Low-density polyethylene in mixtures of hexane and benzene derivates

Randová, Alena; Bartovská, Lidmila; Hovorka, Štěpán; Izák, Pavel; Poloncarzová, Magda; Bartovský, Tomáš

doi:10.2478/s11696-010-0038-2

Cited by 9 publications

(3 citation statements)

References 29 publications

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“…Polymers have a wide range of engineering applications because of their acceptable mechanical, chemical and physical properties (Randová et al, 2010). The HDPE was used in many industrial applications such as electrical, plumbing boxes, vehicle fuel tank, food storage containers, hydraulic applications, heat transfer piping systems, 3 D printer filament and domestic water supply.…”

Section: Introductionmentioning

confidence: 99%

Friction spot lap joining of the anodized aluminium alloy 6061 with high-density polyethylene sheets

Ali

Hussein

2019

WJE

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Purpose The purpose of this paper is to join an anodized aluminium alloy AA6061 sheet with high-density polyethylene (HDPE) using friction spot process. Design/methodology/approach The surface of AA6061 sheet was anodized to increase the pores’ size. A lap joint configuration was used to join the AA6061 with HDPE sheets by the friction spot process. The joining process was carried out using a rotating tool of different diameters: 14, 16 and 18 mm. Three tool-plunging depths were used – 0.1, 0.2 and 0.3 mm – with three values of the processing time – 20, 30 and 40 s. The joining process parameters were designed according to the Taguchi approach. Two sets of samples were joined: the as-received AA6061/HDPE and the anodized AA6061/HDPE. Findings Frictional heat melted the HDPE layers near the lap joint line and penetrated it through the surface pores of the AA6061 sheet via the applied pressure of the tool. The tool diameter exhibited higher effect on the joint strength than processing time and the tool-plunging depth. Specimens of highest and lowest tensile force were failed by necking the polymer side and shearing the polymer layers at the lap joint, respectively. Molten HDPE was mechanically interlocked into the pores of the anodized surface of AA6061 with an interface line of 18-m width. Originality/value For the first time, HDPE was joined with the anodized AA6061 by the friction spot process. The joint strength reached an ideal efficiency of 100 per cent.

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Section: Introductionmentioning

confidence: 99%

Friction spot lap joining of the anodized aluminium alloy 6061 with high-density polyethylene sheets

Ali

Hussein

2019

WJE

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“…For validation of model, the sorption of organic liquids including water, linear alcohols, linear alkanes, derivates of cyclohexane, aromates, 1-chlorohexane, chlorobenzene, benzoyl chloride, and nitrobenzene into the low density polyethylene (LDPE) membrane has been considered as it is of much interest and has been continuously investigated in literatures. [21][22][23][24][25][26] UNIFIED SORPTION MODEL…”

Section: Introductionmentioning

confidence: 99%

Development and validation of a graphical sorption model: application to sorption of organic liquids into low density polyethylene polymeric membrane

Khansary

Marjani

Shirazian

2017

Asia-Pacific J Chem Eng

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In this work, a model has been developed for the sorption process of pure liquids and liquid mixtures into polymeric membrane. The model is presented in terms of Gauss hypergeometric function and can be simply applied for system of interest using graphical form and step-by-step application procedure illustrated. The model includes both sorption and desorption mechanisms in equations, and consequently reaction orders and rate constants can be determined. Collected experimental data of the equilibrium sorption of various liquids including water, linear alcohols, linear alkanes, derivates of cyclohexane, aromates, 1-chlorohexane, chlorobenzene, benzoyl chloride, and nitrobenzene into the low density polyethylene membrane at three temperatures (288.15, 298.15, and 308.15 K) were used for validation of model calculations and assessment of model reliability. Simply, the introduced apparent reaction order and reaction rate constant can be calculated, based on which one might readily access to the sorption and desorption individual reaction orders. The computational cost of proposed method is small, and much of calculations can be done following procedure provided in the form of graphical diagrams. The reliability of method was successfully examined and revealed potential for further uses.

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“…One type of chemical engineering process, where mixed solvents have found broad use is separation of components from mixtures. Our research is focused on membrane separation processes and, as a further challenge, on the separation of single enantiomers from their racemic mixtures. The preparation of single enantiomers is important in the pharmaceutical industry and in pharmacology because two enantiomers may exhibit completely different biological or pharmacological activities, pharmacokinetic profiles or effectiveness, or they may exhibit different potency, as the interacting molecules in biological systems are also chiral .…”

Section: Introductionmentioning

confidence: 99%

Describing the sorption characteristics of a ternary system of benzene (1) and alcohol (2) in a nonporous polymer membrane (3) by theFlory–Huggins model

Hovorka

Randová

Sysel

et al. 2014

Polymer Engineering & Sci

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The Flory-Huggins equation was used to describe results of total and preferential sorption measurements for the binary liquid mixture of benzene (1) and alcohol (2) in one of two nonporous polymer membranes (3), low-density polyethylene (LDPE) and Nafion membrane. The concentration dependence of binary and ternary interaction parameters was determined. The interaction parameters for the benzene -methanol binary mixture were obtained from binary vapor-liquid equilibrium data in the literature to decrease the number of adjusted parameters. The results show that use of a ternary interaction parameter is necessary. Data treatment was performed assuming either no crystallinity or an average crystallinity typical for the studied membranes. Subsequently, the limiting activity coefficients of solutes in LDPE were calculated from the values of the interaction parameters and their values compared to values of the limiting activity coefficients of benzene and methanol in hypothetical liquid alkane with the same density as LDPE obtained by the UNIFAC method. POLYM. ENG. SCI., 55:1187-1195

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Low-density polyethylene in mixtures of hexane and benzene derivates

Cited by 9 publications

References 29 publications

Friction spot lap joining of the anodized aluminium alloy 6061 with high-density polyethylene sheets

Friction spot lap joining of the anodized aluminium alloy 6061 with high-density polyethylene sheets

Development and validation of a graphical sorption model: application to sorption of organic liquids into low density polyethylene polymeric membrane

Describing the sorption characteristics of a ternary system of benzene (1) and alcohol (2) in a nonporous polymer membrane (3) by theFlory–Huggins model

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