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A kind of waterproof and acid-resistant coating and its preparation method and application

An acid-resistant coating and acrylic resin technology, applied in the coating field, can solve problems such as affecting the protection of the coating to concrete, the surface coating being inflexible, and accelerating the aging and failure of the concrete.

Active Publication Date: 2015-11-18
珠海展辰新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, ordinary surface coatings are inelastic, and the primer and intermediate coatings are also inelastic. The coating will crack during the process of thermal expansion and contraction of concrete, which will affect the protection of the coating on the concrete. At the same time, due to various factors in the atmospheric environment Ordinary surface coatings are also prone to permeate some water and other acidic substances, thus accelerating the premature aging and failure of concrete

Method used

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  • A kind of waterproof and acid-resistant coating and its preparation method and application
  • A kind of waterproof and acid-resistant coating and its preparation method and application
  • A kind of waterproof and acid-resistant coating and its preparation method and application

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preparation example Construction

[0052] Correspondingly, the embodiment of the present invention also provides a preparation method of the above-mentioned two-component waterproof and acid-resistant coating, including the following steps:

[0053] S01. According to the formula of the above-mentioned two-component waterproof and acid-resistant coating, weigh the components in component A and component B respectively;

[0054] S02. First mix the above-mentioned acrylic resin, hydrophobic silicone resin and the first organic solvent, add the above-mentioned coupling agent, anti-sedimentation agent, defoamer, and dispersant during stirring and mixing, and then add basic filler Continue to mix with colored pigments and fillers to obtain the above-mentioned component A;

[0055] S03. Stir and mix the above-mentioned polyurethane curing agent with the second organic solvent to obtain the above-mentioned component B;

[0056] S04. Pack components A and B separately to obtain a two-component waterproof and acid-resis...

Embodiment 1～2

[0063] The specific components by weight of each two-component waterproof and acid-resistant coating in Examples 1-2 are shown in Table 1 below, wherein the preparation methods of each two-component waterproof and acid-resistant coating in Examples 1-2 are the same, and all include the following steps:

[0064] S01. according to the formula of each two-component waterproof and acid-resistant coating of embodiment 1 and 2 in the following table 1, weigh the components of component A and component B respectively;

[0065] S02. First add the weighed acrylic resin, hydrophobic silicone resin, and the first organic solvent and stir at a medium speed. During the stirring process, add coupling agent, anti-settling agent, defoamer, and dispersant to disperse evenly. The dispersion time is about 10 minutes; then add wollastonite, barium sulfate, titanium dioxide and calcium oxide, disperse at high speed for about 20 minutes, and the dispersion line speed is 1400m / min; then reduce the di...

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Abstract

The invention discloses two-component waterproof acid-proof paint as well as a preparation method and an application thereof. The two-component waterproof acid-proof paint is composed of a component A and a component B, wherein the component A comprises the following components in parts by weight: 30-40 parts of acrylic resin, 5-10 parts of hydrophobic organic silicon resin, 5-9 parts of alkaline filler, 1-3 parts of coupling agent, 0.5-1 part of anti-settling agent, 0.1-0.3 part of defoaming agent, 0.5-1.0 part of dispersing agent, 15-25 parts of colouring pigment filler and 20-25 parts of first organic solvent, the component B comprises the following components in parts by weight: 20-24 parts of polyurethane curing agent and 9-11 part of second organic solvent. The two-component waterproof acid-proof paint has good low temperature malleability and low water absorption, can effectively absorb acidic materials and has an effect of preventing concrete from being in ageing failure too fast when being coated on the surface of the concrete.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a waterproof and acid-resistant coating as well as its preparation method and application. Background technique [0002] Concrete is the most widely used and used building material in modern society, but if it is exposed to the natural environment for a long time, it will age or even be damaged due to various factors. At present, some concrete engineering projects mainly improve the performance of concrete itself, standardize the construction and maintenance of concrete, and prolong the service life of concrete by constructing surface protective coatings. [0003] There are mainly two types of materials for surface protection coatings: one is silicone-based silane-impregnated materials, and the other is organic coatings with a certain film thickness. The former type of material is mainly used in the protection of marine underwater concrete, which is expensive, difficult to construct, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D7/12C04B41/49
Inventor 邹建明陈寿生
Owner 珠海展辰新材料股份有限公司
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