Abstract
Abstract A new acid stable copolyamide [PEI-Mel]-PA membrane was developed via interfacial polymerization assisted by melamine. The physico-chemical properties and separation ability were studied. It was compared with an acid stable polysulfonamide membrane in terms of acid stability. Melamine improved the thermal and acid stability and made the surface of the membrane more positively charged. The decreases in MgSO 4 rejections were 56% and 31% for [PEI-Mel]-PA membrane after H 2 SO 4 and HNO 3 treatment, respectively. The stability of [PEI-Mel]-PA improved up to 16% and 48% in H 2 SO 4 and HNO 3 , respectively in comparison with PEI-PA membrane. It recovered more than 97% of the acid.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
