LOW ENERGY REINFORCED MEMBRANE FOR PRESSURE DRIVEN APPLICATION

• Main Authors: GUDIPATI CHAKRAVARTHY, THONG ZHIWEI, NG KOK SENG, OOI SHU TING, GOH LI MAY, LI WEIKUN PAUL
• Format: Patent
• Language: Chinese; English
• Published: 17.12.2021
• Subjects: CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

A reinforced flat sheet membrane operable to withstand vacuum pressure and a high pressure of up to 1500 psi is disclosed herein. The reinforced flat sheet membrane comprises a polymeric membrane, a permeate carrier which reinforces the polymeric membrane and has channels to direct permeate flow, wherein the polymeric membrane has the permeate carrier incorporated therein and the channels of the permeate carrier are partially exposed at a surface of the polymeric membrane. The present disclosure includes a method of fabricating the reinforced flat sheet membrane. The method comprises contacting the permeate carrier with a pre-wetting agent, casting a polymer solution on the permeate carrier, and forming the polymeric membrane from the polymer solution with the permeate carrier incorporated in the polymeric membrane. 本文公开了一种可操作以承受真空压力和高达1500psi的高压的增强的平片膜。增强的平片膜包含：聚合物膜；渗透物载体，该渗透物载体增强该聚合物膜并具有引导渗透物流的通道；其中该聚合物膜使渗透物载体结合在其中，并且渗透物载体的通道部分暴露在聚合物膜的表面上。本公开包括一种制造增强的平片膜的方法。该方法包括使渗透物载体与预润湿剂接触；将聚合物溶液浇铸在渗透物载体上；以及由聚合物溶液形成聚合物膜，