WO2020149470A1

WO2020149470A1 - Method for processing mma artificial marble top plate

Info

Publication number: WO2020149470A1
Application number: PCT/KR2019/008354
Authority: WO
Inventors: 엄지혜
Original assignee: 엄지혜
Priority date: 2019-01-15
Filing date: 2019-07-08
Publication date: 2020-07-23
Also published as: KR101995556B1

Abstract

The present invention pertains to a method for processing an MMA artificial marble top plate, the method comprising: (a) a step for polishing the MMA artificial marble top plate with a polish; (b) a step for coating the MMA artificial marble top plate with a nano coating agent after step (a); and (c) a step for drying, for 25-35 minutes, the MMA artificial marble top plate coated in step (b), wherein the polish contains nanoparticles while in a liquid state.

Description

Method for processing the top plate of MMA artificial marble material

The present invention relates to a method for processing a top plate of an MMA artificial marble material, and in order to perform polishing by sandpaper of 5 steps and polishing by a liquid polish containing nanoparticles in order, the surface of the top plate of an MMA artificial marble material is processed. After minimizing the formed micro grooves, coating with an inorganic hard coating agent or coating with a nano coating agent allows the glossiness of the top plate to be maintained for a long time in a state where the glossiness is higher than a predetermined glossiness, and at the same time, increases the hardness of the MMA artificial marble It relates to a method of processing an MMA artificial marble top plate that minimizes the occurrence of scratches, further prevents contamination of the top plate, and can be easily removed from contamination even in a contaminated state.

Artificial marble is a marble produced by using fillers such as aluminum hydroxide, heavy calcium carbonate, and fine silica powder and binder materials such as methyl methacrylate resin, unsaturated polyester resin, epoxy, polyurethane, and phenol resin. It is similar to the product.

Artificial marble, which is widely used in Korea, is an MMA artificial marble made by mixing methyl methacrylate (organic) called MMA (Methyl Methacrylane) with a filler of about 50% by weight.

This MMA artificial marble not only has excellent processability, weatherability and workability, but is light and non-porous compared to natural marble, has excellent color tone, superior strength and weather resistance, and is superior to that of wood. It has processability and can be differentiated from natural marble.

Therefore, MMA artificial marble is used for various purposes such as various sink top materials, dressing tables, sinks, tables, wall materials, flooring materials, furniture, interior materials, indirect lighting panels, interior accessories, etc. It is used as a kitchen top for Ina apartments.

When MMA artificial marble is used as a worktop in a kitchen or workroom, abrasion and contamination are somewhat vulnerable, and scratches are easily generated during work, and contaminants adhere to this scratch, deteriorating the gloss of the top and causing discoloration or causing bacteria. Problems such as breeding occur.

In order to solve this problem, a method of coating an antimicrobial coating on the top plate has been attempted, but the surface of the MMA artificial marble has very low friction, so the coating is difficult to coat and is easily peeled off even after coating. A method of increasing the frictional force of the surface of the artificial marble with sandpaper or grinder to facilitate coating of the paint is not desirable because it not only lowers the gloss of the top plate but also creates more fine grooves.

Therefore, there is an urgent need for a method of processing a top plate made of an MMA artificial marble material that is excellent in high hardness and pollution prevention while maintaining high gloss.

(Patent Document 1) KR10-2009-0125519 A

In order to solve the problems according to the above-described prior art, it is intended to provide a method of processing a top plate made of an MMA artificial marble material that has strong wear resistance, is efficient in preventing contamination, and can maintain a high gloss for a long time.

Specifically, even if the coating is maintained, the gloss is maintained for a long time, and the coating is not easily peeled off, so that it has an excellent anti-pollution effect, it is equipped with a certain processing step before coating, and at the same time, it is a top plate of MMA artificial marble material that limits the type of coating To provide a processing method of.

In order to solve the problems according to the prior art described above, the method of processing the top plate of the MMA artificial marble material according to the present invention includes the steps of (a) polishing the top plate of the MMA artificial marble material with a polishing agent, wherein the polishing agent is in a liquid state In nanoparticles.

Preferably, (b) after the step (a), further comprising the step of coating the top plate of the MMA artificial marble material with a nano coating agent.

Preferably, (c) further comprises the step of drying the top plate of the MMA artificial marble material coated in step (b) for 20 to 40 minutes.

Preferably, before the step (a-1) (a), the top plate of the MMA artificial marble material is polished with sandpaper, and is sanded through 5 steps in order of sandpaper having a large particle size in sandpaper having a small particle size.

Preferably, (d) after the step (a), further comprising the step of coating the top plate of the MMA artificial marble material with an inorganic hard coating agent.

Due to the above-described problem solving means, it is possible to maintain high glossiness for a long time after being coated, and the hardness of the top plate is increased to minimize the occurrence of scratches, and further, the anti-pollution effect is excellent, and the contamination can be easily removed in a contaminated state. The effectiveness of the MMA artificial marble top plate is increased.

Specifically, as a plurality of sandpaper polished and polished with a polishing agent containing nanoparticles, the fine grooves formed on the surface of the top plate of the MMA artificial marble material are filled or removed, and coated with a nano coating agent or an inorganic hard coating agent to achieve high gloss. While maintaining it, it is possible to effectively prevent contamination, and furthermore, it is possible to easily remove contaminants even in a contaminated state.

1 is a flow chart for a processing method according to a first embodiment, which is a processing method of an MMA artificial marble material top plate according to the present invention.

2 to 4 are views for visually comparing the effects according to the first embodiment.

5 is a flow chart for a processing method according to a second embodiment, which is a processing method of an MMA artificial marble material top plate according to the present invention.

6 is a view for visually comparing the effects of the first and second embodiments.

Hereinafter, preferred embodiments of the method according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or practice. Therefore, the definition of these terms should be made based on the contents throughout the present specification.

The first embodiment will be described with reference to FIGS. 1 to 4.

S100: MMA artificial marble top plate polished with sandpaper

Visible contaminants located on the surface of the MMA artificial marble top plate are removed with a mop. Thereafter, a sandpaper is mounted on the lower portion of the polisher having a rotating lower portion, and the top plate of the MMA artificial marble material is evenly polished with sandpaper in a state in which a constant force is applied to the polisher.

Sandpaper polishing can go through a number of steps. That is, it can be polished through 5 steps in the order of sandpaper having a particle size of 220, 320, 600, 1200, or 2000 rooms.

The surface of the top plate of the MMA artificial marble material may have a micro groove having various sizes. When polishing is performed from a sandpaper having a large particle size (sandpaper having a low roughness) from the beginning, in the case of a large-sized microgroove, the microgroove may not be filled or removed, but may still remain in the form of a groove.

Alternatively, when polishing is performed with sandpaper having a large particle size, and then polishing is performed with a sandpaper having a small particle size (sandpaper having a high roughness), scratches are generated again in the already filled or removed microgrooves to generate additional fine grooves due to the sandpaper. Problems arise.

Therefore, by sanding a sandpaper with a small particle size (sandpaper having a high coarseness) to process a large sized microgroove, and by processing a small sized microgroove not treated with a small particle sized sandpaper, the sandpaper having a small particle size has a large particle size. It is preferable that sandpaper polishing is performed in the order of sandpaper.

More preferably, it is preferable that the sandpaper polishing in the 5th stage is progressed, while the difference between the particle sizes of the sandpaper applied in the first stage and the 2nd and 3rd stages is narrowed, while in the 4th and 5th stages, the difference between the particle sizes of the sandpaper is expanded. It is preferred to apply.

Accordingly, in a manner in which a fine particle sized sandpaper is processed from a large sized micro groove, and then a small sized fine groove is processed with a large sized sandpaper. Fine grooves on the top plate of the MMA artificial marble material may be processed.

S200: Clean the top plate made of MMA artificial marble

The top plate made of MMA artificial marble, polished in 5 steps with sandpaper, is washed with water. When washing, it can be cleaned by wiping with a mop, etc., but after spraying water on the top plate of MMA artificial marble material to remove even fine dust produced by grinding with sandpaper, install a sponge at the bottom of the polisher, and then apply a constant force to the polisher. In this applied state, it is preferable that the top plate of the MMA artificial marble material is washed.

FIG. 2 is a view for visually evaluating the glossiness of (A) and not (B) polished with a five-step sandpaper. It can be seen that there is a marked difference in glossiness. It can be seen that the flatness of the top plate of the MMA artificial marble material was greatly increased when it was polished with a 5-step sandpaper.

Thereafter, the top plate of the MMA artificial marble material is polished with a nano-gloss agent to be described later.

In the case where it is not polished in 5 steps with sand paper, if it is directly polished with a nano-gloss agent, it is filled only for nano-sized micro-grooves or polished and removed, and in general, any treatment for micro-grooves much larger than nano-sized (filled It is not removed from the ground or polished), so even if it is eventually coated with an inorganic hard coating agent, the anti-pollution effect cannot be maximized and a certain degree of gloss cannot be maintained for a long time.

Therefore, it can be seen that the five-step polishing step with sandpaper and the polishing step with a nano-gloss agent have an organic bonding relationship to maximize the effect by hard coating.

S300: Polishing the MMA artificial marble top plate with a nano-gloss agent

The top plate made of MMA artificial marble is polished with a nano-gloss agent. The nano-brightener is an aqueous brightener and is a brightener containing nanoparticles in a liquid state.

With the sandpaper polishing in 5 steps, the micro grooves of a certain size formed on the top plate of the MMA artificial marble material are filled or polished and removed and processed, and the top plate of the MMA artificial marble material is polished with a liquid nanoparticle containing nanoparticles. do.

In the state where the micro grooves of a certain size formed on the top plate of the MMA artificial marble material are treated, the top plate of the MMA artificial marble material is polished with a nano-gloss agent to fill or polish the small size micro grooves that cannot be treated with sandpaper. do.

Accordingly, the micro-groove having a size of nano size or more is filled or polished and removed.

After attaching the pad to the bottom of the polisher, the nano-polished agent is placed on the top plate of MMA artificial marble polished with sandpaper, and then the top plate of the MMA artificial marble material is applied under a constant force to the polisher with the pad attached to the bottom. It is polished.

The nanoparticles contained in the nano-brightening agent may be any material, but may be a nano-sized material having a hardness greater than that of engineered stone.

3 is a view for visually evaluating the glossiness of the case (A) and the case where it is not polished with the nano-gloss agent after the 5-step sandpaper polishing (B). It can be seen that there is a marked difference in glossiness.

2 and 3, it can be seen that a difference in glossiness occurs when the polishing is performed using a nano-gloss agent up to the 5th step sandpaper polishing step, which is due to the sandpaper polishing and subsequent polishing of the nano-gloss agent. It can be seen that the flatness of the MMA artificial marble top plate is further increased.

S400: MMA artificial marble top plate coated with inorganic hard coating agent and dried

The top plate made of MMA artificial marble, polished with a brightener containing nanoparticles, is coated with an inorganic hard coating agent, and then dried for 24 hours. This is to increase the pollution prevention effect.

When the top plate of the MMA artificial marble material is coated with the inorganic hard coating agent without being polished with a nano-gloss agent, when the top plate of the MMA artificial marble material is hard coated with various sizes of micro grooves, the adhesive area becomes relatively small and hard. The adhesive strength of the coating is weak, and even after hard coating, a problem occurs that the hard coating is lifted and easily peeled off due to air or fine moisture located in the micro groove that is not treated (not filled or removed).

Furthermore, when the top plate of the MMA artificial marble material is not flat, when the top plate of the non-flat MMA artificial marble material is formed in a finely curved shape, the contaminants are stuck to the finely dug out of the curved shape. It is easy to be contaminated by being adhered to such a finely-grained shape, and further, it is difficult to remove contaminants adhered to this finely-digged portion by general washing.

That is, the hard coating without the step of being polished with a nano-gloss agent is in a state where the hard coating agent is weakly adhered, and a problem of deterioration of the function of hard coating called anti-pollution and a problem in that the glossiness is remarkably deteriorated.

Therefore, it is preferable that the top plate of the MMA artificial marble material is polished with a nano-gloss agent before being coated with an inorganic hard coating agent to prevent contamination for a long time and to maximize the anti-pollution effect. That is, it can be seen that the polishing step with a nano-gloss agent and the coating step with an inorganic hard coating agent are organically combined in order to maintain adhesion, contamination prevention and a certain degree of glossiness for a long time.

FIG. 4 shows the glossiness of the case where the sandpaper is polished with a nano-gloss agent after the 5th step sandpaper polishing, and then coated with an inorganic hard coating agent (A), and immediately after the sandpaper polishing step 5 has been coated with an inorganic hard coating agent (B). It is a diagram showing an enlarged state for comparative evaluation.

The case where the polishing step of the nano-gloss agent is included (A) shows a marked difference in glossiness compared to the case where it is not (B).

A second embodiment will be described with reference to FIGS. 5 and 6.

Steps S100 to S300 in the second embodiment are according to the first embodiment.

However, the parts to be described differently in the second embodiment among those described in the first embodiment in steps S100 and S200 are as follows.

After the five-step sandpaper polishing and washing in steps S100 to S200, the top plate of the MMA artificial marble material is polished with a nano-gloss agent to be described later. In the case where it is not polished in 5 steps with sand paper, if it is directly polished with a nano-gloss agent, it is filled only for nano-sized micro-grooves or polished and removed, and in general, any treatment for micro-grooves much larger than nano-sized (filled Also, it is not removed after being polished or polished, so even if it is eventually coated with a nano coating agent, it cannot maximize the anti-pollution effect and cannot maintain a certain degree of glossiness for a long time.

Therefore, it can be seen that the step of polishing in five steps with sandpaper and the step of polishing with a nano-gloss agent have an organic bonding relationship to maximize the effect by the nano-coating agent.

S400-1: MMA artificial marble top plate coated with nano coating agent and dried

The top plate of MMA artificial marble material polished with a brightener containing nanoparticles is coated with a nanocoating agent, and then dried for about 30 minutes. This is to increase the pollution prevention effect.

That is, a coating layer made of nanoparticles that can penetrate and adsorb to the micro grooves formed on the surface of the top plate of the MMA artificial marble material to increase the anti-pollution effect by forming a coating layer of an ultra-thin film. Further, unlike the inorganic hard coating agent, the drying time is short, so the working time for processing the top plate of the MMA artificial marble material can be reduced. Construction efficiency is increased.

The top plate of MMA artificial marble polished with a nano-gloss agent is treated with most of the nano-sized or larger-sized micro grooves, so that the remaining micro-sized micro-grooves remain, and the nano-coating agent is applied to the remaining nano-sized micro-grooves. Is penetrated and adsorbed to form an ultra-thin coating on the MMA artificial marble top plate.

When the top plate of the MMA artificial marble material is coated with the nano-coating agent in a state where it is not polished with a nano-gloss agent, the micro-grooves of various sizes remain, resulting in a more uneven state, and the top plate of the uneven MMA artificial marble material is fine. When the contaminants are adhered to the finely dug out of the curved shape due to the formation in a curved shape, it is easy to be contaminated by adhering to the finely dug shape. It is difficult to remove the problem.

That is, nano-coating without the step of being polished with a nano-gloss agent causes a problem in that the function of nano-coating, called anti-pollution, is weakened, and accordingly, glossiness is significantly reduced.

Therefore, it is preferable that the top plate of the MMA artificial marble material is necessarily polished with a nano-gloss agent before being coated with a nano-coating agent to prevent contamination for a long time and maximize the anti-pollution effect. That is, in order to prevent contamination and maintain a certain degree of glossiness for a long time, it can be seen that the polishing step with the nano-gloss agent and the coating step with the nano-coating agent are organically combined.

FIG. 6 is a view showing an enlarged state of the photograph in order to visually compare and evaluate the glossiness of the first embodiment (B) and the second embodiment (A). It can be seen that the glossiness (A) of the top plate of the MMA artificial marble material coated with the nano coating agent is superior to the glossiness (B) of the top plate of the MMA artificial marble material coated with the inorganic hard coating agent.

As the processing method according to the present invention, the hard coating by the inorganic hard coating agent, which is the first embodiment, is coated on the surface of the top plate of the MMA artificial marble material, and thus the contamination prevention and glossiness are eventually flatness of the top plate of the MMA artificial marble material. It may vary depending on the degree. Therefore, it can be considered that polishing with a nano-gloss agent before hard coating is essential. The glossiness in FIG. 6 is a hard-coated glossiness in a form in which micro-grooves of about nano-size remain, despite the polishing by the nano-gloss agent.

On the other hand, as the processing method according to the present invention, the nano-coating by the nano-coating agent, which is the second embodiment, is a nano-sized micro-groove that still remains after polishing by the nano-gloss agent, and the nano-coating agent of the nano-particle size penetrates and adsorbs the MMA. The flatness of the marble top plate is much higher than that of hard coating. Likewise, if there is no polishing step with the nano-gloss agent, even if the nano-coating agent penetrates into the microgroove and is adsorbed, a fine bend shape can be formed on the top surface of the MMA artificial marble material, so it is considered that polishing with the nano-gloss agent before nano-coating is essential. Can. The glossiness in FIG. 6 is the glossiness in a state in which the nano coating agent penetrates into the nano-sized microgroove after polishing by the nano-gloss agent, and the nano-sized microgroove that scatters light and degrades the gloss is removed. In-bar, it can be seen that it is more vivid than the hard-coated gloss.

As described above, the present specification has been described with reference to the embodiments shown in the drawings so that those skilled in the art can easily understand and reproduce the present invention, but these are merely exemplary, and those skilled in the art can make various modifications and equivalents from the embodiments of the present invention. It will be understood that embodiments are possible. Therefore, the protection scope of the present invention should be defined by the claims.

Claims

(a-1) After the visible contaminants located on the top plate of the MMA artificial marble material are removed, the top plate of the MMA artificial marble material is polished with sandpaper, but in the sandpaper having a small particle size, in the order of the sandpaper having a large particle size, step 5 is performed. Polished through;

(a-2) washing the top plate of the MMA artificial marble material polished in the step (a-1);

(a) a step in which the top plate of the MMA artificial marble material washed in the step (a-2) is polished with a polishing agent;

(b) after the step (a), coating the top plate of the MMA artificial marble material with a nano coating agent; And

(c) a step in which the top plate of the MMA artificial marble material coated in step (b) is dried for 25 to 35 minutes,

The brightener in the step (a) includes nanoparticles of a material having a hardness greater than the hardness of the engineered stone in a liquid state,

In step (a-1), polishing is performed with sandpaper of 5 steps in order, and as it goes from 1 to 5 steps, the difference between the particle size of the sandpaper of the previous step and the next step increases,

In the step (a-2), the top plate of the MMA artificial marble material is in a state where a polisher is located on the top plate of the MMA artificial marble material sprayed with water and a constant force is applied to the polisher equipped with a sponge at the bottom. Is washed,

In the step (a), the top plate of the MMA artificial marble material in a state where the polisher is located on the top plate of the MMA artificial marble material on which the brightener is located and a constant force is applied to the polisher equipped with a pad at the bottom. Method for processing the top plate of MMA artificial marble material to be polished.