Modification of polyethylene-polypropylene fibers by emulsion and solvent radiation grafting systems for boron removal

• Main Authors: Ting, T. M., Nasef, M. M.
• Format: Article
• Published: Korean Fiber Society 2017
• Subjects: T Technology (General)
• Online Access: http://eprints.utm.my/id/eprint/76176/; https://www.scopus.com/inward/record.uri?eid=2-s2.0-85021680474&doi=10.1007%2fs12221-017-6840-5&partnerID=40&md5=45a1e510d5d834e0d059f9c6a1050914

Preparation of boron-selective adsorbent was carried out by radiation induced grafting of glycidyl methacrylate (GMA) onto polyethylene-coated polypropylene (PE-PP) nonwoven fabric in emulsion or solvent medium followed by immobilization of N-methyl-D-glucamine (NMDG). Adsorbent precursors with 180 % degree of grafting (DG) were obtained by applying reaction parameters comprising 20 kGy dose, 5 % monomer concentration and 1 h reaction time in emulsion compared to 30 kGy, 10 % and 3 h in solvent medium. A glucamine density of 2.2 mmol/g could be imparted to the obtained adsorbents. The emulsion-mediated grafting was found more efficient and economical for preparation of boron chelating adsorbents.