Metallic paint composition and preparation method thereof
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A composition and metal paint technology, applied in the field of metal paint materials, can solve problems such as peeling, paint film cracking, and paint film brittleness, and achieve the effects of not being brittle and falling off, good adhesion, and low cost
Inactive Publication Date: 2015-02-18
苏州冰心文化用品有限公司
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However, due to the relatively high density of metal zinc powder, it is easy to settle, so it is necessary to add a certain amount of anti-settling agent to the paint. Due to the addition of anti-settling agent, the viscosity of the paint will also increase, so it is necessary to add a large amount of toxic solvents. , and the lacquer coating changes with the environmental conditions, the brittleness of the paint film becomes larger after curing, and the metal expands and contracts when the temperature changes, which is easy to cause the paint film to crack or fall off
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Embodiment 1
[0022] (1) Take by weighing polymethyl acrylate 20kg, lauryl alcohol 8kg, nano zinc oxide powder 6kg, aluminum powder 5kg and methyltriacetoxysilane 1kg;
[0023] (2) Add the above components into a homogenizer and mix them uniformly at 60°C, then add 8kg of water, 2kg of hydrogenated soybean oil, and 2kg of propylene glycol methyl ether in sequence, and stir for 15 minutes at a stirring rate of 1100 rpm. Degassing at low temperature for 1 hour to obtain a metallic paint composition.
[0024] The performance test results of the prepared metallic paint composition are shown in Table 1.
Embodiment 2
[0026] (1) Take by weighing polymethyl acrylate 25kg, lauryl alcohol 5kg, nano zinc oxide powder 8kg, copper powder 7kg and methyltriacetoxysilane 1kg;
[0027] (2) Put the above components into a homogenizer and mix them uniformly at 75°C, then add 12kg of water, 1kg of hydrogenated soybean oil, and 3kg of propylene glycol methyl ether in sequence, and stir for 10 minutes at a stirring rate of 1250 rpm. Degassing at low temperature for 2 hours to obtain a metallic paint composition.
[0028] The performance test results of the prepared metallic paint composition are shown in Table 1.
Embodiment 3
[0030] (1) Take by weighing polymethyl acrylate 30kg, lauryl alcohol 7kg, nano zinc oxide powder 5kg, stainless steel powder 8kg and methyltriacetoxysilane 2kg;
[0031] (2) Put the above components into a homogenizer and mix them uniformly at 70°C, then add 10kg of water and 2kg of propylene glycol methyl ether in turn, stir for 10 minutes at a stirring rate of 1100 rpm, and defoam for 1 hour under vacuum , to obtain a metallic paint composition.
[0032] The performance test results of the prepared metallic paint composition are shown in Table 1.
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Abstract
The invention discloses a metallic paint composition and a preparation method thereof. The metallic paint composition is prepared from the following components in parts by weight: 20-30 parts of polymethyl acrylate, 8-12 parts of water, 5-8 parts of zinc oxide, 5-8 parts of laurinol, 5-8 parts of metallic pigment, 2-3 parts of propylene glycol monomethyl ether and 1-2 parts of methyltriacetoxysilane. The invention also provides the preparation method of the metallic paint composition. The preparation method comprises the following steps: (1) weighing 20-30 weight parts of polymethyl acrylate, 5-8 weight parts of laurinol, 5-8 weight parts of zinc oxide, 5-8 weight parts of metallic pigment and 1-2 weight parts of methyltriacetoxysilane; and (2) adding the weighed components to a homogenizer for evenly mixing at a temperature ranging from 60-75 DEG C, and then orderly adding 8-12 weight parts of water, 0-2 weight parts of hydrogenated soybean oil and 2-3 weight parts of propylene glycol monomethyl ether, stirring at a high speed for 10-15 minutes, and defoaming for 1-2 hours under the vacuum condition, thereby obtaining the metallic paint composition.
Description
technical field [0001] The invention relates to the field of metal paint materials, in particular to a metal paint composition and a preparation method thereof. Background technique [0002] Metallic pigments have a metallic luster and are mainly made of metal or alloy particles or flakes after grinding. They are widely used in the paint industry as decorative paints. [0003] In recent years, metallic paint is mainly used on the surface of materials. On the one hand, it has a good decorative effect, and on the other hand, it also protects the surface of materials from corrosion and scratches. The commonly used anti-corrosion paint mainly includes epoxy zinc-rich paint, because its color is close to the natural color of metal, and it can protect the metal surface. However, due to the relatively high density of metal zinc powder, it is easy to settle, so it is necessary to add a certain amount of anti-settling agent to the paint. Due to the addition of anti-settling agent, t...
Claims
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