Quantifying the synergistic effect of dispersion state and interfacial adhesion contributions on impact strength of core shell rubber-toughened glassy polymers

Khoubi-Arani, Zahra; Mohammadi, Naser; Moghbeli, Mohammad Reza; Pötschke, Petra

doi:10.1039/c5ra23206f

Cited by 5 publications

(2 citation statements)

References 31 publications

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“…This finding is not exclusive for ultrasound attenuation. Namely, the impact strength of a glassy polymer also synergistically improved via thermal annealing of its nanocomposite containing core–shell rubber particles with minimum size disparity . Inverse dynamic heterogeneity, however, was implemented for toughening or shock resistance as rubbery inclusions in glassy matrix.…”

Section: Discussionmentioning

confidence: 99%

“…Nonetheless, thermal annealing at desired temperature may accelerate the structural and phase morphology evolution, resulting in high performance products even after their synthesis and molding. For example, high temperature annealing synergistically improved the impact strength of poly(vinyl chloride) containing artificially aggregated core–shell rubber nanoparticles as much as 17 times due to enhanced interfacial adhesion on one hand and declined component size disparity on the other hand …”

Section: Introductionmentioning

confidence: 99%

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Heterogeneity Assisted Damping Enhancement of Low and High Frequency Mechanical Waves in a Soft Polymer Nanocomposite

Khoubi-Arani

Mohammadi

2017

Ind. Eng. Chem. Res.

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Low-amplitude dynamic and morphological heterogeneities of a biphasic copolymeric matrix were amplified by soft nanoparticle loading and thermally induced phase separation (TIPS). The evolution of system concentration fluctuation size (ξ) was quantified as a function of quench depth in its closed-loop like phase diagram. The system characterization was then complemented by extracting its bimodal heterogeneity index as normalized interface length over area (L/A) from phase imaging analysis of atomic force microscopy (AFM). Both criteria were amplified by annealing temperature rise, resulting in damping enhancement under low and high frequency mechanical waves, shown by dynamic mechanical thermal analysis (DMTA) and ultrasound spectroscopy, respectively. At the highest annealing temperature, 160 °C, the morphogenesis led to simultaneous increase of effective damping temperature range (ΔT eff) and maximum tan δ to 190 °C and 2, respectively. Finally, damping efficacy (D eff, i.e., ΔT eff[tan δ]max) and the ultrasound attenuation coefficient (α) were linearly proportional to ξ and L/A, while intercorrelated through a Williams–Landau–Ferry (WLF) type equation.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Heterogeneity Assisted Damping Enhancement of Low and High Frequency Mechanical Waves in a Soft Polymer Nanocomposite

Khoubi-Arani

Mohammadi

2017

Ind. Eng. Chem. Res.

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The influence of viscosity and composition of ABS on the ABS/SBS blend morphology and properties

Rossato

Lemos

Mantovani

2018

J of Applied Polymer Sci

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Acrylonitrile–butadiene–styrene (ABS) shows excellent impact resistance and good stiffness. The incorporation of thermoplastic elastomer into ABS may consist in an interesting approach to further improve the toughness of ABS, in addition to tuning its compatibility with reinforcements. Blends of ABS and styrene–butadiene–styrene (SBS) were obtained by extrusion from different types of ABS with different SBS contents. The results showed that morphology and mechanical behavior of ABS/SBS blends depend strongly on the composition and characteristics of ABS matrix. An increase in elongation at break and slight decrease in modulus could be observed by increasing SBS content. ABS/SBS blend possessing good dispersion of rubber particles with sizes ranging from 0.1 to 0.8 μm of rubber particles exhibited the better performance of the impact resistance, whereas blends showing a predominance of relatively large particles resulted on poorer mechanical properties. These results suggest that viscosity and composition of ABS matrix play a significant role on the dispersion and coalescence of the dispersed phase during mixing. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47075.

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Improvement of compressible regular solution model using Sanchez-Lacombe equation of state for phase behavior prediction of polymer blends

Khoubi-Arani

2023

Polym. Bull.

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Quantifying the synergistic effect of dispersion state and interfacial adhesion contributions on impact strength of core shell rubber-toughened glassy polymers

Abstract: Synergistically improved impact strength of a core shell rubber-toughened glassy polymer was rationalized with disparities ratio of |ΔT/ΔD|.

Cited by 5 publications

References 31 publications

Heterogeneity Assisted Damping Enhancement of Low and High Frequency Mechanical Waves in a Soft Polymer Nanocomposite

Heterogeneity Assisted Damping Enhancement of Low and High Frequency Mechanical Waves in a Soft Polymer Nanocomposite

The influence of viscosity and composition of ABS on the ABS/SBS blend morphology and properties

Improvement of compressible regular solution model using Sanchez-Lacombe equation of state for phase behavior prediction of polymer blends

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