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Preparation method of delustering agent for UV (ultraviolet) curing coating

A technology for curing coatings and matting agents, applied in coatings and other directions, can solve the problems that matting agents cannot meet the needs of UV curing coatings, and achieve excellent matting performance, small viscosity changes, and low viscosity effects

Active Publication Date: 2015-03-04
北京航天赛德科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It can be seen that the matting agent produced by the above preparation method cannot meet the needs of UV curing coatings, and needs to be further improved urgently.

Method used

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  • Preparation method of delustering agent for UV (ultraviolet) curing coating
  • Preparation method of delustering agent for UV (ultraviolet) curing coating
  • Preparation method of delustering agent for UV (ultraviolet) curing coating

Examples

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Effect test

preparation example Construction

[0032] The method for preparing a matting agent for UV curing coatings of the present invention includes:

[0033] (1) Raw materials:

[0034] Raw material A: an inorganic acid solution with a mass ratio of 5-40%; preferably an inorganic acid solution with a mass ratio of 10-15%; among them, the inorganic acid can be sulfuric acid or hydrochloric acid, or other inorganic acids that can achieve the effects of the present invention, such as Nitric acid etc.

[0035] Raw material B: an alkali metal inorganic silicate solution with a mass ratio of 5-50%; preferably an alkali metal inorganic silicate solution with a mass ratio of 15-20%, wherein the alkali metal inorganic silicate can be sodium silicate, Or potassium silicate, potassium sodium silicate, lithium silicate and quaternary ammonium silicate can obtain products with the same effect.

[0036] Raw material C: the wax emulsion required for the final product; wherein, the wax emulsion includes any conventional wax dispersed in wate...

Embodiment 1-10

[0049] Add raw material A (take sulfuric acid as an example) into the reaction vessel, keep stirring, heat the raw material B (take sodium silicate as an example), and control the temperature at 75~80℃. Use a CN102476802A mixer and 60-90% Raw material C is mixed and added to the reaction vessel, the pH value of the reaction material is controlled at 2.5-3.5; the stirring is heated to 95-100°C, and the temperature is kept for 1-2 hours; the crude product is obtained after washing and drying; the 10- 40% of the raw material C is atomized, thoroughly mixed with the crude product at 92-100°C and kept for 1-6 hours, and ultrafinely pulverized to an average particle size of 3-5μm. By changing reaction conditions, etc., products of different examples were obtained.

[0050]

[0051]

[0052] Test data BET100~250cm 2 / g; DBP absorption value 0.4~2.2g / g; ignition loss 22~24%.

[0053] Example

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Abstract

The invention discloses a preparation method of a delustering agent for a UV (ultraviolet) curing coating. The preparation method comprises the steps of firstly adding 5-40% by mass of inorganic acid solution to a reactor while stirring; heating 5-50% by mass of alkali metal inorganic silicate solution, then adding the alkali metal inorganic silicate solution and 60-90 parts of wax emulsion required by an end product to the reactor simultaneously, and controlling the pH value to be 0.5-5.5; heating to 95-100 DEG C while stirring, preserving heat for 0.5-4 hours, and aging; washing and spray-drying the aged material to obtain a crude product; atomizing 10-40 parts of remaining wax emulsion, fully mixing the wax emulsion with the crude product at 92-100 DEG C, and preserving heat for 1-6 hours; carrying out ultrafine grinding on the uniformly mixed material until the mean grain size is 3-5mu m, wherein the loss on ignition of the end product is 22-24%. The delustering agent prepared by the method has uniform grain size, stable pore structure and stable quality, has excellent delustering performance when used in the UV curing coating, has little effect of changing the viscosity of a UV coating system, and is beneficial to film formation of the coating.

Description

Technical field [0001] The invention relates to the field of matting agents, in particular to a method for preparing matting agents for UV curing coatings. Background technique [0002] Because of its environmental protection, fast curing speed and excellent physical and chemical properties of the coating film, UV curing coatings are more and more widely used in industrial production such as wood floors and furniture. They are used in small household appliances, decorations and other small and irregular surfaces. In the field of surface finishing of the objects, it has given full play to its characteristics and gained promotion. Since UV curing coatings do not contain volatile solvents, the volume shrinkage of the coating film during curing is very small, usually less than 10%. The matting products produced by conventional precipitation methods are difficult to appear on the coating surface, so the ideal matting cannot be achieved. Efficiency, the production cost of matting prod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D7/12
Inventor 操应军李宝德张忆裴亚利靳桂姻刘阳程彦芬
Owner 北京航天赛德科技发展有限公司
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