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Title: Effect of natural carbon filler on thermo-oxidative degradation of thermoplastic-based composites

Journal Article · · Thermochimica Acta

Here thermo-oxidative degradation of thermoplastic-based composites filled with two types of carbon filler including bituminous (Pittsburgh No.8, P8) and sub-bituminous (Powder River Basin, PRB) coals were investigated using differential scanning calorimetry (DSC) and thermogravimetric analysis. Oxidation induction time (OIT) and activation energy (AE) for coal plastic composites (CPCs), HDPE, and commercially available wood plastic composites (WPCs) were determined using isothermal and isoconversional kinetic methods. OIT values for CPC increased with coal content, indicating higher thermo-oxidative stability. AE values obtained using isothermal method were 52–116 kJ/mol for all CPC formulations, 32 kJ/mol for HDPE, and 33–114 kJ/mol for WPCs. AEs for CPCs obtained using isoconversional methods were not constant but rather dependent on the degree of degradation with CPC/ P8 coal possessing higher overall AE. Incorporating coal into HDPE increased thermo-oxidative stability of the resulting composite, indicating coal potentially acts as a natural primary and secondary antioxidant for polymer materials.

Research Organization:
Ohio Univ., Athens, OH (United States)
Sponsoring Organization:
USDOE Office of Fossil Energy (FE)
Grant/Contract Number:
FE0031809
OSTI ID:
1977684
Alternate ID(s):
OSTI ID: 1867922
Journal Information:
Thermochimica Acta, Vol. 713, Issue C; ISSN 0040-6031
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (45)

Lignin-like polymers in coals journal March 1979
Lignin as a green primary antioxidant for polypropylene journal March 2016
Study of thermal properties of wood plastic composite reinforced with cellulose micro fibril and nano inorganic fiber filler journal July 2012
Characterization of Powder River Basin coal pyrolysis with cost-effective and environmentally-friendly composite Na Fe catalysts in a thermogravimetric analyzer and a fixed-bed reactor journal April 2018
Thermal analysis techniques for characterization of polymer materials journal March 2006
Lignin as additive in polypropylene/coir composites: Thermal, mechanical and morphological properties journal March 2012
Investigation of mechanical property, flame retardancy and thermal degradation of LLDPE–wood-fibre composites journal February 2004
ICTAC Kinetics Committee recommendations for collecting experimental thermal analysis data for kinetic computations journal August 2014
Lifetime prediction for polymer materials using OIT measurements by the DSC method journal March 2005
Kinetic analysis for thermal cracking of HDPE: A new isoconversional approach journal July 2016
The thermo-oxidative stability and flammability of wood/polypropylene composites journal December 2014
Thermal degradation kinetics and estimation of lifetime of radiation grafted polypropylene films journal July 2017
The isoconversional method for determination of energy of activation at constant heating rates: Corrections for the Doyle approximation journal May 1983
Mechanical performance of thermoplastic composites using bituminous coal as filler: Study of a potentially sustainable end‐use application for Appalachian coal journal December 2017
Kinetics of the Thermal and Thermo-Oxidative Degradation of Polystyrene, Polyethylene and Poly(propylene) journal March 2001
Understanding the chemistry and physics of coal structure (A Review) journal May 1982
Thermoplastic/Natural Filler Composites: A Short Review journal February 2019
“Close loop” mechanistic schemes for hydrocarbon polymer oxidation journal April 1995
Thermal and thermo-oxidative degradation kinetics and characteristics of poly (lactic acid) and its composites journal March 2019
Processing thermogravimetric analysis data for isoconversional kinetic analysis of lignocellulosic biomass pyrolysis: Case study of corn stalk journal February 2018
Advanced isoconversional method journal August 1997
A review on the degradability of polymeric composites based on natural fibres journal May 2013
Advanced isoconversional and master plot analyses on non-isothermal degradation kinetics of AlN (nano)-reinforced HDPE composites journal April 2016
Kinetics of the thermal and thermo-oxidative degradation of polypropylene/halloysite nanocomposites journal September 2012
Re-examination of the phenolic hydroxyl contents of coals journal February 1978
Investigating the effect of lignin on the mechanical, thermal, and barrier properties of cellulose nanofibril reinforced epoxy composite journal June 2017
Coal-Filler-Based Thermoplastic Composites as Construction Materials: A New Sustainable End-Use Application journal September 2019
Kinetics of thermal degradation of char-forming plastics from thermogravimetry. Application to a phenolic plastic journal January 1964
Polymer durability estimates based on apparent activation energies for thermal oxidative degradation journal March 2001
Modification of Softwood by Monomers and Nanofillers [English] journal May 2014
ICTAC Kinetics Committee recommendations for performing kinetic computations on thermal analysis data journal June 2011
Modified woodflour as thermoset fillers journal May 2001
Thermal degradation behaviors of polyethylene and polypropylene. Part I: Pyrolysis kinetics and mechanisms journal July 2010
Effect of antioxidants and fire retardants as mineral fillers on the physical and mechanical properties of high loading hybrid biocomposites reinforced with rice husks and sawdust journal November 2012
A new generation of wood polymer composite with improved thermal stability journal April 2012
Influence of fullerene on the kinetics of thermal and thermo-oxidative degradation of high-density polyethylene by capturing free radicals journal April 2013
Thermal degradation kinetics of plastics and model selection journal August 2017
Characterization of Wood-Plastic Composites Made with Different Lignocellulosic Materials that Vary in Their Morphology, Chemical Composition and Thermal Stability journal December 2017
Thermal decomposition of fire-retarded wood flour/polypropylene composites: Kinetic property and degradation mechanisms journal August 2015
Isoconversional Kinetic Analysis of Thermally Stimulated Processes in Polymers journal September 2006
Natural fiber polymer composites: A review journal January 1999
Computer simulation of the molecular structure of bituminous coal journal November 1992
From coal to single-stage and two-stage products: A reactive model of coal structure journal September 1984
Stabilization effect of lignin in polypropylene and recycled polypropylene journal September 2005
The role of lignin in polypropylene composites with semi-bleached cellulose fibers: Mechanical properties and its activity as antioxidant journal October 2014