公开(公告)号：US20190083940A1

公开(公告)日：2019-03-21

申请号：US16065991

申请日：2016-12-19

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Linglu YANG ,  Peng WANG ,  Su LU ,  Zhen LIU ,  Yun PENG ,  Lawrence C. COSTA

IPC: B01D69/10 ,  B01D67/00 ,  B01D69/06 ,  B01D71/68 ,  B01D69/02 ,  B01D63/10 ,  B01D69/12

Abstract: The disclosure of the present invention relates to a method for preparing membrane and associated membrane and filter element. The method comprises providing a porous substrate having a plurality of pores; and applying a pre-filler solution to at least partially occupy the pores in the porous substrate. The membrane comprises a porous substrate and a filter layer formed on the porous substrate. The filter element comprises a core tube; and a membrane as prepared and rolled around the core tube.

公开(公告)号：US20160193572A1

公开(公告)日：2016-07-07

申请号：US15066635

申请日：2016-03-10

Applicant: General Electric Company

Inventor： Xingpeng ZHANG ,  Lawrence C. COSTA ,  Steven John HARROLD ,  Babu NARAYANSWAMY

IPC: B01D71/82 ,  C08G69/48 ,  B01D71/68 ,  B01D61/02 ,  B01D71/56

CPC classification number: B01D71/70 ,  B01D61/02 ,  B01D61/025 ,  B01D61/027 ,  B01D67/0011 ,  B01D69/02 ,  B01D71/56 ,  B01D71/68 ,  B01D71/82 ,  B01D2323/30 ,  B01D2323/40 ,  B01D2325/48 ,  B32B27/283 ,  B32B27/34 ,  B32B2305/026 ,  C08G69/48 ,  C08G77/445

Abstract: The present disclosure describes an additive that may be used in the manufacture of thin-film polyamide composite membranes. Thin-film polyamide composite membranes are used in filtration processes, such as reverse osmosis and nanofiltration. The additive may be an amino-siloxane compound. The amino-siloxane compound includes repeated groups of silicon bonded to oxygen with at least one amine functional group. Optionally, the amino-siloxane compound may also include a hydrophilic group. The additive reacts with an aqueous phase and an organic phase to form a thin polyamide film on a porous substrate.

Abstract translation: 本公开描述了可用于制造薄膜聚酰胺复合膜的添加剂。 薄膜聚酰胺复合膜用于过滤工艺，如反渗透和纳滤。 添加剂可以是氨基硅氧烷化合物。 氨基硅氧烷化合物包括与氧结合的至少一个胺官能团的重复的硅基团。 任选地，氨基硅氧烷化合物还可以包括亲水基团。 添加剂与水相和有机相反应，在多孔基材上形成薄的聚酰胺薄膜。