阅读说明：本技术 一种抗喷涂发花喷涂质感漆及其制备工艺 (Spraying texture paint resisting spraying and floating and preparation process thereof ) 是由 鲁文停 于 2020-08-07 设计创作，主要内容包括：本发明涉及一种抗喷涂发花喷涂质感漆,包含基料和骨料,所述基料和骨料的重量比为35：65。本发明具有优异的耐候保色性,户外暴晒12个月无泛白和褪色现象；施工顺畅,遮盖力强；粘度适中,具有出色的抗分水抗沉降性能,且吸水量低、粘结强度高,柔韧性优异；同时侧光低,喷涂雾化性和表面质感效果优异,能有效抵御施工侧光发花问题的出现,施工应用于建筑外墙,具有出色的装饰保护作用,是一种前景广阔的建筑涂料。(The invention relates to a spraying texture paint resisting spraying and floating, which comprises a base material and an aggregate, wherein the weight ratio of the base material to the aggregate is 35: 65. the invention has excellent weather resistance and color retention, and has no whitening and fading phenomenon after being exposed for 12 months outdoors; construction is smooth, and the covering power is strong; the adhesive has moderate viscosity, excellent water diversion and sedimentation resistance, low water absorption, high bonding strength and excellent flexibility; meanwhile, the side light is low, the spraying atomization performance and the surface texture effect are excellent, the problem of the light blooming of the construction side light can be effectively resisted, the construction is applied to the building outer wall, the coating has an excellent decorative and protective effect, and the coating is a building coating with wide prospect.)

1. The spraying texture paint is characterized by comprising a base material and an aggregate, wherein the weight ratio of the base material to the aggregate is 35: 65.

2. a spray-coating, bloom resistant, textured spray paint as claimed in claim 1 wherein said base material is prepared from the following components in parts by weight:

3. a spray-coating, hair-spray textured paint as claimed in claim 2, wherein the aggregate is 20-180 mesh natural quartz sand.

4. A spray textured paint with spray coating resistance to blistering as claimed in claim 2, wherein the pH adjuster is ammonia water produced by jujude science ltd.

5. A spray-coating bloom resistant textured paint as claimed in claim 2 wherein said dispersant is SN5040 sodium polyacrylate dispersant of nopinaceae.

6. A spray-resistant, flowery-resistant, textured spray paint as claimed in claim 2 wherein said wetting agent is a Genapol D2366 nonionic wetting agent, kraine chemical, germany.

7. A spray-resistant, hairy spray textured paint according to claim 2, wherein the antifreeze agent is ethylene glycol continuously sprayed from Xiamenxin.

8. A spray-bloom resistant spray textured paint as claimed in claim 2 wherein the defoamer is an NXZ type defoamer manufactured by mogounin.

9. The paint of claim 2, wherein the pigment and filler is rutile titanium dioxide R-996 from the group of Tetrapython.

10. A process for preparing a spray textured paint with spray-resistant hair spray texture as claimed in claim 3, which comprises the following steps:

(a) weighing 230.5-260.5 parts of water in advance, adding the water into a high-speed dispersion machine, regulating the rotation speed of the high-speed dispersion machine to 800-;

(b) regulating the rotating speed to 800-1000 revolutions per minute, slowly adding 4-8 parts of hydroxyethyl cellulose and 3-5 parts of pH regulator in sequence, and dispersing at medium speed for 3-5 minutes until complete dissolution;

(c) adjusting the rotating speed to 800-;

(d) regulating the rotating speed to 1000-1500 rpm, sequentially adding 200-300 parts of pigment and filler, and dispersing at high speed for 10-20 minutes until no obvious particles appear;

(e) regulating the rotating speed to 800-450 revolutions per minute, slowly adding 450 parts of the 350-450 parts of the emulsion, stirring for 2-3 minutes, slowly adding 20-25 parts of the film-forming aid and 3-7 parts of the thickening agent again, stirring for 5-10 minutes, slowly adding 4-6 parts of the sterilizing preservative, and stirring for 2-3 minutes to obtain the base material;

(f) and (e) slowly adding a corresponding amount of aggregate into the step (e), and stirring for 3-5 minutes to obtain the spraying texture paint for resisting spraying and floating.

Technical Field

The invention relates to the technical field of paint, in particular to spraying textured paint capable of resisting spraying and floating and a preparation process thereof.

Background

With the improvement of living standard of people, the common flat coating emulsion paint is difficult to meet the requirements of people on the decoration effect of the exterior wall, and the real stone paint texture type coating is increasingly used. However, due to excessive mining, natural colored sand is less and less, the problems of poor batch stability and difficult color reproducibility exist, although artificial dyed sand can meet the requirements, the dyed sand is mostly wrapped by solvent-based colored paint, the environmental pollution is great, the artificial dyed sand is more and more severely limited along with the improvement of the environmental protection requirement, and the artificial dyed sand is not much in practical application.

The texture paint gradually becomes a mainstream due to adjustable color and good reproducibility, and the texture paint is more and more accepted by customers because the texture paint has large construction area, high speed, labor saving and labor saving. However, the coating texture is not plain in practical application, and compared with the real stone paint, the coating has low sand content and more pigments and fillers, and during construction, particularly in high-temperature weather, the floating phenomenon is easy to occur, so that the general phenomenon that a paint film is prone to floating is caused. Therefore, a texture coating resisting the construction and the formation of the coating is urgently needed to be developed so as to meet the requirements of users.

Disclosure of Invention

Technical problem to be solved

In order to solve the problems in the prior art, the invention provides a spraying texture paint capable of resisting spraying and floating and a preparation process thereof, which solve a series of problems of slurry floating, system side light reduction, surface particle texture increase, spraying atomization effect and the like, and realize the solution of the problem of system construction and floating through optimization and promotion of a base material.

(II) technical scheme

In order to achieve the purpose, the invention adopts the main technical scheme that:

the spraying texture paint resisting spraying and floating comprises a base material and an aggregate, wherein the weight ratio of the base material to the aggregate is 35: 65.

further, the base material is prepared from the following components in parts by weight:

further, the aggregate is 20-180 mesh natural quartz sand.

Further, ammonia water produced by Shirong scientific Co., Ltd is used as the pH regulator.

Further, SN5040 polyacrylic acid sodium salt dispersing agent of Nopock is adopted as the dispersing agent.

Further, the wetting agent is a Genapol D2366 non-ionic wetting agent of Clariant chemical Germany.

Further, the antifreeze agent adopts glycol continuously sent by Xiamenxin.

Further, the defoaming agent is an NXZ type defoaming agent produced by Hangagonin.

Furthermore, the pigment and filler adopts rutile type titanium dioxide R-996 of the Tetrapython group.

A preparation process of spraying texture paint resisting spraying and floating comprises the following specific steps:

(a) weighing 230.5-260.5 parts of water in advance, adding the water into a high-speed dispersion machine, regulating the rotation speed of the high-speed dispersion machine to 800-;

(b) regulating the rotating speed to 800-1000 revolutions per minute, slowly adding 4-8 parts of hydroxyethyl cellulose and 3-5 parts of pH regulator in sequence, and dispersing at medium speed for 3-5 minutes until complete dissolution;

(c) adjusting the rotating speed to 800-;

(d) regulating the rotating speed to 1000-1500 rpm, sequentially adding 200-300 parts of pigment and filler, and dispersing at high speed for 10-20 minutes until no obvious particles appear;

(e) regulating the rotating speed to 800-450 revolutions per minute, slowly adding 450 parts of the 350-450 parts of the emulsion, stirring for 2-3 minutes, slowly adding 20-25 parts of the film-forming aid and 3-7 parts of the thickening agent again, stirring for 5-10 minutes, slowly adding 4-6 parts of the sterilizing preservative, and stirring for 2-3 minutes to obtain the base material;

(f) and (e) slowly adding a corresponding amount of aggregate into the step (e), and stirring for 3-5 minutes to obtain the spraying texture paint for resisting spraying and floating.

(III) advantageous effects

The invention has the beneficial effects that: 1. the invention has excellent weather resistance and color retention, and has no whitening and fading phenomenon after being exposed for 12 months outdoors; construction is smooth, and the covering power is strong; the adhesive has moderate viscosity, excellent water diversion and sedimentation resistance, low water absorption, high bonding strength and excellent flexibility; meanwhile, the side light is low, the spraying atomization performance and the surface texture effect are excellent, the problem of the light blooming of the construction side light can be effectively resisted, the construction is applied to the building outer wall, the coating has an excellent decorative and protective effect, and the coating is a building coating with wide prospect.

2. The side light is reduced mainly by utilizing the porosity of the diatomite and the rough feeling of the particles on the surface for extinction.

3. The color retention is excellent, and the whitening and graying phenomena are avoided after the sun exposure for 12 months; construction is smooth without bottom leakage; the coating has the advantages of moderate viscosity, small change of storage viscosity, good storage stability, excellent water absorption, bonding strength and flexibility, excellent spraying atomization performance and surface texture effect, capability of effectively resisting the problem of light and flower formation of construction side light, capability of effectively protecting decorative wall surfaces when applied to construction of external walls, and wide prospect.

4. The wetting agent and the dispersing agent are both ammonium salt and a nonionic water-resistant auxiliary agent, and a paint film is not hydrophilic after being dried, so that the water absorption rate is reduced, and the water-white resistance is improved.

5. The binder is pure acrylic emulsion with high water resistance, high weather resistance and high hardness, and has outstanding weather resistance, color retention, water-white resistance and pigment and filler bonding strength.

6. The balance of anti-settling, spraying atomization, leveling and anti-sagging is realized by adding the thickening agents with different high, medium and low shear viscosities, and the moderate viscosity of the paint can be achieved.

Detailed Description

For a better understanding of the present invention, reference will now be made in detail to the present invention by way of specific embodiments thereof.

The spraying texture paint is characterized by comprising a base material and an aggregate, wherein the weight ratio of the base material to the aggregate is 35: 65, the base material is prepared from the following components in parts by weight:

further, the aggregate is 20-180 mesh natural quartz sand.

Furthermore, the main component of the nano modified bentonite is organic modified refined hectorite, so that the low shear viscosity of the product can be effectively improved, and the thixotropy and high energy can inhibit the pigment and filler from settling; the product is prevented from water diversion, and the tank opening state and the storage stability of the product are improved; meanwhile, the paint has excellent water resistance, and the surface drying is slow and fast, so that the workability of the product is improved.

Furthermore, the hydroxyethyl cellulose is a white powder of non-ionic water-soluble cellulose ether with medium and high viscosity grades, and can effectively improve the storage stability, viscosity and water retention of the product.

Further, ammonia water produced by Shirong scientific Co., Ltd is used as the pH regulator.

Further, SN5040 polyacrylic acid sodium salt dispersing agent of Nopock is adopted as the dispersing agent.

Further, the wetting agent is a Genapol D2366 non-ionic wetting agent of Clariant chemical Germany.

Furthermore, the antifreeze agent adopts ethylene glycol continuously sent by Xiamenxin, and can reduce the freezing point, prolong the drying time of a paint film and improve the freeze-thaw resistance and the workability.

Further, the antifoaming agent is added in equal amount by using NXZ type antifoaming agent produced by Henkening.

Furthermore, the pigment and filler mainly adopts rutile type titanium dioxide R-996 of the Techthon group, and the function of the pigment and filler is to provide dry and wet covering power; 300-mesh diatomite of Jinyuan diatomite products GmbH and 200 heavy calcium carbonate of Sanyou group mainly play roles of filling and extinction.

Furthermore, the addition of the emulsion is beneficial to improving the bonding strength of the coating, improving the water-whitening resistance of a paint film, and having excellent mechanical stability and good water-drying recovery.

Furthermore, the film forming auxiliary agent has excellent hydrolytic stability, high coalescence efficiency, moderate volatilization rate and low freezing point, can effectively reduce the lowest film forming temperature of the coating and improve the stability and uniformity of the pigment in the coating, also can soften emulsion particles and enable the emulsion particles to be bonded together, and improves the scrub resistance and weather resistance of a paint film.

Furthermore, the thickener is a hydrophobic modified acrylic acid alkali swelling thickener, is a milky liquid, has stable system viscosity for a long time, has a viscosity similar to that of a high molecular weight cellulose type HEC thickener, has roller coating splashing resistance superior to that of a cellulose thickener, and has excellent water diversion and sagging resistance.

Furthermore, the wetting agent and the dispersing agent are both selected from ammonium salt and a nonionic water-resistant auxiliary agent, and a paint film is not hydrophilic after being dried, so that the water absorption rate is reduced, and the water-whitening resistance is improved.

Furthermore, the binder is pure acrylic emulsion with high water resistance, high weather resistance and high hardness, and has outstanding weather resistance, color retention, water-white resistance and pigment and filler bonding strength.

Further, the balance of anti-settling, spraying atomization, leveling property and anti-sagging property is realized by adding thickeners with different high, medium and low shear viscosities, and the viscosity of the paint is moderate, such as: the purpose of adding the bentonite is to improve the thixotropy, and the low-shear viscosity is high, so that the pigment precipitation and water diversion resistance is facilitated; meanwhile, the high thixotropy of the paint is also beneficial to spraying and atomizing, and the texture of surface particles is increased; the cellulose mainly plays roles in increasing apparent viscosity and construction water retention, and is favorable for resisting construction sand drop and stubble connection; the alkali swelling and polyurethane thickener mainly plays a role in adjusting construction viscosity and replacing part of cellulose (the phenomenon of floating pulp and floating flower can be easily caused by excessive addition of the cellulose).

A preparation process of spraying texture paint resisting spraying and floating comprises the following specific steps:

(a) weighing 230.5-260.5 parts of water in advance, adding the water into a high-speed dispersion machine, regulating the rotation speed of the high-speed dispersion machine to 800-;

(b) regulating the rotating speed to 800-1000 revolutions per minute, slowly adding 4-8 parts of hydroxyethyl cellulose and 3-5 parts of pH regulator in sequence, and dispersing at medium speed for 3-5 minutes until complete dissolution;

(c) adjusting the rotating speed to 800-;

(d) regulating the rotating speed to 1000-1500 rpm, sequentially adding 200-300 parts of pigment and filler, and dispersing at high speed for 10-20 minutes until no obvious particles appear;

(e) regulating the rotating speed to 800-450 revolutions per minute, slowly adding 450 parts of the 350-450 parts of the emulsion, stirring for 2-3 minutes, slowly adding 20-25 parts of the film-forming aid and 3-7 parts of the thickening agent again, stirring for 5-10 minutes, slowly adding 4-6 parts of the sterilizing preservative, and stirring for 2-3 minutes to obtain the base material;

(f) and (e) slowly adding a corresponding amount of aggregate into the step (e), and stirring for 3-5 minutes to obtain the spraying texture paint for resisting spraying and floating.

Further, the preferable components of the base stock are that the bentonite adopts MZ bentonite of Shanghai gridding company, and the hydroxyethyl cellulose adopts 25HBR type hydroxyethyl cellulose of Sustailon; the emulsion is BLJ-SK8R type emulsion produced by Shanghai Baolijia chemical industry Co., Ltd; the film-forming auxiliary agent is TEXANOL ester alcohol twelve generated by American Istman group, and the drying time of the spraying texture is adjusted by the TEXANOL ester alcohol twelve matched with glycol; the thickener adopts TT-615 type thickener and RM-2020 type thickener which are produced by the Dow chemical company (Shanghai) Limited; the sterilizing preservative adopts HF type bactericide and EPW type preservative produced by Thor company.