TG/FT–IR/MS study on thermal decomposition of polypropylene/biomass composites

Părpăriţă, Elena; Nistor, Manuela T.; Popescu, Maria-Cristina; Vasile, Cornelia

doi:10.1016/j.polymdegradstab.2014.06.001

Cited by 102 publications

(21 citation statements)

References 17 publications

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“…The band at 806.25 cm -1 indicated the presence of CH2 rocking and C-CH3 stretching vibrations in PP and -CH2 out of plane deformation vibration in the rice straw stem fiber (Bledzki and Faruk 2005). Changes in the position and intensity of these bands reflected a different type and yield of volatile products evolved during decomposition (Părpăriţă et al 2014b). These studies confirmed the reduction of hemicellulose and lignin contents after fiber mercerization.…”

Section: Fourier Transform Infrared (Ftir) Spectroscopy Testsupporting

confidence: 57%

Study of Sound Absorption Coefficients and Characterization of Rice Straw Stem Fibers Reinforced Polypropylene Composites

Jayamani¹,

Hamdan²,

Rahman³

et al. 2015

BioResources

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In this study, both untreated rice straw stem fibers and fibers treated with sodium hydroxide were used. Maleic anhydride polypropylene (MAPP) was used to enhance adhesion of the fiber with the matrix. Composites were prepared with various combinations of fiber, ranging from 10 wt.% to 25 wt.%, and polypropylene in addition to 2 wt.% MAPP. These composites were then tested for acoustical, mechanical, thermal, infrared spectral, and morphological properties. The fibers were treated by being soaked in 5 wt.% NaOH solution at 30 C for 30 min. The composites with treated fiber exhibited higher thermal stability, tensile strength, sound absorption, and fiber-matrix adhesion than the composites with untreated fiber. The results of sound absorption measurements showed that the composites with higher fiber content had better sound absorption than the composites with lower fiber content. The changes in the peaks in the Fourier transform infrared spectrum indicate that the alkaline treatment removed hemicellulose and lignin from the rice straw stem fibers.

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Section: Fourier Transform Infrared (Ftir) Spectroscopy Testsupporting

confidence: 57%

Study of Sound Absorption Coefficients and Characterization of Rice Straw Stem Fibers Reinforced Polypropylene Composites

Jayamani¹,

Hamdan²,

Rahman³

et al. 2015

BioResources

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“…FTIR spectra for the evolved gaseous products in gas phase of iron alginate 11 Figure 5 FTIR spectra of typical groups as a function of temperature for iron alginate Figure 6 presents the evolution of main gas products with temperature increases during iron alginate thermal degradation according to the ion intensities from MS. The main mass spectra (MS) in the TG process of iron alginate thermal degradation by TG coupled with MS analysis are as follows: in the plot of the ion intensity corresponds with the first TG step, fragments at m/z 17 12 (HO + ), 18 (H 2 O) and 44 (CO 2 ) prove the release of H 2 O [28] and CO 2 [29] . This indicates the chemical reactions of dehydroxylation and decarboxylation take place in the degradation process of iron alginate.…”

Section: Figure 4bmentioning

confidence: 99%

Thermal degradation properties of biobased iron alginate film

Liu

Wang

Zhu

et al. 2016

Journal of Analytical and Applied Pyrolysis

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The flame retardancy and pyrolysis behavior of iron alginate were investigated by a microscale combustion calorimeter (MCC), a thermogravimetric analyzer which was coupled with a Fourier transform infrared spectroscopy and a mass spectrometry (TG-FTIR-MS), and a pyrolysis-gas chromatography-mass spectrometry (Py-GC-MS), respectively. Large differences in the flame retardancy and pyrolysis behavior were observed from the MCC and Py-GC-MS results of iron alginate and sodium alginate. The MCC results showed that iron ions seriously reduced the value of peak heat release rate (PHRR) of alginate at lower temperature. TG-FTIR-MS and Py-GC-MS results indicated that iron ions influenced the devolatilisation products upon pyrolysis process. The pyrolysis of iron alginate was found to yield much less gaseous products than sodium alginate. And it was suggested that the iron ions strongly catalyzed alginate to produce H 2 O, CO 2 and other gaseous compounds which owned lower combustion heat values, resulting in the improvement of flame retardancy for iron alginate. On the basis of the results of TG-FTIR-MS and Py-GC-MS of iron alginate, the possible thermal degradation mechanism of iron alginate was proposed. The results obtained from this study might supply useful message for comprehending the flame retardant mechanism of alginates.

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“…Luminous flux and specific light density parameters under flameless conditions of TPU composite were determined by smoke density tester (SDT) in order to analyze the smoke performance. And thermal weight loss rate of composite materials was tested by TG . The thermogravimetric infrared spectroscopy (TG‐IR) technique was used to test the components …”

Section: Introductionmentioning

confidence: 99%

“…And thermal weight loss rate of composite materials was tested by TG. 31,32 The thermogravimetric infrared spectroscopy (TG-IR) technique was used to test the components. 33 2 | EXPERIMENTAL SECTION…”

Section: Introductionmentioning

confidence: 99%

Properties of flame‐retardant TPU based on para‐aramid fiber modified with iron diethyl phosphinate

Chen

Wei

Wang

et al. 2018

Polymers for Advanced Techs

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In this paper, a new type of flame retardant (AF‐Fe) based on para‐aramid fiber (AF) which was modified with iron diethyl phosphinate was applied for thermoplastic polyurethane elastomer (TPU). The flame‐retardant properties of TPU were tested using cone calorimeter test, smoke density test, and thermogravimetric analysis/infrared spectrometry. The cone calorimeter test showed that AF‐Fe can greatly reduce the heat release rate, total heat release, smoke factor, and other parameters of TPU composites compared with the sample of TPU/AF. For example, the pHRR of the composite with 1.0 wt% AF‐Fe was reduced by 15.19% compared with the sample with the same content of pure AF. In addition, the smoke factor of TPU/AFFe3 was reduced by 50.52% and 15.63% compared with TPU0 and TPU/AF respectively. The results of smoke density test showed that the luminous flux of TPU/AFFe3 was increased by 79.26% compared with the sample of TPU/AF. The TG results revealed that the sample with TPU/AFFe3 had lower weight loss rate and higher char residue content at 700°C compared with the sample of TPU/AF.

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TG/FT–IR/MS study on thermal decomposition of polypropylene/biomass composites

Cited by 102 publications

References 17 publications

Study of Sound Absorption Coefficients and Characterization of Rice Straw Stem Fibers Reinforced Polypropylene Composites

Study of Sound Absorption Coefficients and Characterization of Rice Straw Stem Fibers Reinforced Polypropylene Composites

Thermal degradation properties of biobased iron alginate film

Properties of flame‐retardant TPU based on para‐aramid fiber modified with iron diethyl phosphinate

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