{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,3]],"date-time":"2025-12-03T18:11:17Z","timestamp":1764785477626,"version":"build-2065373602"},"reference-count":55,"publisher":"MDPI AG","issue":"16","license":[{"start":{"date-parts":[[2024,8,21]],"date-time":"2024-08-21T00:00:00Z","timestamp":1724198400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Shells are primarily composed of calcite and aragonite, making the inclusion of micronized shells as bio-based fillers in organic coatings a potential means to enhance the mechanical properties of the layers. A water-based coating was reinforced with 5 wt.% Acanthocardia tuberculata powder, 5 wt.% Mytilus galloprovincialis powder, and 5 wt.% of an LDPE\/ceramic\/nanoceramic composite. An improvement in abrasion resistance was achieved using micronized seashells, as demonstrated by the Taber test (evaluating both weight loss and thickness reduction). Additionally, Buchholz hardness improved with powders derived from Mytilus galloprovincialis. No significant differences were observed among the samples in terms of color and gloss after 200 h of UV-B exposure. However, the delamination length from the scratch after 168 h of exposure in a salt spray chamber indicated that the addition of particles to the polymeric matrix resulted in premature degradation, likely due to the formation of preferential paths for water penetration from the scratch. This hypothesis was supported by electrochemical impedance spectroscopy measurements, which revealed a decrease in total impedance at 0.01 Hz shortly after immersion in a 3.5% NaCl solution. In conclusion, the particle size and shape of the micronized shells improved abrasion resistance without altering color and gloss but led to a decrease in the coating\u2019s isolation properties.<\/jats:p>","DOI":"10.3390\/ma17164134","type":"journal-article","created":{"date-parts":[[2024,8,22]],"date-time":"2024-08-22T06:28:51Z","timestamp":1724308131000},"page":"4134","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Micronized Shell-Bioaggregates as Mechanical Reinforcement in Organic Coatings"],"prefix":"10.3390","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7027-6569","authenticated-orcid":false,"given":"Francisco Javier","family":"Rodr\u00edguez-G\u00f3mez","sequence":"first","affiliation":[{"name":"Departamento de Ingenier\u00eda Metal\u00fargica, Facultad de Qu\u00edmica, Universidad Nacional Aut\u00f3noma de M\u00e9xico, Del. Coyoac\u00e1n, Mexico City 04510, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6179-4842","authenticated-orcid":false,"given":"Massimo","family":"Calovi","sequence":"additional","affiliation":[{"name":"Department of Industrial Engineering, University of Trento, Via Sommarive 9, 38123 Trento, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7214-4634","authenticated-orcid":false,"given":"Stefano","family":"Rossi","sequence":"additional","affiliation":[{"name":"Department of Industrial Engineering, University of Trento, Via Sommarive 9, 38123 Trento, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,8,21]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"66","DOI":"10.3390\/lubricants2020066","article-title":"Abrasive resistant coatings\u2014A review","volume":"2","author":"Wu","year":"2014","journal-title":"Lubricants"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"203","DOI":"10.1016\/j.wear.2007.10.003","article-title":"Changes in the tribological behavior of an epoxy resin by incorporating CuO nanoparticles and PTFE microparticles","volume":"265","author":"Larsen","year":"2008","journal-title":"Wear"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"3275","DOI":"10.1016\/j.surfcoat.2012.01.031","article-title":"The influence of Al2O3 reinforcement on the properties of stainless steel cold spray coatings","volume":"206","author":"Spencer","year":"2012","journal-title":"Surf. Coat. Technol."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"122445","DOI":"10.1016\/j.matchemphys.2019.122445","article-title":"Investigation of crosslinking, mechanical properties and weathering stability of acrylic polyurethane coating reinforced by SiO2 nanoparticles issued from rice husk ash","volume":"241","author":"Bui","year":"2020","journal-title":"Mat. Chem. Phys."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"107243","DOI":"10.1016\/j.polymertesting.2021.107243","article-title":"The action of fillers in the enhancement of the tribological performance of epoxy composite coatings","volume":"100","author":"Jakab","year":"2021","journal-title":"Polym. Test."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"117","DOI":"10.1016\/j.porgcoat.2007.07.011","article-title":"Preparation of epoxy\u2013clay nanocomposite and investigation on its anti-corrosive behavior in epoxy coating","volume":"60","author":"Bagherzadeh","year":"2007","journal-title":"Prog. Org. Coat."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"89","DOI":"10.1016\/j.corsci.2010.09.026","article-title":"Corrosion performance of epoxy coatings containing silane treated ZrO2 nanoparticles on mild steel in 3.5% NaCl solution","volume":"53","author":"Behzadnasab","year":"2011","journal-title":"Corros. Sci."},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Calovi, M., Zanardi, A., and Rossi, S. (2024). Recent Advances in Bio-Based Wood Protective Systems: A Comprehensive Review. Appl. Sci., 14.","DOI":"10.3390\/app14020736"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"101749","DOI":"10.1016\/j.mtla.2023.101749","article-title":"Biocrystal assembly patterns, biopolymer distribution and material property relationships in Mytilus galloprovincialis, Bivalvia, and Haliotis glabra, Gastropoda, shells","volume":"28","author":"Peter","year":"2023","journal-title":"Materialia"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"555","DOI":"10.1016\/j.porgcoat.2012.02.002","article-title":"Effect of quantity and size distribution of calcite filler on the quality of water borne paints","volume":"74","year":"2012","journal-title":"Prog. Org. Coat."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"117976","DOI":"10.1016\/j.conbuildmat.2019.117976","article-title":"Research into the use of marble waste as mineral filler in soil pigment-based paints and as an active pigment in waterborne paints","volume":"241","author":"Tressmann","year":"2020","journal-title":"Constr. Build. Mater."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"168","DOI":"10.1016\/j.matdes.2013.12.032","article-title":"Characterization of green composites from biobased epoxy matrices and bio-fillers derived from seashell wastes","volume":"57","author":"Fombuena","year":"2014","journal-title":"Mater. Des."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"1278","DOI":"10.1007\/s12221-014-1278-5","article-title":"Mechanical and thermal properties of polypropylene (PP) composites filled with CaCO3 and shell waste derived bio-fillers","volume":"15","author":"Yao","year":"2014","journal-title":"Fibers Polym."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"2788","DOI":"10.1002\/pc.23878","article-title":"Characterization of bio-filler derived from seashell wastes and its effect on the mechanical, thermal, and flame retardant properties of ABS composites","volume":"38","author":"Moustafa","year":"2017","journal-title":"Polym. Compos."},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Wang, F., Liu, H., Yan, L., and Feng, Y. (2021). Comparative Study of Fire Resistance and Anti-Ageing Properties of Intumescent Fire-Retardant Coatings Reinforced with Conch Shell Bio-Filler. Polymers, 13.","DOI":"10.3390\/polym13162620"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"14718","DOI":"10.1016\/j.jmrt.2020.10.055","article-title":"Synergistic effect of clam shell bio-filler on the fire-resistance and char formation of intumescent fire-retardant coatings","volume":"9","author":"Li","year":"2020","journal-title":"J. Mater. Res. Technol."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"206","DOI":"10.1016\/j.bsecv.2020.03.011","article-title":"Mechanical properties of mortar containing recycled Acanthocardia tuberculata seashells as aggregate partial replacement","volume":"60","author":"Merlo","year":"2021","journal-title":"Boletin De La Soc. Espanola De Ceram. Y Vidr."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"235","DOI":"10.1016\/j.jclepro.2019.02.122","article-title":"Characterization on the recycling of waste seashells with Portland cement towards sustainable cementitious materials","volume":"220","author":"Wang","year":"2019","journal-title":"J. Clean. Prod."},{"key":"ref_19","doi-asserted-by":"crossref","unstructured":"de Freitas, J.J.G., Vieira, C.M.F., Natalli, J.F., Lavander, H.D., de Azevedo, A.R.G., and Marvila, M.T. (2024). Cleaner Production of Cementitious Materials Containing Bioaggregates Based on Mussel Shells: A Review. Sustainability, 16.","DOI":"10.3390\/su16135577"},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"3192","DOI":"10.1007\/s10163-023-01795-5","article-title":"A review of the mechanical properties and durability of concrete containing recycled seashells as a partial cement replacement","volume":"25","author":"Hasan","year":"2023","journal-title":"J. Mater. Cycles Waste Manag."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"494","DOI":"10.1016\/j.conbuildmat.2019.04.211","article-title":"Design and properties of cement coating with mussel shell fine aggregate","volume":"215","year":"2019","journal-title":"Constr. Build. Mater."},{"key":"ref_22","unstructured":"(2014). Standard Test Method for Specular Gloss (Standard No. ASTM D523-14)."},{"key":"ref_23","unstructured":"(2000). Determinazione Della Durezza con il Metodo di Penetrazione Buchholz (Standard No. ISO 2815-2000)."},{"key":"ref_24","unstructured":"(2010). Standard Test Method for Abrasion Resistance of Organic Coatings by the Taber Abraser (Standard No. ASTM D4060)."},{"key":"ref_25","unstructured":"(2011). Operating Salt Spray (Fog) Apparatus (Standard No. ASTM B117:2011)."},{"key":"ref_26","unstructured":"(2019). Standard Practice for Fluorescent UV-Condensation Exposures of Paint and Related Coatings (Standard No. ASTM D4587-11(2019)e1)."},{"key":"ref_27","doi-asserted-by":"crossref","unstructured":"Yu, Y., Jiang, M., Wang, S., Guo, Y., Jiang, T., Zeng, W., and Zhuang, Y. (2021). Impact of particle size on performance of selective laser sintering walnut shell\/co-pes powder. Materials, 14.","DOI":"10.3390\/ma14020448"},{"key":"ref_28","doi-asserted-by":"crossref","unstructured":"Fan, G., Liu, H., Liu, C., Xue, Y., Ju, Z., Ding, S., Zhang, Y., and Li, Y. (2022). Analysis of the influence of waste seashell as modified materials on asphalt pavement performance. Materials, 15.","DOI":"10.3390\/ma15196788"},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"032031","DOI":"10.1088\/1755-1315\/170\/3\/032031","article-title":"Research and application of shell powder","volume":"170","author":"Zhang","year":"2018","journal-title":"IOP Conf. Ser. Earth Environ. Sci."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"29543","DOI":"10.1039\/D0RA04271D","article-title":"An insight into the structure, composition and hardness of a biological material: The shell of freshwater mussels","volume":"10","author":"Chakraborty","year":"2020","journal-title":"RSC Adv."},{"key":"ref_31","doi-asserted-by":"crossref","unstructured":"Gigante, V., Cinelli, P., Righetti, M.C., Sandroni, M., Tognotti, L., Seggiani, M., and Lazzeri, A. (2020). Evaluation of mussel shells powder as reinforcement for PLA-based biocomposites. Int. J. Mol. Sci., 21.","DOI":"10.3390\/ijms21155364"},{"key":"ref_32","doi-asserted-by":"crossref","unstructured":"Srichanachaichok, W., and Pissuwan, D. (2023). Micro\/Nano structural investigation and characterization of mussel shell waste in Thailand as a feasible bioresource of CaO. Materials, 16.","DOI":"10.3390\/ma16020805"},{"key":"ref_33","unstructured":"(2018). Standard Practice for Computing the Colors of Objectives by Using the CIE System (Standard No. ASTM-E308-18)."},{"key":"ref_34","first-page":"383","article-title":"Colour difference \u2206E\u2014A survey","volume":"20","author":"Mokrzycki","year":"2011","journal-title":"Mach. Graph Vis."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"107793","DOI":"10.1016\/j.porgcoat.2023.107793","article-title":"Chemically-resistant epoxy novolac coatings: Effects of size-fractionated technical Kraft lignin particles as a structure-reinforcing component","volume":"183","author":"Laxminarayan","year":"2023","journal-title":"Prog. Org. Coat."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"1325","DOI":"10.1016\/j.ijbiomac.2022.12.008","article-title":"Efficient downstream valorization of lignocellulose after organosolv fractionation: Synergistic enhancement of waterborne coatings by co-assembled lignin@ cellulose nanocrystals","volume":"227","author":"Song","year":"2023","journal-title":"Int. J. Biol. Macromol."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"107949","DOI":"10.1016\/j.porgcoat.2023.107949","article-title":"Cationic UV-curing of isosorbide-based epoxy coating reinforced with macadamia nut shell powder","volume":"185","author":"Pezzana","year":"2023","journal-title":"Prog. Org. Coat."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"116326","DOI":"10.1016\/j.indcrop.2023.116326","article-title":"Olive pit powder as multifunctional pigment for waterborne paint: Influence of the bio-based filler on the aesthetics, durability and mechanical features of the polymer matrix","volume":"194","author":"Calovi","year":"2023","journal-title":"Ind. Crops Prod."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"105720","DOI":"10.1016\/j.porgcoat.2020.105720","article-title":"Effects of polymer hardness on the abrasive wear resistance of thick organic offshore coatings","volume":"146","author":"Momber","year":"2020","journal-title":"Prog. Org. Coat."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"729","DOI":"10.1007\/s11998-020-00437-x","article-title":"Taber abrasive wear resistance of organic offshore wind power coatings at varying normal forces","volume":"18","author":"Momber","year":"2021","journal-title":"J. Coat. Technol. Res."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"108262","DOI":"10.1016\/j.porgcoat.2024.108262","article-title":"Exploring polyamide 11 as a novel renewable resource-based filler in wood paint: Investigating aesthetic aspects and durability impact of the composite coating","volume":"188","author":"Calovi","year":"2024","journal-title":"Prog. Org. Coat."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"108529","DOI":"10.1016\/j.porgcoat.2024.108529","article-title":"Enhancing wood coatings with red beetroot-derived pigments: Investigating synergy with UV absorber and composite filler for improved durability and aesthetics","volume":"192","author":"Calovi","year":"2024","journal-title":"Prog. Org. Coat."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"106522","DOI":"10.1016\/j.porgcoat.2021.106522","article-title":"Enhancement of the properties of acrylic wood coatings with the use of biopolymers","volume":"162","author":"Janiszewska","year":"2022","journal-title":"Prog. Org. Coat."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"91","DOI":"10.1016\/j.porgcoat.2016.11.031","article-title":"Mechanical properties of UV-cured cellulose nanocrystal (CNC) nanocomposite coating for wood furniture","volume":"104","author":"Kaboorani","year":"2017","journal-title":"Prog. Org. Coat."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"49","DOI":"10.1016\/0300-9440(95)00555-2","article-title":"Filiform corrosion in polymer-coated metals","volume":"28","author":"Bautista","year":"1996","journal-title":"Prog. Org. Coat."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"107525","DOI":"10.1016\/j.porgcoat.2023.107525","article-title":"An electrochemical study on the mechanism of filiform corrosion on acrylic-coated carbon steel","volume":"179","author":"Cristoforetti","year":"2023","journal-title":"Prog. Org. Coat."},{"key":"ref_47","doi-asserted-by":"crossref","unstructured":"Calovi, M., and Rossi, S. (2023). Functional olive pit powders: The role of the bio-based filler in reducing the water uptake phenomena of the waterborne paint. Coatings, 13.","DOI":"10.3390\/coatings13020442"},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"110999","DOI":"10.1016\/j.dyepig.2022.110999","article-title":"Parameters that affect the photodegradation of dyes and pigments in solution and on substrate\u2013An overview","volume":"210","author":"Groeneveld","year":"2023","journal-title":"Dyes Pigm."},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"110598","DOI":"10.1016\/j.polymdegradstab.2023.110598","article-title":"Influence of organic and inorganic fillers on the photoaging behavior of polyolefins","volume":"219","author":"Masek","year":"2024","journal-title":"Polym. Degrad. Stab."},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"13357","DOI":"10.1021\/acs.jpcc.7b03581","article-title":"Nanoscale effects of radiation (UV, X-ray, and \u03b3) on calcite surfaces: Implications for its mechanical and physico-chemical properties","volume":"121","author":"Kabacinska","year":"2017","journal-title":"J. Phys. Chem. C"},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"1322","DOI":"10.1016\/j.corsci.2009.03.016","article-title":"Contribution to a better understanding of different behaviour patterns observed with organic coatings evaluated by electrochemical impedance spectroscopy","volume":"51","author":"Macedo","year":"2009","journal-title":"Corros. Sci."},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"1608","DOI":"10.1080\/03602559.2017.1280736","article-title":"Synthesis, characterization, and application studies of polyurethane acrylate thermoset coatings: Effect of hard segment","volume":"56","author":"Sultan","year":"2017","journal-title":"Polym.-Plast. Technol. Eng."},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/0300-9440(95)00581-1","article-title":"Application of electrochemical impedance spectroscopy to study the degradation of polymer-coated metals","volume":"26","author":"Amirudin","year":"1995","journal-title":"Prog. Org. Coat."},{"key":"ref_54","doi-asserted-by":"crossref","first-page":"139","DOI":"10.1016\/j.corsci.2015.09.011","article-title":"The influence of the chemically bonded interface between fillers and binder on the failure behaviour of an epoxy coating under marine alternating hydrostatic pressure","volume":"101","author":"Meng","year":"2015","journal-title":"Corros. Sci."},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"296","DOI":"10.1016\/j.porgcoat.2018.03.002","article-title":"Water uptake in protective organic coatings and its reflection in measured coating impedance","volume":"124","author":"Miszczyk","year":"2018","journal-title":"Prog. Org. Coat."}],"container-title":["Materials"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1996-1944\/17\/16\/4134\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T15:40:07Z","timestamp":1760110807000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1996-1944\/17\/16\/4134"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,8,21]]},"references-count":55,"journal-issue":{"issue":"16","published-online":{"date-parts":[[2024,8]]}},"alternative-id":["ma17164134"],"URL":"https:\/\/doi.org\/10.3390\/ma17164134","relation":{},"ISSN":["1996-1944"],"issn-type":[{"type":"electronic","value":"1996-1944"}],"subject":[],"published":{"date-parts":[[2024,8,21]]}}}