TY  - JOUR
AU  - Liu, Yitao
AU  - Zhao, Zhiyuan
AU  - Chen, Ruiyu
AU  - Xu, Xiaokang
TI  - Pyrolytic characteristics, kinetics, thermodynamics, volatile products and chemical reactions of micron polypropylene infiltrated with kerosene
JF  - JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
J2  - J ANAL APPL PYROL
VL  - 171
PY  - 2023
PG  - 17
SN  - 0165-2370
DO  - 10.1016/j.jaap.2023.105939
UR  - https://m2.mtmt.hu/api/publication/33838236
ID  - 33838236
AB  - The pyrolysis of polymers infiltrated with combustible liquids is one common behavior in the fire accidents resulted by the leakage and overflow of combustible liquids over polymers. The present study may provide a theoretical basis and guidance for the prediction of fire development, the selection or design of fire detection and the design of ventilation and fire extinguishing systems. In the present study, the thermal decomposition be-haviors, kinetics, thermodynamics, volatiles and chemical reactions of micron polypropylene (typical polymer) infiltrated with kerosene (typical combustible liquid) are investigated. It is concluded that the thermal decom-position process of micron PP with kerosene can be divided into two stages, and all stages can be considered as one-step reaction. As the kerosene content increases, the average and peak reaction rates of the first stage in-crease, while they decrease for the second stage and the whole process. As the heating rate increases, the average and peak reaction rates of the whole process decrease. In addition, increasing the heating rate or kerosene content may result in better combustion performance compared with that of pure PP. The calculated average activation energy, pre-exponential factor and global reaction model of the second stage can well predict the thermal decomposition behaviors of this stage. Thermodynamic analysis shows that the thermal decomposition of micron PP with kerosene is an endothermic and non-spontaneous reaction. The main volatile products contain olefins, alkynes, alkanes, hydrogen, carbon dioxide, carbon monoxide and aromatic compounds. The possible chemical reactions generating the above-mentioned products are deduced.
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Toapanta, Tania
AU  - Okoffo, Elvis D.
AU  - Ede, Sarah
AU  - O'Brien, Stacey
AU  - Burrows, Stephen D.
AU  - Ribeiro, Francisca
AU  - Gallen, Michael
AU  - Colwell, John
AU  - Whittaker, Andrew K.
AU  - Kaserzon, Sarit
AU  - V. Thomas, Kevin
TI  - Influence of surface oxidation on the quantification of polypropylene microplastics by pyrolysis gas chromatography mass spectrometry
JF  - SCIENCE OF THE TOTAL ENVIRONMENT
J2  - SCI TOTAL ENVIRON
VL  - 796
PY  - 2021
PG  - 10
SN  - 0048-9697
DO  - 10.1016/j.scitotenv.2021.148835
UR  - https://m2.mtmt.hu/api/publication/32359579
ID  - 32359579
AB  - The influence of photo-oxidation on the quantification of isotactic polypropylene by Pyrolysis Gas Chromatography/ Mass Spectrometry (Pyr-GC/MS) was assessed. Beads (oval shape, similar to 5 mm) and fragments (irregular shaped, 250-50 mu m and 500-1000 mu m) were subjected to relatively harsh simulated accelerated weathering conditions (using a filtered xenon-arc reproducing sunlight's full spectrum) for up to 37 and 80 days, respectively. Samples collected (n = 10 replicates for each treatment) at increasing number of weathering days were analysed by Fourier-transform infrared spectroscopy with Attenuated Total Reflection (FTIR-ATR), scanning electron microscopy, and differential scanning calorimetry in order to assess the extent and the rate of degradation. The rate of surface oxidation occurred faster for fragments compared to beads, probably due to their higher surface area. Quantification of the polypropylene trimer (2,4-dimethyl-1-heptene) via double shot Pyr-GC/MS, showed that the signal of the trimer relative to the mass of polypropylene was reduced through weathering with a degradation rate of 1:3 faster for fragments over beads. Signal reduction and carbonyl index were correlated to show that polypropylene with a carbonyl index of >= 13 has a significantly reduced 2,4-dimethyl-1-heptene signal when compared to virgin material. Consequently, the quantification of polypropylene subjected to weathering under harsh conditions may be underestimated by 42% (fragments, carbonyl index: 18) to 49% (beads, carbonyl index: 30) when quantified by Pyr-GC/MS and using virgin polypropylene calibration standards. Pyrolysis at a lower temperature (350 degrees C) identified six degradation specific markers (oxidation products) that increased in concentration with weathering. Further comparisons between virgin and weathered microplastics may need to be considered to avoid underestimation of microplastic concentrations in future studies. (C) 2021 Elsevier B.V. All rights reserved.
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Bajer, K
AU  - Braun, U
TI  - Different aspects of the accelerated oxidation of polypropylene at increased pressure in an autoclave with regard to temperature, pretreatment and exposure media
JF  - POLYMER TESTING
J2  - POLYM TEST
VL  - 37
PY  - 2014
SP  - 102
EP  - 111
PG  - 10
SN  - 0142-9418
DO  - 10.1016/j.polymertesting.2014.05.006
UR  - https://m2.mtmt.hu/api/publication/24379731
ID  - 24379731
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Francois-Heude, A
AU  - Richaud, E
AU  - Leprovost, J
AU  - Heninger, M
AU  - Mestdagh, H
AU  - Desnoux, E
AU  - Colin, X
TI  - Real-time quantitative analysis of volatile products generated during solid-state polypropylene thermal oxidation
JF  - POLYMER TESTING
J2  - POLYM TEST
VL  - 32
PY  - 2013
IS  - 5
SP  - 907
EP  - 917
PG  - 11
SN  - 0142-9418
DO  - 10.1016/j.polymertesting.2013.04.008
UR  - https://m2.mtmt.hu/api/publication/23578211
ID  - 23578211
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Pang, MM
AU  - Pun, MY
AU  - Ishak, ZAM
TI  - Natural weathering studies of biobased thermoplastic starch from agricultural waste/polypropylene blends
JF  - JOURNAL OF APPLIED POLYMER SCIENCE
J2  - J APPL POLYM SCI
VL  - 129
PY  - 2013
IS  - 6
SP  - 3237
EP  - 3246
PG  - 10
SN  - 0021-8995
DO  - 10.1002/app.39054
UR  - https://m2.mtmt.hu/api/publication/23578212
ID  - 23578212
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Akonda, MH
AU  - Kandola, BK
AU  - Horrocks, AR
TI  - Effect of alkali and ultraviolet aging on physical, thermal, and mechanical properties of fibers for potential use as reinforcing elements in glass/silicate composites
JF  - POLYMERS FOR ADVANCED TECHNOLOGIES
J2  - POLYM ADVAN TECHNOL
VL  - 23
PY  - 2012
IS  - 11
SP  - 1454
EP  - 1463
PG  - 10
SN  - 1042-7147
DO  - 10.1002/pat.2067
UR  - https://m2.mtmt.hu/api/publication/22940993
ID  - 22940993
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Gascoin, N
AU  - Gillard, P
AU  - Mangeot, A
AU  - Navarro-Rodriguez, A
TI  - Literature survey for a first choice of a fuel-oxidiser couple for hybrid propulsion based on kinetic justifications
JF  - JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
J2  - J ANAL APPL PYROL
VL  - 94
PY  - 2012
SP  - 1
EP  - 9
PG  - 9
SN  - 0165-2370
DO  - 10.1016/j.jaap.2011.11.006
UR  - https://m2.mtmt.hu/api/publication/22940992
ID  - 22940992
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Reingrubera, E
AU  - Reussner, J
AU  - Sauer, C
AU  - Standler, A
AU  - Buchberger, W
TI  - Studies on the emission behavior of polypropylene by gas chromatography/mass spectrometry with static headspace or thermodesorption
JF  - JOURNAL OF CHROMATOGRAPHY A
J2  - J CHROMATOGR A
VL  - 1218
PY  - 2011
IS  - 21
SP  - 3326
EP  - 3331
PG  - 6
SN  - 0021-9673
DO  - 10.1016/j.chroma.2010.11.021
UR  - https://m2.mtmt.hu/api/publication/21595679
ID  - 21595679
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Li, JF
AU  - Yang, R
AU  - Yu, J
AU  - Wang, KH
AU  - Liu, Y
TI  - Study on the Effects of Nucleating Agents on Photooxidation Degradation of PP by FTIR and IM
JF  - SPECTROSCOPY AND SPECTRAL ANALYSIS
J2  - SPECTROSC SPECT ANAL
VL  - 29
PY  - 2009
IS  - 4
SP  - 918
EP  - 921
PG  - 4
SN  - 1000-0593
DO  - 10.3964/j.issn.1000-0593(2009)04-0918-04
UR  - https://m2.mtmt.hu/api/publication/21246265
ID  - 21246265
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Ismail, H
AU  - Osman, H
AU  - Mariatti, M
TI  - Effects of natural weathering on properties of recycled newspaper-filled polypropylene (PP)/natural rubber (NR) composites
JF  - POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING
J2  - POLYM-PLAST TECHNOL
VL  - 47
PY  - 2008
IS  - 7
SP  - 697
EP  - 707
PG  - 11
SN  - 0360-2559
DO  - 10.1080/03602550802129650
UR  - https://m2.mtmt.hu/api/publication/10083372
ID  - 10083372
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Sinmazcelik, T
TI  - Natural weathering effects on the mechanical and surface properties of polyphenylene sulphide (PPS) composites
JF  - MATERIALS AND DESIGN
J2  - MATER DESIGN
VL  - 27
PY  - 2006
IS  - 4
SP  - 270
EP  - 277
PG  - 8
SN  - 0264-1275
DO  - 10.1016/j.matdes.2004.10.022
UR  - https://m2.mtmt.hu/api/publication/10083374
ID  - 10083374
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Bortoluzzi, JH
AU  - Pinheiro, EA
AU  - Carasek, E
AU  - Soldi, V
TI  - Solid phase microextraction to concentrate volatile products from thermal degradation of polymers
JF  - POLYMER DEGRADATION AND STABILITY
J2  - POLYM DEGRAD STABIL
VL  - 89
PY  - 2005
IS  - 1
SP  - 33
EP  - 37
PG  - 5
SN  - 0141-3910
DO  - 10.1016/j.polymdegradstab.2004.12.021
UR  - https://m2.mtmt.hu/api/publication/21855871
ID  - 21855871
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
TI  - Chapter 6 Polymers with saturated carbon chain backbone
JF  - Techniques and Instrumentation in Analytical Chemistry
J2  - Techniques and Instrumentation in Analytical Chemistry
VL  - 25
PY  - 2005
IS  - C
SP  - 185
EP  - 437
PG  - 253
SN  - 0167-9244
DO  - 10.1016/S0167-9244(05)80007-1
UR  - https://m2.mtmt.hu/api/publication/23647911
ID  - 23647911
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Leong, YW
AU  - Abu, Bakar MB
AU  - Ishak, ZAM
AU  - Ariffin, A
TI  - Characterization of talc/calcium carbonate filled polypropylene hybrid composites weathered in a natural environment
JF  - POLYMER DEGRADATION AND STABILITY
J2  - POLYM DEGRAD STABIL
VL  - 83
PY  - 2004
IS  - 3
SP  - 411
EP  - 422
PG  - 12
SN  - 0141-3910
DO  - 10.1016/j.polymdegradstab.2003.08.004
UR  - https://m2.mtmt.hu/api/publication/24510898
ID  - 24510898
N1  - : /C-8403-2014
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Serrano, DP
AU  - Aguado, J
AU  - Escola, JM
AU  - Rodriguez, JM
AU  - Morselli, L
AU  - Orsi, R
TI  - Thermal and catalytic cracking of a LDPE-EVA copolymer mixture
JF  - JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
J2  - J ANAL APPL PYROL
VL  - 68-9
PY  - 2003
SP  - 481
EP  - 494
PG  - 14
SN  - 0165-2370
DO  - 10.1016/S0165-2370(03)00037-8
UR  - https://m2.mtmt.hu/api/publication/10083375
ID  - 10083375
LA  - English
DB  - MTMT
ER  -