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Imitation fair-faced concrete coating and preparation method thereof

A technology for imitating fair-faced concrete and paint, applied in the field of imitation fair-faced concrete paint and its preparation, and architectural decorative paint, which can solve the problems of high paint construction requirements and the inability to reproduce cement gray visual effects

Active Publication Date: 2021-09-10
苏州大乘环保新材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the requirements for paint construction are high, and there are extremely high requirements for paint ratio control, scraping thickness during construction, and covering properties of the bottom layer, otherwise the gray visual effect of cement cannot be reproduced;
[0009] 3) Phthalocyanine pigments mostly exist in the form of complexes formed between phthalocyanine and metals such as copper, cobalt, and nickel. There are certain environmental and health risks when introducing heavy metals such as copper into coatings.

Method used

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  • Imitation fair-faced concrete coating and preparation method thereof
  • Imitation fair-faced concrete coating and preparation method thereof
  • Imitation fair-faced concrete coating and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0072] 1) Preparation of gray colorant A, refer to figure 1 , including the following steps:

[0073] P1. Dissolve 10kg of dry polylactic acid in 50kg of tetrahydrofuran, add 5kg of dry cement powder, and disperse it ultrasonically for 15 minutes to obtain a uniform suspension; the cement used is P.O42.5R Portland cement; among them, tetrahydrofuran Organic solvents such as acetone and ethyl acetate can also be used instead;

[0074] P2. Spray and granulate the suspension obtained in step P1 at 100°C to obtain coarse colored particles;

[0075] P3. Grinding the coarse colored particles obtained in step P2, and passing through a 60-mesh sieve to obtain gray colorant A.

[0076] 2) Preparation of gray colorant B, refer to figure 1 , including the following steps:

[0077] P1. Dissolve 10kg of dry polylactic acid in 50kg of tetrahydrofuran, add 5kg of dry cement powder, and disperse ultrasonically for 20 minutes to obtain a uniform suspension; among them, tetrahydrofuran can ...

Embodiment 1

[0086] A kind of imitation fair-faced concrete paint, comprises A component, B component and C component, refer to image 3 Shown technological process prepares and obtains:

[0087] The preparation of component A includes the following steps:

[0088] S1. Add 0.5kg of hydroxyethyl cellulose ether, 3kg of silane coupling agent A-1100, and 0.5kg of silicone defoamer D-10X into 25kg of deionized water, and stir evenly;

[0089] S2. Continue to add 5 kg of acrylic functionalized silicone prepolymer Silmer ACRD208, 40 kg of acrylic polymer emulsion, and 1 kg of flame retardant A to the mixture in step S1 and stir to disperse evenly; the acrylic polymer emulsion is prepared by Pure acrylic elastic emulsion PRIMAL™AC-855 and acrylic polymer emulsion APR-968LO are mixed at a mass ratio of 0.4:1;

[0090] S3. Add 1 kg of gray colorant A, 1 kg of silica and 1 kg of fumed silica QS-20 to the mixture in step S2 and stir evenly to obtain component A;

[0091] Component B is an amine cu...

Embodiment 2

[0095] A kind of imitation fair-faced concrete paint, comprises A component, B component and C component, refer to image 3 Shown technological process prepares and obtains:

[0096] The preparation of component A includes the following steps:

[0097] S1. Add 0.6kg of hydroxyethyl cellulose ether, 4kg of silane coupling agent A-1100, and 0.6kg of silicone defoamer D-10X into 28kg of deionized water, and stir evenly;

[0098] S2. Continue to add 6kg of acrylic functionalized silicone prepolymer Silmer ACRD208, 45kg of acrylic polymer emulsion, and 2kg of flame retardant A to the mixture in step S1, stir and disperse evenly; the acrylic polymer emulsion is prepared by Pure acrylic elastic emulsion PRIMAL™AC-855 and acrylic polymer emulsion APR-968LO are mixed at a mass ratio of 0.5:1;

[0099] S3. Add 2kg of gray colorant A, 2kg of silica and 2kg of fumed silica QS-20 to the mixture in step S2 and stir evenly to obtain component A;

[0100] Component B is an amine curing age...

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Abstract

The invention discloses a paint for imitating fair-faced concrete, the main point of which is to include components A, B and C; the component A includes, in parts by weight: 40-50 parts of acrylic polymer emulsion, 5-10 parts of functional additives, 0.5-1 parts of hydroxyethyl cellulose ether, 1-3 parts of gray colorant, 1-5 parts of covering agent, 1-3 parts of anti-settling agent, 3-5 parts of coupling agent , 1-3 parts of flame retardant, 0.5-0.8 parts of defoamer, 25-35 parts of deionized water; component B is curing agent; component C is a mixture of EPDM powder and EPS particles; before use, according to the mass ratio 100: (4-6): (40-50) Mix component A, component B and component C, and then apply it to the construction base. The coating has the advantage of convenient construction. The preferred scheme is mixed with gray colorant prepared from cement and polylactic acid as the main raw materials. It does not contain toxic dyes, is more environmentally friendly and greatly reduces the difficulty of construction operations, making it easy to reproduce the decorative effect of fair-faced concrete . The invention also correspondingly discloses the preparation method of the above-mentioned imitation fair-faced concrete paint.

Description

technical field [0001] The invention relates to the technical field of building decoration coatings, more specifically, it relates to a kind of imitation fair-faced concrete coating and the technical field of preparation thereof. Background technique [0002] Fair-faced concrete is also called decorative concrete because of its great decorative effect. After the concrete is poured, there is no longer any coating, tiles, stones and other materials, and it has a simple and industrial-style decorative effect. However, since the surface of clear-water concrete is basically no longer coated with other materials, the wall body decorated with clear-water concrete is extremely prone to dusting during use. [0003] In order to solve the problem of fair-faced concrete ash, the existing solution mainly contains the following two kinds: [0004] 1. Spraying a transparent waterproof protective film on the surface of fair-faced concrete increases the construction cost, and issues such a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B111/28C04B111/52
CPCC04B28/04C04B2111/00508C04B2111/28C04B2111/52C04B2201/32C04B24/383C04B24/285C04B24/16C04B24/003C04B24/02C04B18/22C04B24/26C04B24/121C04B24/42C04B2103/54C04B14/06C04B14/305
Inventor 吴洪浪张尊杰单秀军张福恒张越
Owner 苏州大乘环保新材有限公司