Flame retardant paint using graphene

Abstract

The present invention relates to paint, and more specifically, to a flame-retardant paint using graphene that is composed of alumina oxide, graphene oxide, silicon carbide, and a binder, thereby improving flame-retardant action and high-temperature resistance through a flame-retardant component to prevent the generation of flames and toxic gases in the event of a fire, and enabling improved thermal insulation and waterproofing performance.

Description

Technology Field

[0001] The present invention relates to paint, and more specifically, to a flame-retardant paint using graphene to prevent the spread of flames by being composed to have flame-retardant properties including graphene. Background Technology

[0003] Generally, flame-retardant treatment involves treating the surfaces of the interior and exterior materials of buildings and underground facilities with substances that fundamentally block the occurrence and spread of fire, thereby ensuring safety by inhibiting the occurrence and spread of fire.

[0004] In modern times, there have been problems such as the increase in high-rise buildings, the expansion of underground facilities like subways, and the density of housing, which make it easy for fires to spread on a large scale when they occur, and the difficulty in extinguishing fires due to the difficulty in accessing the location of the fire, and the difficulty in evacuating from the fire area, resulting in many casualties.

[0005] Accordingly, the Fire Prevention Act, which manages fires, designates items subject to flame retardant treatment to prevent the occurrence and spread of fire, and stipulates that items subject to flame retardant pretreatment, such as various installation curtains, interior decorations, and carpets, must be flame-retardant treated during the manufacturing or production process, or manufactured or produced using flame-retardant materials.

[0006] However, despite these policy efforts, many buildings are still vulnerable to high temperatures and flames, and ordinary fire-retardant coatings or paints cannot reduce the severity of fires, especially in places where fire suppression is nearly impossible, such as cold storage warehouses, areas handling volatile substances, or power conduits.

[0007] Accordingly, various flame-retardant paints have been proposed in recent years.

[0008] However, while conventional flame-retardant paint can block flames and high temperatures, the combustion of the flame-retardant components releases toxic gases, making rescue operations more difficult.

[0009] In other words, since suffocation accidents caused by toxic gases are more frequent than casualties caused by flames during a fire, this must be considered when selecting fire-retardant paints. Furthermore, even if there are materials that are effective at retardant fire, they fail to block the fundamental heat; consequently, conducted heat causes deformation of the coated surface and leads to internal fires, posing a problem. Prior art literature

[0011] Korean Registered Patent No. 10-1151887. Korean Registered Patent No. 10-2658779. The problem to be solved

[0012] The present invention was devised to solve the aforementioned problems, and the objective of the present invention is to provide a flame-retardant paint using graphene that is composed of alumina oxide, graphene oxide, silicon carbide, and a binder, thereby preventing the generation of flames and toxic gases in the event of a fire by improving flame-retardant action and high-temperature resistance through flame-retardant components, and enabling improved thermal insulation and waterproofing performance. means of solving the problem

[0014] A specific means for achieving the above objective is to provide a flame-retardant paint using graphene composed of powdered alumina oxide, graphene oxide, silicon carbide, and an inorganic binder, wherein, based on 100% by weight of the total flame-retardant paint using graphene, the alumina oxide is composed of 38-42% by weight, the graphene oxide of 2-4% by weight, the silicon carbide of 38-42% by weight, and the inorganic binder of 15-19% by weight, and the inorganic binder is composed of 55-65% by weight of a modified silicate binder and 35-45% by weight of a silica sol binder based on 100% by weight of the total inorganic binder.

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[0017] delete Effects of the invention

[0019] As described above, the flame-retardant paint using graphene according to the present invention is composed of components having flame retardancy and high temperature resistance, such as alumina oxide, graphene oxide, silicon carbide, and a binder. Therefore, in addition to effective flame retardant action in the event of a fire, the thermal insulation and waterproofing performance can be further enhanced in normal conditions through the waterproof binder. Specific details for implementing the invention

[0021] Terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, but should be interpreted in a meaning and concept consistent with the technical spirit of the invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe his invention.

[0022] Therefore, the embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention; thus, it should be understood that various equivalents and modifications that can replace them may exist at the time of filing this application.

[0024] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0025] The flame-retardant paint using graphene according to the present invention is composed of powdered alumina oxide, graphene oxide, silicon carbide, and a binder for binding force.

[0026] At this time, if we examine the composition ratio of each of the above components in the present invention,

[0027] First, alumina oxide is composed of 38 to 42 weight percent based on 100 weight percent of the total flame-retardant paint using graphene of the present invention.

[0028] In this case, the alumina added in the present invention has a very low coefficient of friction as is known and is used for electrodes, carbon rods, refractory materials, molding materials, gamma materials, pencils, etc. In addition, it is widely used as a raw material for special carbon steel, a neutron moderator in nuclear reactors, a special anti-corrosion coating, a coating for metal surfaces, and a raw material for the rubber industry, and in the present invention, it is applied to possess excellent refractory and surface coating properties.

[0029] Meanwhile, it is preferable to add 38 to 42 weight percent of the alumina added in the present invention. If applied at 38 weight percent or less, there is a problem of reduced fire resistance and surface coating ability when using paint, and if applied at 42 weight percent or more, it may lead to a decrease in cohesiveness such as viscosity as paint. Therefore, it is most preferable to add 38 to 42 weight percent.

[0030] In addition, graphene oxide is composed of 2 to 4 weight percent based on 100 weight percent of the total flame-retardant paint using graphene of the present invention.

[0031] At this time, the graphene oxide added in the present invention is known to be thin, light, durable, have very high thermal conductivity, and excellent strength. In particular, the graphene oxide in the present invention is made by causing oxidation on the surface of graphene, and is applied in the present invention to improve strength and thermal insulation because it is soluble in water and biodegradable while having graphene components.

[0032] Meanwhile, it is preferable to add 2 to 4 weight percent of graphene oxide added in the present invention. If applied at less than 2 weight percent, there is a problem of reduced strength, and if applied at more than 4 weight percent, the phenomenon of easily breaking upon impact during curing occurs due to excessive strength enhancement, so adding 2 to 4 weight percent is most preferable.

[0033] In addition, silicon carbide is composed of 38 to 42 weight percent based on 100 weight percent of the total flame-retardant paint using graphene of the present invention.

[0034] At this time, the silicon carbide added in the present invention has high hardness and mechanical strength as well as low thermal expansion and high temperature resistance, as is known, and is applied in the present invention to secure thermal stability by improving thermal expansion.

[0035] Meanwhile, it is preferable to add silicon carbide in an amount of 38 to 42 weight percent in the present invention. If applied at 38 weight percent or less, the effects of thermal expansion and high temperature resistance are insufficient, making it difficult to expect thermal stability. If applied at 42 weight percent or more, the cohesiveness of the paint decreases and the paint breaks easily during curing. Therefore, adding 38 to 42 weight percent is most preferable.

[0036] In addition, the binder is composed of 15 to 19 weight percent based on 100 weight percent of the total flame-retardant paint using graphene of the present invention.

[0037] Meanwhile, in the present invention, the binder is composed of two types of binders, preferably composed of an inorganic binder, a modified silicate binder, and a silica sol binder.

[0038] First, a modified silicate binder is added in an amount of 55 to 65 weight percent based on 100 weight percent of the total binder.

[0039] At this time, the modified silicate binder added in the present invention is used as a soluble penetration enhancer as is known, has high stability against chemical substances, and provides surface gloss; thus, in the present invention, it improves the cohesion of components and provides improved penetration and gloss when paint is applied.

[0040] In addition, a silica sol binder is added in an amount of 35 to 45 weight percent based on 100 weight percent of the total binder.

[0041] At this time, the sol added in the present invention may be a silica sol, and as is known, the silica sol in the present invention serves as a binder to improve chemical stability, durability, and water absorption.

[0042] Meanwhile, in the present invention, the binder added consists of 55-65% by weight of modified silicate binder and 35-45% by weight of silica sol binder. Multiple binders are applied considering their respective characteristics, but the specific gravity of the modified silicate binder is increased to improve penetration power and glossiness due to the characteristics of the paint.

[0043] In addition, the binder added in the present invention is most preferably added in an amount of 15 to 19 weight percent, as if applied in an amount of 15 weight percent or less, compatibility with each component is reduced and it cannot properly perform the role of a binder, and if applied in an amount of 19 weight percent or more, gelation may occur due to excessively rapid binding action.

[0044] That is, the flame-retardant paint using graphene according to the present invention can be obtained through the composition of each of the above-mentioned components, and the paint thus composed can be used as paint by mixing it with water as needed and adjusting the viscosity appropriately.

[0045] As described above, the flame-retardant paint using graphene according to the present invention has its high temperature resistance further enhanced through its flame-retardant components, thereby minimizing the generation of flames and toxic gases in the event of a fire, and in particular, possesses thermal insulation and waterproofing performance.

Claims

Claim 1 A flame-retardant paint using graphene, composed of powdered alumina oxide, graphene oxide, silicon carbide, and an inorganic binder, wherein, based on 100% by weight of the total flame-retardant paint using graphene, the alumina oxide is composed of 38-42% by weight, the graphene oxide of 2-4% by weight, the silicon carbide of 38-42% by weight, and the inorganic binder of 15-19% by weight, and wherein the inorganic binder is composed of 55-65% by weight of a modified silicate binder and 35-45% by weight of a silica sol binder based on 100% by weight of the total inorganic binder. Claim 2 delete Claim 3 delete

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