Preparation and Properties of Halogen-Free Flame Retardant Blending Modification Polyester

2012 ◽  
Vol 463-464 ◽  
pp. 515-518
Author(s):  
Sheng Chen ◽  
Min Su ◽  
Jian Wu Lan ◽  
Qing Kang Zheng
Keyword(s):  
Thermal Stability ◽  
Differential Scanning Calorimetry ◽  
Flame Retardant ◽  
Melting Temperature ◽  
Polyethylene Terephthalate ◽  
Substitution Reaction ◽  
Oxygen Index ◽  
Limit Oxygen Index ◽  
Scanning Calorimetry ◽  
Halogen Free

Phosphorous-containing flame retardant additive for polyethylene terephthalate (PET), hexa(phenylamino)cyclotriphosphazene (HPACP) was synthesized by substitution reaction of hexachlorocyclotriphosphazene (HCCP) with aniline. The melting temperature of HPACP are 279.2°C, and HPACP possesses of favorable thermal stability. Flame-retardant effect of HPACP on PET was investigated by Differential Scanning Calorimetry (DSC) and Limit Oxygen Index (LOI) methods. With the content of flame retardant HPACP increasing, the melting enthalpy of PET reduced, while the melting temperature and onset temperature showed a decreasing tendency. With the weakening of melt dripping phenomenon, LOI of PET/ HPACP flame retardant systems increases with the increase of content of HPACP. LOI of PET containing 10 wt% of HPACP is 28.3.

Synthesis, Application of a Novel Halogen-Free Intumescent Flame Retardant Agent for Poplar Wood Veneer

2014 ◽  
Vol 1004-1005 ◽  
pp. 1022-1025
Author(s):  
Wang Wang Yu ◽  
Tao Huang ◽  
Wen Lei
Keyword(s):  
Flame Retardant ◽  
Oxygen Index ◽  
Raw Materials ◽  
Orthogonal Experiment ◽  
Influence Factors ◽  
Intumescent Flame Retardant ◽  
Limit Oxygen Index ◽  
Poplar Wood ◽  
Wood Veneer ◽  
Halogen Free

A novel non-halogen intumescent flame retardant agent (IFR) was prepared by using phosphoric acid, pentaerythritol and aniline as raw materials, a flame-retardant poplar wood veneer was prepared by treating the veneer with IFR. The influence factors of flame retardant processing technology on poplar wood veneer were studied by the orthogonal experiment. Flammability of the veneer was investigated by Limit Oxygen Index (LOI) test. The optimal impregnated time, impregnated temperature and impregnated concentration of IFR treated poplar wood veneer were 3h, 80°C and 18% respectively, which can make the veneer get the highest LOI of 46.7%.

Thermal Stability of N-Heterocycle-Stabilized Iodanes – A Systematic Investigation

2019 ◽  
Author(s):  
Andreas Boelke ◽  
Yulia A. Vlasenko ◽  
Mekhman S. Yusubov ◽  
Boris Nachtsheim ◽  
Pavel Postnikov
Keyword(s):  
Thermal Stability ◽  
Differential Scanning Calorimetry ◽  
Thermogravimetric Analysis ◽  
Systematic Investigation ◽  
Scanning Calorimetry ◽  
Thermal Stability Of

<p>The thermal stability of pseudocyclic and cyclic <i>N</i>-heterocycle-stabilized (hydroxy)aryl- and mesityl(aryl)-l<sup>3</sup>-iodanes (NHIs) through thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) is investigated. NHIs bearing <i>N</i>-heterocycles with a high N/C-ratio such as triazoles show among the lowest descomposition temperatures and the highest decomposition energies. A comparison of NHIs with known (pseudo)cyclic benziodoxolones is made and we further correlated their thermal stability with reactivity in a model oxygenation. </p>

scholarly journals EVALUATION THERMOANALYTICAL OF WHEAT FLOUR FORTIFIED WITH FOLIC ACID AND FERROUS SULPHATE

2009 ◽  
Vol 06 (12) ◽  
pp. 47-50
Author(s):  
Eliane Gonçalves ARAÚJO ◽  
Nedja Suely FERNANDES
Keyword(s):  
Thermal Stability ◽  
Differential Scanning Calorimetry ◽  
Folic Acid ◽  
Wheat Flour ◽  
Ferrous Sulphate ◽  
Scanning Calorimetry ◽  
Iron Sulphate ◽  
Derivative Thermogravimetry

In this work wheat flour aditived with folic acid and iron sulphate was evaluated by Thermogravimetry (TG), Derivative Thermogravimetry (DTG) and differential scanning calorimetry (DSC) for evaluation of the thermal stability. The results obtained showed that the samples of wheat flour have similar behaviour.

scholarly journals Thermal behaviour study of solid state compounds of manganese (II), zinc (II) and lead (II) with cinnamic acid

1998 ◽  
Vol 23 (0) ◽  
pp. 09-16
Author(s):  
Marco Aurélio da Silva CARVALHO FILHO ◽  
Massao IONASHIRO
Keyword(s):  
Thermal Stability ◽  
Aqueous Solution ◽  
Differential Scanning Calorimetry ◽  
Cinnamic Acid ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Manganese Zinc ◽  
Behaviour Study ◽  
Derivative Thermogravimetry

Compounds of cinnamic acid with manganese, zinc and lead have been prepared in aqueous solution. Thermogravimetry, derivative thermogravimetry (TG, DTG), differential scanning calorimetry (DSC), X-ray diffraction and complexometry have been used in the characterization as well as in the study of the thermal stability and interpretation concerning the thermal decomposition.

scholarly journals Conversion of palm oil to new sulfur-based polymer by inverse vulcanization

2021 ◽  
Vol 287 ◽  
pp. 02014
Author(s):  
Amin Abbasi ◽  
Mohamed Mahmoud Nasef ◽  
Wan Zaireen Nisa Yahya ◽  
Muhammad Moniruzzaman
Keyword(s):  
Thermal Stability ◽  
Differential Scanning Calorimetry ◽  
Fourier Transform ◽  
Thermogravimetric Analysis ◽  
Palm Oil ◽  
Elemental Sulfur ◽  
Molten State ◽  
Scanning Calorimetry ◽  
Environmental Friendly ◽  
Sulfur Containing

The conversion of palm oil into a sulfur-based polymer by copolymerization with sulfur powder at its molten state is herein reported. The obtained sulfur-containing polymer was characterized using Fourier transform infrared (FTIR), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC) to demonstrate the successful conversion. The disappearance of the peaks related to vinylic groups of oil together with the appearance of a peak representing C-H rocking vibrations in the vicinity of C-S bonds confirmed the copolymerization of sulfur with oil. TGA revealed that the polymers have thermal stability up to 230°C under nitrogen and the polymers leave 10% sulfur-rich ash. DSC proved that a small amount of elemental sulfur remained unreacted in the polymer, which showed amorphous and heavily crosslinked structure resembling thermosets. These copolymers are an environmental-friendly polymeric material promoting the utilization of the abundant sulfur while also adding value to palm oil.

scholarly journals Thermal stability and thermal decomposition of sucralose

2018 ◽  
Vol 39 (4) ◽  
pp. 21
Author(s):  
Gilbert Bannach ◽  
Rafael R. Almeida ◽  
Luis G. Lacerda ◽  
Egon Schnitzler ◽  
Massao Ionashiro
Keyword(s):  
Thermal Stability ◽  
Thermal Analysis ◽  
Differential Scanning Calorimetry ◽  
Thermal Decomposition ◽  
Differential Thermal Analysis ◽  
Infrared Spectroscopy ◽  
Scanning Calorimetry ◽  
Thermoanalytical Techniques ◽  
Thermal Stability Of

Several papers have been described on the thermal stability of the sweetener, C12H19Cl3O8 (Sucralose). Nevertheless no study using thermoanalytical techniques was found in the literature. Simultaneous thermogravimetry and differential thermal analysis (TG-DTA), differential scanning calorimetry (DSC) and infrared spectroscopy, have been used to study the thermal stability and thermal decomposition of sweetener.

scholarly journals Thermal stability of Sn anode material with non-aqueous electrolytes in sodium-ion batteries

2018 ◽  
Vol 6 (41) ◽  
pp. 20383-20392 ◽  
Author(s):  
Yongho Lee ◽  
Hyojun Lim ◽  
Sang-Ok Kim ◽  
Hyung-Seok Kim ◽  
Ki Jae Kim ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Differential Scanning Calorimetry ◽  
Thermal Behavior ◽  
Anode Material ◽  
Sodium Ion ◽  
Aqueous Electrolytes ◽  
Sodium Ion Batteries ◽  
Scanning Calorimetry ◽  
Sn Anode ◽  
Thermal Stability Of

The thermal behavior of fully lithiated and sodiated Sn electrodes cycled in a MePF6 (Me = Li or Na)-based electrolyte was studied using differential scanning calorimetry (DSC).

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