Effect of Nano Calcium Carbonate and Montmorillonite on Properties of Styrene–Butadiene–Styrene Copolymer Modified Asphalt

Han, Na; Zhou, De Jie; Tang, Xin

doi:10.4028/www.scientific.net/amm.99-100.1035

Cited by 18 publications

(2 citation statements)

References 14 publications

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“…Nano CaCO 3 is also suitable filler from environmental point of view, as it is less polluting, low in toxicity and white in color [6]. Outstanding improvement in the resulting properties of rubber nanocomposites by the addition of nano CaCO 3 [1][2][3][4][5][6][7][8] have strong promises to prepare commercially important rubber compounds.…”

Section: Introductionmentioning

confidence: 98%

Effect of sol–gel modified nano calcium carbonate (CaCO3) on the cure, mechanical and thermal properties of acrylonitrile butadiene rubber (NBR) nanocomposites

Roy

Alam

Mandal

et al. 2014

J Sol-Gel Sci Technol

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The main goal of this work is to modify surface of nano CaCO 3 with silica by an elegant approach of solgel method and also to compare the influence of sol-gel modified nano CaCO 3 with unmodified nano CaCO 3 in the cure, mechanical and thermal properties of acrylonitrile butadiene rubber (NBR) nanocomposites. The surface modification of nano CaCO 3 is characterized by Fourier transform infrared spectra and Field emission scanning electron microscopy. The modified nano CaCO 3 causes significant improvement in the maximum rheometric torque (R ? ) and cure rate index value of NBR nanocomposites in comparison to unmodified nano CaCO 3 . More importantly, incorporation of surface modified nano CaCO 3 provides substantial enhancement in the mechanical properties of NBR nanocomposites and at 4 phr (parts per hundred parts of rubber) filler loading level tensile strength of modified nano CaCO 3 filled NBR vulcanizate shows a large increment by 37.33 % compare to that of unmodified nano CaCO 3 filled NBR vulcanizate. Thermogravimetric analysis reveals that sol-gel modified nano CaCO 3 delivers greater thermal stability in NBR nanocomposites than unmodified nano CaCO 3 . The fantastic enrichment in the cure, mechanical and thermal properties of NBR nanocomposites containing surface modified nano CaCO 3 will be the part of great interest for rubber researcher regarding the broad application of sol-gel modified nano CaCO 3 as important filler in rubber industry.

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Section: Introductionmentioning

confidence: 98%

Effect of sol–gel modified nano calcium carbonate (CaCO3) on the cure, mechanical and thermal properties of acrylonitrile butadiene rubber (NBR) nanocomposites

Roy

Alam

Mandal

et al. 2014

J Sol-Gel Sci Technol

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show abstract

“…The effect of nano silica to reduce the calcium leaching and refinement in pore structure of cement paste has been studied [21]. The addition of nano silica improved the performance of cementitious system by controlling the C-S-H degradation under aggressive condition of calcium leaching process.…”

Section: Introductionmentioning

confidence: 99%

Comparison of High Performance Fly Ash Concrete Using Nano Silica Fume on Different Mixes

Sankaranarayannan¹,

Jagadesan²

2016

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This paper investigates the experimental results on the effect of nano silica fume on compressive strength development of concretes containing high volume fly ash (HVFA). The effect of various silica fumes contents such as 1%, 2% & 3% (wt. %) as partial replacement of cement on the compressive strength of cements is evaluated in the first part. The nano silica fume content which exhibits the highest compressive strength above is used in high volume fly ash concretes containing 30% and 50% class F fly ash. The results show that among three different silica fumes contents, the addition of 1% increases the compressive strength of concretes. The addition of 1% silica fume also increases the early age and 28 days compressive strengths of HVFA concretes.

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Insight into the diffusion behaviors of SBS‐compatibilizer‐coupled modified asphalt: Molecular dynamics simulation and experimental validation

Dong,

Lu,

et al. 2024

Vinyl Additive Technology

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Compatibilizers play a crucial role in enhancing the compatibility between styrene–butadiene–styrene (SBS) polymer and asphalt, and the coupling of compatibilizers with SBS affects the motion behavior of asphalt molecules, which influences the performance of SBS modified asphalt. In this investigation, molecular dynamics simulation is employed to evaluate the impact of SBS coupling with compatibilizers on alterations in the self‐motion behavior of asphalt molecules, changes in relative free volume, and modifications in system energy. The findings reveal that with the introduction of a compatibilizer, the combined effect of the compatibilizer and SBS coupling amplifies the mobility of the constituents within the modified asphalt. This amplification manifests as increased relative free volume within the system, heightened activation of modified asphalt molecules, and a simultaneous reduction in the interaction energy among these molecules. Following that, the high‐temperature rheological properties of SBS modified asphalt were verified with the simulation results, coupled with temperature scanning experiments. This study describes the intrinsic mechanism of interaction of compatibilizers in SBS modified asphalt at the molecular scale.Highlights Molecular dynamics simulations and experimental validation were implemented for styrene–butadiene–styrene (SBS)‐modified asphalt. Compatibilizers can activate the activity of SBS modified asphalt. Compatibilizers allow a better release of the properties of the bitumen and SBS. Compatibilizers can replace bitumen and act with SBS to improve its modification efficiency. The optimum dosage of compatibilizer is 3%.

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Effect of Nano Calcium Carbonate and Montmorillonite on Properties of Styrene–Butadiene–Styrene Copolymer Modified Asphalt

Cited by 18 publications

References 14 publications

Effect of sol–gel modified nano calcium carbonate (CaCO3) on the cure, mechanical and thermal properties of acrylonitrile butadiene rubber (NBR) nanocomposites

Effect of sol–gel modified nano calcium carbonate (CaCO3) on the cure, mechanical and thermal properties of acrylonitrile butadiene rubber (NBR) nanocomposites

Comparison of High Performance Fly Ash Concrete Using Nano Silica Fume on Different Mixes

Insight into the diffusion behaviors of SBS‐compatibilizer‐coupled modified asphalt: Molecular dynamics simulation and experimental validation

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