Tag: 500-600

On February 15, 2022, Li, Dongyang; Panchal, Kushal; Vasudevan, Naveen Kumar; Mafi, Roozbeh; Xi, Li published an article.Safety of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate The title of the article was Effects of molecular design parameters on plasticizer performance in poly(vinyl chloride): A comprehensive molecular simulation study. And the article contained the following:

Plasticizers for poly(vinyl chloride) (PVC), including ortho- and terephthalates, trimellitates, citrates, and various aliphatic dicarboxylates, are systematically studied with all-atom mol. simulation. Effects of plasticizer mol. structure on its performance, as measured by performance metrics including its thermodn. compatibility with PVC, effectiveness of reducing the material’s Young’s modulus, and migration rate in the PVC matrix, are evaluated in the framework of seven mol. design parameters. Previous exptl. findings on the plasticizer structure-performance relationship are also reviewed. Comparison with experiments establishes the reliability of our simulation predictions. The study aims to provide a comprehensive set of guidelines for the selection and design of high-performance plasticizers at the mol. level. Mol. mechanisms for how each design parameter influences plasticizer performance metrics are also discussed. Moreover, we report a nontrivial dependence of plasticizer migration rate on temperature, which reconciles seemingly conflicting exptl. reports on the migration tendency of different plasticizers. The experimental process involved the reaction of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate(cas: 3319-31-1).Safety of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate

The Article related to plasticizer pvc simulation structure property, Plastics Manufacture and Processing: Formulating Procedures and Compositions and other aspects.Safety of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On July 1, 2016, Pan, Ye-Tang; Trempont, Cedric; Wang, De-Yi published an article.Product Details of 3319-31-1 The title of the article was Hierarchical nanoporous silica doped with tin as novel multifunctional hybrid material to flexible poly(vinyl chloride) with greatly improved flame retardancy and mechanical properties. And the article contained the following:

Antimony trioxide (Sb2O3) is a traditional widely used flame retardant in flexible poly(vinyl chloride) (fPVC). However, more and more serious drawbacks of this flame retardant, such as the underlying toxicity and decreasing reserve in the earth’s crust, obligate the development of its substitutes. To address this issue, we synthesized novel mesoporous flame retardant (TOS) by grafting of tin on hierarchical nanoporous silica (HPS) via a facile in-situ synthesis method. Fourier transform IR spectrum (FT-IR), XPS, X-ray diffraction (XRD), field emission gun scanning electron microscope (FEGSEM), transmission electron microscopy (TEM) and N2 adsorption-desorption measurement were utilized to investigate the composition and structure of the mesoporous material. TOS, HPS, com. tin oxide (SnO2) and Sb2O3 were added into fPVC composites resp. to carry out comparative study. Results showed limiting oxygen index (LOI) of fPVC composite was significantly increased in presence of TOS, accompanied with UL-94 V-0 rating without dripping. Meanwhile, TOS also enhanced the tensile properties of fPVC composite significantly. All the data illuminated that TOS greatly improved flame retardancy and mech. property of fPVC as a novel multifunctional hybrid materials. The experimental process involved the reaction of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate(cas: 3319-31-1).Product Details of 3319-31-1

The Article related to nanoporous silica doped tin pvc flame retardancy, Plastics Manufacture and Processing: Physical Properties and Testing Methods and other aspects.Product Details of 3319-31-1

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Kalkan-Sevinc, Zehra; Ling, Michael T. K. published an article in 2018, the title of the article was Blending Optimization of Non-Dioctyl Phthalate Plasticized Poly(vinyl chloride) Formulations.Name: Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate And the article contains the following content:

The use of non-ortho-phthalate plasticizers in poly(vinyl chloride) (PVC) packaging materials and medical devices has been in increasing demand due to worldwide regulatory trends to minimize or eliminate phthalate plasticizers (particularly di(2-ethylhexyl)phthalate (DEHP) or dioctyl phthalate (DOP)) in the PVC industry. This study evaluates the dry-blending cycle time of a suspension grade PVC formulated with various non-DOP plasticizers, di-(2-ethylhexyl) terephthalate (DEHT or DOTP), tris(2-ethylhexyl) trimellitate (TEHTM or TOTM) and alkyl sulfonic Ph ester (ASE), and compares them with the DOP standard A design of experiments was also conducted to study the critical dry-blending parameters for optimization of PVC formulated with only DEHT. Effects of PVC temperature (measured during plasticizer addition to the blender), plasticizer pre-heat temperature, plasticizer and lubricant concentrations and the method of plasticizer addition on the dry-blending cycle time and peak amperage of the blender were studied. The blending cycle time is shown to be related to the resultant plasticizer efficiency and the peak amperage is related to the power consumption (the energy required to mix the PVC). The experimental process involved the reaction of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate(cas: 3319-31-1).Name: Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate

The Article related to non dioctyl phthalate plasticizer polyvinyl chloride formulation dry blending, Plastics Manufacture and Processing: Formulating Procedures and Compositions and other aspects.Name: Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Yang, Hsinjin Edwin; Schall, Frederick P. published an article in 2016, the title of the article was Micro-scale study on the flammability of polymers.Application of 3319-31-1 And the article contains the following content:

The flammability of polymers is mainly evaluated through ignitability, flame spread and heat release. Numerous tests have been developed and performed either in laboratory scale, with certain dimension of samples, or during industrial manufacturing on final products. Several of the most widely used tests are UL 94, Oxygen Index (OI), Oxygen Bomb Calorimeter and the Cone Calorimeter. A relatively new test method using a Micro-scale Combustion Calorimeter (MCC) instrument developed by Dr. Richard Lyon of the United States Federal Aviation Administration (FAA) and standardized in ASTM International as ASTM D7309 is now com. available. The MCC test has the potential to quant. study materials flammability characteristics at the micro-scale level. With test specimens of 2 ~10 mg in mass, information, such as, ignition temperature, combustion temperature, heat release rate (HRR), heat release capacity (ηc), and total heat of combustion (HOC) is obtained. The experimental process involved the reaction of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate(cas: 3319-31-1).Application of 3319-31-1

The Article related to polypropylene pbt pvc fluoropolymer flammability combustion calorimeter, Plastics Manufacture and Processing: Physical Properties and Testing Methods and other aspects.Application of 3319-31-1

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On October 24, 2019, Blazquez-Blazquez, Enrique; Barranco-Garcia, Rosa; Cerrada, Maria L.; Perez, Ernesto published an article.Related Products of 3319-31-1 The title of the article was Effect of thermo-oxidation on loss of plasticizers, on crystalline features and on properties in a metallocene isotactic polypropylene. And the article contained the following:

Incorporation of a low content of several plasticizers into a metallocene isotactic polypropylene (iPP) has been performed in order to learn about their stability and performance by the action of a thermo-oxidative degradation treatment at 95 °C for different times. Comparison with the behavior exhibited by the material with di(2-ethylhexyl) phthalate (DEHP) is established for a feasible replacement of its use for contributing to environmental and human health preservation. Dependence of these aggressive degrading conditions on plasticizer loss is analyzed as well as elucidation of degradation influence on the iPP crystalline characteristics. The results show that chem. changes associated with this degradation process hinder formation of the orthorhombic γ crystalline lattice and postpone the overall crystallization capability. Accordingly, the final features in the film surface and the mech. response are significantly affected by degradation time. The TOTM plasticizer can be considered an excellent candidate for DEHP substitution. The experimental process involved the reaction of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate(cas: 3319-31-1).Related Products of 3319-31-1

The Article related to metallocene isotactic polypropylene thermal oxidation plasticizer loss crystalline property, Plastics Manufacture and Processing: Formulating Procedures and Compositions and other aspects.Related Products of 3319-31-1

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Duchowny, Anton; Adams, Alina published an article in 2021, the title of the article was Compact NMR spectroscopy for low-cost identification and quantification of PVC plasticizers.Safety of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate And the article contains the following content:

Polyvinyl chloride (PVC), one of the most important polymer materials nowadays, has a large variety of formulations through the addition of various plasticizers to meet the property requirements of the different fields of applications. Routine anal. methods able to identify plasticizers and quantify their amount inside a PVC product with a high anal. throughput would promote an improved understanding of their impact on the macroscopic properties and the possible health and environmental risks associated with plasticizer leaching. In this context, a new approach to identify and quantify plasticizers employed in PVC commodities using low-field NMR spectroscopy and an appropriate non-deuterated solvent is introduced. The proposed method allows a low-cost, fast, and simple identification of the different plasticizers, even in the presence of a strong solvent signal. Plasticizer concentrations below 2 mg mL-1 in solution corresponding to 3 wt% in a PVC product can be quantified in just 1 min. The reliability of the proposed method is tested by comparison with results obtained under the same exptl. conditions but using deuterated solvents. Addnl., the type and content of plasticizer in plasticized PVC samples were determined following an extraction procedure. Furthermore, possible ways to further decrease the quantification limit are discussed. The experimental process involved the reaction of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate(cas: 3319-31-1).Safety of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate

The Article related to pvc plasticizer identification quantification nmr spectroscopy, pvc, identification, low-field nmr spectroscopy, non-deuterated solvent, plasticizer, quantification, Plastics Manufacture and Processing: Formulating Procedures and Compositions and other aspects.Safety of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Boehnlein-Mauss, Jutta; Kroeber, Hartmut published an article in 2017, the title of the article was The REACH Impact on Gun Propellant Formulations.Safety of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate And the article contains the following content:

REACH is the abbreviation for Registration, Evaluation, Authorisation, and Restriction of Chems. It is a regulation of the European Union, adopted to improve the protection of human health and the environment from the risks that can be posed by chems., while enhancing the competitiveness of the EU chems. industry. Current gun propellant formulations employ environmentally unfriendly materials, like dibutyl-phthalate (DBP). In this contribution a study was conducted, which aims to evaluate the environmental friendliness of common gun propellant ingredients and to propose environmentally acceptable substitutes for harmful substances. In the first step a simplified assessment matrix based on the REACH relevant properties of chems. was developed. The matrix consists of the main criteria of the new European regulation, their legal limit values, and their evaluation by REACH. For a selected number of ingredients of commonly used gun propellants the toxicol. and eco-toxicol. data were collected in order to carry out an initial assessment under the REACH regulation. In this context some substances show remarkable and critical properties and it was started to find suitable substitutes, which were first assessed with regard to the REACH regulation. As an example potential substitutes for nitroglycerin were exptl. introduced in gun propellant formulations and their main properties were determined and compared with the standard formulation. The experimental process involved the reaction of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate(cas: 3319-31-1).Safety of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate

The Article related to registration evaluation authorisation restriction chem gun propellant formulation, Propellants and Explosives: Incendiaries, Pyrotechnics, Smoke Generators, etc. and other aspects.Safety of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On June 25, 2016, Diogo, Joao C. F.; Avelino, Helena M. N. T.; Caetano, Fernando J. P.; Fareleira, Joao M. N. A.; Wakeham, William A. published an article.Quality Control of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate The title of the article was Tris(2-ethylhexyl) trimellitate (TOTM) as a potential industrial reference fluid for viscosity at high temperatures and high pressures: New viscosity, density and surface tension measurements. And the article contained the following:

Tris(2-ethylhexyl) trimellitate (TOTM) was recently suggested as a reference fluid for industrial use associated with high viscosity at elevated temperature and pressure. Viscosity and d. data have already been published on one sample covering the temperature range (303-373) K and at pressures up to about 65 MPa. The viscosity covered a range from about (9 to 460) mPa s. In the present article we study several other characteristics of TOTM that must be available if it were to be adopted as a standard First, we present values for the viscosity and d. obtained with a different sample of TOTM to examine the important feature of consistency among different samples. Vibrating-wire viscosity measurements were performed at pressures from (5 to 100) MPa, along 6 isotherms between (303 and 373) K. D. measurements were carried out from (293 to 373) K up to 68 MPa, along 4 isotherms, using an Anton Paar DMA HP vibrating U-tube densimeter. Secondly, we report a study of the effect of water contamination on the viscosity of TOTM, performed using an Ubbelhode viscometer under atm. pressure. Finally, in order to support the use of TOTM as a reference liquid for the calibration of capillary viscometers, values of its surface tension, obtained by the pendant drop method, are provided. The experimental process involved the reaction of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate(cas: 3319-31-1).Quality Control of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate

The Article related to trisethylhexyl trimellitate viscosity density surface tension high temperature pressure, Phase Equilibriums, Chemical Equilibriums, and Solutions: Electrolytic Solutions and other aspects.Quality Control of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On March 15, 2022, Guimarey, Maria J. G.; Lineira del Rio, Jose M.; Fernandez, Josefa published an article.Recommanded Product: 3319-31-1 The title of the article was Improvement of the lubrication performance of an ester base oil with coated ferrite nanoadditives for different material pairs. And the article contained the following:

In the present work, lubrication properties (friction and wear) of a synthetic ester oil, tris(2-ethylhexyl) trimellitate (TOTM) containing ferrite nanoparticles coated with oleic acid (F3O4-OA) were investigated for two different material pairs: steel ball-steel disk and silicon nitride ball-steel disk. Thus, four TOTM nanolubricants were formulated: TOTM + 0.010 wt% Fe3O4-OA, TOTM + 0.015 wt% Fe3O4-OA, TOTM + 0.020 wt% Fe3O4-OA and TOTM + 0.025 wt% Fe3O4-OA showing all of them a moderate time stability due to the oleic acid coating. Wettability behavior of the ferrite-based nanolubricants on steel surface was analyzed, revealing that the addition of Fe3O4-OA nanoparticles in TOTM decreases the contact angle between the steel surface and TOTM lubricant surface. Friction sliding tests were performed with the neat TOTM and with the formulated nanolubricants under a 20 N of load. All nanolubricants showed lower coefficients of friction than those reached with TOTM base oil for both material pairs. Worn area was significantly reduced for all Fe3O4-OA concentrations in the steel-steel contact and for the highest concentrations in the silicon nitride-steel contact. Specifically, the largest achieved reductions were for the TOTM + 0.010 wt% F3O4-OA nanolubricant: 43% reduction in friction (silicon nitride-steel) and reductions of 17% in wear track width, 42% in wear track deep and 36% in area (steel-steel). In addition, roughness anal. and Raman microscopy of the tested disks showed that tribofilm formation and surface repairing mechanisms occur. The experimental process involved the reaction of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate(cas: 3319-31-1).Recommanded Product: 3319-31-1

The Article related to ester base oil ferrite nanoadditive material pair lubrication, Fossil Fuels, Derivatives, and Related Products: Lubricants and Functional Fluids and other aspects.Recommanded Product: 3319-31-1

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On May 15, 2021, Hu, Chenghong; He, Xi; Han, Yunyan; Ye, Xiangyuan; Fan, Mingjin; Zhou, Feng; Liu, Weimin published an article.HPLC of Formula: 3319-31-1 The title of the article was High performance lubricants prepared from Naphthalene-1,4,5,8-Tetracarboxylic acid: Synthesis, physicochemical and Tribological properties. And the article contained the following:

Ester oils (1,4,5,8-4Cn) were synthesized through esterification of naphthalene-1,4,5,8-tetracarboxylic acid with aliphatic alcs. The mol. structures were confirmed with 1H NMR, 13C NMR, FT-IR and elemental anal. Their KV, VI, FP, PP, oxidation and thermal stabilities, friction reducing and anti-wear performances were measured. The results demonstrate that the 1,4,5,8-4Cn have obviously higher thermal and oxidation stabilities than the existing esters DOS, PIS and Phe-3Ci8. They also have predominant tribol. behavior at both 50°C and 120°C. Analyzing from the results of ECR, QCM and XPS, it could be concluded that strongly and orderly physicochem. adsorption of the 1,4,5,8-4Cn mols. on the sliding surfaces is the critical factor for these oils to demonstrate excellent tribol. performance for steel contacts. The experimental process involved the reaction of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate(cas: 3319-31-1).HPLC of Formula: 3319-31-1

The Article related to naphthalene tetracarboxylic acid lubricant esterification physicochem tribol property, Fossil Fuels, Derivatives, and Related Products: Lubricants and Functional Fluids and other aspects.HPLC of Formula: 3319-31-1

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics