D2.2 - One Hybrid Solvent-based Coating with High Inorganic Content

Funded by the European Union under the Grant Agreement 101091464. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or European Health and Digital Executive Agency (HaDEA). Neither the European Union nor the granting authority can be held responsible for them. Sustainable surface protection by glass-like hybrid and biomaterials coatings Deliverable D.2.2 One hybrid solvent-based coating with high inorganic content Deliverable Information Responsible partner: MANO Work package No and Title: WP 2 SSdB-driven R&I of 3 novel Coating Materials & Demonstration of industrial assay Contributing partner(s): SIKEMIA Dissemination level1: PU Type: DEMO Due date: 30/06/25 Submission date: 01/07/25 Version: 3 1 PU = PUBLIC fully open ((warning) automatically posted online on the Project Results platforms) SEN = Sensitive — limited under the conditions of the Grant Agreement EUCl = EU classified under Decision 2015/444 2 of 14 Sustainable surface protection by glass-like hybrid and biomaterials coatings D.2.2: One hybrid solvent-based coating with high inorganic content Project Profile Programme Horizon Europe Call HORIZON-CL4-2022-RESILIENCE-01 Topic HORIZON-CL4-2022-RESILIENCE-01-23: Safe and sustainable by design chemicals and materials (RIA) Number 101091464 Acronym BIO-SUSHY Name Sustainable surface protection by glass-like hybrid and biomaterials coatings Start Date 1 January 2023 Duration 48 months Type of action HORIZON Research and Innovation Actions Granting authority European Health and Digital Executive Agency Project Coordinator MATERIA NOVA Document History Version Date Entity Remarks V1 17/06/2025 MATERIA NOVA Review by partners V2 23/06/2025 MATERIA NOVA Second review V3 30/06/2025 MATERIA NOVA Final version 3 of 14 Sustainable surface protection by glass-like hybrid and biomaterials coatings D.2.2: One hybrid solvent-based coating with high inorganic content Publishable Summary The Deliverable D.2.2 “One hybrid solvent-based coating with high inorganic content” is presented in this document and aims at presenting the demonstrator coating for the glass case study. The document describes the characteristics of the demonstrators and their properties after application on glass substrate: - General characteristics of the demonstrator - Physico-chemical characteristics of the coating material - Physico-chemical characteristics of the applied coating. - Toxicity tests - Conclusions 4 of 14 Sustainable surface protection by glass-like hybrid and biomaterials coatings D.2.2: One hybrid solvent-based coating with high inorganic content Table of Contents Publishable Summary .................................................................................................................................. 3 List of Figures ................................................................................................................................................ 4 List of Tables ................................................................................................................................................. 5 Table of Abbreviations ................................................................................................................................. 6 1. Development of hybrid solvent-based coatings with high inorganic content . Erreur ! Signet non défini. 2. Description ............................................................................................................................................ 7 2.1. General characteristics of the demonstrator ............................................................................. 7 2.2. Physico-chemical characteristics of the coating material ......................................................... 7 2.3. Physico-chemical characteristics of the applied coating........................................................ 11 3. Toxicity tests ....................................................................................................................................... 12 4. Conclusions ........................................................................................................................................ 14 List of Figures Figure 1. Scheme of basic sol formulation ................................................................................................. 8 Figure 2. Surface tension of functional groups .......................................................................................... 9 Figure 3. Pictures of the two demonstrators .......................................................................................... 10 Figure 4. Gel film formation after the spray deposition and curing ..................................................... 11 Figure 5. Spray deposition with rotating nozzle to cover jam jar and cosmetic jar. ............................ 12 Figure 6. Cell viability by MTT assay ......................................................................................................... 12 Figure 7. Results of cell viability by MTT assay with GlideBaseCoat formulation ................................ 13 Figure 8. Electrical and fluidic connections of the biomembrane sensor platform. ............................ 13 Figure 9. Activities of the biomembrane in the presence of the GlideCoat family. ............................. 14 5 of 14 Sustainable surface protection by glass-like hybrid and biomaterials coatings D.2.2: One hybrid solvent-based coating with high inorganic content List of Tables Table 1. BIO-SUSHY hybrid solvent-based coating with high inorganic content .................................... 7 Table 2. Composition of the basic sol formulation GlideBaseCoat .......................................................... 9 Table 3. General properties of GlideCoat family (viscosity measured with a Brookfield viscometer with a spindle at 200 rpm) ........................................................................................................................ 10 Table 4. GlideSilCoat physico-chemical properties................................................................................. 11 Table 5. GlideBioCoat physico-chemical properties ............................................................................... 11 6 of 14 Sustainable surface protection by glass-like hybrid and biomaterials coatings D.2.2: One hybrid solvent-based coating with high inorganic content Table of Abbreviations Abbreviation Definition HCA Hexadecane contact angle PFAS perand polyfluoroalkyl substances SSbD Safe-and-Sustainable-by-Design WCA Water contact angle WP Work package 7 of 14 Sustainable surface protection by glass-like hybrid and biomaterials coatings D.2.2: One hybrid solvent-based coating with high inorganic content 1. Objectives This deliverable covers the production of a PFAs-free hybrid solvent-based coating with high inorganic content for water and oil repellent properties. In this task, selection and synthesis of additives to promote adhesion and to improve chemical top surface chemistry is based on the substitution of PFAs which has a very low surface tension by a functional group which is accepted and has the lowest surface energy (higher than PFAs). The surface density of this functional group can be increased to make the surface comparable to a monolayer of fluorinated compounds. SIKEMIA dealt with the synthesis of biobased additives to reach performances. Materia Nova is in charge of the formulations of hybrid systems in solvent based solution which could also have the water and oil repelling properties. Table 1. BIO-SUSHY hybrid solvent-based coating with high inorganic content BIO-SUSHY Coating materials % biobased Ratio inorganic/organic Solvent Application process Hybrid sol gel coating Up to 25 % (modified fatty acids - biobased linkers) organic 5-15% Mix alcohol/water Spray; Curing : thermal (low temperature) 2. Description 2.1. General characteristics of the demonstrator The demonstrator is defined by a hybrid solvent-based coatings with high inorganic content. Two types of coating solutions are considered: - One polydimethylsiloxane-based PFAS free hybrid formulation (GlideSilCoat) - One cellulose-based PFAS free hybrid formulation (GlideBioCoat). The demonstrator takes the form of 2 formulations in liquid form. The solutions are stored in a plastic container and consist of different components that are prepared beforehand. The volume of the synthesized solution is about 220 ml with a weight of 200 g in a plastic bottle storage of 250 ml. After the synthesis of the formulation, the product is stable for at least 1 month in ambient conditions (pot life can be extended by storing the product at 4°C). 2.2. Physico-chemical characteristics of the coating material The hybrid solvent based formulation used to coat material such as glass in our case study relies on the chemical and mechanical properties of the coating but also the toxicology and environmental 8 of 14 Sustainable surface protection by glass-like hybrid and biomaterials coatings D.2.2: One hybrid solvent-based coating with high inorganic content impact of the different compounds used to synthesise the product. Thus we proceed as schematized in figure 1. Figure 1. Scheme of basic sol formulation The first step is the development of a basic formulation with interesting mechanical (adhesion, cohesion, scratch resistance…) and chemical properties (water contact angle and hexadecane contact angle) with respect to the toxicity data given by WP4 activity. The basic formulation is named GlideBaseCoat BIO-SUSHY product and the main component is listed in Table 1 below. IDENTIFICATION DENOMINATION CONCENTRATION HAZARD CLASSIFICATION CAS : 107-98-2 CE : 203-539-1 INDEX : 603-064-00-3 REACH : 01-2119457435-35 1-methoxy-2-propanol < 50-95 H226 H336 CAS: 64-17-5 CE : 200-578-6 INDEX : 603-002-00-5 Ethanol < 0,1 – 5 H225 H319 9 of 14 Sustainable surface protection by glass-like hybrid and biomaterials coatings D.2.2: One hybrid solvent-based coating with high inorganic content REACH : 01-2119457610-43XXXX CAS : 78-10-4 CE : 201-083-8 INDEX : 014-005-00-00 REACH : 01-2119496195-28XXXX Tetraethyl orthosilicate < 0,1-20 H226 H319 H332 H335 CAS : 2031-67-6 CE : 217-983-9 INDEX : - REACH : No registration number Méthyltriethoxysilane < 0,1-5 H226 Table 2. Composition of the basic sol formulation GlideBaseCoat In this basic formulation, additives are incorporated to enhance chemical properties and more specifically the hydrophobic and oleophobic properties. To substitute PFAs with their intrinsic chemical properties, we have selected compounds based on the surface tension of the functional group. As shown in the figure 2 below, methyl group (-CH3) has the lowest surface tension, after the fluorinated group. Figure 2. Surface tension of functional groups A selection of compounds bearing the methyl group will be incorporated into the sol formulation and the formulation will bring the methyl group at the top surface.