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Composite modified starch environmentally-friendly interior wall coating and preparation method thereof

A composite modified starch and interior wall coating technology, applied in the field of interior wall coatings, can solve the problems of waterproof, poor stain resistance, non-bacterial, etc., and achieve the effect of lasting bright colors, environmental friendliness, and improved impact resistance

Active Publication Date: 2012-01-18
GANSU GLDARK NEW MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are many kinds of interior wall coatings, but their waterproof and stain resistance are poor, and they are not antibacterial. In view of this, we use the original starch modification technology to develop this kind of composite modified starch environmental protection interior wall architectural coating

Method used

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  • Composite modified starch environmentally-friendly interior wall coating and preparation method thereof
  • Composite modified starch environmentally-friendly interior wall coating and preparation method thereof
  • Composite modified starch environmentally-friendly interior wall coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] (1), 250ml of deionized water, 8g of sodium polycarboxylate, 0.2g of tributyl phosphate, and 1g of 1,2-phenylpropylisothiazolin-3-one were stirred while feeding in the stirring disperser, and the stirring speed 500 rpm, stirring for 12 minutes;

[0044] (2), adjust the stirring speed to 1600 rev / min, successively mix nano-calcium carbonate 3g, nano-silica 3g, porous starch adsorption pigment 30g, heavy calcium carbonate 120g, light calcium 50g, kaolin 100g, talcum powder 50g and mica Put 30g of powder into the batching pot and stir for 1.5h;

[0045] (3), then reduce stirring speed to 400 rpm, add ethylene glycol 8g, 27% ammoniacal liquor 3g and composite modified starch emulsion 80g while stirring, after stirring evenly, then add composite modified starch emulsion 100g, stir evenly, The coating product was then obtained by filtering with an 80-mesh screen.

Embodiment 2

[0047] (1), 2000ml of deionized water, 100g of sodium polyacrylate, 1g of tributyl phosphate, and 6g of 2-n-octyl-4-isothiazolin-3-one were stirred while feeding in the stirring disperser, and the stirring speed 400 rpm, stirring for 10 minutes;

[0048] (2), adjust the stirring speed to 1500 rpm, and successively put 40g of nano-titanium oxide, 50g of nano-calcium carbonate, 100g of porous starch adsorption pigment, 1800g of heavy calcium carbonate, 1500g of kaolin, 600g of talcum powder and 500g of mica powder into the batching pot Inside, stir for 1h;

[0049] (3), reduce stirring speed to 400 revs / min, add ethylene glycol ethyl ether 100g, 27% ammoniacal liquor 50g and composite modified starch emulsion 1000g while stirring, add composite modified starch emulsion 1500g again after stirring, stir evenly, then The paint product was obtained by filtering through a 90-mesh screen.

Embodiment 3

[0051](1), 80L of deionized water, 4kg of ammonium polyacrylate, 0.04kg of tributyl phosphate, and 0.24kg of 2,4,5,6-tetrachloroisophthalonitrile were stirred while feeding in the stirring disperser, stirring The speed is 400 rpm, stirring for 15 minutes;

[0052] (2), adjust the stirring speed to 1500 rev / min, successively mix nano-titanium oxide 2kg, nano-calcium carbonate 2kg, nano-zinc oxide 1kg, porous starch adsorption pigment 4kg, heavy calcium carbonate 75kg, kaolin 60kg, talcum powder 25kg and weight Put 20kg of spar powder into the batching pot and stir for 1.3h;

[0053] (3), reduce stirring speed to 400 rpm, add ethylene glycol 4kg, 27% ammoniacal liquor 2.1kg and compound modified starch emulsion 45kg while stirring, add composite modified starch emulsion 60kg again after stirring, stir evenly, then The paint product was obtained by filtering through a 100 mesh screen.

[0054] The product quality inspection data of the coating is detailed in the table below:

...

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Abstract

The invention discloses a method for preparing a corn pregelatinization oxidative cross-linking starch environmentally-friendly interior wall coating which is mainly prepared from the following components: corn pregelatinization oxidative cross-linking starch emulsion, nano materials, porous starch absorption pigments, a filler, a dispersion agent, a defoaming agent, an anticorrosion mildew inhibitor, a neutralizer, a filming-forming adjuvant and water. The preparation method comprises the following steps: (1) the preparation of the corn pregelatinization oxidative cross-linking starch; (2) the preparation of the corn pregelatinization oxidative cross-linking starch emulsion; (3) the preparation of porous starch; (4) the preparation of the porous starch absorption pigments; and (5) the preparation of the corn pregelatinization oxidative cross-linking starch interior wall coating material. According to the invention, starch is modified, because the corn pregelatinization oxidative cross-linking starch emulsion and the porous starch absorption pigments are utilized, the prepared coating products have no pollution and are environmentally-friendly, and the color is more endurable and shining; and by adopting a technology of adding nano materials, the performances of the coating material, such as impact resistance, adhesive attraction, aging resistance, corrosion resistance, ultraviolet resistance and the like are improved greatly.

Description

technical field [0001] The invention belongs to the technical field of interior wall coatings, and in particular relates to a single-component composite modified starch environment-friendly interior wall coating and a preparation method thereof. Background technique [0002] At present, the development direction of the scientific and technological work of architectural coatings in my country is as follows: one is to develop in the direction of water-based and environmental protection, and the variety structure of coatings is to reduce the VOC content, and to develop towards environmental protection products; the second is to develop towards functionalization; the third is to Develop towards high performance and high grade; the fourth is to improve the preparation technology of coatings, mainly including the production and selection of high-quality fillers, the supporting application of various additives and the preparation of colorants, the use of nano-materials and ultra-fine...

Claims

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Application Information

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IPC IPC(8): C09D103/04C09D103/10C09D7/12C08B31/18
Inventor 田映良孙兰弟方悦
Owner GANSU GLDARK NEW MATERIAL
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