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Multifunctional bare concrete surface protection coating material and preparation method thereof

A clear-faced concrete and multi-functional technology, applied in the direction of coating, etc., can solve the problems of high requirements for oil-based fluorocarbon paint, easy to pollute the environment, and high cost, and achieve good low-temperature flexibility, good pollution resistance, and excellent weather resistance. Effect

Pending Publication Date: 2022-04-12
CCCC FOURTH HARBOR ENG INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, oil-based fluorocarbon paint has high requirements on construction conditions and supporting materials, high cost, and is easy to pollute the environment; water-based fluorocarbon paint has poor weather resistance, gloss retention and hardness.
[0005] In addition, in harsh environments such as harbor projects or areas with strong ultraviolet rays, roads and bridges are subject to sea breeze, sea salt erosion and sun exposure all year round. The coating will inevitably be polluted during outdoor use, and the increase in pollutants will directly affect the coating. Reflectivity and emissivity, which in turn affect the weather resistance of the coating

Method used

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  • Multifunctional bare concrete surface protection coating material and preparation method thereof
  • Multifunctional bare concrete surface protection coating material and preparation method thereof
  • Multifunctional bare concrete surface protection coating material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The present embodiment provides a kind of multifunctional fair-faced concrete surface protection coating material, and it comprises following raw material by weight: 33 parts of water-based fluorosilicon modified acrylic resins, 25 parts of spherical nano-aluminum phosphates, 1.5 parts of silane coupling agents, solid 15 parts of alkaline silica sol with a content of 30%, 2 parts of BYK-2015 water-based wetting and dispersing agent, 1.5 parts of Optiflim 400 water-based film-forming aid, 1 part of Tego810 water-based defoamer, 1.5 parts of RM-2020NPR water-based thickener , 1 part of BYK-348 water-based leveling agent, 20 parts of deionized water.

[0038] Its preparation process is as follows:

[0039] S1: Put the spherical nano-aluminum phosphate in an oven and dry at 140°C for 1 hour, dissolve the silane coupling agent KH-450 in 50% ethanol solution, stir evenly, add to the dried spherical nano-aluminum phosphate, and stir on a high-speed disperser And heated to a c...

Embodiment 2

[0044] The present embodiment provides a kind of multifunctional fair-faced concrete surface protection coating material, and it comprises following raw material by weight: 36 parts of water-based fluorosilicon modified acrylic resins, 27 parts of nano-zinc phosphates, 1.5 parts of silane coupling agents, solid content 13 parts of 30% alkaline silica sol, 2 parts of BYK-154 water-based wetting and dispersing agent, 1.75 parts of LOXANOL EFC 300 water-based coalescent, 0.5 parts of Dispelair CF 481 water-based defoamer, Cognis DSX 3551 water-based thickener 1.5 parts, Borchi Gel0625 water-based leveling agent 0.75 parts, deionized water 18 parts.

[0045] Its preparation process is as follows:

[0046] S1: Put nano-zinc phosphate in an oven and dry at 140°C for 1 hour, dissolve silane coupling agent KH-460 in 50% ethanol solution, stir evenly, add to dried nano-zinc phosphate, stir and heat on a high-speed disperser To a certain temperature, after the reaction, filter with suc...

Embodiment 3

[0051] The present embodiment provides a kind of multifunctional fair-faced concrete surface protection coating material, and it comprises following raw material by weight: 42 parts of water-based fluorosilicon modified acrylic resins, 32 parts of nano zirconium phosphates, 1.6 parts of silane coupling agents, solid content 12 parts of 40% alkaline silica sol, 1.5 parts of OROTAN 963 water-based wetting and dispersing agent, 2 parts of DAPRO FX 513 water-based film-forming aid, 0.75 parts of BYK-034 water-based defoamer, 0.75 parts of COAPUR 4435 water-based thickener , 1 part of ACRYSOLRM-2020NPR water-based leveling agent, 8 parts of deionized water.

[0052] Its preparation process is as follows:

[0053] S1: Put the nano-zirconium phosphate in an oven and dry at 140°C for 1 hour, dissolve the silane coupling agent KH-550 in 50% ethanol solution, stir evenly, add to the dried nano-zirconium phosphate, stir and heat on a high-speed disperser After reaching a certain tempera...

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Abstract

The invention discloses a multifunctional bare concrete surface protection coating material and a preparation method thereof. The coating material comprises the following components in parts by weight: 30-40 parts of water-based fluorosilicone modified acrylic resin, 20-30 parts of nano phosphate, 0.02-3 parts of a silane coupling agent, 10-20 parts of silica sol, 1-5 parts of a water-based wetting dispersant, 1-3 parts of a water-based coalescing agent, 0.5-1 part of a water-based defoaming agent, 1-3 parts of a water-based thickening agent, 0.5-1 part of a water-based leveling agent and 15-30 parts of deionized water. The preparation method comprises the following steps: modifying the nano phosphate, pulping, preparing a composite resin base material, and mixing the pulp and the composite resin base material to prepare the coating material. The water-based fluorosilicone modified acrylic resin is taken as a main raw material, and the nano phosphate is doped, so that when the water-based fluorosilicone modified acrylic resin is applied to the surface of bare concrete, the water-based fluorosilicone modified acrylic resin has super-hydrophobicity and a certain antifouling effect, meanwhile, passive radiation refrigeration is provided, the heat dissipation efficiency is improved, and the water-based fluorosilicone modified acrylic resin is simple in preparation method, convenient to operate and suitable for popularization and application.

Description

technical field [0001] The invention belongs to the field of protective materials for building materials, and in particular relates to a multifunctional fair-faced concrete surface protective coating material and a preparation method thereof. Background technique [0002] Fair-faced concrete, also known as decorative concrete, is formed by one-time pouring without any external decoration, and directly uses the natural surface effect of cast-in-place concrete as a finish. It has the characteristics of smooth surface, uniform color, sharp edges and corners, natural, solemn, etc. It is widely used in industrial and civil buildings, public buildings and bridges. [0003] With the application of fair-faced concrete more and more widely, its surface protection problem is also more and more prominent. In the construction stage, due to various factors such as formwork, release agent, concrete quality fluctuations, and concrete poured at different ages, it is inevitable that concret...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D7/62C09D7/61C09D7/20
Inventor 黎鹏平张志杰李安钟明锋范志宏孙健翔
Owner CCCC FOURTH HARBOR ENG INST
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