RETRACTED: Detection of degradation of ABS materials via DSC

Blom, H. P.; Yeh, Rosa; Wojnarowski, R.J.; Ling, Michael T.K.

doi:10.1016/j.tca.2006.01.015

Cited by 37 publications

(23 citation statements)

References 3 publications

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“…However, during accelerated aging, a gradual increase in the T g values was recorded with increasing number of cycles, possibly because of physical aging. 20 An increase in the glass transition of the rubber phase (butadiene) was reported by Blom et al 25 in their study of ABS degradation via DSC. This was explained by the fact that this phase is most susceptible to oxidative degradation, which leads to crosslink formation and decreased chain mobility.…”

Section: Dscmentioning

confidence: 70%

Preparation of poly(acrylonitrile–butadiene–styrene)/montmorillonite nanocomposites and degradation studies during extrusion reprocessing

Karahaliou

Tarantili

2009

J of Applied Polymer Sci

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In this study, the preparation of organically modified montmorillonite/poly(acrylonitrile-butadienestyrene) (ABS) nanocomposites was studied by melt blending in a twin-screw extruder. The composite material was subjected to a series of five extrusion cycles, and the effect of reprocessing on the material's structural properties was investigated. More specifically, chemical changes were studied with attenuated total reflectance/Fourier transform infrared analysis, the thermal response was recorded by differential scanning calorimetry experiments, and the thermal stability was detected with thermogravimetric analysis. Also, the rheological properties of these blends were investigated via melt flow index tests as a measure of their processability during melt mixing and molding processes. Furthermore, the mechanical strength of the obtained mixtures was explored, and the observed interactions were interpreted in terms of the influence of each component on the functional properties of the final mixture. This attempt enriched our knowledge about the recycling of ABS, with the additional aspect of the use of collected data from more complex systems, that is, composite materials, where the montmorillonite nanoparticles play a role in the interactions initiated by repeated processing. The experimental results of this study show that the reprocessing of ABS/montmorillonite induced oxidation products, but the rheological, mechanical, and thermal properties and the thermal and color stabilities of the composites remained almost stable.

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Section: Dscmentioning

confidence: 70%

Preparation of poly(acrylonitrile–butadiene–styrene)/montmorillonite nanocomposites and degradation studies during extrusion reprocessing

Karahaliou

Tarantili

2009

J of Applied Polymer Sci

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“…Typically, ABS consists of a styrene/acrylonitrile continuous phase partially grafted to a dispersed butadiene (rubber) phase. The rubber phase acts as an impact modifier, and imparts excellent mechanical properties to the material [45,46]. It is also a relatively hydrophobic polymer.…”

Section: Resultsmentioning

confidence: 99%

Analysis of wear abrasion resistance of superhydrophobic acrylonitrile butadiene styrene rubber (ABS) nanocomposites

Milionis

Languasco

Loth

et al. 2015

Chemical Engineering Journal

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Please cite this article as: A. Milionis, J. Languasco, E. Loth, I.S. Bayer, Analysis of wear abrasion resistance of superhydrophobic acrylonitrile butadiene styrene rubber (ABS) nanocomposites, Chemical Engineering Journal (2015), doi: http://dx.ABSTRACT Acrylonitrile butadiene styrene rubber (ABS) superhydrophobic nanocomposites containing various concentrations of hydrophobic silica nanoparticles were obtained by solution processing and spray coating on aluminum surfaces. Wear abrasion resistance measurements were conducted on the superhydrophobic nanocomposites as function of silica nanoparticle concentration. A remarkable increase in coating wear abrasion resistance (1700 linear abrasion cycles under 20.5 kPa) was measured when the nanocomposite coatings were fortified with a synthetic rubber resin adhesive Plasti Dip™. Detailed wetting measurements before and during abrasion cycles were performed. Changes in surface microtexture were monitored with scanning electron microscopy (SEM) as well as confocal microscopy for surface roughness changes. Wear abrasion of sufficiently thick coatings indicated that there was wear similarity (maintenance of hierarchical texture) throughout the coating thickness during cyclic abrasion. Thermal resistance of the coatings was improved by applying a thin primer layer containing multi-walled carbon nanotubes dispersed in a fluoracrylic polymer solution (Capstone ST-110). The superhydrophobicity of the coatings did not degrade until 420 o C. Simplicity of the process and commercial availability of the materials in large scale can open many practical applications of this coating material system in which water-repellent, wear abrasion resistance is needed particularly for metal surfaces.2

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“…[16][17][18][19][20][21] In the study of these dimethacrylate resins it is important to understand their thermal behavior, thus Thermoanalytical techniques such as Simultaneous Thermogravimetric Analysis -Differential Thermal Analysis (TGA-DTA) and Differential Scanning Calorimetry (DSC) are used in order to determine their thermal stability, degradation steps, glass transition, crystalline transition, crystallization, melt, and polymer cure. [22][23][24][25][26][27][28] Another important point is to study the dimethacrylate monomers' conversion, using different initiators systems. The Mid Infrared Spectroscopy (MIR) is used to get this information, so that it is possible to measure which system is more advantageous.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, thermal studies and conversion degree of dimethacrylate polymers using new non-toxic coinitiators

Alarcon¹,

Holanda²,

Rinaldo³

et al. 2017

Quim. Nova

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The aim of this paper is to replace toxic coinitiators (tertiary amines) by non-toxic compounds such as glycerol and inositol (polyalcohol) in dimethacrylate resins. For this purpose, mid infrared spectroscopy (MIR) was used to calculate the monomers' degree of conversion (%DC); as well as simultaneous Thermogravimetric Analysis -Differential Thermal Analysis (TGA-DTA) and Differential Scanning Calorimetry (DSC) were conducted to evaluate thermal stability, degradation steps, and thermal events. The use of different initiator systems did not modify the thermal events or the thermal stability of each of the dimethacrylate resins. Results show a substitution of system 2 (toxicity) by system 3 (low toxicity), which had a good conversion velocity and total conversion in some monomers, is plausible.

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RETRACTED: Detection of degradation of ABS materials via DSC

Cited by 37 publications

References 3 publications

Preparation of poly(acrylonitrile–butadiene–styrene)/montmorillonite nanocomposites and degradation studies during extrusion reprocessing

Preparation of poly(acrylonitrile–butadiene–styrene)/montmorillonite nanocomposites and degradation studies during extrusion reprocessing

Analysis of wear abrasion resistance of superhydrophobic acrylonitrile butadiene styrene rubber (ABS) nanocomposites

Synthesis, thermal studies and conversion degree of dimethacrylate polymers using new non-toxic coinitiators

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