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A kind of transparent profile coating for sand wall-shaped architectural coating and preparation method thereof

A technology of architectural coatings and top coatings, applied in the direction of antifouling/underwater coatings, coatings, paints containing biocides, etc., can solve problems such as fading gloss and different gloss, achieve high stain resistance and avoid gloss Effects of blooming and excellent water-whitening resistance

Active Publication Date: 2022-05-24
固克节能科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The transparent profile coating prepared with an emulsion with a Tg higher than 50°C forms a rigid coating film with high hardness after film formation. During the drying process of the coating film, cracks are easily formed at the places where the stress concentration of the concave-convex interface is concentrated, which cannot be used for sand wall-shaped architectural coatings. play an effective protective role
[0006] For transparent profile coatings prepared from conventional emulsions, when the thickness of the coating film is inconsistent, the gloss is also different. The surface of the sand wall-shaped architectural coating has an uneven sandy texture. It is difficult for the transparent profile coating to form a coating with the same thickness. film, easy to form luster and blooming

Method used

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  • A kind of transparent profile coating for sand wall-shaped architectural coating and preparation method thereof
  • A kind of transparent profile coating for sand wall-shaped architectural coating and preparation method thereof
  • A kind of transparent profile coating for sand wall-shaped architectural coating and preparation method thereof

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Embodiment 1

[0034] A kind of transparent profile coating for sand wall architectural coatings, raw materials and quality ratios as shown in Table 1:

[0035]

[0036]

[0037] Table 1

[0038] Preparation method for transparent profile coating for sand wall architectural coatings, comprising the following steps;

[0039]S1: Add 50 parts of deionized water to the dispersion cylinder, at a speed of 350r / min, slowly add 1.2 parts antifreeze and 0.25 parts of low foaming wetting agent, disperse for 2min. Among them, the conductivity of deionized water ≤ 3 μS / cm (25 °C) as a dispersion medium for the preparation of transparent profile coatings. The antifreeze is made of 1,2-dihydroxypropane, the role of which is to make the prepared transparent surface coating meet the "low temperature stability" requirements in JG / T 24-2018. The low-foaming wetting agent uses an alkyl polyoxyethylene ether with an active substance content of 70% and a foaming < 10 mm (30 °C) (Waring-Blender method), which is ...

Embodiment 2

[0048] A kind of transparent profile coating for sand wall architectural coatings, raw materials and quality ratios as shown in Table 2:

[0049]

[0050] Table 2

[0051] Preparation method for transparent profile coating for sand wall architectural coatings, comprising the following steps;

[0052] S1: Add 50 parts of deionized water to the dispersion cylinder, at a speed of 350r / min, slowly add 1 part antifreeze and 0.2 parts of low foaming wetting agent in turn, disperse for 2min.

[0053] S2: After increasing the speed to 600r / min, add 0.1 parts of defoamer and 1.1 parts of alkali dissolved thickener in turn.

[0054] S3: Until the defoamer completely eliminates the bubbles generated by the addition of the wetting agent, slowly add 0.3 parts of pH adjuster, as the viscosity of the mixed liquid in the dispersion cylinder gradually increases, gradually increase the speed to 850r / min, continuously stir for 12min to ensure that the defoamer is fully dispersed and the thickener ...

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Abstract

The invention discloses a transparent profile coating for sand wall-shaped architectural coatings and a preparation method thereof, belonging to the field of water-based architectural coatings, and a transparent profile coating for sand wall-shaped architectural coatings. The raw materials of the transparent profile coating are based on quality The fraction includes the following components: Antifreeze: 1-1.2 parts, Low-foaming wetting agent: 0.2-0.25 parts, Defoamer: 0.1-0.15 parts, Alkali-swellable thickener: 1.1-1.2 parts, pH adjustment Agent: 0.3-0.35 parts, self-crosslinking emulsion: 11.5-12 parts, hybrid emulsion: 11.5-12 parts, film-forming aids: 2.8-3 parts, deionized water 69.9-71.2 parts. The transparent profile coating for sand wall-shaped architectural coatings of the invention and the preparation method thereof, the prepared transparent profile coating has high stain resistance and can effectively avoid glossy blooming.

Description

Technical field [0001] The present invention belongs to the field of waterborne architectural coatings, in particular to a transparent profile coating for sand wall architectural coatings and preparation methods thereof. Background [0002] On June 12, 2018, the Ministry of Housing and Urban-Rural Development issued a new standard "JG / T 24-2018 Synthetic Resin Emulsion Sand Wall Architectural Coatings" instead of "JG / T 24-2000 Synthetic Resin Emulsion Sand Wall Architectural Coatings", which was officially implemented on December 1, 2018. Compared with "JG / T 24-2000", the new standard adds technical requirements for transparent surface coatings, including a total of 10 technical items, which stipulates that the technical requirements for stain resistance ≤ 15%, and stipulates that the stain resistance test method is carried out in accordance with "GB / T 9780-2013 Architectural Coating Stain Resistance Test Method" in "5.4.1.3". [0003] "GB / T 9780-2013" stipulates two test methods...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D133/08C09D5/16C09D5/28C09D7/61C09D7/63C09D7/65
CPCC09D133/04C09D5/1687C09D5/1668C09D5/28C08L2201/10C08L2205/02C08L2205/035C08K2201/011C08L33/08C08L71/02C08L83/04C08K13/02C08K3/36C08K5/103C08K5/053C08K5/47
Inventor 陈燕吴银河汪斌陈团王锦雄
Owner 固克节能科技股份有限公司
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