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公开(公告)号：KR1020040089888A
公开(公告)日：2004-10-22
申请号：KR1020030023722
申请日：2003-04-15
Applicant: 한국화학연구원
Abstract: PURPOSE: Provided is a nanocomposite membrane, which has increased surface roughness obtained by interfacial polymerization of an aqueous solution with organic solution each containing additives on a porous support, and thus shows improved transmission flux through the membrane. CONSTITUTION: The nanocomposite membrane is manufactured by the method comprising interfacial polymerization of a multifunctional amine compound-containing aqueous solution with an amine reactive compound-containing organic solution. The method comprises the steps of: (i) dipping a porous support into an aqueous solution containing a multifunctional amine compound, amine salt, alcohol, ether and a phosphorus-based organic substance for 1-2 minutes and removing an excessive amount of amine solution; (ii) further dipping the support into a C8-C12 isoparaffin-based organic solution containing an amine reactive compound and phosphorus- or ketone-based organic substance for 2-3 minutes to perform interfacial polymerization; and (iii) heating the support at 85-95 deg.C for 3-4 minutes and dipping it into a weak alkaline solution.
Abstract translation: 目的：提供一种纳米复合膜，其通过水溶液与多孔载体上含有添加剂的有机溶液的界面聚合获得的增加的表面粗糙度，从而显示通过膜的改善的透射通量。 构成：纳米复合膜通过含有多官能胺化合物的水溶液与含胺活性化合物的有机溶液的界面聚合的方法制造。 该方法包括以下步骤：（i）将多孔载体浸入含有多官能胺化合物，胺盐，醇，醚和磷基有机物质的水溶液中1-2分钟，并除去过量的胺溶液 ; （ii）将载体进一步浸渍到含有胺反应性化合物和磷或酮类有机物质的C8-C12异链烷烃类有机溶液中2-3分钟进行界面聚合; 和（iii）将载体在85-95℃加热3-4分钟并将其浸入弱碱性溶液中。
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52.发明公开티타니아 나노입자의 블렌딩에 의한 내화학성, 내미생물성및 내오염성 비대칭 한외여과 및 정밀여과막의 제조방법 有权用于制备具有化学，微生物和耐磨性的非对称超滤和微胶囊的方法通过混合钛酸钠纳米颗粒与聚合物溶液
公开(公告)号：KR1020040089886A
公开(公告)日：2004-10-22
申请号：KR1020030023720
申请日：2003-04-15
Applicant: 한국화학연구원
CPC classification number: B01D71/06 , B01D61/145 , B01D61/147 , B01D65/08 , B01D67/0002 , B01D2325/20 , B01D2325/30 , C02F1/444 , C02F3/1268
Abstract: PURPOSE: To prepare asymmetric ultrafiltration and microfiltration membranes having high flux rate with no deterioration on chemical, microbial and fouling resistant, by blending titania nano particles with polymer solution. CONSTITUTION: The method comprises steps of (a) adding 0.1 to 50 wt.% of titania nano particles having a diameter of 10 to 50 nanometers to a polymer solution selected from the group consisting of polysulfone, polyether sulfone, polyvinylidene fluoride, polyacrylonitrile and polyimide; and (b) coating the solution of the step (a) on a non woven fabric.
Abstract translation: 目的：通过将二氧化钛纳米颗粒与聚合物溶液混合，制备具有高通量率的不对称超滤和微滤膜，不会对化学，微生物和结垢造成损害。 方案：该方法包括以下步骤：（a）向选自聚砜，聚醚砜，聚偏二氟乙烯，聚丙烯腈和聚酰亚胺的聚合物溶液中加入0.1至50重量％的直径为10至50纳米的二氧化钛纳米颗粒 ; 和（b）将步骤（a）的溶液涂布在无纺织物上。
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公开(公告)号：KR100447946B1
公开(公告)日：2004-09-08
申请号：KR1020010046171
申请日：2001-07-31
Applicant: 한국화학연구원
Abstract: PURPOSE: Provided is an asymmetric microporous polyvinylidene difluoride hollow fiber for use in membrane contactor, wherein the asymmetric microporous polyvinylidene difluoride hollow fiber membrane has high porosity over 70 % and adequate pore size on surface skin layer thereof highly efficient in separation performance. CONSTITUTION: The method comprises the steps of (a) obtaining a spinning solution by adding pore forming agents, pore growth retardants and solvents to polyvinylidene difluoride (PVDF) and mixing all the ingredients, (b) forming a PVDF hollow fiber membrane using the spinning solution after letting the spinning solution undergo a phase transition process, (c) treating the PVDF hollow fiber membrane using a hydrothermal process, (d) dipping the PVDF hollow fiber membrane into ethyl alcohol, and (e) drying the PVDF hollow fiber membrane.
Abstract translation: 目的：提供一种用于膜接触器的不对称微孔聚偏二氟乙烯中空纤维，其中不对称微孔聚偏二氟乙烯中空纤维膜具有70％以上的高孔隙率，并且其表面层上的足够孔径对分离性能高效。 构成：该方法包括以下步骤：（a）通过向聚偏二氟乙烯（PVDF）添加成孔剂，孔隙生长阻滞剂和溶剂并混合所有成分来获得纺丝溶液，（b）使用纺丝形成PVDF中空纤维膜 （c）用水热法处理PVDF中空纤维膜，（d）将PVDF中空纤维膜浸入乙醇中，和（e）干燥PVDF中空纤维膜。
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公开(公告)号：KR100411179B1
公开(公告)日：2003-12-18
申请号：KR1020010001398
申请日：2001-01-10
Applicant: 한국화학연구원
Abstract: PURPOSE: A process for producing nano composites membranes using poly(acrylonitrile) is provided, which is characterized in that after a porous support that is fabricated by using poly(acrylonitrile) is modified with NaOH to endow -COOH radical, the surface-modified porous support is interfacial-polymerized with piperazine or acyl chloride, thus when introducing polyamide onto the porous support, ionic bond is formed between polyamide layer and the porous support. CONSTITUTION: The preparation process of nano composites membranes includes the steps of fabrication of porous support by using poly(acrylonitrile); modification of the porous support with 0.1-2M NaOH for 0.5-3 hours to endow -COOH to the surface of porous support; interfacial polymerization of the surface-modified porous support with piperazine or acyl chloride in the presence of catalyst(trimethyl amine); and introduction of polyamide layer onto the porous support. Above acyl chloride is selected from trimesoyl chloride, terephthaloyl chloride and isophthaloyl chloride.
Abstract translation: 目的：提供一种使用聚（丙烯腈）制造纳米复合材料膜的方法，其特征在于在用NaOH改性多孔支撑体以赋予-COOH自由基以后，表面改性多孔体 载体与哌嗪或酰氯进行界面聚合，因此当将聚酰胺引入到多孔载体上时，在聚酰胺层和多孔载体之间形成离子键。 结构：纳米复合膜的制备工艺包括采用聚丙烯腈制备多孔载体的步骤; 用0.1-2M NaOH将多孔载体改性0.5-3小时以使-COOH赋予多孔载体表面; 表面改性的多孔载体与哌嗪或酰氯在催化剂（三甲胺）存在下的界面聚合; 并将聚酰胺层引入到多孔载体上。 上述酰氯选自均苯三甲酰氯，对苯二甲酰氯和间苯二甲酰氯。
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公开(公告)号：KR1020020060364A
公开(公告)日：2002-07-18
申请号：KR1020010001398
申请日：2001-01-10
Applicant: 한국화학연구원
CPC classification number: B01D69/125 , B01D71/42 , C08J5/2206 , C08J5/2256 , C08J2377/00
Abstract: PURPOSE: A process for producing nano composites membranes using poly(acrylonitrile) is provided, which is characterized in that after a porous support that is fabricated by using poly(acrylonitrile) is modified with NaOH to endow -COOH radical, the surface-modified porous support is interfacial-polymerized with piperazine or acyl chloride, thus when introducing polyamide onto the porous support, ionic bond is formed between polyamide layer and the porous support. CONSTITUTION: The preparation process of nano composites membranes includes the steps of fabrication of porous support by using poly(acrylonitrile); modification of the porous support with 0.1-2M NaOH for 0.5-3 hours to endow -COOH to the surface of porous support; interfacial polymerization of the surface-modified porous support with piperazine or acyl chloride in the presence of catalyst(trimethyl amine); and introduction of polyamide layer onto the porous support. Above acyl chloride is selected from trimesoyl chloride, terephthaloyl chloride and isophthaloyl chloride.
Abstract translation: 目的：提供一种使用聚（丙烯腈）制备纳米复合膜的方法，其特征在于在通过使用聚（丙烯腈）制备的多孔载体用NaOH改性以赋予-COOH基团之后，表面改性的多孔 载体与哌嗪或酰氯界面聚合，因此当将聚酰胺引入多孔载体上时，在聚酰胺层和多孔载体之间形成离子键。 构成：纳米复合膜的制备过程包括使用聚丙烯腈制备多孔载体的步骤; 用0.1-2M NaOH改性多孔载体0.5-3小时，将-COOH赋予多孔载体表面; 在催化剂（三甲胺）存在下，表面改性多孔载体与哌嗪或酰氯的界面聚合; 并将聚酰胺层引入到多孔载体上。 上述酰氯选自均苯三甲酰氯，对苯二甲酰氯和间苯二酰氯。
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Patent Agency Ranking
公开(公告)号：KR100295735B1
公开(公告)日：2001-11-05
申请号：KR1019980044440
申请日：1998-10-19
Applicant: 한국화학연구원
IPC: C23C16/00
Abstract: 본 발명은 팔라듐 무기복합막 제조용 진공증착장치 및 그 장치를 이용한 제조방법에 관한 것으로서, 더욱 상세하게는 다공성 지지체 표면에 팔라듐 막을 상온 저진공하에서 증착시킬 수 있도록 증착진공로, 확산펌프, 테플론 밸브, 가열기, 온도계측기 등을 포함하는 진공증착장치를 구비하고, 이 장치를 이용하여 팔라듐 유기화합물을 승화시킨 다음, 그 유입량을 조절하면서 다공성 지지체 표면에 침적시키고, 지지체의 뒷면에 상온 저진공하에서 수소 기체를 유입하여 팔라듐을 금속으로 환원시켜서 다공성 지지체의 기공에 충전시킴으로써 상온 저진공에서 높은 증기압을 나타내는 금속 유기화합물을 사용하여 증착속도를 용이하게 조절할 수 있고, 형성된 막은 높은 표면에너지를 갖고 있어서 비교적 저온에서 효과적으로 열처리할 수 있으며 특히 특정 기체의 투과량을 종래에 비하여 매우 향상시킬 수 있는 팔라듐 무기복합막 제조용 진공증착장치 및 그 장치를 이용한 제조방법에 관한 것이다.
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公开(公告)号：KR1020000015371A
公开(公告)日：2000-03-15
申请号：KR1019980035244
申请日：1998-08-28
Applicant: 한국화학연구원
IPC: C08J5/22
Abstract: PURPOSE: A preparation method of polyimide composite membrane by interfacial-polymerizing diamine aqueous solution and diacylchloride-diester and followed by heat curing is provided which has good permeability and preferential segregation properties for separating water from water/organic solvent mixtures selectively. CONSTITUTION: A diamine aqueous solution(H2N-R-NH2) and diacylchloride-diester organic phase of formula(2) are interfacial-polymerized on a porous holder to give a polyamic ester membrane, which is cured at 100-300°C to give a polyimide composite membrane having a conversion rate to polyimide of 30-80%. In formula(2), R is -(CH2)m- or phenyl, m is 0-10. The concentration of the diamine aqueous solution(H2N-R-NH2) is 0.2-10 mol/L. The process is useful for separating water from water/organic solvent mixtures selectively by a permeability evaporation or a reverse osmosis.
Abstract translation: 目的：提供一种通过界面聚合二胺水溶液和二酰氯二酯并随后进行热固化的聚酰亚胺复合膜的制备方法，其具有良好的渗透性和优选的偏析性，用于选择性地将水与有机溶剂混合物分离。 构成：将式（2）的二胺水溶液（H 2 N-R-NH 2）和二酰氯 - 二酯有机相在多孔保持器上进行界面聚合，得到聚酰胺酯膜，其在100-300℃下固化，得到 具有30-80％聚酰亚胺转化率的聚酰亚胺复合膜。 在式（2）中，R为 - （CH 2）m - 或苯基，m为0-10。 二胺水溶液（H2N-R-NH2）的浓度为0.2-10mol / L。 该方法可用于通过渗透蒸发或反渗透选择性地从水/有机溶剂混合物中分离水。
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公开(公告)号：KR100247557B1
公开(公告)日：2000-03-15
申请号：KR1019970073505
申请日：1997-12-24
Applicant: 한국화학연구원
IPC: B01D71/02
CPC classification number: B01D67/0069 , B01D53/228 , B01D67/0072 , B01D71/022 , B01D2323/12 , C01B3/505 , C01B2203/0405 , C01B2203/0465
Abstract: 본 발명은 수소기체 분리용 복합막의 제조방법에 관한 것으로서, 더욱 상세하게는 팔라듐과 전이금속으로 구성된 합금이 개질화된 다공성 지지체 위에 진공을 이용한 전기도금법에 의해 핀홀이 없도록 얇게 도금되어 있어 수소기체에 대한 투과계수 및 분리성능이 크게 향상되는 수소기체 분리용 복합막의 제조방법에 관한 것이다.
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公开(公告)号：KR100166150B1
公开(公告)日：1998-12-15
申请号：KR1019950012067
申请日：1995-05-16
Applicant: 한국화학연구원
IPC: B01D71/28
Abstract: 본 발명은 폴리비닐알코올 및 이오노머(ionomer)의 혼합물로된 물 투과성 분리막 및 폴리비닐알코올을 이오노머와 1:100 내지 100:1 의 중량비로 혼합하여 혼합용액을 제조하고, 제조한 용액을 지지체위에 캐스팅하는 것에 의한 물 투과성 분리막의 제조 방법에 관한 것이다. 본 발명에 의해 제조된 분리막은 우수한 투과도와 선택성을 동시에 갖는다.
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