METHODS OF MAKING POROUS MEMBRANES

• Main Authors: THANKAMONY ROSHNI LILLY, LAI ZHIPING
• Format: Patent
• Language: Chinese; English
• Published: 09.10.2020
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

Embodiments of the present disclosure describe a method of making a membrane comprising contacting one or more membrane materials, a solvent, and a non-solvent at a first temperature sufficient to form a homogenous solution; casting the homogenous solution at about the first temperature; and adjusting the temperature to a second temperature sufficient to induce phase separation of the solvent andnon-solvent and form a porous membrane. Embodiments of the present disclosure also describe a mask for removing particulate matters. 本公开的实施方案描述了一种制备膜的方法，其包括于足以形成均相溶液的第一温度使一种或多种膜材料、溶剂和非溶剂接触；于约所述第一温度浇铸所述均相溶液；将温度调整至足以诱导所述溶剂和所述非溶剂相分离并形成多孔膜的第二温度。本公开的实施方案还描述了一种用于去除颗粒物的口罩。