Mechanism of thermal decomposition of polyether ether ketone PEEK from a review of decomposition studiesReport as inadecuate






Author: Parina Patel, T Richard Hull, Richard W. Mccabe, Dianne Flath, John Grasmeder and Mike Percy

Source: https://core.ac.uk/

A review of the literature on the flammability and decomposition of poly(oxy-1,4-phenyleneoxy-1,4-phenylenecarbonyl-1,4-phenylene) (PEEK) is presented. This paper provides an overview of the flammability of PEEK and its decomposition mechanisms. Based on this literature, mechanisms have been suggested which attempt to explain the products formed at each stage of PEEK decomposition and indicate the intermediates which should be formed at each of these stages


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Published in Polymer Degradation and Stability 95, 709-718, (2010) doi:10.1016-j.polymdegradstab.2010.01.024 Mechanism of Thermal Decomposition of Poly(Ether Ether Ketone) (PEEK) From a Review of Decomposition Studies Parina Patel,a T.
Richard Hull,a Richard W.
McCabe,b Dianne Flath,c John Grasmeder,c and Mike Percy.c a Centre for Fire and Hazards Science, School of Forensic and Investigative Science, University Of Central Lancashire, Preston, PR1 2HE, UK b Centre for Materials Science, School of Forensic and Investigative Science, University Of Central Lancashire, Preston, PR1 2HE, UK c Victrex PLC, Hillhouse International, Thornton-Cleveleys, Lancashire, FY5 4QD, UK Abstract A review of the literature on the flammability and decomposition of Poly(oxy-1,4phenyleneoxy-1,4-phenylenecarbonyl-1,4-phenylene) (PEEK) is presented. This paper provides an overview of the flammability of PEEK and its decomposition mechanisms. Based on this literature, mechanisms have been suggested which attempt to explain the products formed at each stage of PEEK decomposition and indicate the intermediates which should be formed at each of these stages. Introduction The widespread use of synthetic polymers has revolutionised the manufacturing industry and the range of products available.
However, many synthetic polymers suffer from much greater flammability than traditional materials as the quest for synthetic polymers with good mechanical properties and low flammability continues. Poly(oxy-1,4-phenyleneoxy-1,4- phenylenecarbonyl-1,4-phenylene), (PEEK), is a semi-crystalline polymer with excellent mechanical, chemical and thermal properties which permits its use in a variety of industrial applications particularly as a metal replacement.
1 In addition, it has lower flammability and swells to form a significant amount of char on burning.
In order to understand this behaviour and to see if further enhancement is possible, it is necessary to understand the thermal Published in Polymer Degradation and Stability 95, 709-718, (2010) doi:10.1016-j.polymdegradstab.2010.01.024 decomposition behaviour of PEEK.
PEEK is an aromatic polyketone and is one of the commonly used engineering thermoplastic materials combining ketone and aromatic moieties. The material was invented and patented in 1978 by the Imperial Chemical Industries (ICI) company, 2 but since then little work has been carried out on elucidating the thermal decomposition mechanisms of the polymer.
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