کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
626942 1455451 2009 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation and characterization of composite NF membrane from a graft copolymer of trimethylallyl ammonium chloride onto chitosan by toluene diisocyanate cross-linking
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Preparation and characterization of composite NF membrane from a graft copolymer of trimethylallyl ammonium chloride onto chitosan by toluene diisocyanate cross-linking
چکیده انگلیسی

A novel positively charged composite NF membrane was prepared using a copolymer graft of trimethylallylammonium chloride onto chitosan (GCTACC) as the top selective layer, a poly(acrylonitrile (PAN) ultrafiltrationmembrane as the support layer and toluene diisocyanate (TDI) as the cross-linking reagent. The effects of membranepreparation conditions on membrane performance were investigated such as TDI concentration, GCTACCconcentration, etc. The observation from scanning electron microscopy suggested the composite structure of theresultant NF membrane. At 20 and 30 L.h−1 of cycling flow, the permeability of pure water was 14.1 kg.h−1.m−2.MPa−1. The order of rejection to different salt solutions was MgCl2> MgSO4> NaCl > Na2SO4, revealing thecharacteristic of positively charged NF membranes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 239, Issues 1–3, April 2009, Pages 38-45