阅读说明：本技术 一种单组份防水高硬度水性地坪漆及其制备方法 (Single-component waterproof high-hardness water-based floor paint and preparation method thereof ) 是由 房迎春 于 2020-07-14 设计创作，主要内容包括：本发明的一种单组份防水高硬度水性地坪漆及其制备方法。使用改性纯丙乳液和改性硅丙乳液的组合,既能提高耐候性同时又可以增强一定硬度,还有很好的防水效果,其次本配方还引入聚碳化二亚胺,有效促进乳液交联,加快干燥速率,对提高附着力帮助很大,再次区别于一般地坪漆所用的硅酸钠或硅酸钾,本发明采用的硅酸锂,模数选用3.5的,最大降低泛碱的可能,稳定性更佳,最重要的是提高整体的强度和耐磨性。最后为解决传统硅酸盐体系储存稳定性的问题,本发明引入了水玻璃稳定性,可以有效阻止水玻璃和乳液的反应,达到共存的效果,有效解决了该体系储存稳定性的问题。(The invention relates to a single-component waterproof high-hardness water-based floor paint and a preparation method thereof. The modified pure acrylic emulsion and the modified silicone acrylic emulsion are combined, so that the weather resistance can be improved, a certain hardness can be enhanced, a good waterproof effect is achieved, the polycarbodiimide is introduced into the formula, the emulsion crosslinking is effectively promoted, the drying rate is accelerated, the adhesion is greatly improved, and the modified silicone acrylic emulsion is different from sodium silicate or potassium silicate used for common floor paint. Finally, in order to solve the problem of storage stability of the traditional silicate system, the invention introduces the stability of the water glass, can effectively prevent the reaction of the water glass and the emulsion, achieves the coexistence effect and effectively solves the problem of storage stability of the system.)

1. The utility model provides a single component waterproof high rigidity waterborne floor paint which characterized in that includes following component:

10-25 parts of modified pure acrylic emulsion, 15-25 parts of modified silicone acrylic emulsion, 0.7-1 part of film-forming additive, 20-30 parts of lithium water glass, 5-7 parts of calcined kaolin and 7-10 parts of precipitated barium sulfate.

2. The single-component waterproof high-hardness water-based floor paint according to claim 1, characterized in that: also comprises 0.1 to 0.3 portion of lithium hydroxide, 1.5 to 2 portions of polycarbodiimide, 0.1 to 0.2 portion of wetting dispersant and 0.1 to 0.2 portion of rheological additive.

3. The single-component waterproof high-hardness water-based floor paint according to claim 1, characterized in that: also comprises 0.2 to 0.4 portion of defoaming agent, 0.2 to 0.4 portion of preservative, 3 to 5 portions of nano zinc oxide and 10 to 15 portions of nano titanium dioxide.

4. The single-component waterproof high-hardness water-based floor paint according to claim 1, characterized in that: also comprises 0.1 to 0.3 portion of water glass stabilizer, 1 to 1.5 portions of fumed silica and 1 to 1.5 portions of modified bentonite.

5. The preparation method of the single-component waterproof high-hardness water-based floor paint is characterized by comprising the following steps:

s100, preparing materials according to the mass fraction of the required components;

s200, mixing materials for the first time, adding modified pure acrylic emulsion and modified silicone acrylic emulsion into a high-speed dispersing machine, and dispersing;

s300, mixing materials for the second time, adding a film forming aid and a defoaming agent into a high-speed disperser, and dispersing for 15 min;

s400, dispersing for three times, slowly adding a preservative solution into a high-speed dispersing machine, and dispersing for 10 min;

s500, dispersing for four times, namely adding carbodiimide and lithium hydroxide dropwise into a high-speed dispersing machine, and continuously dispersing for 15min in the dropwise adding process;

s600, dispersing for five times, adding a wetting dispersant and a rheological aid into a high-speed dispersing machine, and dispersing for 10 min;

s700, dispersing for six times, adding nano titanium dioxide and nano zinc oxide into a high-speed disperser, increasing the rotating speed of the disperser and dispersing for 15 min;

s800, dispersing for seven times, continuously adding precipitated barium sulfate and calcined kaolin, and increasing the rotating speed of the dispersing machine again and dispersing for 30 min;

s900, dispersing for eight times, adding a defoaming agent when bubbles appear in the solution in the high-speed dispersing machine, adding lithium water glass and a water glass stabilizer when no particle bubbles appear, and continuing dispersing for 15 min;

and S1000, dispersing for nine times, adding fumed silica and modified bentonite into a high-speed dispersing machine, dispersing for 20min, and stopping dispersing after no particle bubbles exist to obtain the floor paint.

6. The preparation method of the single-component waterproof high-hardness water-based floor paint according to claim 5, characterized by comprising the following steps: in the steps S200, S300, S400, S500 and S600, the rotation speed of the high-speed dispersion machine is 800-.

7. The preparation method of the single-component waterproof high-hardness water-based floor paint according to claim 5, characterized by comprising the following steps: the preservative solution in the step S400 is formed by mixing a preservative and deionized water, the ratio of the preservative to the deionized water is 1:1, and the preservative is a cason preservative.

8. The preparation method of the single-component waterproof high-hardness water-based floor paint according to claim 5, wherein the material preparation in the step S100 is specifically as follows: 10-25 parts of modified pure acrylic emulsion, 15-25 parts of modified silicone acrylic emulsion, 0.7-1 part of film forming additive, 20-30 parts of lithium water glass, 5-7 parts of calcined kaolin, 7-10 parts of precipitated barium sulfate, 0.1-0.3 part of lithium hydroxide, 1.5-2 parts of polycarbodiimide, 0.1-0.2 part of wetting dispersant, 0.1-0.2 part of rheological additive, 0.2-0.4 part of defoaming agent, 0.2-0.4 part of preservative, 3-5 parts of nano zinc oxide, 10-15 parts of nano titanium dioxide, 0.1-0.3 part of water glass stabilizer, 1-1.5 parts of fumed silica and 1-1.5 parts of modified bentonite.

9. The preparation method of the one-component waterproof high-hardness water-based floor paint according to claim 5, wherein in the step S1000, the modified bentonite is pre-dissolved by deionized water before being added.

Technical Field

The invention belongs to the technical field of floor paint, and particularly relates to single-component waterproof high-hardness water-based floor paint and a preparation method thereof.

Background

The existing floor paint mainly takes oiliness as a main part, epoxy, polyurethane and polyurea are also classified in the oiliness, the floor paint contains harmful substances, the current environment-friendly requirement cannot be met, and the epoxy has poor weather resistance and is not suitable for outdoor use. Therefore, the water-based floor paint is produced, but the existing water-based floor paint has the defects of low hardness, poor wear resistance, poor weather resistance, high possibility of efflorescence, poor water resistance and the like.

Disclosure of Invention

1. Technical problem to be solved by the invention

The invention aims to solve the problems of poor water resistance, low hardness and poor wear resistance of the conventional floor paint.

2. Technical scheme

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

the invention discloses a single-component waterproof high-hardness water-based floor paint which comprises the following components:

10-25 parts of modified pure acrylic emulsion, 15-25 parts of modified silicone acrylic emulsion, 0.7-1 part of film-forming additive, 20-30 parts of lithium water glass, 5-7 parts of calcined kaolin and 7-10 parts of precipitated barium sulfate.

Preferably, the paint also comprises 0.1 to 0.3 part of lithium hydroxide, 1.5 to 2 parts of polycarbodiimide, 0.1 to 0.2 part of wetting dispersant and 0.1 to 0.2 part of rheological additive.

Preferably, the coating also comprises 0.2-0.4 part of defoaming agent, 0.2-0.4 part of preservative, 3-5 parts of nano zinc oxide and 10-15 parts of nano titanium dioxide.

Preferably, the water glass stabilizer also comprises 0.1 to 0.3 part of water glass stabilizer, 1 to 1.5 parts of fumed silica and 1 to 1.5 parts of modified bentonite.

A preparation method of a single-component waterproof high-hardness water-based floor paint specifically comprises the following steps:

s100, preparing materials according to the mass fraction of the required components;

s200, mixing materials for the first time, adding modified pure acrylic emulsion and modified silicone acrylic emulsion into a high-speed dispersing machine, and dispersing;

s300, mixing materials for the second time, adding a film forming aid and a defoaming agent into a high-speed disperser, and dispersing for 15 min;

s400, dispersing for three times, slowly adding a preservative solution into a high-speed dispersing machine, and dispersing for 10 min;

s500, dispersing for four times, namely adding carbodiimide and lithium hydroxide dropwise into a high-speed dispersing machine, and continuously dispersing for 15min in the dropwise adding process;

s600, dispersing for five times, adding a wetting dispersant and a rheological aid into a high-speed dispersing machine, and dispersing for 10 min;

s700, dispersing for six times, adding nano titanium dioxide and nano zinc oxide into a high-speed disperser, increasing the rotating speed of the disperser and dispersing for 15 min;

s800, dispersing for seven times, continuously adding precipitated barium sulfate and calcined kaolin, and increasing the rotating speed of the dispersing machine again and dispersing for 30 min;

s900, dispersing for eight times, adding a defoaming agent when bubbles appear in the solution in the high-speed dispersing machine, adding lithium water glass and a water glass stabilizer when no particle bubbles appear, and continuing dispersing for 15 min;

and S1000, dispersing for nine times, adding fumed silica and modified bentonite into a high-speed dispersing machine, dispersing for 20min, and stopping dispersing after no particle bubbles exist to obtain the floor paint.

Preferably, in the steps S200, S300, S400, S500 and S600, the rotation speed of the high-speed disperser is 600-.

Preferably, the preservative solution in the step S400 is formed by mixing a preservative and deionized water, the ratio of the preservative to the deionized water is 1:1, and the preservative is a cason preservative.

Preferably, the material preparation in step S100 specifically includes: 10-25 parts of modified pure acrylic emulsion, 15-25 parts of modified silicone acrylic emulsion, 0.7-1 part of film forming additive, 20-30 parts of lithium water glass, 5-7 parts of calcined kaolin, 7-10 parts of precipitated barium sulfate, 0.1-0.3 part of lithium hydroxide, 1.5-2 parts of polycarbodiimide, 0.1-0.2 part of wetting dispersant, 0.1-0.2 part of rheological additive, 0.2-0.4 part of defoaming agent, 0.2-0.4 part of preservative, 3-5 parts of nano zinc oxide, 10-15 parts of nano titanium dioxide, 0.1-0.3 part of water glass stabilizer, 1-1.5 parts of fumed silica and 1-1.5 parts of modified bentonite.

Preferably, in step S1000, the modified bentonite needs to be pre-dissolved with deionized water before being added.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

the invention relates to a single-component waterproof high-hardness water-based floor paint and a preparation method thereof. The modified pure acrylic emulsion and the modified silicone acrylic emulsion are combined, so that the weather resistance can be improved, a certain hardness can be enhanced, a good waterproof effect is achieved, the polycarbodiimide is introduced into the formula, the emulsion crosslinking is effectively promoted, the drying rate is accelerated, the adhesion is greatly improved, and the modified silicone acrylic emulsion is different from sodium silicate or potassium silicate used for common floor paint. Finally, in order to solve the problem of storage stability of the traditional silicate system, the invention introduces the stability of the water glass, can effectively prevent the reaction of the water glass and the emulsion, achieves the coexistence effect and effectively solves the problem of storage stability of the system.

Drawings

FIG. 1 is a flow chart of the method of the present invention.

Detailed Description

In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in many different forms and are not limited to the embodiments described herein, but rather are provided for the purpose of providing a more thorough disclosure of the invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.