WO2019088409A1 - Marbre artificiel ayant une solidité à la lumière améliorée - Google Patents

Marbre artificiel ayant une solidité à la lumière améliorée Download PDF

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Publication number
WO2019088409A1
WO2019088409A1 PCT/KR2018/008836 KR2018008836W WO2019088409A1 WO 2019088409 A1 WO2019088409 A1 WO 2019088409A1 KR 2018008836 W KR2018008836 W KR 2018008836W WO 2019088409 A1 WO2019088409 A1 WO 2019088409A1
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Prior art keywords
weight
artificial marble
binder
parts
mixture
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Ceased
Application number
PCT/KR2018/008836
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English (en)
Korean (ko)
Inventor
김혜원
조홍관
최영우
강은희
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LX Hausys Ltd
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LG Hausys Ltd
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Filing date
Publication date
Priority claimed from KR1020180090413A external-priority patent/KR102280744B1/ko
Application filed by LG Hausys Ltd filed Critical LG Hausys Ltd
Publication of WO2019088409A1 publication Critical patent/WO2019088409A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/06—Quartz; Sand
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/26—Carbonates
    • C04B14/28—Carbonates of calcium
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02—Treatment
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/04—Carboxylic acids; Salts, anhydrides or esters thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B26/18—Polyesters; Polycarbonates

Definitions

  • the present invention relates to a synthetic marble comprising a resin mixture composed of an unsaturated polyester resin, a vinyl aromatic monomer and an acrylic monomer as a binder for binding natural mineral particles constituting the main material of artificial marble,
  • the present invention relates to an improved artificial marble.
  • Natural stones such as granite and marble have been used as decorative materials since ancient times because of their beautiful surface patterns. Natural stone is a material showing high-quality texture, and its demand has been greatly increased in fields such as flooring, wall, kitchen top plate, toilet basin, etc. However, a variety of artificial marble is being developed because expensive natural stone alone can not satisfy the demand .
  • Artificial marble generally refers to a synthetic compound that combines natural minerals or minerals with resin components such as acrylic, unsaturated polyester, or epoxy or with cement, and adds pigments and additives to achieve the texture of natural stone. Typically, Acrylic artificial marble or engineered stone.
  • Acrylic artificial marble generally made of an acrylic resin is widely used as a counter table and various interior materials because of its excellent appearance and excellent workability, light weight and excellent strength compared with natural marble.
  • acrylic resin is widely used as a counter table and various interior materials because of its excellent appearance and excellent workability, light weight and excellent strength compared with natural marble.
  • engineered stones have been developed in which a mixture of natural mineral particles and a binder is compression molded under vibration or vacuum and vibration conditions in order to express the texture of natural stone.
  • engineered stone refers to artificial marble made of natural stone, quartz, glass, mirror, aluminum hydroxide, etc., and using 10 wt% or less of resin.
  • engineered stone is a main material of natural minerals, it has better natural stone texture than existing acrylic artificial marble, and has excellent properties such as chemical resistance, stain resistance, chemical resistance and scratch resistance.
  • engineered stone has very low absorption rate because it has almost no voids, it has high strength and does not cause any stain on chemical substances, so it is hygienic, so it can be used for surface finishing materials such as kitchen top plate, furniture finishing materials such as table and table, It is a high quality artificial marble that can be used.
  • the engineered stone may be manufactured to exhibit various colors and textures depending on the natural mineral particles to be mixed, the kind of the binder, the color of the pigment, the stirring process, and the like.
  • Korean Patent Laid-Open Publication No. 10-2012-0064233 discloses a method of manufacturing a semiconductor device in which a silicon dioxide powder, a sand or a chip is coated with sodium silicate and then heat-treated at a temperature of 900-1300 ⁇ to reduce light transmittance, Stone. ≪ / RTI >
  • Patent Document 1 KR 10-2012-0064233 A (June 19, 2012)
  • an object of the present invention to provide an artificial marble which is improved in light resistance and applicable to an outdoor building decoration material.
  • Artificial marble comprising 85-95% by weight of natural mineral particles and 5-15% by weight of binder, wherein the binder comprises 55-75% by weight of an unsaturated polyester resin, 5-22.5% of a vinyl aromatic monomer and 12.5-36% by weight of an acrylic monomer Wherein the weight ratio of the vinyl aromatic monomer and the acrylic monomer is 1: 1 to 1: 4, and the artificial marble has a color change (DELTA E) based on QUV 1000 hours of 1.0 to 5.0, .
  • DELTA E color change
  • the artificial marble of the present invention has a remarkably improved light resistance compared to the engineered stone of the related art, and is also applicable as an outdoor building decoration material.
  • the artificial marble of the present invention has a low water absorption, high degree of hardening and high bending strength, excellent physical properties, and an odor generated due to uncured monomers is small, thereby improving workability of a worker.
  • the present invention is a.
  • Artificial marble comprising 85-95% by weight of natural mineral particles and 5-15% by weight of binder, wherein the binder comprises 55-75% by weight of an unsaturated polyester resin, 5-22.5% of a vinyl aromatic monomer and 12.5-36% by weight of an acrylic monomer Wherein the weight ratio of the vinyl aromatic monomer and the acrylic monomer is 1: 1 to 1: 4, and the artificial marble has a color change (DELTA E) based on QUV 1000 hours of 1.0 to 5.0, .
  • DELTA E color change
  • the natural mineral particles may be obtained by pulverizing siliceous or calcareous natural minerals.
  • the siliceous natural mineral may be one or more selected from quartz, quartzite, silica sand, granite and porphyry, and the calcined natural mineral may be natural marble. have.
  • the natural mineral particles may have a particle diameter of 10 mu m - 3 mm or 10 mu m - 0.7 mm.
  • the particle size of the natural mineral particles can be measured using, for example, a mesh or SEM / TEM equipment.
  • the natural mineral particles may be a mixture of natural mineral particles having different particle diameters in order to minimize pores of the artificial marble.
  • the natural mineral particles may be a mixture of natural mineral particles having particle diameters of 10 to 0.1 mm (d1), 0.1 to 0.3 mm (d2), or 0.3 to 0.7 mm (d3).
  • the natural mineral particles may be natural mineral particles having a particle size of 10 to 0.1 mm (d1), 40 to 60 weight%, natural mineral particles having a particle size of 0.1 to 0.3 mm (d2) And 0.1 to 20% by weight of natural mineral particles having a particle size of -0.7 mm (d3).
  • the natural mineral particles may be included in the artificial marble in an amount of 85-95% by weight, or 87-93% by weight.
  • the feeling of natural stone is lowered, physical properties such as hardness and strength are lowered.
  • the binder content is relatively low and the bonding force between the natural mineral particles is weak, so that the workability is lowered.
  • the unsaturated polyester resin in the binder may be one produced by condensation reaction of an a,? -Unsaturated dibasic acid or an anhydride thereof with a polyhydric alcohol, or a condensation reaction of a saturated dibasic acid or an anhydride thereof with a polyhydric alcohol .
  • the a, -unsaturated dibasic acid include maleic acid, fumaric acid, itaconic acid, citraconic acid, choloro maleic acid and aconitic acid.
  • aconitic acid examples of the saturated dibasic acids include phthalic acid, isophthalic acid, terephthalic acid, hexahydrophthalic acid (hexahydrophthalic acid), and the like.
  • tetrahydrophthalic acid cyclohexane dicarboxylic acid, oxalic acid, malonic acid, succinic acid, glutaric acid, And may be at least one selected from adipic acid, trimellitic acid, and pyromellitic acid.
  • the polyol may be at least one selected from the group consisting of ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, neopentyl glycol, butanediol, butyl ethyl propanediol, trimethyl pentanediol, trimethylol propane, hexanediol, Dimethanol, glycerol, and pentaerythritol.
  • the weight average molecular weight of the unsaturated polyester resin may be 1,000 to 10,000 g / mol or 2,500 to 8,000 g / mol.
  • the unsaturated polyester resin may be 55-75 wt%, 60-75 wt%, or 60-70 wt% in the resin mixture.
  • the unsaturated polyester resin is contained in the above range, the viscosity of the binder is too low and the curing reaction does not occur well.
  • the unsaturated polyester resin is contained in an amount exceeding the above range, the viscosity of the binder is too high to be mixed with the natural mineral particles. .
  • the vinyl aromatic monomers are selected from the group consisting of styrene, a-methylstyrene, p-methylstyrene, o-methylstyrene, 4-propylstyrene, p-tert- butylstyrene, dimethylstyrene, vinyltoluene, vinylxylene, diphenylethylene and vinylnaphthalene , And the like.
  • the vinyl aromatic monomer may be styrene.
  • the acrylic monomer may be alkyl acrylate or alkyl methacrylate.
  • alkyl acrylate monomers include methyl acrylate, ethyl acrylate, n-propyl acrylate, isopropyl acrylate, n-butyl acrylate, isobutyl acrylate, sec-butyl acrylate, Butyl acrylate, butyl acrylate, amyl acrylate, isoamyl acrylate, n-hexyl acrylate, cyclohexyl acrylate, 2-ethylhexyl acrylate, pentadecyl acrylate, dodecyl acrylate, isobornyl acrylate, Acrylate, 2-hydroxyethyl acrylate, 2-methoxyethyl acrylate, glycidyl acrylate, and allyl acrylate may be used in combination with one or more selected from the group consisting of benzyl acrylate
  • alkyl methacrylate monomer examples include methyl methacrylate, ethyl methacrylate, n-propyl methacrylate, isopropyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, sec- methyl methacrylate, n-hexyl methacrylate, cyclohexyl methacrylate, 2-ethylhexyl methacrylate, pentadecyl methacrylate, dodecyl methacrylate, But are not limited to, acrylate, methacrylate, acrylate, isocyanate, acrylate, acrylate, isocyanate, acrylate, And allyl methacrylate can be used.
  • the acrylic monomer may be methyl methacrylate.
  • the monomer mixture of the vinyl aromatic monomer and the acrylic monomer may be 25-45 wt%, 25-40 wt%, or 30-40 wt% in the resin mixture.
  • the monomer mixture is contained in an amount less than the above range, the viscosity of the binder is too high to be mixed with the natural mineral particles, and when the monomer mixture is contained in the above range, the viscosity of the binder is too low and the curing reaction does not occur well. .
  • the vinyl aromatic monomer may be contained in the resin mixture in an amount of 5-22.5 wt% or 6.25-22.5 wt%, and the acrylic monomer may be contained in the resin mixture in an amount of 12.5-36 wt% or 12.5-33.75 wt%
  • the weight ratio of the monomer and the acrylic monomer may be 1: 1-1: 4, 1: 1-1: 3.5, or 1: 1-1: 3.
  • the weight ratio of the vinyl aromatic monomer and the acrylic monomer in the resin mixture is less than the above range (i.e., the weight of the vinyl aromatic monomer is larger than the weight of the acrylic monomer), the effect of improving the light resistance is insignificant. It can be in range.
  • the binder may further comprise a curing agent, a curing catalyst, and a binder.
  • the curing agent may be an organic peroxide compound or an azo compound, which may be included for the curing reaction of the binder.
  • the organic peroxide compound may be at least one selected from diacyl peroxide, hydroperoxide, ketone peroxide, peroxy ester, peroxyketal, dialkyl peroxide, alkyl perester, percarbonate and peroxydicarbonate .
  • solvent examples include benzoyl peroxide, dicumyl peroxide, butyl hydroperoxide, cumyl hydroperoxide, methyl ethyl ketone peroxide, t-butyl peroxymaleic acid, t-butyl hydroperoxide, acetyl peroxide, , t-butyl peroxyneodecanoate, or t-amyl peroxy 2-ethyl hexanoate, but is not necessarily limited thereto.
  • the azo-based compound may be azobisisobutyronitrile but is not necessarily limited thereto.
  • the curing agent may be contained in an amount of 1 to 2 parts by weight based on 100 parts by weight of the resin mixture. When the curing agent is contained in the range below the above range, hardening of the binder hardly occurs, and when the curing agent is contained in the above range, discoloration of the binder may occur.
  • the curing catalyst may be included in order to accelerate curing of the binder at a low temperature.
  • the curing catalyst may be a metal soap such as cobalt, vanadium or manganese, a tertiary amine, a quaternary ammonium salt or a mercaptan, It may be more than two kinds.
  • the curing catalyst may be included in an amount of 0.05-0.5 parts by weight based on 100 parts by weight of the resin mixture. When the curing catalyst is contained in the above range, curing is not promoted. When the curing catalyst is contained in the above range, discoloration of the binder may occur.
  • the binder may be included in order to improve the binding force between the binder and the natural mineral particles, and may be a silane-based or silicate-based binder.
  • the binder may be contained in an amount of 1 to 3 parts by weight based on 100 parts by weight of the resin mixture. When the binder is contained in the range below the above range, the binding force with the natural mineral particles decreases, and when the binder is included in the range above, the cost of the raw material increases .
  • the binder may further include one or more selected from pigments, ultraviolet absorbers, flame retardants, multifunctional crosslinking agents, fillers, polymerization inhibitors and antioxidants, optionally in accordance with necessity, The kind and content thereof are not particularly limited.
  • the binder may be included in the artificial marble in an amount of 5-15% by weight and 7-13% by weight.
  • the binder is contained in an amount less than the above range, the bonding force between the natural mineral particles is weak and the workability is deteriorated.
  • the binder is contained in the above range, the natural mineral particle content is relatively low and the physical properties such as hardness and strength are lowered. And may be included within the above range.
  • the viscosity of the binder may be 2-10 Poise or 2.5-8 Poise.
  • the viscosity of the binder can be measured using a Brookfield viscometer at 25 ⁇ ⁇ . If the viscosity of the binder is less than the above range, it is difficult to use because the viscosity is low. If it exceeds the above range, mixing with natural mineral particles is difficult and bubbles may be formed in the artificial marble.
  • the artificial marble of the present invention as described above is obtained by adding a curing agent, a curing catalyst and a binder to a resin mixture composed of 55-75 wt% of an unsaturated polyester resin, 5-22.5 wt% of a vinyl aromatic monomer and 12.5-36 wt% of an acrylic monomer, And then mixed with the natural mineral particles uniformly and compression molded and cured under vibration or vacuum and vibration.
  • the acrylic monomer in the artificial marble may be contained in an amount of 1-6% by weight or 1-5% by weight.
  • the artificial marble of the present invention thus produced may have a light resistance (DELTA E) of 1.0-5.0.
  • the light resistance can be measured by a color change (DELTA E) after 1000 hours of UV irradiation (UV light amount: 0.6 W / m 2 , temperature: 50 ° C). Since the artificial marble of the present invention has light resistance within the above range, it is also applicable as an outdoor building decoration material. At this time, in order to have the light resistance of the above range without changing the value of the basic properties including the degree of hardening, the water absorption rate and the bending strength of the artificial marble, each component contained in the artificial marble is within the range of the numerical range of the present invention Should be included.
  • the artificial marble of the present invention may have a degree of curing of 97% or more.
  • the degree of cure can be measured by using a DSC (Differential Scanning Calorimetry). Since the artificial marble of the present invention has a degree of curing in the above range, it has an excellent physical property and an odor generated due to the uncured monomer, thereby improving the workability of a worker.
  • the artificial marble of the present invention may have an absorption rate of 0.1% or less.
  • the water absorption rate can be measured according to ASTM C97 standard.
  • the artificial marble of the present invention has an effect of being applicable to a kitchen top plate or an outdoor building decoration material which is exposed to moisture from time to time by having an absorption rate in the above range.
  • the artificial marble of the present invention may have a flexural strength of 70-100 MPa or 70-90 MPa.
  • the flexural strength can be measured according to ASTM D790 standard.
  • the artificial marble of the present invention has a flexural strength in the above-mentioned range, so that it has an excellent mechanical property.
  • a binder 10 prepared by mixing 1.5 parts by weight of a curing agent, 0.2 parts by weight of a curing catalyst and 2 parts by weight of a binder, was added to 100 parts by weight of a resin mixture consisting of 65% by weight of an unsaturated polyester resin, 17.5% by weight of styrene and 17.5% by weight of methyl methacrylate.
  • a resin mixture consisting of 65% by weight of an unsaturated polyester resin, 17.5% by weight of styrene and 17.5% by weight of methyl methacrylate.
  • Matture of natural quartz particles having a particle size of 10 to 0.1 mm (d1), 0.1 to 0.3 mm (d2) and 0.3 to 0.7 mm (d3) in a weight ratio of 5: 4: 1 90% by weight of the mixture was added to the mold, and the mixture was placed in a mold and vibrated for 3 minutes in a vertical vibration mode under a vacuum condition. The mixture was pressed into a plate shape and then cured in an oven at 120 ° C to
  • a binder 10 prepared by mixing 1.5 parts by weight of a curing agent, 0.2 parts by weight of a curing catalyst and 2 parts by weight of a binder, was added to 100 parts by weight of a resin mixture consisting of 65% by weight of unsaturated polyester resin, 8.75% by weight of styrene and 26.25% by weight of methyl methacrylate.
  • a binder 10 prepared by mixing 1.5 parts by weight of a curing agent, 0.2 parts by weight of a curing catalyst and 2 parts by weight of a binder, was added to 100 parts by weight of a resin mixture consisting of 75% by weight of an unsaturated polyester resin, 12.5% by weight of styrene and 12.5% by weight of methyl methacrylate.
  • a binder 10 prepared by mixing 1.5 parts by weight of a curing agent, 0.2 parts by weight of a curing catalyst and 2 parts by weight of a binder, was added to 100 parts by weight of a resin mixture consisting of 75% by weight of unsaturated polyester resin, 6.25% by weight of styrene and 18.75% by weight of methyl methacrylate.
  • a binder 10 prepared by mixing 1.5 parts by weight of a curing agent, 0.2 parts by weight of a curing catalyst and 2 parts by weight of a binder, was added to 100 parts by weight of a resin mixture consisting of 55% by weight of an unsaturated polyester resin, 22.5% by weight of styrene and 22.5% by weight of methyl methacrylate.
  • a binder 10 prepared by mixing 1.5 parts by weight of a curing agent, 0.2 parts by weight of a curing catalyst and 2 parts by weight of a binding agent was added to 100 parts by weight of a resin mixture consisting of 55% by weight of unsaturated polyester resin, 11.25% by weight of styrene and 33.75% by weight of methyl methacrylate (Mixture of natural quartz particles having a particle size of 10 to 0.1 mm (d1), 0.1 to 0.3 mm (d2) and 0.3 to 0.7 mm (d3) in a weight ratio of 5: 4: 1) 90% by weight, and the mixture was placed in a mold and subjected to vibration in an up-and-down vibration for 3 minutes under a vacuum condition to form a plate in the form of a plate. The plate was then cured in an oven at 120 ° C to produce the artificial marble of Example 6.
  • a binder 10 prepared by mixing 1.5 parts by weight of a curing agent, 0.2 parts by weight of a curing catalyst and 2 parts by weight of a binder, was added to 100 parts by weight of a resin mixture consisting of 65% by weight of an unsaturated polyester resin, 26.25% by weight of styrene and 8.75% by weight of methyl methacrylate.
  • a resin mixture consisting of 65% by weight of an unsaturated polyester resin and 35% by weight of methyl methacrylate
  • 10% by weight of a binder prepared by mixing 1.5 parts by weight of a curing agent, 0.2 parts by weight of a curing catalyst and 2 parts by weight of a binder, (Mixture of natural quartz particles having particle diameters of 10 ⁇ to 0.1 mm (d1), 0.1 to 0.3 mm (d2) and 0.3 to 0.7 mm (d3) at a weight ratio of 5: 4: 1)
  • the mixture was put into a mold and subjected to vibration in an up-and-down vibration under a vacuum condition for 3 minutes while being pressed to form a plate, and then cured in an oven at 120 ° C to produce artificial marble of Comparative Example 3.
  • a resin mixture consisting of 80% by weight of an unsaturated polyester resin, 10% by weight of styrene and 10% by weight of methyl methacrylate was mixed with 1.5 parts by weight of a curing agent, 0.2 parts by weight of a curing catalyst and 2 parts by weight of a binder, (Mixture of natural quartz particles having a particle size of 10 to 0.1 mm (d1), 0.1 to 0.3 mm (d2) and 0.3 to 0.7 mm (d3) in a weight ratio of 5: 4: 1) 90% by weight, and the mixture was placed in a mold and subjected to vibration in an up-and-down vibration for 3 minutes under a vacuum condition to form a plate in the form of a plate and then cured in an oven at 120 ° C to produce artificial marble of Comparative Example 5.
  • a resin mixture consisting of 80% by weight of an unsaturated polyester resin, 5% by weight of styrene and 15% by weight of methyl methacrylate was mixed with 1.5 parts by weight of a curing agent, 0.2 parts by weight of a curing catalyst and 2 parts by weight of a binder, (Mixture of natural quartz particles having a particle size of 10 to 0.1 mm (d1), 0.1 to 0.3 mm (d2) and 0.3 to 0.7 mm (d3) in a weight ratio of 5: 4: 1) 90% by weight, and the mixture was put into a mold and subjected to vibration in an up-and-down vibration for 3 minutes under a vacuum condition to form a plate in the form of a plate and then cured in an oven at 120 ⁇ to produce artificial marble of Comparative Example 6.
  • a binder prepared by mixing 1.5 parts by weight of a curing agent, 0.2 parts by weight of a curing catalyst and 2 parts by weight of a binder in 100 parts by weight of a resin mixture consisting of 50% by weight of an unsaturated polyester resin and 50% by weight of styrene, 90% by weight of a mixture of natural quartz grains having a particle size of -0.1 mm (d1), 0.1-0.3 mm (d2) and 0.3-0.7 mm (d3) in a weight ratio of 5: 4: 1) Molded into a plate under a vacuum condition while being vibrated for 3 minutes in an up-and-down vibration mode, and then cured in an oven at 120 ° C. to produce artificial marble of Comparative Example 8.
  • a binder 10 prepared by mixing 1.5 parts by weight of a curing agent, 0.2 parts by weight of a curing catalyst and 2 parts by weight of a binding agent was added to 100 parts by weight of a resin mixture consisting of 50% by weight of an unsaturated polyester resin, 25% by weight of styrene and 25% by weight of methyl methacrylate.
  • a binder 10 prepared by mixing 1.5 parts by weight of a curing agent, 0.2 parts by weight of a curing catalyst and 2 parts by weight of a binder, was added to 100 parts by weight of a resin mixture consisting of 50% by weight of unsaturated polyester resin, 12.5% by weight of styrene and 37.5% by weight of methyl methacrylate.
  • the light resistance was measured using a spectrophotometer (Konica Minolta CM-3500D) after 1000 hours of UV irradiation (UV light amount: 0.6 W / m 2 , temperature: 50 ° C)
  • the viscosity of the binder was measured at 25 ⁇ using a Brookfield viscometer (60 rpm, spindle).
  • Example 1 65 17.5 17.5 3.3 99.5% radish 0.04% 78 5.8
  • Example 2 65 8.75 26.25 1.8 99.0% radish 0.04% 76 5.8
  • Example 3 75 12.5 12.5 4.0 99.0% radish 0.05% 75 7.1
  • Example 4 75 6.25 18.75 3.7 98.4% radish 0.05% 73 7.1
  • Example 5 55 22.5 22.5 4.3 99.0% radish 0.05% 75 3.0
  • Example 6 55 11.25 33.75 4.6 98.5% radish 0.05% 73 3.0
  • Comparative Example 1 65 35 6.9 99.9% radish 0.04% 75 5.8
  • Comparative Example 2 65 26.25 8.75 5.8 99.7% radish 0.04% 76 5.8 Comparative Example 3 65 35 1.7 94.0%

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Macromonomer-Based Addition Polymer (AREA)

Abstract

La présente invention concerne le marbre artificiel et, plus particulièrement, le marbre artificiel qui a une solidité à la lumière améliorée, en incluant un mélange de résine comprenant des résines de polyester insaturé, des monomères aromatiques vinyliques, et des monomères de monomères acryliques, en tant que liant pour lier des particules minérales naturelles, qui constituent le matériau principal du marbre artificiel.
PCT/KR2018/008836 2017-11-02 2018-08-03 Marbre artificiel ayant une solidité à la lumière améliorée Ceased WO2019088409A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20170145077 2017-11-02
KR10-2017-0145077 2017-11-02
KR1020180090413A KR102280744B1 (ko) 2017-11-02 2018-08-02 내광성이 개선된 인조대리석
KR10-2018-0090413 2018-08-02

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WO2019088409A1 true WO2019088409A1 (fr) 2019-05-09

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Citations (5)

* Cited by examiner, † Cited by third party
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JP2002121238A (ja) * 2000-10-17 2002-04-23 Dainippon Ink & Chem Inc 耐候性に優れる人工大理石およびその組成物
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JP2002003261A (ja) * 2000-06-16 2002-01-09 Matsushita Electric Ind Co Ltd 人工大理石成形体
JP2002121238A (ja) * 2000-10-17 2002-04-23 Dainippon Ink & Chem Inc 耐候性に優れる人工大理石およびその組成物
KR100562634B1 (ko) * 2005-03-25 2006-03-20 주식회사 엘지화학 줄무늬 칩을 이용한 인조대리석 및 이의 제조방법
KR100715606B1 (ko) * 2005-12-30 2007-05-10 제일모직주식회사 고투명 인조대리석 마블칩, 그 제조방법 및 이를 이용한 인조대리석
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