A kind of water base anti-alkali permeable floor coating and preparation method thereof

A permeable floor and water-based technology, applied in the field of coatings, to achieve the effects of tough paint film, excellent alkali resistance and weather resistance, environmental friendliness and safety

Active Publication Date: 2021-04-06
NANJING CHANGJIANG PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to solve the defects of the existing solvent-based permeable concrete coatings, and provide a water-based alkali-resistant and permeable floor coating that is more environmentally friendly, has excellent alkali resistance, and can improve the efflorescence of permeable concrete

Method used

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  • A kind of water base anti-alkali permeable floor coating and preparation method thereof
  • A kind of water base anti-alkali permeable floor coating and preparation method thereof
  • A kind of water base anti-alkali permeable floor coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Examples 1-4 prepared water-based alkali-resistant and permeable floor coatings, and Comparative Example 1 was a commercially available solvent-based permeable floor coating. In Comparative Example 2, the ratio of thickener ACRYSOL RM-2020 to TAFIGEL PUR40 is 1:2, and the others are the same as in Example 1. In comparative example 3, no inorganic anti-alkali auxiliary agent was added, and the others were the same as in Example 1.

[0052] Example 1

[0053] This embodiment provides a water-based anti-alkali and permeable floor coating, including two components A and B, wherein component A contains the following components accounting for the mass percentage of component A:

[0054] Components and dosages of component A in Table 1 Examples 1 to 4

[0055]

[0056]

[0057] Table 1-2 Composition and dosage of component A in comparative examples 1 to 3

[0058]

[0059]

[0060] Table 1-3 Components and dosages of component B in Examples 1 to 4 and Comparativ...

Embodiment 1～4 and comparative example 2～3

[0063] The preparation method of embodiment 1~4 and comparative example 2~3

[0064] The preparation of component A includes the following steps: first add 60% deionized water in component A to the paint mixing pot, add half of the dispersant and bactericide at a speed of 900r / min, disperse for 7 minutes, and Add the pigment at the speed of 2000r / min and disperse for 0.5 hours at the speed of 2000r / min, then add half of the defoamer and continue to disperse at the speed of 1500r / min for 5min and then stand for 0.5h, then grind it in a sand mill to fineness ≤20μm, get the resin-free water-based color paste, save it for later use;

[0065] Then add resin-free water-based color paste, hydroxyacrylic acid emulsion and 40% deionized water in Part A to the paint mixing pot, stir for 10 minutes at a speed of 1000r / min, and then add wetting agent at a speed of 800r / min , the remaining bactericide, the remaining defoamer, and inorganic anti-alkali additives, the test pH value is betwe...

Embodiment 1-4 and comparative example 2-3

[0070] The preparation method of embodiment 1-4 and comparative example 2-3

[0071] The preparation of component B includes the following steps:

[0072] In the mixing container, first add alcohol ether solvent; after mixing and stirring at a speed of 1000r / min for 0.5h, add a dehydrating agent, stir evenly and let stand for 30min;

[0073] Add water-based aliphatic isocyanate curing agent, mix and stir evenly at a speed of 600r / min, test the viscosity and non-volatile content, filter with 120-mesh silk cloth, and then obtain component B, and save it for later use.

[0074] The components A and B are mixed according to the weight ratio of 8:1, and after stirring evenly, the water-based alkali-resistant and permeable floor coating (Example 1) is obtained.

[0075] The components A and B are mixed according to the weight ratio of 5:1, and the water-based alkali-resistant and permeable floor coating (Example 2) is obtained after stirring evenly.

[0076] The components A and B...

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Abstract

The invention discloses a water-based anti-alkali and water-permeable floor coating and a preparation method thereof, belonging to the technical field of coatings. The material is composed of component A and component B. The component A is composed of hydroxyacrylic acid emulsion, deionized water, pigment, defoamer, wetting agent, dispersant, anti-sedimentation agent and inorganic anti-alkali additives. Component B is composed of water-based aliphatic isocyanate curing agent, alcohol ether solvent and dehydrating agent. The water-based alkali-resistant and permeable floor coating of the present invention effectively solves the problem that the color permeable floor is prone to "pan-alkali", and adopts a water-based coating system, which is environmentally friendly; in addition, it has high surface strength and prevents the falling of graded crushed stones , Easy production and so on.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a floor coating and a preparation method thereof, in particular to an environmentally friendly water-based alkali-resistant and water-permeable floor coating applied to the surface of permeable concrete and a preparation method thereof. Background technique [0002] Sponge city means that the city can be like a sponge and has good flexibility in adapting to environmental changes and responding to natural disasters: absorb water, store water, infiltrate water, purify water when it rains, and release and use the stored water when needed. The construction of sponge city follows the principle of ecological priority, combines natural ways with artificial measures, and under the premise of ensuring the safety of urban drainage and waterlogging, maximizes the accumulation, infiltration and purification of rainwater in urban areas, and promotes the utilization of rainwater re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D5/14C09D7/61C09D7/20C08G18/62
Inventor 王同赛张卫中
Owner NANJING CHANGJIANG PAINT
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