Diffusion of mineral oil in styrene‐butadiene polymer films

Fouchet, Bernard

doi:10.1002/app.29265

Cited by 9 publications

(10 citation statements)

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“…Some rubber materials such as polybutadiene (PB), butyl rubber (BR), styrene−butadiene rubber (SBR), and ethylene propylene diene monomer (EPDM), were also suggested after modification via grafting and cross‐linking to achieve suitable network structures for oil absorption. Nevertheless, the solution cross‐linking was barely controlled beside the need for extensive solvent extraction to eliminate the soluble fractions.…”

Section: Introductionmentioning

confidence: 99%

Novel interpenetrating amphiphilic Co‐networks based on compatibilized NBR/SBR‐montmorillonite composites: A study on the oil absorption characteristics

2014

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This work explores the fabrication of novel amphiphilic interpenetrating co‐network structures that may afford a reasonable solution to the problem of oil spills. It depends upon compatibilization of the binary immiscible rubber blend, containing the polar acrylonitrile–butadiene rubber and the non‐polar styrene–butadiene rubber. The compatibilization process was accomplished successfully using organic‐inorganic hybrid structures based on montmorillonites, priory treated with a hydrophobic cationic agent to different levels so that they acquire wide range of amphiphilicity. With achieving the goal of compatibilization using bi‐polar montmorillonites, the formed amphiphilic interpenetrating network structures are thought to qualify as oil absorbent materials for oils exhibiting a broad spectrum of hydrophilicity/hydrophobicity. For this purpose, toluene, which exhibits both polar and non‐polar characters, was chosen as model to predict the oil absorption and swelling extent as a function of the clay philicity. The capacity of oil uptake showed good correlation to the cross‐linking density. The combination of both polar and non‐polar moieties in polymer structures used as oil absorptive materials provides a good tool to control the properties of the resulting materials supposing that the polarity and/or content of the inserted clay are the key variables: toughness offers buoyancy, stability, and easy recovery of absorbed oils irrespective of their polarity. Furthermore, the recovered oil‐swelled materials are suitable for regular oil‐refining processes (economic, no waste, green approach). The developed materials in this work are additionally advantageous because of cost‐effective concerns with respect to other developed materials in recent years in particular in the presence of the clay as one of the main constituents of these structures. This approach can reduce the environmental impacts from oil spills and help recover one of most precious natural resources. POLYM. COMPOS., 36:1494–1501, 2015. © 2014 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Novel interpenetrating amphiphilic Co‐networks based on compatibilized NBR/SBR‐montmorillonite composites: A study on the oil absorption characteristics

2014

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“…Diffusion coefficients used in this law describe the rate of solvent diffusion into the polymer film. Fouchet et al reported a mineral oil diffusion coefficient of 5.53× 10 -14 m 2 /s at room temperature [16]. Richard et al reported a water diffusion coefficient of 10 -8 m 2 /s [17].…”

Section: Figure5: Loss Factor Curves For Pure Sbr Latex Immersed In mentioning

confidence: 99%

DMTA investigation of solvents effects on viscoelastic properties of porous CaCO3-SBR latex composites

Touaiti

Alam

Toivakka

et al. 2012

Mechanics of Materials

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The impact of water, linseed oil and mineral oil solvents on the viscoelastic properties of calcium carbonate -caboxylated styrene buradiene (CaCO 3 -SBR) porous coatings has been investigated using a dynamic mechanical thermal analysis (DMTA) technique in single cantilever mode from -30°C to 70°C. Water and oils reduce the glass transition temperature (Tan Delta peak) of pure latex. Oils increase the rubbery storage modulus which may be due to oxidation leading to entangled chains that contribute to resistance to deformation. Scanning electron microscopy (SEM) was used to visualise the porous structure of these composites. Further analysis using Image J software showed that increasing the latex content results in the development of small circular (2D) pores. The effect of solvents on the elastic response of coating depends on the chemical nature of the solvent and its molecular size. Linseed oil and water decreased the composite's storage modulus for 5 pph, 10 pph and 15 pph coatings, in contrast to mineral oil which had a negative impact at relatively higher latex content (50 pph). The drop in the strength and storage modulus of solvent saturated latex coatings is proportional to the solvent surface tension to viscosity ratio. The low values of storage modulus were interpreted as low adhesion between CaCO 3 particles and the styrenebutadiene matrix. For low latex content coatings, low storage modulus is due to porosity which forms suitable sites for cracks initiation and propagation through the coatings. At higher latex volume fraction coatings the composite behaviour approaches that of pure latex.

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“…The values obtained were 1.06x10 _12 m 2 x s _1 and 8.76x10 _12 m 2 x s _1 , respectively at 20°C and 50°C. There is a large variation of values reported on the literature regarding diffusion coefficients of oils diffusing into several different media [17][18][19]. This behavior can be directly attributed to the different interaction of oils and polymers, depending on the solubility parameter and on the polymer structure [19].…”

Section: Introductionmentioning

confidence: 99%

“…There is a large variation of values reported on the literature regarding diffusion coefficients of oils diffusing into several different media [17][18][19]. This behavior can be directly attributed to the different interaction of oils and polymers, depending on the solubility parameter and on the polymer structure [19]. The values obtained here seem to indicate a fairly high diffusion coefficient, which could be related to the similarities already observed by the FT-IR analysis of the chemical structure of HDPE and diesel oil.…”

Section: Introductionmentioning

confidence: 99%