ORALS

SESSION: CoatingsTuePM2-R7	7th Intl. Symp. on Sustainable Surface & Interface Engineering: Coatings for Extreme Environments
Tue. 29 Nov. 2022 / Room: Andaman 2
Session Chairs: Maude Mermillion-Jimenez; Session Monitor: TBA

15:55: [CoatingsTuePM209] OS Invited
High performance fire protective thin coatings for plastics
Maude Mermillion Jimenez¹ ; ¹Univ. Lille, CNRS, INRAE, Centrale Lille, UMR 8207 - UMET - Unité Matériaux et Transformations, F-59000 Lille, France, Villeneuve d'Ascq cedex, France;
Paper Id: 193 [Abstract]

The use of coating, or in a more general way surface treatment, is one of the most efficient ways to protect materials against fire. It has several advantages: it does not modify the mechanical properties of the substrates, it is easily processed and it can be used onto diverse materials such as metallic materials[1], polymers[2], foams[3] and textiles [4]. Moreover, while ignition occurs usually at the surface of a material, it is important to concentrate the protective action at this location. It is the goal of this talk to present recent approaches to make fire protective coatings for different types of plastic based substrates. When evaluating the fire behavior of materials, the reaction to fire (contribution of the material to fire growth) and the resistance to fire (defined as the ability of materials to resist the passage of fire and/or gaseous products of combustion) have to be distinguished. It means that different scenarios should be considered and hence, different thermal constraints are applied on the protective coatings. According to the fire scenario, the flame retardant coating must be designed with the appropriate chemical composition, thickness, thermophysical and thermo-optical properties. A well-known example of protective coating is intumescent coating. When heated beyond a critical temperature, the intumescent material begins to swell and then to expand, forming an insulative coating limiting heat and mass transfers. Intumescence is a versatile method for providing both reaction and resistance to fire to materials. Intumescent coatings can be for example applied on carbon fiber reinforced polymers used in aircraft structure for fire protection (i.e. resistance to fire) [5]. Thin intumescent coatings can also be applied on thermoplastics in a cone calorimeter scenario (i.e. reaction to fire). It provides outstanding performance on various polymers, such as polypropylene and polycarbonate [6]. Other technologies than intumescence allow designing FR coatings including laber by layer (LbL)[7,8], sol-gel[9], plasma deposit [10,11], and more recently self-stratifying coatings [12,13] and radiative fire protective coatings [14]. All those methods will be considered in the talk, and the benefit and drawback of these methodologies will be discussed.

References:
1. Yasir, M.; Ahmad, F.; Yusoff, P. S. M. M.; Ullah, S.; Jimenez, M., Latest trends for structural steel protection by using intumescent fire protective coatings: a review. Surface Engineering 2020, 36 (4), 334-363.
2. Jimenez, M.; Gallou, H.; Duquesne, S.; Jama, C.; Bourbigot, S.; Couillens, X.; Speroni, F., New routes to flame retard polyamide 6,6 for electrical applications. Journal of Fire Sciences 2012, 30 (6), 535-551.
3. Bellayer, S.; Jimenez, M.; Barrau, S.; Bourbigot, S., Fire retardant sol-gel coatings for flexible polyurethane foams. RSC Adv. 2016, 6 (34), 28543-28554.
4. Jimenez, M.; Guin, T.; Bellayer, S.; Dupretz, R.; Bourbigot, S.; Grunlan, J. C., Microintumescent mechanism of flame-retardant water-based chitosan-ammonium polyphosphate multilayer nanocoating on cotton fabric. J. Appl. Polym. Sci. 2016, 133 (32).
5. Bourbigot, S.; Gardelle, B.; Jimenez, M.; Duquesne, S.; Rerat, V. In Silicone-based coatings for reaction and resistance to fire of polymeric materials, 22nd Annual Conference on Recent Advances in Flame Retardancy of Polymeric Materials 2011, Stamford, CT, Stamford, CT, 2011; pp 243-251.
6. Jimenez, M.; Duquesne, S.; Bourbigot, S., Fire protection of polypropylene and polycarbonate by intumescent coatings. Polymers for Advanced Technologies 2012, 23 (1), 130-135.
7. Lazar, S.; Carosio, F.; Davesne, A. L.; Jimenez, M.; Bourbigot, S.; Grunlan, J., Extreme Heat Shielding of Clay/Chitosan Nanobrick Wall on Flexible Foam. ACS Applied Materials and Interfaces 2018, 10 (37), 31686-31696.
8. Davesne, A. L.; Lazar, S.; Bellayer, S.; Qin, S.; Grunlan, J. C.; Bourbigot, S.; Jimenez, M., Hexagonal Boron Nitride Platelet-Based Nanocoating for Fire Protection. ACS Applied Nano Materials 2019, 2 (9), 5450-5459.
9. Bellayer, S.; Jimenez, M.; Barrau, S.; Marin, A.; Sarrazin, J.; Bourbigot, S., Formulation of eco-friendly sol-gel coatings to flame-retard flexible polyurethane foam. Green Materials 2019, 8 (3), 139-149.
10. Bardon, J.; Apaydin, K.; Laachachi, A.; Jimenez, M.; Fouquet, T.; Hilt, F.; Bourbigot, S.; Ruch, D., Characterization of a plasma polymer coating from an organophosphorus silane deposited at atmospheric pressure for fire-retardant purposes. Progress in Organic Coatings 2015, 88, 39-47.
11. Jimenez, M.; Lesaffre, N.; Bellayer, S.; Dupretz, R.; Vandenbossche, M.; Duquesne, S.; Bourbigot, S., Novel flame retardant flexible polyurethane foam: Plasma induced graft-polymerization of phosphonates. RSC Adv. 2015, 5 (78), 63853-63865.
12. Beaugendre, A.; Lemesle, C.; Bellayer, S.; Degoutin, S.; Duquesne, S.; Casetta, M.; Pierlot, C.; Jaime, F.; Kim, T.; Jimenez, M., Flame retardant and weathering resistant self-layering epoxy-silicone coatings for plastics. Progress in Organic Coatings 2019.
13. Lemesle, C.; Bellayer, S.; Duquesne, S.; Schuller, A. S.; Thomas, L.; Casetta, M.; Jimenez, M., Self-stratified bio-based coatings: Formulation and elucidation of critical parameters governing stratification. Applied Surface Science 2021, 536.
14. Davesne, A. L. B., T.; Sarazin, J.; Bellayer, S.; Parent, F.; Samyn, F.; Jimenez, M.; Sanchette, F.; Bourbigot, S., Low emissivity metal/dielectric coatings as radiative barriers for the fire protection of raw and formulated polymers. ACS Applied Polymer Materials 2021, In press.

SESSION: CoatingsTuePM2-R7	7th Intl. Symp. on Sustainable Surface & Interface Engineering: Coatings for Extreme Environments
Tue. 29 Nov. 2022 / Room: Andaman 2
Session Chairs: Maude Mermillion-Jimenez; Session Monitor: TBA

16:20: [CoatingsTuePM210] OS
DESIGN OF BIOMIMETIC COATINGS TO MITIGATE DAIRY FOULING
Manon Saget¹ ; Sawsen Zouaghi² ; Luisa Azevedo Scudeller³ ; Flavie Braud⁴ ; Guillaume Delaplace³ ; Vincent Thomy⁴ ; Yannick Coffinier⁴ ; Maude Mermillion Jimenez⁵ ; ¹UMET, Villeneuve d\'Ascq, France; ²UMET laboratory, Villeneuve d'Ascq, France; ³UMET, Villeneuve d'Ascq, France; ⁴IEMN, Villeneuve d'Ascq, France; ⁵Univ. Lille, CNRS, INRAE, Centrale Lille, UMR 8207 - UMET - Unité Matériaux et Transformations, F-59000 Lille, France, Villeneuve d'Ascq cedex, France;
Paper Id: 204 [Abstract]

In food processing industries, products and especially dairy products undergo thermal treatments (pasteurization, sterilization) leading to fouling formation on heat exchangers’ surfaces. These deposits can contaminate dairy products during pasteurization process and also impair heat transfer mechanism by creating a thermal resistance, thus leading to regular shut down of the processes. Therefore, periodic and drastic cleaning-in-place (CIP) procedures are implemented. These CIP involve the use of chemicals and high amount of water, thus increasing environmental burden. It has been estimated that 80% of production costs are owed to dairy fouling deposit. [1] <br />To reduce dairy fouling, two pathways have been considered: (i) Process conditions optimization, mainly tested by food-processing industries and (ii) Stainless steel surface anti-fouling or fouling-release coating to either inhibit attachment of depositing species or to ease their removal during cleaning respectively. <br />In our team, we focus on this latter approach by developing biomimetic coatings (slippery liquid-infused surfaces (SLIS) [2] and atmospheric plasma nano-structured coatings [3]) of low contact angle hysteresis to limit fouling adhesion onto stainless steel surfaces. Slippery liquid-infused surfaces are inspired by Nepenthes plant by designing slippery interface between the substrate and the fouling providing fouling-release surfaces. Slippery surfaces were elaborated in three steps: (i) femto laser surface structuring, (ii) silanization and (iii) lubricant impregnation. In order to maximize lubricant retention, laser manufacturing parameters were optimized. <br />Plasma nano-structured coatings intend to mimic lotus leave surfaces, by creating a dual-scale roughness preventing adhesion of denatured dairy proteins. Hydrophobic silane-based coatings were sprayed by atmospheric pressure plasma (ULS, Axcys Technologies) and conditions were optimized depending on the fouling test results obtained.

References:
[1] A. J. van Asselt, M. M. Vissers, F.Smit, P. De Jong, In-line control of fouling.Proceedings of heat exchanger fouling and cleaning-challenges and opportunities. Engineering Conferences International Kloster Irsee, Germany, (2005)\n[2] S. Zouaghi, T. Six, S. Bellayer, S. Moradi, S. G. Hatzikiriakos, T. Dargent, V. Thomy, Y. Coffinier, C. André, G. Delaplace, M. Jimenez, Antifouling Biomimetic Liquid-Infused Stainless Steel: Application to Dairy Industrial Processing, ACS Appl. Mater. Interfaces, 9 (2017) 26565−26573\n[3] S. Zouaghi, T. Six, S. Bellayer, Y. Coffinier, M. Abdallah, N-E. Chihib, C. André, G. Delaplace, M. Jimenez, Atmospheric pressure plasma spraying of silane-based coatings targeting whey protein fouling and bacterial adhesion management, Applied Surface Science, 455 (2018) 392–402