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    • 1. 发明公开
    • 수산화아파타이트 나노분말의 제조방법
    • 纳米尺寸的羟基磷灰石粉的制备
    • KR1020040051381A
    • 2004-06-18
    • KR1020020079307
    • 2002-12-12
    • 성윤모장경태
    • 성윤모장경태황상호성훈김대희이진경이정철박경수이용지아닐쿠마박하나
    • B82B3/00B82Y40/00
    • C01B25/32B82Y40/00C01P2004/64
    • PURPOSE: Provided is a preparation method of nano-sized hydroxyapatite powder with high purity and biological stability by controlling the amount of tri-calcium phosphate(TCP) in coprecipitation process. CONSTITUTION: The nano-sized hydroxyapatite(HAp, Ca10(PO4)6(OH)2) is prepared by the following steps of: preparing Ca-precursor solution and P-precursor solution by dissolving calcium nitrate(or calcium hydroxide) and ammonium phosphate in water to be a Ca/P ratio of 1.67-2.0; adding NH4OH to each solution to get calcium nitrate slurry(a first solution) and ammonium phosphate slurry(a second solution), wherein the pH of the slurry is 10.4; dropping the second solution to the first solution to form hydroxyapatite; stirring for 1hr, standing and filtering to get hydroxyapatite gel; calcining the gel at 250-300deg.C for 1-3hrs and crystallizing at 800-1200deg.C over 0.5hrs; ball-milling prepared hydroxyapatite powder. The prepared hydroxyapatite powder has less than 100nm in size.
    • 目的:通过控制共沉淀过程中三磷酸钙(TCP)的量,制备了具有高纯度和生物稳定性的纳米级羟基磷灰石粉末的制备方法。 构成:通过以下步骤制备纳米级羟基磷灰石(HAp,Ca10(PO4)6(OH)2):通过将硝酸钙(或氢氧化钙)和磷酸铵溶解在一起制备Ca前体溶液和P-前体溶液 在水中的Ca / P比为1.67-2.0; 向每个溶液中加入NH 4 OH以得到硝酸钙浆料(第一溶液)和磷酸铵浆料(第二溶液),其中浆料的pH为10.4; 将第二溶液滴加到第一溶液中以形成羟基磷灰石; 搅拌1小时,静置和过滤得到羟基磷灰石凝胶; 将凝胶在250-300℃下煅烧1-3小时,并在0.5-100℃下结晶0.5小时; 球磨制备的羟基磷灰石粉末。 制备的羟基磷灰石粉末的尺寸小于100nm。
    • 7. 发明公开
    • 공석출법을 이용한 수산화아파타이트 복합나노분말의제조방법
    • 通过共沉淀制备纳米尺寸的羟基磷灰石复合粉末
    • KR1020040051382A
    • 2004-06-18
    • KR1020020079308
    • 2002-12-12
    • 성윤모
    • 성윤모장경태황상호성훈김대희이진경이정철박경수이용지아닐쿠마박하나
    • B82B3/00B82Y40/00
    • C01B25/32B82Y40/00C01P2004/64
    • PURPOSE: Provided is a simple preparation method of nano-sized hydroxyapatite composite powder, HAp/YSZ powder, with excellent fracture toughness and abrasion resistance by co-precipitation process. CONSTITUTION: The nano-sized hydroxyapatite(HAp, Ca10(PO4)6(OH)2) is prepared by the following steps of: preparing Ca-precursor solution and P-precursor solution by dissolving calcium nitrate(or calcium hydroxide) and ammonium phosphate in water to be a Ca/P ratio of 1.67-2.0; adding NH4OH to each solution to get calcium nitrate slurry(a first solution) and ammonium phosphate slurry(a second solution); preparing zirconium nitrate slurry(a third solution) and yttrium nitrate slurry(a fourth solution) by dissolving zirconium nitrate hydrates and yttrium nitrate hydrates in water, and adding NH4OH to each solution to be pH10.4; dropping the fourth solution to the third solution to form hydroxyapatite/yttrium stabilized zirconia(HAp/YSZ) for 1hr, standing and filtering to get HAp/YSZ gel; calcining the gel at 250-300deg.C for 1-3hrs and crystallizing at 800-1200deg.C over 0.5hrs; and wet-ball milling prepared hydroxyapatite powder.
    • 目的:提供纳米级羟基磷灰石复合粉末HAp / YSZ粉末的制备方法,具有优异的断裂韧性和共沉淀过程的耐磨性能。 构成:通过以下步骤制备纳米级羟基磷灰石(HAp,Ca10(PO4)6(OH)2):通过将硝酸钙(或氢氧化钙)和磷酸铵溶解在一起制备Ca前体溶液和P-前体溶液 在水中的Ca / P比为1.67-2.0; 向每个溶液中加入NH 4 OH以得到硝酸钙浆液(第一溶液)和磷酸铵浆料(第二溶液); 通过将硝酸锆水合物和硝酸钇水合物溶解在水中制备硝酸锆浆液(第三溶液)和硝酸钇浆液(第四溶液),并将NH 4 OH加入到每个溶液中为pH10.4; 将第四溶液滴加到第三溶液中,形成羟基磷灰石/钇稳定氧化锆(HAp / YSZ)1小时,静置和过滤得到HAp / YSZ凝胶; 将凝胶在250-300℃下煅烧1-3小时,并在0.5-100℃下结晶0.5小时; 和湿球磨制备羟基磷灰石粉末。
    • 8. 发明授权
    • 티타니아 광촉매 분말의 결정구조 및 이의 제조공정
    • 티타아아광촉매분말의결정구조및이의제조공정
    • KR100432873B1
    • 2004-06-01
    • KR1020030084454
    • 2003-11-26
    • 성윤모(주)나노텍
    • 성윤모이진경이용지박하나황상호홍순진성훈
    • B01J21/06B82Y30/00
    • PURPOSE: A nanocrystalline titania photocatalyst powder in which anatase phase and rutile phase are formed in a dual structure of core shell, a micro space is formed between the core and shell, and micro pores are formed inside the core is provided, and a preparation process of the titania photocatalyst powder is provided. CONSTITUTION: The process comprises first process of preparing a mixed solution of Ti(OPr)4-AcAc-PEO and preparing micro spherical amorphous TiO2-PEO mixed powder by bonding of nano titanium and oxygen from the mixed solution of Ti(OPr)4-AcAc-PEO; second process of heat treating the amorphous TiO2-PEO mixed powder so that the amorphous TiO2-PEO mixed powder is phase transformed into crystalline titania powder in which anatase phase and rutile phase are formed in a core shell structure; and third process of cooling the titania powder after performing the heat treatment so that the phase transformed core shell structure is separated, wherein the first process comprises a process (a) of preparing a PEO solution, a process (b) of preparing a titanium-isopropoxide solution, a process (c) of preparing a mixed solution of the PEO solution and titanium-isopropoxide solution, a process (d) of first agitating the mixed solution, a process (e) of second agitating the mixture after adding deionized water and catalyst agent to the first agitated mixed solution, a process (f) of preparing a mixed solution in which TiO2-PEO is formed in the sol state by aging the second agitated mixed solution, a process of (g) of filtering the prepared mixed solution in which TiO2-PEO is formed in the sol state, and a process (h) of TiO2-PEO mixed powder by drying the filtered mixed solution in which TiO2-PEO is formed in the sol state.
    • 目的:一种纳米晶二氧化钛光催化剂粉末,其中在核壳的双重结构中形成锐钛矿相和金红石相,在核壳之间形成微空间,并且在核的内部形成微孔,以及制备过程 提供二氧化钛光催化剂粉末。 本发明涉及一种制备Ti(OPr)4-AcAc-PEO混合溶液的第一工艺,通过将Ti(OPr)4 -AcA-PEO混合溶液中的纳米钛与氧气结合而制备微球形非晶态TiO 2 -PEO混合粉末, 乙酰丙酮-PEO; 第二步,热处理无定形TiO 2 -PEO混合粉末,使得无定形TiO 2 -PEO混合粉末相变成结晶二氧化钛粉末,其中在核壳结构中形成锐钛矿相和金红石相; (a)制备PEO溶液的方法,(b)制备钛基复合材料的方法,其中所述方法包括以下步骤:(a) 异丙醇盐溶液,制备PEO溶液和异丙醇钛溶液的混合溶液的方法(c),首先搅拌混合溶液的方法(d),加入去离子水后再搅拌混合物的方法(e)和 (f)制备混合溶液,其中通过老化第二搅拌混合溶液在溶胶状态下形成TiO 2 -PEO;(g)过滤所制备的混合溶液 在溶胶状态下形成TiO 2 -PEO的过滤混合溶液和TiO 2 -PEO混合粉末的过程(h)。
    • 9. 发明公开
    • 티타니아 광촉매 분말의 결정구조 및 이의 제조공정
    • 具有核壳结构的纳米晶钛酸钙粉末及其制备方法
    • KR1020030096171A
    • 2003-12-24
    • KR1020030084454
    • 2003-11-26
    • 성윤모(주)나노텍
    • 성윤모이진경이용지박하나황상호홍순진성훈
    • B01J21/06B82Y30/00
    • B01J37/0018B01J21/063B01J35/004B82Y30/00
    • PURPOSE: A nanocrystalline titania photocatalyst powder in which anatase phase and rutile phase are formed in a dual structure of core shell, a micro space is formed between the core and shell, and micro pores are formed inside the core is provided, and a preparation process of the titania photocatalyst powder is provided. CONSTITUTION: The process comprises first process of preparing a mixed solution of Ti(OPr)4-AcAc-PEO and preparing micro spherical amorphous TiO2-PEO mixed powder by bonding of nano titanium and oxygen from the mixed solution of Ti(OPr)4-AcAc-PEO; second process of heat treating the amorphous TiO2-PEO mixed powder so that the amorphous TiO2-PEO mixed powder is phase transformed into crystalline titania powder in which anatase phase and rutile phase are formed in a core shell structure; and third process of cooling the titania powder after performing the heat treatment so that the phase transformed core shell structure is separated, wherein the first process comprises a process (a) of preparing a PEO solution, a process (b) of preparing a titanium-isopropoxide solution, a process (c) of preparing a mixed solution of the PEO solution and titanium-isopropoxide solution, a process (d) of first agitating the mixed solution, a process (e) of second agitating the mixture after adding deionized water and catalyst agent to the first agitated mixed solution, a process (f) of preparing a mixed solution in which TiO2-PEO is formed in the sol state by aging the second agitated mixed solution, a process of (g) of filtering the prepared mixed solution in which TiO2-PEO is formed in the sol state, and a process (h) of TiO2-PEO mixed powder by drying the filtered mixed solution in which TiO2-PEO is formed in the sol state.
    • 目的:一种纳米晶体二氧化钛光催化剂粉末,其中锐钛矿相和金红石相形成在核心壳的双重结构中,在芯和壳之间形成微小空间,并且在芯内形成微孔,制备过程 的二氧化钛光催化剂粉末。 构成:该方法包括通过Ti(OPr)4-AcAc-PEO的混合溶液与Ti(OPr)4-AcAc-PEO的混合溶液的混合溶液制备微球状无定形TiO 2 -PEO混合粉末的第一工序, 乙酰丙酮-PEO; 对无定形TiO 2 -PEO混合粉末进行热处理的第二种方法,使无定形TiO 2 -PEO混合粉末相转化成结晶二氧化钛粉末,其中在壳壳结构中形成锐钛矿相和金红石相; 以及在进行热处理之后冷却所述二氧化钛粉末以使所述相变芯壳结构分离的第三工艺,其中所述第一工艺包括制备PEO溶液的方法(a),制备钛 - 异丙氧基溶液,制备PEO溶液和异丙醇钛溶液的混合溶液的方法(c),首先搅拌混合溶液的方法(d),在加入去离子水后第二次搅拌混合物的方法(e)和 催化剂到第一搅拌混合溶液的方法(f)通过使第二搅拌的混合溶液老化来制备溶胶状态形成TiO 2 -PPE的混合溶液的方法(f),将制备的混合溶液 其中TiO 2 -PEO以溶胶状态形成,和通过干燥TiO 2 -PEO混合粉末的方法(h),其中形成溶胶状态的TiO 2 -PEO的过滤混合溶液。
    • 10. 发明公开
    • 셀시안결정화유리 조성물
    • CELSIAN结晶玻璃组合物
    • KR1020000032911A
    • 2000-06-15
    • KR1019980049546
    • 1998-11-18
    • 성윤모
    • 성윤모
    • C03C3/04
    • C03C10/0036
    • PURPOSE: A composition of celiac crystallized glass is provided to improve the easy of preparing thereof, the lower of the melting temperature of source materials, the complete crystallization of monocelsian and the reduction of the amounts of energy used. CONSTITUTION: The desired compositions are characterized in that the SA2S is combined with the Al2O3, B2O3 and TiO2, in any their formulation ratios. In particulars, the SA2S is first formulated with 3 to 12 wt% of Al2O3, the resulting (SA2S-A) is combined with 2 to 5 wt% of B2O3, and to the resulting (SA2S-A)B is added 2 to 7 wt% of TiO2 to give the desired (SA2S-A)BT. Thereby, in some compositions generated from by formulating SrO-Al2O3-SiO2(i.e., SA2S) as one base compound, in order, with Al2O3(SA2S-A), B2O3((SA2S-A)B) and TiO2((SA2S-A)BT), especially the (SA2S-A)B and (SA2S-A)BT are found that their practical melting point and crystallizing peak temperature are remarkably lower than those of the conventional SA2S. In addition, approximately 100% pure monocelsian may be formed from the (SA2S-A)B and (SA2S-A)BT at 1100°C in only 1 hour.
    • 目的:提供乳糜结晶玻璃的组合物以改善其制备的容易性,源材料的熔融温度越低,单体的完全结晶和所用能量的减少。 构成:所需组合物的特征在于SA2S以任何配方比与Al2O3,B2O3和TiO2组合。 具体而言,首先用3〜12重量%的Al 2 O 3配制SA2S,得到的(SA2S-A)与2〜5重量%的B 2 O 3组合,向所得的(SA2S-A)B中加入2〜7 重量%的TiO 2以得到所需的(SA2S-A)BT。 因此,在通过配制作为一种碱性化合物的SrO-Al 2 O 3 -SiO 2(即SA 2 S)产生的一些组合中,依次使用Al2O3(SA2S-A),B2O3((SA2S-A)B)和TiO2((SA2S- A)BT),特别是(SA2S-A)B和(SA2S-A)BT,发现它们的实际熔点和结晶峰值温度明显低于常规SA2S。 另外,仅在1小时内,可以从(SA2S-A)B和(SA2S-A)BT在1100℃下形成约100%纯的单丝。