1

[0043] A special putty for spraying polyurea elastomer of the present embodiment, its preparation method comprises the following two steps:

[0044] (1) Preparation of component A

[0045] According to the weight ratio, add 40 parts of E51 epoxy resin, 5 parts of AGE, 10 parts of diluent, 1 part of dispersant, and 1 part of defoamer into the mixing tank, stir for 15-30min, and control the speed at 500-800r / min ; Then add 5 parts of silicon micropowder, 20 parts of talc powder, 50 parts of heavy calcium and 40 parts of quartz powder in turn. After each filler is added and stirred for 10-15 minutes, the next filler can be added. After all the addition is complete, stir for 20-30 minutes to obtain component A.

[0046] (2) Preparation of component B

[0047] According to the weight ratio, add 85 parts of D400 and 15 parts of AEP into the mixing tank, and stir evenly to obtain component B.

[0048] When in use, mix evenly according to the ratio of A:B to 8:1 by weight, and the ...

Embodiment 2

[0054] A special putty for spraying polyurea elastomer of the present embodiment, its preparation method comprises the following two steps:

[0055] (1) Preparation of component A

[0056] According to the weight ratio, add 30 parts of E44 epoxy resin, 10 parts of BGE, 10 parts of diluent, 2.0 parts of dispersant, and 1.0 part of defoamer into the mixing tank, stir for 15-30min, and control the speed at 500-800r / min ; Then add 15 parts of silicon micropowder, 20 parts of talc powder, 40 parts of heavy calcium, and 60 parts of quartz powder in sequence. After each filler is added and stirred for 10-15 minutes, the next filler can be added. After all the addition is complete, stir for 20-30 minutes to obtain component A.

[0057] (2) Preparation of component B

[0058] According to the weight ratio, add 90 parts of D230 and 10 parts of AEP into the mixing tank, and stir evenly to obtain component B.

[0059] When using, mix evenly according to the weight ratio A:B of 10:1, an...

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Abstract

The invention provides special putty for spray coating polyurea elastomer. The special putty comprises an A component and a B component, the weight ratio of the A component to the B component is (7-10):1; the component A is prepared from the following raw materials in parts by weight: 30-50 parts of bisphenol A type epoxy resin, 5-20 parts of active diluent, 1-2 parts of dispersing agent, 1-2 parts of defoaming agent, 5-10 parts of diluent, 5-15 parts of silica powder, 20-40 parts of talcum powder, 30-50 parts of ground calcium carbonate and 30-60 parts of quartz powder; the component B is prepared from the following raw materials in parts by weight: 70-90 parts of curing agent and 10-15 parts of curing accelerator. The invention further discloses a preparation method of the special putty for spray coating polyurea elastomer, and the adhesive force between a base material and base coat can be greatly improved.

Description

technical field [0001] The invention relates to the field of polyurea elastomer spraying, in particular to a special putty for spraying polyurea elastomer and a preparation method thereof. Background technique [0002] Spray polyurea elastomer is an environmentally friendly material developed in recent years with fast curing speed and fast construction. During the construction process, putty is usually first scraped and applied to level the concrete base material to seal the holes, pinholes and other defects on the surface of the base material. [0003] In order to improve the adhesion of polyurea to the substrate, the surface of the putty is usually coated with a special primer, which requires good adhesion between the putty and the concrete substrate and the special primer. At the same time, for Combined with the advantage of fast curing speed of sprayed polyurea materials, the curing and drying speed of the putty used must be fast to improve construction efficiency. The...

Claims

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Application Information

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IPC IPC(8): C09D5/34
Inventor 王伟王宝柱宋丹王桂刚李永岗
Owner QINGDAO AIR NEW MATERIALS
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