KR102201457B1 - Aggregate packaging material composition having water permeability - Google Patents

Abstract

The present invention includes 50 to 100 parts by weight of a main part, 10 to 50 parts by weight of a hardener part, and 50 to 300 parts by weight of a filler part, wherein the main part is 40 to 80 parts by weight of an epoxy resin, 1 to 20 parts by weight of a pigment, and 3 to 20% by weight and 5 to 40% by weight of a solvent, and the curing agent part contains 45 to 65% by weight of an amide-based curing agent, 20 to 30% by weight of an amine-based curing agent, 5 to 10% by weight of a curing accelerator, and 5 to 15% by weight of a solvent. It includes, and the filler relates to a permeable aggregate packaging composition comprising silica sand and illite.
The water permeable aggregate packaging composition according to the present invention is excellent in water resistance and weather resistance, does not easily discolor by ultraviolet rays, can reduce the amount of use of organic solvents, can reduce the elution of odors and harmful substances, as well as prevent slipping. It is excellent and can form a pavement material suitable for the creation of park sidewalks, trails, bicycle paths, plaza sidewalks, gyeonggyo passages, historic site sidewalks, cultural property sidewalks, and tourist site sidewalks.

Description

Aggregate packaging material composition having water permeability}

The present invention relates to a water permeable aggregate packaging composition comprising an epoxy resin capable of forming a packaging material layer having functions such as anti-slip, injury prevention, human impact relief, and securing water permeability on a roadway.

Permeable aggregate pavement is not only for existing facilities such as ascon, permeable cone, concrete, etc., but also forms a pavement layer on the surface of the floor that requires remodeling to create a colorful and suitable landscape, supplement the strength of the floor, and slide along the sidewalk. It is being constructed for the purpose of imparting functionality such as prevention, injury prevention, human impact relief, and water permeability. Building parking lots, theme streets, pedestrian paths, plazas, promenades, gyeonggyo passages, historical sites, cultural heritage areas, tourist destinations, bicycle paths, It is installed in neighborhood living spaces such as parks.

In general, packaging materials are manufactured by using polymer materials such as epoxy resin, polyester resin, acrylic resin, urethane resin, and polyurea resin as a binder. In particular, packaging materials containing epoxy resins have adhesion, chemical resistance, abrasion resistance, etc. It is used as a general-purpose material due to its excellent properties and economical advantages, and conventionally, a number of technologies are known as the above-described epoxy resin-based packaging material.

For example, Korean Patent No. 10-1340585, which is Document 1, includes (1) subject including ultra-micro silica whose surface is modified with an epoxy resin, mineral split, diluent, antifoaming agent, leveling agent, wetting agent, and silane coupling agent; And (2) a curing agent comprising bohemite of nanoparticles whose surface has been modified with a modified aliphatic amine, a modified aromatic amine, an accelerator, an antifoaming agent, and a silane coupling agent. Has been disclosed.

As another example, in Korean Patent No. 10-1926121, document 2, a subject including a polyfunctional epoxy resin having two or more functional groups, an acrylic epoxy-modified mercaptan resin, a special filler, a metal powder, a reactive diluent, a toner and an additive part; And a curing agent portion including a polyamide resin, a modified amine resin, a polyether-based amine resin, and a mercaptan resin; wherein the main portion and the curing agent portion are mixed in a weight ratio of 100:30 to 70. Silica sand for flooring, characterized in that The contents of the packaging material composition have been disclosed.

As another example, Korean Patent No. 10-1955156 of Document 3 includes an epoxy-modified polyurethane prepolymer composition (A solution), an acrylic composition (B solution), an inorganic filler as a polymerization initiator and a filler, Epoxy-modified polyurethane prepolymer composition (solution A) is prepared by synthesizing epoxy, polyol, and diisocyanate to make an isocyanate terminal, and then reacting a reactive acrylic monomer to the terminal. The epoxy-modified polyurethane prepolymer is polyol, diisocyanate, Consisting of epoxy and reactive acrylic, the epoxy has a hydroxyl group (OH) group capable of reacting with an isocyanate group in its structure, and the acrylic composition (solution B) is a non-reactive acrylic monomer, crosslinking agent, and curing agent in an acrylic polymer resin. There has been disclosed the content of a flooring composition for road pavement, characterized in that a mixture of accelerator, inorganic filler, antifoaming agent, coupling agent, and wax is mixed.

Compositions as disclosed in Documents 1 to 3 have the property of being able to form a packaging layer having excellent adhesion and mechanical properties by containing an epoxy resin, but the water resistance and weather resistance of the packaging layer are somewhat poor, so that the packaging layer is easily removed from the sidewalk in rainy weather. It is easily discolored by UV rays, and there is a problem that an odor is caused in the packaging material by the curing agent used to cure the epoxy resin.In the case of a solvent-free type epoxy resin using a diluent, the anti-slip effect is insignificant, and this can be supplemented. Research on

Korean Patent Registration No. 10-1340585 (Announcement date: 2013.12.11) Korean Patent Registration No. 10-1926121 (announcement date: 2018.12.07) Korean Patent Registration No. 10-1955156 (announcement date: 2019.03.06) Korean Patent Registration No. 10-1967268 (announcement date: 2019.04.09)

The present invention has been devised to solve the problems of the prior art as described above, has excellent water resistance and weather resistance, can reduce the elution of odors and harmful substances caused by the amine-based curing agent, and has excellent anti-slip effect. It is intended to provide technical details for a permeable aggregate packaging composition capable of forming a packaging material on a road surface.

The technical problems to be solved by the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned are clearly understood by those of ordinary skill in the technical field to which the present invention belongs from the following description. Can be.

In order to achieve the technical problem as described above, the present invention includes 50 to 100 parts by weight of a main part, 10 to 50 parts by weight of a curing agent, and 50 to 300 parts by weight of a filler part, wherein the main part is 40 to 80% by weight of an epoxy resin , Pigment 1 to 20% by weight, additives 3 to 20% by weight and 5 to 40% by weight of a solvent, and the curing agent part 45 to 65% by weight of an amide-based curing agent, 20 to 30% by weight of an amine-based curing agent, 5 to 30% by weight of a curing accelerator It includes 10% by weight and 5 to 15% by weight of a solvent, and the filler provides a permeable aggregate packaging composition, characterized in that it contains silica sand and illite.

In addition, the epoxy resin may include a bisphenol A type epoxy resin and a bisphenol F type epoxy resin in a weight ratio of 1:1 to 1:3.

In addition, the additive may include at least one selected from the group consisting of an ultraviolet stabilizer, a modifier, a silane coupling agent, a defoaming agent, a leveling agent, a wetting agent, a flame retardant, a matting agent, an antioxidant and a viscosity adjusting agent.

In addition, the curing agent is 20 to 30% by weight of an amine-based curing agent containing 45 to 65% by weight of an amide curing agent including a polyamide resin, isophoronediamine and metaxylenediamine in a weight ratio of 1:1 to 1:2, respectively , It may contain 5 to 10% by weight of a curing accelerator including 2-methylimidazole and 5 to 15% by weight of a solvent.

In addition, the illite may include a modified illite powder prepared by mixing natural illite powder with an acidic aqueous solution containing an ammonium salt, followed by acid treatment, and then heating at a temperature of 100 to 150° C. for 5 to 24 hours.

The water-permeable aggregate packaging composition according to the present invention is excellent in weather resistance and is not easily discolored by ultraviolet rays, can reduce the amount of organic solvent used, can reduce odor and elution of harmful substances, and has anti-slip effect and water resistance. As it is excellent, it can form a pavement material suitable for the creation of park sidewalks, trails, bicycle paths, plaza sidewalks, gyeonggyo paths, historical site sidewalks, cultural property sidewalks, and tourist site sidewalks.

In addition, it is possible to form an eco-friendly packaging material having water permeability and moisturizing properties while sufficiently exhibiting the properties of the material such as anti-slip function by using silica sand and illite, which are natural aggregates.

1 is a view of (a) formaldehyde, (b) toluene and (c) xylene generated in a packaging material specimen of a permeable aggregate packaging composition prepared by a method according to Examples and Comparative Examples in order to analyze the effect of reducing the elution of harmful substances. This is the result of measuring the elution amount.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement the present invention. However, since the description of the present invention is merely an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, since the embodiments can be modified in various ways and have various forms, the scope of the present invention should be understood to include equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only those effects, the scope of the present invention should not be understood as being limited thereto.

The meaning of the terms described in the present invention should be understood as follows.

Terms such as "first" and "second" are used to distinguish one component from other components, and the scope of rights is not limited by these terms. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component. When a component is referred to as being "connected" to another component, it should be understood that although it may be directly connected to the other component, another component may exist in the middle. On the other hand, when it is mentioned that a component is "directly connected" to another component, it should be understood that there is no other component in the middle. On the other hand, other expressions describing the relationship between the constituent elements, that is, "between" and "just between" or "neighboring to" and "directly neighboring to" should be interpreted as well.

Singular expressions are to be understood as including plural expressions unless the context clearly indicates otherwise, and terms such as "comprises" or "have" refer to specified features, numbers, steps, actions, components, parts, or It is to be understood that it is intended to designate that a combination exists and does not preclude the presence or addition of one or more other features or numbers, steps, actions, components, parts, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the field to which the present invention belongs, unless otherwise defined. Terms defined in a commonly used dictionary should be interpreted as having the meaning of the related technology in context, and cannot be interpreted as having an ideal or excessively formal meaning unless explicitly defined in the present invention.

Hereinafter, the present invention will be described in detail.

The water-permeable aggregate packaging composition according to the present invention includes (1) a main part comprising an epoxy resin, a pigment, an additive and a solvent; (2) a curing agent portion containing an amide curing agent, an amine curing agent, a curing accelerator and a solvent; And (3) a filler part including silica sand and illite.

The permeable aggregate packaging composition as described above includes 50 to 100 parts by weight of the main part, 10 to 50 parts by weight of the hardener part, and 50 to 300 parts by weight of the filler part.

Specifically, if the content of the main part in the permeable aggregate packaging composition is less than 50 parts by weight, adhesion and abrasion resistance with the adherend surface may decrease, and there may be a problem that the filler is easily removed from friction, impact, etc., and if it exceeds 100 parts by weight, adhesion Adhesion to cotton is excellent, but economical efficiency is poor, and slip resistance is lowered, so there is a risk of safety accidents occurring in sections such as rain or downhill.

In addition, when the content of the curing agent part in the water permeable aggregate packaging composition is less than 10 parts by weight, the curing time is longer and the content of the epoxy resin is relatively large, and the ether group is accompanied by etherification by the self-reaction of the epoxy. Is generated, hardening does not occur sufficiently, there may be a problem in that adhesion is lowered, and if it exceeds 50 parts by weight, cracks are formed in the packaging material or mechanical strength decreases, and there is a concern that the packaging material deviation increases.

In addition, when the content of the filler part in the permeable aggregate packaging composition is less than 50 parts by weight, it is difficult to form a packaging material having excellent properties such as anti-slip effect and abrasion resistance, and when the content of the filler part exceeds 300 parts by weight, the adhesive strength of the packaging material decreases due to the high content of the filler part. Can occur.

On the other hand, the permeable aggregate packaging composition as described above is preferably used to form a packaging material by first forming a primer layer on the adherend surface before forming the packaging material on the adherend surface, and then applying the permeable aggregate packaging composition to the upper surface of the primer layer. , The primer layer may be formed by applying a primer including an acrylic resin, a urethane resin, an epoxy resin, a vinyl acetate resin, a vinyl chloride resin or a mixture thereof to the adherend surface.

Looking in detail for each of the materials constituting the main part, the hardener part, and the filler part in the above-described water permeable aggregate packaging composition, the main part includes an epoxy resin, a pigment, an additive, and a solvent.

Epoxy resin added to the main part has excellent hardening strength, hardness, and workability, and there is no volume shrinkage during curing due to combination with a suitable curing agent, and can form a packaging material with excellent adhesion, and acts as a binder to cure by a curing agent. As a result, a packaging material is formed on the adherend surface, and a packaging material having excellent mechanical properties and chemical resistance can be formed.

The epoxy resin may be used without limitation as long as it contains one or more epoxy groups as a functional group in the molecule.

Specifically, the epoxy resin is a bisphenol A type epoxy resin (diglycidyl ether of bisphenol A, DGEBA), a bisphenol F type epoxy resin (diglycidyl ether of bisphenol F, DGEBF), a phenol novolac epoxy resin (phenol novolac epoxy) or cresol no Novolac type epoxy resins such as cresol novolac epoxy, halogenated epoxy resins such as brominated epoxy, cycloaliphatic epoxy resins, rubber modified epoxy resins, etc. ), aliphatic polyglycidyl epoxy, glycidylamine epoxy, polyglycol epoxy, cardanol-based epoxy, or mixtures thereof You can use

Preferably, the epoxy resin may be a mixture containing a bisphenol A type epoxy resin and a bisphenol A type epoxy resin, and the bisphenol A type epoxy resin is an epoxy resin produced by reacting bisphenol A with epichlorohydrin. As, the viscosity (unit: cps, 25 ℃) is 11,000 to 15,000, it plays a role of imparting sufficient adhesion and mechanical properties to the packaging material.

Bisphenol F-type epoxy resin is an epoxy resin produced by the condensation reaction of diphenylomethane and epichlorohydrin, and hydrogen (H) is substituted for methyl group (-CH ₃ ) in the molecule of bisphenol A epoxy resin. This resin has a viscosity (unit: cps, 25 ℃) of 1,000 to 5,000, and has a lower viscosity than bisphenol A type, so it can reduce the amount of organic solvents added, has excellent compatibility, and has controversy over existing environmental hazards. The content of resin can be reduced.

Preferably, the epoxy resin may be a mixture comprising the bisphenol A type epoxy resin and the bisphenol F type epoxy resin in a weight ratio of 1:1 to 1:3, and the content of the bisphenol A epoxy resin is within the above range. If the amount is not reached, the flexibility and impact resistance of the packaging material may be deteriorated, and if it is exceeded, the workability may be greatly deteriorated.If the content of the bisphenol F type epoxy resin is not within the above range, the viscosity of the composition It is high, and there may be a problem that the amount of organic solvent is increased.If the amount exceeds the above range, the amount of curing agent is increased, and the flowability and curing time of the composition increase, making it difficult to secure the thickness of the packaging material, and the problem of the appearance of the packaging material. Can occur.

In the main part, the epoxy resin may be included in a proportion of 40 to 70% by weight, and if the content of the epoxy resin is less than 40 parts by weight, the adhesive strength with the adherend is lowered and the role of the binder is insufficient, so that the filler is easily removed. It may occur, and if it exceeds 70% by weight, there is a fear that a safety accident may occur in rainy roads and downhill sections due to the decrease in slip resistance.

The pigment added to the main part is a component added to realize various colors in the packaging material and enhance visibility, and may include extender pigments, color pigments, or mixtures thereof.

Extender pigments include calcium carbonate, kaolin, aluminum silicate, titanium dioxide, satin white, dolomite, mica, metal flakes, bentonite, rutile, magnesium hydroxide, gypsum, lamellar silicate, talc , Calcium silicate or mixtures thereof may be used.

In order to achieve the effect of coloring and improving the durability of the packaging material at the same time, the colored pigments include metal oxides such as red iron oxide, iron sulfate, black iron oxide, and copper oxide, chromates such as chromium orange, chromium green, and chromium yellow, and chromium oxide green. Inorganic pigments including lactates, carbonates, hydroxides, chromates, or mixtures thereof may be used, or organic pigments such as cyanine green, cyanine blue containing phthalocyanine, and quinacridone may be used.

Preferably, the pigment in the main part may be included in a proportion of 1 to 20% by weight, and when the content of the pigment is less than 1% by weight, the effect of imparting coloring and improving durability of the packaging material is insignificant, and when it exceeds 20% by weight, the pigment The effect of excessive use of is insignificant.

More preferably, the pigment may include a colored pigment, and the main portion may include a colored pigment in an amount of 1 to 20% by weight.

The solvent added to the main part is for dissolving the epoxy resin, and controls the viscosity, flowability, defoaming property, etc. of the composition, and plays a role of controlling the homogeneity of the composition and the permeability to the adherend.

The solvent is an aromatic hydrocarbon containing xylene, toluene, benzene, cyclohexane or a mixture thereof, dimethyl ketone, methyl ethyl ketone, methyl propyl ketone, methyl isobutyl ketone or ketones containing a mixture thereof, esters, methanol, Alcohols including ethanol, benzyl alcohol, n-propanol, isopropanol, n-butanol, isobutanol, neobutanol, n-pentanol, isopentanol, neopentanol or mixtures thereof, ethylene glycol, propylene glycol, or these Glycols including a mixture of or a mixture thereof may be used.

Preferably, the solvent may be a mixture containing 30 to 50% by weight of benzyl alcohol, 20 to 40% by weight of toluene, and 10 to 50% by weight of xylene.

The solvent in the main part may be included in an amount of 5 to 40% by weight, and if the content of the solvent is less than 5% by weight, it is difficult to sufficiently disperse the epoxy resin, and the viscosity of the composition is high, so that workability may be deteriorated, and 40% by weight. When it exceeds %, the viscosity is low, so that flowability increases, and the elution amount of volatile organic compounds increases.

Additives added to the main part are added for the purpose of improving the properties of the composition and packaging, and include ultraviolet stabilizers, modifiers, antifoaming agents, leveling agents, wetting agents, dispersants, flame retardants, matting agents, antioxidants, viscosity modifiers, or mixtures thereof. It is a representative example.

The additive may be mixed in an amount of 3 to 20% by weight within a range that does not impair the physical properties of the packaging material depending on the intended use.

Specifically, the UV stabilizer serves to provide a surface protection effect to block discoloration and change in physical properties of the packaging material by improving the stability of the packaging material against UV rays, and 2-(2'-hydroxy-3, 5'-di(1,1-dimethylbenzyl-phenyl)-benzotriazole, 2-(2'-hydroxy-3', 5'-di-ter-butylphenyl)-benzotriazole, 2-(2 '-Hydroxy-3'-terbutyl-5'-methylphenyl)-5-chloro-benzotriazole, 2-(2-hydroxy-5-ter-octylphenyl)-benzotriazole, 2-(5- Methyl-2-hydroxy-phenyl)-benzotriazole, 2,6-di-t-butyl-4-methylphenol, tetrakis[methylene-3-(3,5-di-t-butyl-4-hydr) Roxyphenyl)propionate]methane, octadecyl-3,5-di-t-butyl-4-hydroxyhydrocinnamate, 2,2-methylenebis(4-methyl-6-t-butylphenol), tris (2,4-di-t-butylphenyl)-phosphite, bis(2,4-di-t-butyl), pentaerythritol-di-phosphite alkylester phosphite, dilauryl thio-di-propionate , Di-stearyl thio-di-propionate and dimyristyl thio-di-propionate, or mixtures thereof.

The modifier is one capable of modifying the physical properties of the packaging material, and may be silica, talc, bentone, or a mixture thereof.

Since the silane coupling agent has a reactor capable of bonding with an organic functional group in a molecule and a reactor capable of bonding with inorganic materials, it improves adhesion between different materials and the accompanying mechanical strength, water resistance, weather resistance, and heat resistance. .

Silane coupling agents are vinylmethoxysilane, γ-aminopropyltrimethoxysilane, γ-glycidylpropyltrimethoxysilane, and γ-melcaptopropyltrimethoxysilane. Silane (γ-mercaptopropyltrimethoxysilane), γ-methacryloxypropyltrimethoxysilane, γ-aminopropylmethyl-diethoxysilane, γ-aminopropylmethyl-triethoxysilane Representative examples include (γ-aminopropylmethyltriethoxysilane) and 3-glycidoxypropyltrimethoxysilane.

The antifoaming agent is added to the composition to remove air bubbles.Silicone-based such as polydimethylsiloxane and methylsiloxane, non-silicone-based such as polyalkylvinylether, mineral oil, or their Mixtures can be used.

The leveling agent is added to improve fluidity by lowering the surface tension of the composition, and polyacrylate, polyethylene oxideacetate, or a mixture thereof may be used.

Wetting agents are added to increase the diffusion power by reducing the interfacial tension of the composition with the adherend surface such as concrete, etc., citric acid, polyglycerol fatty acid ester, sorbitan fatty acid ester, polyethylene glycol, ethoxylate, or mixtures thereof You can use

The flame retardant serves to improve the durability of the packaging material according to temperature changes, and may be used by introducing various known materials commonly used in the art.

Flame retardants include triphenyl phosphate, trixylenyl phosphate, tricresyl phosphate, triisophenyl phosphate, tris-chloroethyl phosphate, tris-chloropropyl phosphate, resorcinol di-phosphate, aromatic polyphosphate, ammonium polyphosphate, Representative examples include red phosphorus, aluminum hydroxide, or mixtures thereof.

The matting agent is added for the purpose of lowering the gloss of the packaging material, and various known materials commonly used in the art may be introduced.

Representative examples of the matting agent include airgel silica, hydrogel silica, PP wax, PE wax, PTFE wax, urea formaldehyde resin, benzoguamine formaldehyde resin, or a mixture thereof.

Antioxidants play a role in preventing discoloration of the packaging material and preventing degradation of physical properties due to oxidation, and various known materials commonly used in the art may be introduced.

The antioxidant may be a phosphorus antioxidant, a phenolic antioxidant, or a mixture thereof.

Representative examples of phosphorus antioxidants include tri-methylphosphate, tri-phenylphosphate, tris(2,4-di-tert-butylphenyl)phosphate or mixtures thereof, and the phenolic antioxidant is triethyleneglycol-bis- 3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate, 1, 6-hexane-diol-3 (3, 5-di-tert-butyl-4-hydroxyphenyl) pro Cypionate, pentaerythrityl-tetrakis (3-(3, 5-di-tert-butyl-4-hydroxyphenyl) propionate, 2-hydroxybenzophenone, 2-hydroxyphenylbenzothiazole, hin Representative examples include durd amines, organic nickel compounds, salicylate, cinnamate derivatives, resorcinol monobenzoate, oxanilide, p-hydroxybenzoate, or mixtures thereof.

Viscosity modifiers are added for the purpose of controlling the viscosity of the composition, and include phenyl glycidyl ether, cresyl glycidyl ether, butyl glycidyl ether, 1 ,4-butadiene diol diglycidyl ether, salicylic acid (C ₇ H ₆ O ₃ ), benzyl alcohol (C ₇ H ₈ O), or a mixture thereof may be used.

Preferably, the additive may add 3 to 20% by weight of an additive mixture containing 1 to 5% by weight of an ultraviolet stabilizer, 3 to 10% by weight of a flame retardant, and 1 to 5% by weight of a silane coupling agent.

If the content of the ultraviolet stabilizer in the main part is less than 1% by weight, the anti-yellowing effect is insignificant, and if it exceeds 5% by weight, the problem of lowering the adhesion and impact resistance of the packaging material may occur, and the content of the flame retardant is less than 3% by weight. In this case, it is difficult to impart sufficient flame retardancy, and if it exceeds 10% by weight, the adhesive force and mechanical strength of the packaging material may decrease.If the content of the silane coupling agent is less than 1% by weight, the effect of improving the adhesion between different materials is insignificant, If it exceeds 5% by weight, it is difficult to expect an additional property improvement effect.

Meanwhile, the curing agent portion serves to form a packaging material by curing the epoxy resin included in the main portion, and a mixture including an amide-based curing agent, an amine-based curing agent, a curing accelerator, and a solvent may be used.

As the amide-based curing agent, a reactive polyamide resin, an imidazoline polyamide resin, or a mixture thereof may be used.

The amine-based curing agent has a chain structure and reacts with the epoxy resin to increase the crosslinking density, improve hardness and adhesion, and promote curing. Amine-based hardeners are polyoxypropylene diamine, metaxylene diamine, tetraethylene pentamine, trimethyl-hexamethylene diamine, isophorone diamine, metaphenylene diamine, dimethyl amine, diamino diphenyl sulfonamine, diethylene Amino propyl amine, modified cycloaliphatic amine, or mixtures thereof may be used.

The curing accelerator is used when fast curing and low-temperature curing of the epoxy resin is required. -OH, -COOH, -SO ₃ H, -CONH ₂ , -SO ₃ NH ₂ etc. are used at the end groups to accelerate the curing of the epoxy resin. Compounds that are present can be used. Curing agent accelerators include imidazoles such as 2-methylimidazole, 2-phenylimidazole, 2-isopropylimidazole, and 2-undecylimidazole, imidazole-modified epoxy, dibiyu and non-oil salts, Butyltriphenylphosphonium bromide, butyltriphenylphosphate oxalate, butyltriphenylphosphonium chloride, or mixtures thereof may be used.

The solvent added to the curing agent portion may be the same organic solvent as the above-described solvent.

In addition, the curing agent part may be a mixture containing 45 to 65% by weight of an amide-based curing agent, 20 to 30% by weight of an amine-based curing agent, 5 to 10% by weight of a curing accelerator, and 5 to 15% by weight of a solvent. The decrease in the degree of crosslinking of the epoxy resin can be compensated for by adding an amide-based curing agent.

Preferably, the curing agent part is a mixture of 45 to 65% by weight of a polyamide resin, isophoronediamine and metaxylenediamine in a weight ratio of 1:1 to 1:2, respectively, 20 to 30% by weight, 2-methylimida 5 to 15% by weight of a solvent mixture including 5 to 10% by weight of sol, 30 to 50 parts by weight of benzyl alcohol, 30 to 40 parts by weight of toluene, and 10 to 40 parts by weight of xylene may be used.

On the other hand, the filler is mixed with an epoxy resin to reinforce mechanical properties, durability, water resistance, etc. of the packaging material such as abrasion resistance and impact resistance, and serve to form a packaging material that prevents slipping. In addition, the filler is included in the form of particles and can act as a noise inhibitor in the packaging material, and by forming a surface roughness on the surface of the coating film of the packaging material, noise generated by friction can be reduced.

It is preferable to use a filler having an average particle size of 0.01 to 5 mm, and when the particle size of the filler is less than 0.1 mm, it is difficult to implement a sufficient anti-slip effect, and when it exceeds 5 mm, mechanical strength may be deteriorated. Preferably, the filler may be used having an average particle size of 0.5 to 2 mm.

The filler may be a mixture containing silica and illite.

Specifically, silica sand is used as a raw material for glass, foundry sand and other industrial materials. Due to weathering of the rock, other minerals are decomposed and disappeared, and only quartz remains or is transported. It is a sand component that prevents slipping on the packaging material and has a retroreflective effect. And added to reinforce mechanical properties of the packaging material such as abrasion resistance and impact resistance.

Silica sand can be used by mixing silica sand No. 4 (standard) with an average particle size of 1.2 to 1.5 ㎜ and silica sand No. 7 (standard) with an average particle size of 0.1 to 0.35 ㎜, respectively. It can be mixed and used in a weight ratio of 10:1 to 4:1, whereby the silica sand 7 having a small average particle size is placed between the silica sand 4 having a large average particle size, thereby increasing the ductility and preventing cracks occurring in the packaging material. Preventing effect can be achieved.

Illite is a mica-based mineral and is classified as aluminosilicate, including SiO ₂ , Al ₂ O ₃ , Fe ₂ O ₃ , CaO and MgO as its main components, and contains a large amount of micropores in the crystal structure. It has excellent adsorption of odor components generated from heavy metals and amines, improves the UV safety of packaging materials by decomposing free radicals generated by UV rays, generates negative ions, and has antibacterial properties, thus improving the physical properties of the packaging material coating film. , Preferably, in the present invention, the illite may be used by introducing a modified illite powder.

Specifically, in the case of natural illite powder, agglomeration easily occurs due to the layered structure, making it difficult to evenly disperse in the permeable aggregate packaging composition, making it difficult to expect the effect of improving physical properties. There is a problem that the removal efficiency of the formed free radicals is somewhat inferior.

In the present invention, the surface area of micropores is further increased and the surface area of micropores is further increased by modifying the illite particles so that the spacing of the layered structure of the illite particles is widened, and the modified illite powder having the layered gaps is wider By introducing illite powder, it is possible to form a coating film for packaging material with improved physical properties.

Specifically, modified illite is a natural illite powder modified by using an acidic aqueous solution containing an ammonium salt to greatly widen the interlayer spacing of illite.The interlayer spacing of ilite increases, thereby increasing the specific surface area and improving dispersibility. Various physical properties improvement effects can be expected for packaging materials.

More specifically, the modified illite is acid-treated using an acidic solution (pH 1 to pH 3) containing an ammonium salt, and the acid-treated illite is heat-treated, so that ammonium chloride is incorporated into the layered structure of illite. It can be modified to widen the gap.

To modify illite, homogeneously disperse ilite powder using a solvent such as ethanol, and then use a strong acidic solution of pH 1 to pH 3 such as sulfuric acid, hydrochloric acid, nitric acid, etc. to widen the layer gap of illite. In this way, the ammonium ions of the ammonium salt in the illite, where each layer is opened through the acid treatment, and the layer gap is widened, induces an ion exchange reaction with the metal ions in the layered structure of illite, and the ammonium salt is heated at 100 to 150°C. Ammonium ions contained in are introduced into the layered structure of illite, so that the layered spacing is increased at a rate of 1.1 to 3 times. At this time, the ammonium salt may be a mixture of ammonium chloride, ammonium siloxane, etc., and an acidic solution mixture in which the molar ratio of the ammonium salt and the strong acid is 1:1 to 1:5 may be used. Modified illite may be prepared by adding at a concentration of to 10 mole fraction (mol%).

According to a preferred embodiment of the present invention, the modified illite is first mixed with 100 g of natural illite powder with 500 mL of 70% water-containing ethanol to prepare an ethanol mixture in which ilite is uniformly dispersed, and hydrochloric acid in the prepared ethanol mixture (pH 2) 1,000 mL and 700 g of ammonium chloride are mixed and subjected to acid treatment, and the acid-treated mixture is heated at a temperature of 100 to 150° C. for 10 hours to prepare a modified illite powder. Modified illite powder should be used with silica sand. The modified illite powder modified to widen the layered gap as described above may be a powder having an average particle size of 0.01 to 0.5 mm.

As the above filler, a mixture containing 70 to 98 parts by weight of silica sand and 2 to 30 parts by weight of the modified illite fired body may be used.When the content of the modified illite fired body is less than 2 parts by weight, the anti-ultraviolet effect and the adsorption effect are It is insignificant, and if it exceeds 30 parts by weight, it is difficult to expect additional physical property improvement effects.

Preferably, the filler may be a mixture comprising 95 parts by weight of silica sand and 5 parts by weight of a modified illite fired body.

The filler may further include calcium carbonate, talc, aluminum hydroxide, silicate mineral, aluminum silicate mineral, or a mixture thereof, in addition to silica sand and illite, but is not limited thereto.

The permeable aggregate packaging composition according to the present invention as described above is excellent in water resistance and weather resistance, does not easily discolor by UV rays, can reduce the amount of organic solvents used, and can reduce the elution of odors and harmful substances, With its excellent anti-slip effect, it can form a pavement suitable for the creation of park sidewalks, trails, bicycle paths, plaza sidewalks, gyeonggyo paths, historical site sidewalks, cultural property sidewalks, and tourist site sidewalks.

In addition, the packaging material is made of natural aggregates such as silica sand and illite to sufficiently exhibit the anti-slip function of the material, but exhibits water permeability, moisture retention, and water resistance. In particular, it has excellent weather resistance and is not easily discolored by ultraviolet rays. , It is possible to reduce the use of organic solvents, reduce the elution of odors and harmful substances, and has excellent anti-slip effects, such as park sidewalks, trails, bicycle roads, plaza sidewalks, gyeonggyo passages, historic site sidewalks, cultural property sidewalks, It is possible to form a pavement layer suitable for the composition of a sidewalk to a tourist destination.

Hereinafter, the present invention will be described in more detail by way of examples.

The examples presented are only specific examples of the present invention, and are not intended to limit the scope of the present invention.

<Example>

A main material, a curing agent, and a filler were each blended in the composition as shown in Tables 1 and 2 below, and the blended main material, a curing agent, and a filler were mixed to prepare a permeable aggregate packaging composition.

In the composition of Table 1 below, the UV stabilizer is 2-(2'-hydroxy-3, 5'-di(1,1-dimethylbenzyl-phenyl)-benzotriazole, the flame retardant is triphenyl phosphate, and the silane coupling agent is γ -Aminopropyltrimethoxysilane (γ-aminopropyltrimethoxysilane) was used as an additive, and the solvent was a mixture containing 40% by weight of benzyl alcohol, 25% by weight of toluene, and 35% by weight of xylene. Powder was used.

In addition, the silica sand is mixed with silica sand No. 4 (standard) having an average particle size of 1.2 to 1.5 ㎜ and silica sand No. 7 (standard) having an average particle size of 0.1 to 0.35 mm at a weight ratio of 7:1, respectively. I did.

In the composition of Table 2 below, the UV stabilizer is 2-(2'-hydroxy-3, 5'-di(1,1-dimethylbenzyl-phenyl)-benzotriazole, the flame retardant is triphenyl phosphate, and the silane coupling agent is γ -Aminopropyltrimethoxysilane (γ-aminopropyltrimethoxysilane) was used as an additive, and the solvent was a mixture containing 40% by weight of benzyl alcohol, 25% by weight of toluene, and 35% by weight of xylene, Example 1-1, In the compositions 1-4 and 1-5, natural illite powder was used as illite, and in the compositions of Examples 2-1, 2-2, and 2-3, modified illite was used as illite.

Modified illite was prepared by mixing 100 g of natural illite powder with 500 mL of 70% aqueous ethanol to prepare an ethanol mixture in which ilite was uniformly dispersed, and 1,000 mL of hydrochloric acid (pH 2) and 700 g of ammonium chloride were mixed with the prepared ethanol mixture. Then, the acid-treated mixture was heated to a temperature of 100 to 150° C. for 10 hours, and then dried modified illite powder was used.

<Experimental Example> Evaluation of physical properties of packaging materials

In order to evaluate the physical properties of the packaging material, the permeable aggregate packaging composition prepared by the method according to the Examples and Comparative Examples was coated on the surface and then dried naturally for 2 days to form a test packaging material. Physical property evaluation was performed, and the results are shown in Table 3 below.

Evaluation of the physical properties of the packaging material was performed through the following method.

(1) Drying time measurement

According to the drying time test method of KS M 5000-2511, a permeable aggregate packaging composition was coated on the upper surface of a glass plate to a thickness of 3 mm and then naturally dried, and the drying time was measured.

After coating the glass plate with an automatic coating machine (0.003 inch), it was placed horizontally and naturally dried, and the drying time (unit: hour) of the composition was measured using a dry-hard method.

(2) Wear resistance evaluation

The abrasion resistance of the packaging material was performed according to the abrasion resistance test method of ASTM D-4060, and the cold-rolled steel sheet (KS D 3512) was treated with the pretreatment method (KSM 5000-1111. 4.4), and the CS-Abrasion Tester (Toyoseiki Seisakusho Co.) This is a method of measuring the weight loss when the specimen is rotated 1,000 with a load of 1 kg using a 10 wheel. Abrasion resistance was evaluated by the difference between the weight of the specimen before the test and the weight after abrasion (mg loss/1,000 cycles).

(3) Evaluation of adhesion

The adhesion of the pavement was carried out according to the adhesive strength test method for concrete adhesives of KSF 2761, and the permeable aggregate pavement composition was applied to the asphalt surface, cured at 20°C for 2 days, and then grooved with a 10 cm diameter core extractor. After attaching the adhesive plate to the upper surface of the packaging material, the adhesive strength was measured with a hydraulic tensile tester.

(4) Evaluation of slip resistance

The slip resistance of the packaging was carried out by spraying enough water to form a water film on the specimen using a British Pendulum Tester (BPT) according to the slip resistance test method of KSF 2375, and then repeating the test five times in succession and recording the results. . At this time, it was confirmed that the contact length (125 mm) was unchanged after spraying water, and the average value of the five BPN (British Pendulum Number) measurements at each point was evaluated as the BPN value (however, BPN used BPT for sliding friction resistance. This is a quantified value, meaning that the larger the value, the greater the frictional force).

(5) Evaluation of yellowing resistance

For the yellowing resistance of the packaging material, according to ASTM G-53, a QUV accelerated weathering tester (The Q-Panel Co.) was used, and a UV fluorescent lamp was used with a UV-B313 lamp (280∼315 ㎚), respectively, using cold rolled steel sheets. The color difference after the passage of time was evaluated.

Color difference measurement (ASTM G-154) expresses the difference between two colors from a visual concept to a numerical concept, and the smaller the color difference is, the better. In other words, the geometric distance of two colors in color space coordinates is displayed as a number. The diffuse reflectance measurement device was measured using a Spectro Color Meter (Nippon Denshoku Kogyo Co., SZ-Σ80 type), and the color difference was calculated using the following equation (however, in Equation 1, L is the brightness index of the Hunter color indicator, a and b refer to the chromaticness coefficient of the Hunter color indicator, respectively).

[Equation 1]

As shown in Table 3, it was confirmed that the physical properties of the packaging material formed with the permeable aggregate packaging composition increased the drying time and the abrasion resistance and adhesive strength were excellent as the content of the bisphenol A epoxy resin in the subject increased. It was confirmed that the yellowing resistance was similar.

In particular, in the case of the packaging material formed from the compositions of Examples 2-1 to 2-3 using the modified illite powder, it was confirmed that the yellowing resistance was greatly increased.Through this result, the packaging material was It was predicted that the UV resistance was greatly improved, and the yellowing resistance of the packaging material was improved by effectively removing radicals generated by UV rays.

In addition, the water-permeable aggregate packaging composition has excellent physical properties such as chemical resistance, solvent resistance, abrasion resistance, and adhesion, which are the characteristics of epoxy resins, and also has excellent yellowing resistance, so it can be used in outdoor and indoor sunlight exposure spaces where exposure to ultraviolet rays (sunlight) is concerned. It can be used without restrictions, and it has been confirmed that the physical properties are further improved compared to the existing epoxy-containing permeable aggregate packaging composition, so that the packaging construction work can be carried out without any concern about the occurrence of yellowing, regardless of the indoor and outdoor division.

(6) Hazardous substance dissolution evaluation

In addition, in order to confirm the effect of reducing the dissolution of harmful substances of the permeable aggregate packaging composition, the amount of harmful chemicals generated in the packaging was measured. The generation amount was measured by coating the permeable aggregate packaging composition at 20°C and 60% humidity, and then 2, 4, 8 hours passed, and then the amount of formaldehyde, toluene, and xylene released was measured through a gas detection tube. The amount of emission was measured using gas chromatography, and the results are shown in Table 4 and FIG. 1 below.

As shown in Table 4, in the case of the permeable aggregate packaging composition according to the Example, the fact that the elution of harmful gases such as formaldehyde, toluene, xylene, etc. was significantly reduced compared to the packaging material formed with the permeable aggregate packaging composition according to the comparative example. In particular, it was confirmed that the elution amount of harmful substances was significantly reduced in the packaging materials of Examples 2-1 to 2-3 using the modified illite powder.

Detailed description of the preferred embodiments of the present invention disclosed as described above has been provided to enable those skilled in the art to implement and implement the present invention. Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art will appreciate that various modifications and changes can be made to the present invention without departing from the scope of the present invention. For example, a person skilled in the art may use the components described in the above-described embodiments in a manner that combines them with each other. Thus, the invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The present invention may be embodied in other specific forms without departing from the spirit and essential features of the present invention. Therefore, the detailed description above should not be construed as restrictive in all respects and should be considered as illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention. The invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. In addition, an embodiment may be configured by combining claims that do not have an explicit citation relationship in the claims, or may be included as a new claim by amendment after filing.

Claims (5)

50 to 100 parts by weight of the main body part, 10 to 50 parts by weight of the hardener part, and 50 to 300 parts by weight of the filler part,
The main part contains 40 to 80% by weight of an epoxy resin, 1 to 20% by weight of a pigment, 3 to 20% by weight of an additive, and 5 to 40% by weight of a solvent,
The curing agent part includes 45 to 65% by weight of an amide-based curing agent, 20 to 30% by weight of an amine-based curing agent, 5 to 10% by weight of a curing accelerator, and 5 to 15% by weight of a solvent,
The filler includes silica sand and illite,
The illite,
A permeable aggregate packaging composition comprising a modified illite powder prepared by mixing natural illite powder with an acidic aqueous solution containing an ammonium salt, followed by acid treatment, and heating at a temperature of 100 to 150° C. for 5 to 24 hours. The method of claim 1,
The epoxy resin is a permeable aggregate packaging composition comprising a bisphenol A type epoxy resin and a bisphenol F type epoxy resin in a weight ratio of 1:1 to 1:3. The method of claim 1,
The additive is a permeable aggregate packaging composition comprising at least one selected from the group consisting of an ultraviolet stabilizer, a modifier, a silane coupling agent, an antifoaming agent, a leveling agent, a wetting agent, a flame retardant, a matting agent, an antioxidant and a viscosity adjusting agent. The method of claim 1,
The curing agent is an amine-based curing agent containing 45 to 65% by weight of an amide-based curing agent including a polyamide resin, isophoronediamine and metaxylenediamine in a weight ratio of 1:1 to 1:2, 2 -Permeable aggregate packaging composition comprising 5 to 10% by weight of a curing accelerator containing methylimidazole and 5 to 15% by weight of a solvent. delete

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