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Plasma-induced graft-polymerisation of ethylene glycol methacrylate phosphate on polyethylene films |
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| Authors: | Stefano Zanini Claudia Riccardi Claudia Colombo |
| Affiliation: | a Dipartimento di Fisica Occhialini, Università degli Studi di Milano-Bicocca, p.za della Scienza, 3 I-20126 Milano, Italy b Dipartimento di Scienza dell'Ambiente e del Territorio, Università degli Studi di Milano-Bicocca, p.za della Scienza, 1 I-20126 Milano, Italy c Progetto “Tecnologie innovative per il packaging” - Sovvenzione Globale Ingenio, FSE 2006, Misure D3 e D4, Dipartimento di Fisica Occhialini, Università degli Studi di Milano-Bicocca, p.za della Scienza, 3 I-20126 Milano, Italy |
| Abstract: | A detailed study of argon plasma-induced graft-polymerisation of ethylene glycol methacrylate phosphate (EGMP) on polyethylene (PE) substrates is presented. The process consists of four steps: (a) plasma pre-activation of the PE substrates; (b) immersion in an EGMP solution; (c) argon plasma-induced graft-polymerisation; (d) washing and drying of the samples. Influence of the solution and plasma parameters on the process efficiency, evaluated in terms of amount of grafted polymer and coverage uniformity, is investigated. The plasma-induced graft-polymerisation of EGMP is then followed by sample weighting, contact angle measurements, attenuated total reflection infrared (ATR-IR) spectroscopy and X-ray photoelectron spectroscopic (XPS) analysis. Finally, flame-retardant properties of modified PE substrates are evaluated by limiting oxygen index (LOI) measurements. |
| Keywords: | Polyethylene Flame retardancy Plasma-induced graft-polymerisation Ethylene glycol methacrylate phosphate |
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