Enhancing surface durability with antimicrobial coatings / James Rapley in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 212, N° 4676 (08/2022)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 212, N° 4676 (08/2022) . - p. 23-25 Titre : Enhancing surface durability with antimicrobial coatings Type de document : texte imprimé Auteurs : James Rapley, Auteur Année de publication : 2022 Article en page(s) : p. 23-25 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antimicrobiens Formulation (Génie chimique) Revêtements -- Industrie et commerce Surfaces -- Nettoyage Index. décimale : 667.9 Revêtements et enduits Résumé : The author discusses the market for and development of antimicrobial coatings. The need for durable and more environmentally friendly solutions for coating materials has been shaping the coatings industry for many years. Consumers from various markets, including the construction trade and automotive manufacturing, want coatings that enhance the resilience of surfaces to stains, dirt, and mildew. However, even with the addition of protectants and decorative paints or lacquers, microbes are still able to adhere to a surface, where they can multiply rapidly. Their uncontrolled growth and spread as a result of contact, environmental conditions or inadequate cleaning (Figure 1) can then lead to unpleasant consequences, including spoilage, stains, nasty odours and a reduction in the usable lifetime of a product due to contamination or biodegradation. There are a number of treatments that consumers can use to help reduce the growth and spread of microbes on surfaces, and using them regularly is essential. However, standard cleaning products often have limited residual activity, meaning that they stop working once they dry. This can allow surfaces to become quickly re-contaminated by contact or airborne sources, which is a particular concern for high-touch points such as countertops and doors. Antimicrobial technologies in coatings can help to address these challenges by effectively creating a protective layer that keeps surfaces cleaner and fresher for longer. This 'always on' protection works around the clock to help prevent the growth of microbes on a surface for the lifetime of the coating, without washing or wearing away. For just a minimal cost, this universel lifetime preventative measure provides the perfect complement to standard routine cleaning practices, employing a multi-defence strategy against the growth of microbes to improve overall surface cleanliness. Note de contenu : - A growing market - Developing antimicrobial coatings : Choosing the right antimicrobial - Compatibility - Application - The future is cleaner - Fig. 1 : Example of surfaces that are susceptible to microbial growth - Fig. 2 : Choosing an antimicrobial that is compatible with the coating is essential. Left: polyurethane chemistry mixed with an incompatible antimicrobial leads to visuat defects after drying. Right: turnkey coatings are compatible with a wide range of chemistries and have minimal visual impact - Fig. 3 : Current powder or pre-dispersion coating manufacturing process - Fig. 4 : Liquid, dispersion, powder and turnkey coating before and after 72 hours has elapsed. Precipitation and agglomeration start to occur after 72 hours ; the turnkey coating solution remains stable - Fig. 5 : Fully integrated antimicrobial technology in coatings En ligne : https://drive.google.com/file/d/1Ub9MFE1gCgpalSax1V52jjGU9m0ywIoi/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37869 [article]

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A more sustainable future / James Rapley in EUROPEAN COATINGS JOURNAL (ECJ), (06/2023)  

[article]  inEUROPEAN COATINGS JOURNAL (ECJ) > (06/2023) . - p. 34-38 Titre : A more sustainable future : Novel antimicrobial technologies to enhance surface durability and longevity Type de document : texte imprimé Auteurs : James Rapley, Auteur Année de publication : 2023 Article en page(s) : p. 34-38 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antimicrobiens Durée de vie (Ingénierie) Métaux lourds -- Produits de remplacement Polyacryliques Polyuréthanes Revêtements en phase aqueuse -- Additifs Revêtements organiques Index. décimale : 667.9 Revêtements et enduits Résumé : Water-based coatings can be notoriously difficult to treat with traditional antimicrobial technologies, and issues such as clumping, non-uniformity and coating defects can reduce yields and hinder coating aesthetics. These technologies also tend to rely on heavy-metal formulations, which require regulatory approval in certain markets. Novel, heavy-metal-free antimicrobial technologies offer sustainable benefits. Note de contenu : - Built-in antimicrobial control to fight surface bacteria - Technical challenges of water-based coatings - Heavy-metal-free development for regulatory compliance - Effective inhibition of bacterial growth - Adhesion maintained with novel functionality - Durable additive to support sustainability goals En ligne : https://drive.google.com/file/d/1R1xl7F8WbY8kYTkpWeVHrjUtTnwsEjTd/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39462 [article]

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Of microbes and men / James Rapley in EUROPEAN COATINGS JOURNAL (ECJ), N° 11 (11/2021)  

[article]  inEUROPEAN COATINGS JOURNAL (ECJ) > N° 11 (11/2021) . - p. 34-38 Titre : Of microbes and men : Turnkey solutions for antimicrobial coatings Type de document : texte imprimé Auteurs : James Rapley, Auteur Année de publication : 2021 Article en page(s) : p. 34-38 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antimicrobiens Revêtements organiques Revêtements protecteurs Index. décimale : 667.9 Revêtements et enduits Résumé : Growing concerns about microbes and cleanliness in the post-pandemic world have sparked a rapid interest in antimicrobial coatings. This article highlights the challenges of bringing these innovations to the industry and describes how continually developing tools and procedures can ensure that they become a seamless and invisible addition to coatings. Note de contenu : - Redefining coatings in the post-pandemic world - The path to turnkey coating solutions - Challenges of existing coating techniques and processes - Tackling compatibility issues - The future is protected - Fig. 1 : Bacteria mould, fungi, algae and virus - Fig. 2 : Example of surfaces that are susceptible to microbial growth - Fig. 3 : Current coating process using powder or pre-dispersion - Fig. 4 : Liquid, dispersion, powder and turnkey coating. The turnkey coating is easily mixed and remains stable for longer, leading to improved shelf life and processability. Precipitation and agglomeration start to occur alter 72 hours ; the turnkey coating solution remains stable - Fig. 5 : Improved process for fully integrated antimicrobial technology in coatings - Fig. 6 : Correct choice of antimicrobial is essential. Left: Polyurethane chemistry mixed with an incompatible antimicrobial leads to visual defects alter drying. Right: Turnkey coatings are compatible with a wide range of chemistries and have minimal visuel impact En ligne : https://drive.google.com/file/d/19Nhk1Dtuk_rDKpuMt_M4g02yH7PSR9Mv/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36481 [article]

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