Abstract:
본 발명에 따른 인조대리석용 칩은 경화성 수지, 금속섬유 및/또는 무기섬유, 및 무기충전재로 이루어진다. 상기 금속섬유 및 무기섬유는 평균길이가 1 내지 6 mm이고, 평균입경이 10 내지 15 ㎛인 것이 바람직하다. 본 발명에 따른 인조대리석은 상기 인조대리석용 칩, 경화성 수지 매트릭스, 및 무기충전재를 주성분으로 하여 제조된다. 상기 경화성 수지는 아크릴계 수지, 불포화 폴리에스테르계 수지, 에폭시계 수지, 이들의 중합체, 또는 이들의 공중합체가 바람직하게 사용된다. 본 발명에 따른 인조대리석은 경화성 수지 매트릭스에 본 발명의 인조대리석용 칩, 무기충전재, 및 기타 첨가제를 혼합하여 인조대리석용 조성물을 제조하고; 상기 조성물을 25 내지 180 ℃에서 경화시키는 단계에 의하여 제조된다. 상기 조성물을 경화시키기 전에 탈포하는 단계를 더 포함할 수 있다.
Abstract:
본발명에따른인조대리석칩은 (a) 시드칩, (b) 제1 수지층, 및 (c) 제2 수지층으로이루어지고, 제1 수지층(b)은시드칩(a) 및제2 수지층(c)과색상이상이하다. 인조대리석칩은단면의단축과장축의비율이 1:1 내지 1:1.5이며, 비중이 1.60 내지 1.80인것이바람직하다. 본발명에따른인조대리석칩은 (A) 시드칩을준비하는단계, (B) 시드칩을제1 수지층시럽에혼합한후 시드칩상부의적어도일부에제1 수지층을진동도포하는단계, (C) 제1 수지층이도포된시드칩을제2 수지층시럽에혼합한후 제1 수지층이도포된시드칩상부의적어도일부에제2 수지층을진동도포하는단계, 및 (D) 제2 수지층이도포된시드칩을경화하는단계에의하여제조된다. 또한, 본발명에따른인조대리석은 (a') 경화성수지매트릭스, (b') 경화성수지, 무기충전재및 안료를포함하여제조된본 발명의인조대리석용칩 및 (c') 무기충전재로이루어진다. 본발명에따른인조대리석은 (A') 경화성수지매트릭스에본 발명의인조대리석용칩, 무기충전재, 및첨가제를혼합하여인조대리석용조성물을제조하는단계및 (B') 조성물을 25 내지 180 ℃에서경화시키는단계로이루어진다.
Abstract:
본 발명은 금속 입자의 평균직경이 2 내지 7 ㎜ 이고, 금속 입자의 내부 또는 외부에 위치한 기공의 평균직경이 0.1 내지 5 ㎜ 인 발포 또는 개방 세포 구조를 갖는 인조대리석용 칩을 사용함으로써, 상기 인조대리석용 칩이 인조대리석의 전체에 걸쳐 균일하게 분산되어 있고, 인조대리석을 경량화시키며, 표면 칩 이탈 문제를 개선한 인조대리석 및 그 제조방법에 관한 것이다.
Abstract:
PURPOSE: A modified silica particle, a manufacturing method thereof, an inorganic filler for an engineered stone including the same, an engineered stone including the same, and a manufacturing method of the engineered stone are provided to have excellent whiteness of a modified silica particle, and to have excellent whiteness of an engineered stone in spite that the content of the white pigment is not increased. CONSTITUTION: The whiteness measured according to ASTM E 313 of a modified silica particle is 98 or greater. The modified silica particle has a core-shell structure. The cores includes the silica particle. The shell includes hydroxyapatite, sodium silicate or their mixture. The modified silica particle is plasticized at 800-1500deg.C.
Abstract:
PURPOSE: A chip for artificial marble is provided to prevent surface chip separation, and to reduce the weight of the artificial marble by containing metal particles with a foamed or opened cell structure. CONSTITUTION: A chip for artificial marble contains metal particles with a foamed or opened cell structure. The average diameter of the metal particles is 2-7mm, and the average diameter of pores located inside or outside of the metal particles is 0.1-5mm. the Barcol hardness (GYZJ 934-1, Barber Colman company) of the metal particles is 20-55. The artificial marble contains: 100 parts of artificial marble matrix by weight; 1-20 parts of chips by weight for the artificial marble having a foamed or opened cell structure; 40-220 parts of inorganic filler by weight; and 0.0001-5 parts of pigment by weight.
Abstract:
본 발명은, SiO 2 분말, SiO 2 샌드 또는 SiO 2 칩을 포함하는 원료를 준비하는 단계 및 상기 원료를 900∼1300℃의 온도에서 열처리하여 상기 SiO 2 분말, SiO 2 샌드 또는 SiO 2 칩의 투광성을 감소시켜 백색도를 증가시키는 엔지니어드 스톤의 제조방법에 관한 것이다. 본 발명에 의하면, 석영(quartz)의 투광성이 억제되어 백색도가 향상되고, 내마모성 등의 우수한 물성을 가지며, 백색 충전제로 사용될 수 있는 엔지니어드 스톤을 용이하게 제조할 수 있다.
Abstract:
An artificial marble chip according to the present invention includes a seed chip (a), a first resin layer (b), and a second resin layer (c), wherein colors of the first resin layer (b) and the second resin layer (c) are different from each other. The artificial marble chip preferably has a section, in which a ratio of a minor axis to a major axis is in a range of 1:1 to 1:1.5, and a specific gravity of 1.60 to 1.80. The artificial marble chip according to the present invention is manufactured by the following steps: (A) preparing a seed chip, (B) mixing the seed chip into a first resin layer syrup and then vibration coating the first resin layer on at least a part of the upper part of the seed chip, (C) mixing the seed chip, which is coated with the first resin layer, into a second resin layer syrup and then vibration coating the second resin layer on at least a part of the upper part of the seed chip, which is coated with the first resin layer, and (D) hardening the seed chip, which is coated with the second resin layer. In addition, an artificial marble according to the present invention includes a curable resin matrix (a′), the artificial marble chip (b′) of the present invention manufactured using a curable resin, an inorganic filler and a pigment, and an inorganic filler (c′). The artificial marble according to the present invention is manufactured by the following steps: (A′) manufacturing an artificial marble composite by mixing the artificial marble chip of the present invention, the inorganic filler, and an additive in a curable resin matrix, and (B′) curing the composite at a temperature of 25 to 180°C.
Abstract:
PURPOSE: An engineered stone and a manufacturing method thereof are provided to increase whiteness and reduce transmission of the engineered stone by adding bone ash, sodalite, and bone chine to engineered stone, coating with sodium silicate, and heat treating thereof. CONSTITUTION: A manufacturing method of an engineered stone comprises the following steps: preparing raw materials including SiO2 powder, SiO2 sand, or SiO2 chip; and heat treating the raw material at 900-1300 deg. Celsius in order to reduce light-transmission rate of SiO2 powder, SiO2 sand, or SiO2 chip and increase whiteness. The raw material additionally includes 0.1-15 weight% of material bone ash based on 100 weight% of the raw materials. The raw materials additionally includes 0.1-15 weight% of sodalite based on 100 weight% of the raw materials. The raw materials additionally includes 0.1-15 weight% of bone china based on 100 weight% of the raw materials. The manufacturing method of the engineered stone additionally includes a step of coating the raw materials with sodium silicate before heat treatment.