The present invention is directed to a process for manufacturing a polyether ether ketone (PEEK) membrane which may be used for ultrafiltration or microfiltration at high temperatures.
In this process for manufacturing a non-sulfonated PEEK membrane which comprises dissolving PEEK in a solvent to obtain a membrane forming stock solution, forming the stock solution into a desired shape and bringing the formed stock solution in contact with a coagulating liquid capable of coagulating PEEK, the key features involve using concentrated sulfuric acid as the solvent, dissolving PEEK therein to prepare the stock solution and keeping the stock solution at 15 degrees C or lower until initiation of membrane formation.
本发明涉及一种
聚醚醚酮(PEEK)膜的制造工艺,该膜可用于高温下的超滤或微滤。
在这种制造非磺化
聚醚醚酮膜的工艺中,包括将
聚醚醚酮溶解在溶剂中以获得膜形成的储备溶液,将储备溶液形成所需的形状,并使形成的储备溶液与能够使
聚醚醚酮凝固的凝固液接触,其主要特征包括使用浓
硫酸作为溶剂,在其中溶解
聚醚醚酮以制备储备溶液,并将储备溶液保持在 15 摄氏度或更低的温度下,直到开始形成膜。