KR20160011348A

KR20160011348A - water repellent-coating agent for inner and outer vehicle

Info

Publication number: KR20160011348A
Application number: KR1020140092283A
Authority: KR
Inventors: 임근택
Original assignee: 임근택
Priority date: 2014-07-22
Filing date: 2014-07-22
Publication date: 2016-02-01

Abstract

The present invention relates to a water-repellent film coating agent for an interior and an exterior of a vehicle. More specifically, the present invention relates to a water-repellent film coating agent for an interior and an exterior of a vehicle, which forms a highly concentrated silica film on a painting surface of the vehicle, thereby preventing damage and contamination on the interior and the exterior of the vehicle. Furthermore, the coating agent is easy to wash out and exhibits gloss effects as well. To this end, the water-repellent film coating agent comprises: a liquid organosilicic compound for formation of a glass membrane; decamethyl cyclopentasiloxane which increases a spontaneous combustion point; and isopropyl alcohol involved in the regulation of concentration.

Description

[0001] The present invention relates to a water repellent coating agent for an inner and outer vehicle,

More particularly, the present invention relates to a water-repellent coating agent for preventing water damage and contamination inside and outside the automobile by forming a high-density silica coating on the painted surface of an automobile, To the inside and outside water repellent coatings of vehicles.

The surface of the vehicle is subject to discoloration due to ultraviolet rays and acid rain, and is exposed to scratches and external contaminants generated during car washing and vehicle running, and the surface of the vehicle body is contaminated.

The glass coating is used as a next-generation coating to reduce the amount of contaminants stuck to the surface of the car body, prevent damage to the body such as scratches and scratches, and reduce color fade to maintain long-term gloss.

In the case of a conventional glass coating agent, a glass coating agent composed of silica at a low concentration of 2% to 5% is applied to the vehicle to protect the vehicle.

Since the conventional glass coating agent has a low silica concentration, the glass coating agent is applied repeatedly.

Accordingly, when the construction work is carried out through the construction company, the labor cost is increased due to the repeated construction, and the cost of the product is increased.

Also, even if the customer directly constructs the product without going through the construction company, it is difficult to work due to repetitive application and the operation takes a long time.

Accordingly, there is a growing demand for a glass coating agent having improved performance and durability so as to reduce the generation of pollution and discoloration.

It is an object of the present invention to provide a water repellent coating agent for a vehicle interior and exterior which increases the concentration of silica, increases durability and gloss, and facilitates the construction work.

Another object of the present invention is to provide a vehicle interior and exterior water-repellent coating agent capable of increasing the water repellency and reducing pollutants sticking to the surface of a vehicle.

In order to achieve the objects of the present invention, first, the present invention provides a method of manufacturing a glass substrate, Decamethyl cyclopentasiloxane, which increases the spontaneous ignition point; And isopropyl alcohol which adjusts the concentration of the water-repellent coating agent.

In a preferred embodiment, the liquid organosilicon compound is at least one of polydimethylsiloxane, trimethylated silica, Tetrakis silane, and trimethoxysilane. .

In a preferred embodiment, an aminoalkoxy dimethylpolysiloxane is further added to the liquid organosilicon compound to increase the hydrostatic force.

In a preferred embodiment, the polydimethylsiloxane comprises 40 to 50 wt% of the polydimethylsiloxane, 10 to 20 wt% of the trimethylated silica, 5 to 15 wt% of the tetrakis silane, 1 to 4% by weight of the trimethoxysilane, 5 to 10% by weight of the aminoalkoxy dimethylpolysiloxane, 10 to 20% by weight of the decamethyl cyclopentasiloxane, Isopropyl alcohol) 2.5 to 7.5% by weight.

The present invention has the following excellent effects.

According to the water repellent coating coating agent of the present invention, the concentration of silica is increased to increase the resistance to acid or alkali, the surface hardness and gloss are improved, and the construction work is easy.

In addition, according to the water repellent coating agent of the present invention, water repellency can be increased so that the water contact angle is 110 ° to 120 °, thereby reducing pollutants sticking to the surface of the vehicle.

FIG. 1 is a view showing that a water-repellent coating agent is applied inside and outside of a vehicle to form a glass film according to an embodiment of the present invention.

Although the terms used in the present invention have been selected as general terms that are widely used at present, there are some terms selected arbitrarily by the applicant in a specific case. In this case, the meaning described or used in the detailed description part of the invention The meaning must be grasped.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings and preferred embodiments.

However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Like reference numerals used to describe the present invention throughout the specification denote like elements.

According to one embodiment of the present invention, a water repellent coating agent for a vehicle interior and exterior reacts at room temperature to cure only a pure silica component to form a silica coating, wherein a liquid organosilicon compound; Decamethyl cyclopentasiloxane; And isopropyl alcohol.

The organosilicon compound is a compound which forms a silica coating on the surface of the coating surface. The organosilicon compound is not limited as long as it is a material containing organosilicon, but is preferably a polydimethylsiloxane, trimethylated silica, , Tetrakis silane, and trimethoxysilane, and is used as a liquid phase.

At this time, if the organosilicon compound is used in a liquid phase, the coating operation is easy and uniform application is possible.

In addition, the organosilicon compounds may be used in combination.

At this time, 40 to 50% by weight of the polydimethylsiloxane and 5 to 15% by weight of the tetrakis silane in the total weight% of the inner and outer water-repellent coatings according to one embodiment of the present invention The gloss of the silica coating is increased.

Also, when the trimethylated silica is 10 to 20% by weight, it is advantageous to form a silica coating.

And 1 to 4% by weight of trimethoxysilane is effective for increasing the durability of the silica coating.

Further, the liquid organosilicon compound preferably further contains aminoalkoxy dimethylpolysiloxane, and 5 to 10% by weight of the amitalkoxydimethylpolysiloxane is further included to increase the water repellency of the silica film.

The decamethylcyclopentasiloxane is preferably volatile silicon in an amount of 10 to 20% by weight.

This can increase the natural ignition point by using decamethylcyclopentasiloxane, thereby securing the stability of the water repellent coating agent inside and outside the vehicle according to the present invention, and enabling the product to be exported overseas.

The isopropyl alcohol is used to adjust the concentration, and 2.5 to 7.5 wt% is used.

When the concentration of the isopropyl alcohol is less than 2.5% by weight, the silicon component is excessively contained to form a silica film more than necessary, and when it exceeds 7.5% by weight , The curing time becomes long after coating, and foreign substances such as dust can be adhered to the painting surface of the vehicle during curing.

As shown in FIG. 1, when the water repellent coating agent for a vehicle interior and exterior according to an embodiment of the present invention is applied to a paint surface of a vehicle, organic matter is hydrolyzed by reaction with oxygen in the atmosphere at room temperature , The generated hydrogen (2H ₂ ) and ammonia (NH ₃ ) flow into the atmosphere, and only the pure silica component is cured to form a strong silica coating on the coated surface.

Experimental Example 1

The changes in the inside and outside water repellent coatings according to the present invention were investigated by dipping them in a 5% sulfuric acid aqueous solution for 7 days.

As a result, no change in color or change in surface was observed and it was confirmed that the acid resistance was excellent.

Experimental Example 2

The variation of the water repellent coating agent inside and outside the vehicle according to the present invention was examined by immersing it in an aqueous 5% sodium hydroxide solution for 7 days.

As a result, no change in color or a change in surface was observed, and it was confirmed that excellent alkali resistance was obtained.

Experimental Example 3

The variation of the water repellent coating agent inside and outside the vehicle according to the present invention was examined by immersing it in an aqueous 5% sodium chloride solution for 7 days.

As a result, no change in color or change in surface was observed, and it was confirmed that the salt resistance was excellent.

Experimental Example 5

In order to confirm the water repellency of the water repellent coating agent inside and outside the vehicle according to the present invention, the water contact angle was confirmed.

As a result, the contact angle of water was 110 ° ~ 120 ° and it was confirmed that the water repellency was excellent.

Due to the above-described structure, the inner and outer water-repellent coating coatings according to the present invention increase the concentration of silica to increase the quality of the product and also facilitate the construction work. Furthermore, the water repellency can be increased so that the water contact angle is 110 ° to 120 °, thereby reducing pollutants sticking to the surface of the vehicle.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, Various changes and modifications will be possible.

Claims

A liquid organosilicon compound for forming a glass film;
Decamethyl cyclopentasiloxane, which increases the spontaneous ignition point; And
The inner and outer water-repellent coatings made of isopropyl alcohol which adjust the concentration.

The method according to claim 1,
Wherein the liquid organosilicon compound comprises at least one of polydimethylsiloxane, trimethylated silica, tetrakis silane, and trimethoxysilane. Water repellent coating inside and outside the vehicle.

3. The method of claim 2,
Wherein water repellency is increased by further including aminoalkoxy dimethylpolysiloxane in the liquid organosilicon compound.

The method of claim 3,
40 to 50% by weight of the polydimethylsiloxane, 10 to 20% by weight of the trimethylated silica, 5 to 15% by weight of the tetrakis silane, the trimethoxysilane ( 1 to 4% by weight of the aminoalkoxy dimethylpolysiloxane, 10 to 20% by weight of decamethyl cyclopentasiloxane, and 2.5 to 7.5% by weight of the isopropyl alcohol. By weight based on the weight of the water repellent coating agent.