The use of polymers for water storage or distribution is closely monitored, especially with regard to the possible contamination with substances coming from the material's surfaces. Different standards are practiced across countries according to type of applied materials and such test methods are prevalently based on constant temperature conditions. However, these polymers systems could be located in diverse environment which does not necessarily provide constant conditions. Experimental findings show that exposure of liquid inside polymeric materials to specific temperature gradients, and consequently to emerging organized flows, can result in an accelerated leaching of undesirable substances from the solid surface. In presented work model steady-state and organized flow conditions are used to compare release of contaminates from polyethylene by measuring of surface tension, UV-Vis spectroscopy, FTIR, scanning electron microscopy and elemental analysis of polymer surfaces and water leachates. The pilot study shows that convective flow generated via temperature gradient significantly affects contaminant release in comparison to a steady state and mixing flow conditions.

Centre of Polymer Systems Tomas Bata University in Zlín Třída Tomáše Bati 5678 76001 Zlín Czech Republic

Department of Biomaterials Faculty of Engineering Science University Bayreuth Prof Rüdiger Bormann Str 1 95447 Bayreuth Germany

Department of Physics and Materials Engineering Faculty of Technology Tomas Bata University in Zlín Vavrečkova 5669 760 01 Zlín Czech Republic

Department of Polymer Engineering Faculty of Technology Tomas Bata University in Zlín Vavrečkova 5669 Zlín 760 01 Czech Republic

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Akiyama M., Hwang G.J., Cheng K.C. Experiments on the onset of longitudinal vortices in laminar forced convection between horizontal plates. J. Heat. Transfer. 1971;93:335–341. doi: 10.1115/1.3449828. DOI

Aydin, M., Sisman, A., Gültekin, A., Dehghan B.B., 2015. An experimental performance comparison between different shallow ground heat exchangers.

Begley, T.H., Brandsch, J., Limm, W., Siebert, H., Piringer, O., 2008. Diffusion behaviour of additives in polypropylene in correlation with polymer properties 25, 1409–1415. 10.1080/02652030802162747. PubMed DOI

Benedict R.P. Wiley; 1980. Fundamentals of Pipe Flow, A Wiley - Interscience publication.

Bertoldo M., Ciardelli F. Water extraction and degradation of a sterically hindered phenolic antioxidant in polypropylene films. Polymer. (Guildf) 2004;45:8751–8759. doi: 10.1016/j.polymer.2004.10.044. DOI

Brocca D., Arvin E., Mosbæk H. Identification of organic compounds migrating from polyethylene pipelines into drinking water. Water. Res. 2002;36:3675–3680. doi: 10.1016/S0043-1354(02)00084-2. PubMed DOI

Butuc G., Spijkerman G., Hofstee S.te, Kampen T. Handbook of Industrial Polyethylene and Technology: Definitive Guide to Manufacturing, Properties, Processing, Applications and Markets. 2017. Antistatic Additives for Polyethylene; pp. 853–864.

Cebeci T., Cousteix J. Horizons Pub; 2005. Modeling and Computation of Boundary-Layer Flows: Laminar, Turbulent and Transitional Boundary Layers in Incompressible and Compressible Flows.

Colinet, P., Legros, J., Velarde, M., 2005. Nonlinear dynamics of surface-tension-driven instabilities 505–512. 10.1002/3527603115.index. DOI

Craun G.F., Calderon R.L. Waterborne disease outbreaks caused by distribution system deficiencies. J. Am. Water. Works. Assoc. 2001;93:64–75. doi: 10.1002/j.1551-8833.2001.tb09287.x. DOI

Denberg M., Arvin E., Hassager O. Modelling of the release of organic compounds from polyethylene pipes to water. J. Water Supply Res. Technol. Aqua. 2007;56:435–443. doi: 10.2166/aqua.2007.020. DOI

Diera T., Thomsen A.H., Tisler S., Karlby L.T., Christensen P., Rosshaug P.S., Albrechtsen H.-J., Christensen J.H. A non-target screening study of high-density polyethylene pipes revealed rubber compounds as main contaminant in a drinking water distribution system. Water. Res. 2023;229 doi: 10.1016/j.watres.2022.119480. PubMed DOI

du Puits R., Willert C. The evolution of the boundary layer in turbulent Rayleigh-Bénard convection in air. Phys. Fluids. 2016;28 doi: 10.1063/1.4947261. DOI

European Comission, 2018. Commission regulation (EU) 2018/848 on organic production and labelling of organic products and repealing council regulation (EC) No 834/2007.

European Committee for Standardization, 2016. Influence of organic materials on water intended for human consumption - determination of odour and flavour assessment of water in Piping.

European Committee for Standardization, 2014. Influence of materials on water intended for human consumption. Influence due to migration. Test method for factory-made products made from or incorporating organic or glassy (porcelain/vitreous) enamel materials.

Gao H., Shi H., Dai Q., Li A., Yang L., Sun Y., Jin S., Xia L. Glycerin monostearate aggravates male reproductive toxicity caused by Di(2-ethylhexyl) phthalate in rats. Curr. Med. Sci. 2019;39:1003–1008. doi: 10.1007/s11596-019-2135-y. PubMed DOI

Incropera F.P. John Wiley & Sons, Inc.; Hoboken, NJ, USA: 2006. Fundamentals of Heat and Mass Transfer.

Kalweit C., Stottmeister E., Rapp T. Contaminants migrating from crossed-linked polyethylene pipes and their effect on drinking water odour. Water. Res. 2019;161:341–353. doi: 10.1016/j.watres.2019.06.001. PubMed DOI

Kirk S., Strobel M., Lyons C.S., Janis S. A statistical comparison of contact angle measurement methods. J. Adhes. Sci. Technol. 2019;33:1758–1769. doi: 10.1080/01694243.2019.1611400. DOI

Kowalska B., Kowalski D., Rożej A. Organic compounds migrating from plastic pipes into water. J. Water Supply Res. Technol. Aqua. 2011;60:137–146. doi: 10.2166/aqua.2011.004. DOI

L. Rayleigh O.M.F.R.S. LIX. On convection currents in a horizontal layer of fluid, when the higher temperature is on the under side. The London, Edinburgh, and Dublin Philosophical Magazine and. J. Sci. 1916;32:529–546. doi: 10.1080/14786441608635602. DOI

Lam T.W.L., Ho H.T., Ma A.T.H., Fok L. Microplastic contamination of surface water-sourced tap water in Hong Kong—A preliminary study. Appl. Sci. 2020;10 doi: 10.3390/app10103463. DOI

Limm W., Hollifield H.C. Effects of temperature and mixing on polymer adjuvant migration to corn oil and water. Food Addit. Contam. 1995;12:609–624. doi: 10.1080/02652039509374349. PubMed DOI

Lithner D., Nordensvan I., Dave G. Comparative acute toxicity of leachates from plastic products made of polypropylene, polyethylene, PVC, acrylonitrile–butadiene–styrene, and epoxy to Daphnia magna. Environ. Sci. Pollut. Res. 2012;19:1763–1772. doi: 10.1007/s11356-011-0663-5. PubMed DOI

Loupis, M., Papanikolaou, N.P., Maliaris, G., Kyritsis, A., Nikolaidis, V., 2014. Combination of building applied PV panels with thermoelectric generation and geothermal cooling. 10.13140/2.1.2754.3844. DOI

Massey S., Adnot A., Rjeb A., Roy D. Action of water in the degradation of low-density polyethylene studied by X-ray photoelectron spectroscopy. Express. Polym. Lett. 2007;1:506–511. doi: 10.3144/expresspolymlett.2007.72. DOI

Minarik A., Rafajová M., Rajnohová E., Smolka P., Mrácek A. Self-organised patterns in polymeric films solidified from diluted solutions – The effect of the substrate surface properties. Int. J. Heat. Mass Transf. 2014;78:615–623. doi: 10.1016/j.ijheatmasstransfer.2014.07.032. DOI

Minařík A., Smolka P., Lapčík L. Preliminary investigation of factors determining self-organised structures preparation in polymer layers. Int. J. Heat. Mass Transf. 2011;54:4135–4142. doi: 10.1016/j.ijheatmasstransfer.2011.03.025. DOI

Minařík A., Smolka P., Minařík M., Mráček A., Rajnohová E., Minaříková M., Gřundělová L., Foglarová M., Velebný V. A special instrument for the defined modification of polymer properties in solutions and polymer layers. Measurement. (Lond) 2017;97:218–225. doi: 10.1016/j.measurement.2016.11.006. DOI

Muhammad Ishaque M.M., Alsuhaimi A., Hanafiah M., Ashraf M., Harun S.N. Study on migration of phenolic and volatile organic compounds from plastic pipes used in plumbing home networks into tap water. Desalination Water Treat. 2018;112:344–350. doi: 10.5004/dwt.2018.22341. DOI

Ng W.S., Lee C.S., Cheng S.-F., Chuah C.H., Wong S.F. Biocompatible Polyurethane Scaffolds Prepared from Glycerol Monostearate-Derived Polyester Polyol. J. Polym. Environ. 2018;26:2881–2900. doi: 10.1007/s10924-017-1175-2. DOI

Oleinik, O.A., Samokhin, V.N., 1999. Mathematical models in boundary layer theory.

Pellew A., Southwell R.V. On maintained convective motion in a fluid heated from below. Proc. R. Soc. Lond. a Math. Phys. Sci. 1940;176:312–343.

Piergiovanni L., Limbo S. In: Food Packaging Materials. Piergiovanni L., Limbo S., editors. Springer International Publishing; Cham: 2016. Plastic Packaging Materials; pp. 33–49. DOI

Schlichting H., Gersten K. Fundamentals of Boundary–Layer Theory. Boundary-Layer Theory. 2017:29–49. doi: 10.1007/978-3-662-52919-5_2. DOI

Singh R.K., Sharma R.V. Numerical analysis for ground temperature variation. Geothermal Energy. 2017;5 doi: 10.1186/s40517-017-0082-z. DOI

Skjevrak I., Due A., Gjerstad K.O., Herikstad H. Volatile organic components migrating from plastic pipes (HDPE, PEX and PVC) into drinking water. Water. Res. 2003;37:1912–1920. doi: 10.1016/S0043-1354(02)00576-6. PubMed DOI

Volmar U.E., Müller H.W. Quasiperiodic patterns in Rayleigh-Bénard convection under gravity modulation. Phys. Rev. E. 1997;56:5423–5430. doi: 10.1103/PhysRevE.56.5423. DOI

Wan T., Saito S. Flow-Accelerated Corrosion of Type 316L Stainless Steel Caused by Turbulent Lead–Bismuth Eutectic Flow. Metals. (Basel) 2018;8 doi: 10.3390/met8080627. DOI

Wang Q., Wan Z.-H., Yan R., Sun D.-J. Multiple states and heat transfer in two-dimensional tilted convection with large aspect ratios. Phys. Rev. Fluids. 2018;3 doi: 10.1103/PhysRevFluids.3.113503. DOI

Xia L., Yang M., He M., Jiang M., Qin C., Wei Z., Gao H. Food emulsifier glycerin monostearate aggravates phthalates’ testicular toxicity by disrupting tight junctions’ barrier function in rats. Food Quality and Safety. 2021;5:fyab002. doi: 10.1093/fqsafe/fyab002. DOI

Zhang L., Liu S., Liu W. Investigation of organic matter migrating from polymeric pipes into drinking water under different flow manners. Environ. Sci.: Processes Impacts. 2014;16:280–290. doi: 10.1039/C3EM00432E. PubMed DOI

Zimmermann L., Bartosova Z., Braun K., Oehlmann J., Völker C., Wagner M. Plastic products leach chemicals that induce in vitro toxicity under realistic use conditions. Environ. Sci. Technol. 2021;55:11814–11823. doi: 10.1021/acs.est.1c01103. PubMed DOI PMC