-
公开(公告)号：KR1020040101853A
公开(公告)日：2004-12-03
申请号：KR1020030033816
申请日：2003-05-27
Applicant: 한국화학연구원
IPC: C08J7/04
Abstract: PURPOSE: Provided is a submerged membrane system having improved mechanical properties such as strength and hydrophilicity, and excellent transmissivity and pollution-resistance. CONSTITUTION: The submerged membrane system is manufactured by coating a coating liquid comprising an organic/inorganic hybrid compound onto the surface of a tube-type macromolecular support. Particularly, the organic/inorganic hybrid compound is formed by the coordinate-linking of hydrophilic macromolecules and minerals selected from silica and titania in a ratio of 79-90 wt% to 10-30 wt%, and is contained in the coating liquid to a concentration of 2-6 wt%. The support is made of a macromolecular fiber woven with a yarn having a thickness of 200-500 denier to have an inside diameter of 0.5-3.0mm and an outside diameter of 1.0-4.0mm.
Abstract translation: 目的：提供具有改善的机械性能如强度和亲水性以及优异的透射率和耐污染性的浸没式膜系统。 构成：通过将包含有机/无机杂化化合物的涂布液涂覆在管型大分子载体的表面上来制造浸没膜系统。 特别地，有机/无机杂化化合物通过亲水性大分子和选自二氧化硅和二氧化钛的比例为79-90重量％至10-30重量％的配位交联而形成，并且被包含在涂布液中 浓度为2-6重量％。 该支撑体由厚度为200-500旦尼尔的纱线编织的大分子纤维制成，内径为0.5-3.0mm，外径为1.0-4.0mm。
-
Patent Agency Ranking
公开(公告)号：KR100371901B1
公开(公告)日：2003-02-11
申请号：KR1019990047767
申请日：1999-10-30
Applicant: 한국화학연구원
Abstract: PURPOSE: A polyamide nano separation membrane obtained by adding a polyvinyl alcohol layer as a protecting layer to a polyamide active layer having low chemical stability such as chlorine resistance is provided, which has excellent chemical stability in wide ranges of pH as well as high water permeability. CONSTITUTION: The nano separation membrane is characterized in that it comprises a cross linked polyvinyl alcohol as a protecting layer on a polyamide composite comprising a porous supporting body and a polyamide active layer, wherein the cross linked polyvinyl alcohol has a thickness of 0.01 to 0.1 micrometer. The membrane is prepared by adding a mixture solution of one or two or more ionomers selected from the group consisting of sodium alginate, chitosan and sulfonated polystyrene with polyvinyl alcohols to a polyamide active layer.
Abstract translation: 目的：提供一种聚酰胺纳米分离膜，其通过将聚乙烯醇层作为保护层添加到具有低耐化学性如耐氯性的聚酰胺活性层中，其在宽pH范围内具有优异的化学稳定性以及高水渗透性 。 组成：纳米分离膜的特征在于它包含交联聚乙烯醇作为包含多孔支撑体和聚酰胺活性层的聚酰胺复合材料上的保护层，其中交联聚乙烯醇的厚度为0.01至0.1微米 。 该膜通过将选自藻酸钠，壳聚糖和磺化聚苯乙烯的一种或两种或更多种离聚物与聚乙烯醇的混合溶液加入到聚酰胺活性层中来制备。
-
公开(公告)号：KR100531118B1
公开(公告)日：2005-11-28
申请号：KR1020030033816
申请日：2003-05-27
Applicant: 한국화학연구원
IPC: C08J7/04
Abstract: 본 발명은 침지형 분리막과 이의 제조방법에 관한 것으로서, 더욱 상세하게는 특정 굵기의 얀(yarn)으로 직조된 고분자 섬유로 튜브 모양의 지지체를 형성하고, 상기 지지체 표면에 아민기를 포함하는 친수성 고분자와 실리카 및 티타니아 중에서 선택된 무기물이 배위결합된 유기/무기 하이브리드 화합물이 일정량 포함되어 이루어진 소수성 고분자 용액을 코팅한 후에, 재차 상기한 유기/무기 하이브리드 화합물을 코팅하여 제조된 것으로, 기계적 물성이 향상되고 투과도와 막의 내오염성이 향상된 침지형 분리막과 이의 제조방법에 관한 것이다.
-
公开(公告)号：KR1020010039398A
公开(公告)日：2001-05-15
申请号：KR1019990047767
申请日：1999-10-30
Applicant: 한국화학연구원
Abstract: PURPOSE: A polyamide nano separation membrane obtained by adding a polyvinyl alcohol layer as a protecting layer to a polyamide active layer having low chemical stability such as chlorine resistance is provided, which has excellent chemical stability in wide ranges of pH as well as high water permeability. CONSTITUTION: The nano separation membrane is characterized in that it comprises a cross linked polyvinyl alcohol as a protecting layer on a polyamide composite comprising a porous supporting body and a polyamide active layer, wherein the cross linked polyvinyl alcohol has a thickness of 0.01 to 0.1 micrometer. The membrane is prepared by adding a mixture solution of one or two or more ionomers selected from the group consisting of sodium alginate, chitosan and sulfonated polystyrene with polyvinyl alcohols to a polyamide active layer.
Abstract translation: 目的：提供通过将聚乙烯醇层作为保护层添加到耐氯化学等化学稳定性低的聚酰胺活性层而获得的聚酰胺纳米分离膜，其在宽范围的pH值以及高透水性下具有优异的化学稳定性 。 构成：纳米分离膜的特征在于，其包含交联聚乙烯醇作为保护层，在包含多孔支撑体和聚酰胺活性层的聚酰胺复合物上，其中交联聚乙烯醇的厚度为0.01至0.1微米 。 通过将选自藻酸钠，壳聚糖和磺化聚苯乙烯的一种或两种以上离聚物与聚乙烯醇的混合溶液加入聚酰胺活性层来制备膜。
-
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。
-
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。
-
-
-
-
-
Search Results
6
records
(took 0.017 seconds)
