Polish version

Login form

register


Print

A. Ubowska, K. Kowalczyk, G. Krala

Injection molding of transparent polymeric materials with 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide
forenhanced fire retardancy
Polimery 2018, No 7-8, 536

DOI: dx.doi.org/10.14314/polimery.2018.7.8

Summary

Selected transparent polymers [i.e., polystyrene (PS) and poly(methyl methacrylate) (PMMA)] were extruded with 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO). The obtained compositions were formed into testing samples by injection molding process. The obtained materials (containing 1–10 wt parts/100 wt parts of the polymer) exhibited higher melt flow rate and thermal resistance, as well as reduced flammability (while maintaining their mechanical properties). Additionally, Fourier transform infrared spectroscopy (FT-IR) analysis of modified polymers was conducted. Studies confirmed that – during the extrusion and/or injection molding – DOPO reacts with PS and PMMA.

Keywords: 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, polystyrene, poly(methylmethacrylate), mechanical properties, thermal properties

e-mail: agnieszka.ubowska@zut.edu.pl
A. Ubowska, K. Kowalczyk, G. Krala (572.6 KB)
Injection molding of transparent polymeric materials with 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide for enhanced fire retardancy