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    • 1. 发明公开
    • 균일한 크기의 실리카 나노입자 대량 제조 방법
    • 大规模生产均匀二氧化硅纳米粒子的方法
    • KR1020130011505A
    • 2013-01-30
    • KR1020110072691
    • 2011-07-21
    • 서울대학교산학협력단
    • 현택환박원철권파
    • C01B33/18C01B33/12B82B3/00B82Y40/00
    • C01B33/18B82Y30/00B82Y40/00C01P2004/52C01P2004/64B82B3/00C01B33/12
    • PURPOSE: The manufacturing of a silica nanoparticle of uniform-size and the method thereof is provided to manufacture a silica nanoparticle of 5-50 nm in size through the process of regrowth of the silica nanoparticle to a size of 2 Mm whereby there is no agglomeration of the particle, is of uniform size and is well dispersible in an aqueous solution. CONSTITUTION: The manufacturing of silica nanoparticle of uniform-size comprises of the following steps. During the heating process, the solution is melted and a basic buffer solution is added. Next, the step of separating the generated silica nanoparticle is proceeded by selecting a silica precursor from a group consisting of tetra ethyl orthosilicate, tetramethoxysilane, and silicon tetrachloride. The organic solvent is selected from a group consisting of cyclohexane, hexane, a heptane and an octane. The pH of the basic buffer solution may be 9-14 and the heating temperature may be 25-80°C.
    • 目的:制备均匀二氧化硅纳米颗粒及其制备方法,以通过二氧化硅纳米颗粒的再生长过程将尺寸为5-50nm的二氧化硅纳米颗粒制成尺寸为2M的结晶,由此不存在聚集 的颗粒,具有均匀的尺寸并且在水溶液中很好地分散。 构成:均匀尺寸的二氧化硅纳米颗粒的制造包括以下步骤。 在加热过程中,将溶液熔化并加入碱性缓冲溶液。 接下来,通过从由原硅酸四乙酯,四甲氧基硅烷和四氯化硅组成的组中选择二氧化硅前体来进行分离产生的二氧化硅纳米颗粒的步骤。 有机溶剂选自环己烷,己烷,庚烷和辛烷。 碱性缓冲溶液的pH可以为9-14,加热温度可以为25-80℃。
    • 2. 发明公开
    • 탄소 나노 캡슐의 제조 방법
    • 形成碳纳米管的方法
    • KR1020120126664A
    • 2012-11-21
    • KR1020110044649
    • 2011-05-12
    • 서울대학교산학협력단
    • 박원철권파
    • C01B31/02B82B3/00B82B1/00B82Y40/00
    • C01B32/15B82B1/008B82B3/0038B82Y40/00
    • PURPOSE: A manufacturing method of carbon nanocapsule is provided to prevent carbon nanocapsule particles from coagulating and to improve the dispersibility of the particles in water-based materials. CONSTITUTION: A manufacturing method of carbon nanocapsule includes the following steps: silica nanoparticles are synthesized(S1); a carbon coating layer is formed on the surface of the silica nanoparticles(S2); a silica coating layer is formed on the carbon coating layer to form a carbon-silica complex(S3); the carbon coating layer is carbonized to form a carbonized coating layer(S4); and the silica nanoparticles and silica coating layer are removed(S5). The carbon coating layer is formed by introducing a carbon precursor into a dispersion containing the silica nanoparticles. The carbon precursor includes octadecyl trimethoxy silane. [Reference numerals] (AA) Start; (BB) End; (S1) Synthesizing silica nanoparticles; (S2) Forming a carbon coating layer; (S3) Forming a silica coating layer; (S4) Forming a carbonized coating layer by carbonizing the carbon coating layer; (S5) Removing the silica nanoparticles and the silica coating layer
    • 目的:提供碳纳米胶囊的制造方法,以防止碳纳米胶囊颗粒凝结,提高颗粒在水性材料中的分散性。 构成:碳纳米胶囊的制造方法包括以下步骤:合成二氧化硅纳米粒子(S1); 在二氧化硅纳米颗粒(S2)的表面上形成碳涂层; 在碳涂层上形成二氧化硅涂层以形成碳 - 二氧化硅复合物(S3); 将碳涂层碳化以形成碳化涂层(S4); 并除去二氧化硅纳米颗粒和二氧化硅涂层(S5)。 通过将碳前体引入含有二氧化硅纳米粒子的分散体中而形成碳涂层。 碳前体包括十八烷基三甲氧基硅烷。 (附图标记)(AA)开始; (BB)结束; (S1)合成二氧化硅纳米粒子; (S2)形成碳涂层; (S3)形成二氧化硅涂层; (S4)通过碳化碳涂层形成碳化涂层; (S5)除去二氧化硅纳米粒子和二氧化硅被覆层