Citation

Casson V, Snee T, Maschio G. J. Hazard. Mater. 2014; 270C: 45-52.

Affiliation

Dipartimento di Ingegneria Industriale, Via Marzolo 9, 35131 Padova, Italy. Electronic address: giuseppe.maschio@unipd.it.

Copyright

(Copyright © 2014, Elsevier Publishing)

DOI

10.1016/j.jhazmat.2014.01.038

PMID

24531369

Abstract

This paper analyzes the effect of an accelerator on the polymerisation of methyl methacrylate (MMA). This study is based on the results of an investigation of an accident in a manufacturing site for resins located in the United Kingdom. As sequence of event to cause the accident the following was assumed: during an unattended batch process a runaway undesired polymerisation of methyl methacrylate occurred, generating rapid vaporisation of monomer, which in contact with an ignition source, led to an explosion followed by a fire. Since no initiator for the polymerisation reaction had been jet added to the blend, it was supposed that the accelerator contributed to the onset of the undesired polymerisation. The accelerator involved in the accident t has therefore been tested by differential scanning calorimetry and adiabatic calorimetry. The experimental data allowed the authors to prove the hypothesis made and to define safety ranges for the polymerisation reaction.

Language: en