Methods for determination of plasticizer migration from polyvinyl chloride synthetic materials : a mini review / Yi Chen in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 4 (Année 2022)  

[article]  inJOURNAL OF LEATHER SCIENCE AND ENGINEERING > Vol. 4 (Année 2022) . - 10 p. Titre : Methods for determination of plasticizer migration from polyvinyl chloride synthetic materials : a mini review Type de document : texte imprimé Auteurs : Yi Chen, Auteur ; Shuai Zhou, Auteur ; Siyu Pan, Auteur ; Dongfang Zhao, Auteur ; Jianshe Wei, Auteur ; Minzhong Zhao, Auteur ; Haojun Fan, Auteur Année de publication : 2022 Article en page(s) : 10 p. Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Chlorure de polyvinyle Cuir Essais (technologie) Evaporation Exsudation Extraction (chimie) Plastifiants Produits chimiques -- Migration Index. décimale : 668.9 Polymères Résumé : Plasticizer migration is responsible for premature coating failure in polyvinyl chloride (PVC) synthetic materials that continue to benefit our daily life as a reliable and cost-efficient simulant of genuine leather. In this context, the establishment of standard assays that measure the migration rate of plasticizers under varying scenarios plays a pivotal role in comparing durability of those PVC-derived leather-simulants. In this review, multiple methodologies developed over the last decade for determining plasticizer migration from PVC coating are compiled, with their operational principles, merits, and limitations being taken into consideration along with specific apparatus required for each. A concluding section discusses current challenges in this field, and highlights how nuclear magnetic resonance and computational simulation surpass conventional assays in yielding intercomparable results, and hence screening migration-resistant plasticizers in a labor- and time-saving way. Since migration resistance represents a decisive performance indicator of plasticizers, this systematic review may provide guidance to quite a few practitioners in PVC synthetic material industry, who are now engaged in validating various sustainable alternatives with performance allegedly equal to conventional but toxic di-(2-ethylhexyl) phthalate plasticizer. Note de contenu : - Test methods for plasticizer migration : Test methods for plasticizer volatilization - Test methods for plasticizer exudation - Test methods for plasticizer extraction - Table 1 : Methods currently available for determination of plasticizer migration from PVC synthetic materials DOI : https://doi.org/10.1186/s42825-022-00081-8 En ligne : https://link.springer.com/content/pdf/10.1186/s42825-022-00081-8.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37576 [article]

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The effect of processing and treatment parameters on the discoloration of painted joinery due to resin exudation from knots / R. M. Nussbaum in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 87, B3 (09/2004)  

[article]  inSURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS > Vol. 87, B3 (09/2004) . - p. 181-186 Titre : The effect of processing and treatment parameters on the discoloration of painted joinery due to resin exudation from knots Type de document : texte imprimé Auteurs : R. M. Nussbaum, Auteur Année de publication : 2004 Article en page(s) : p. 181-186 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Décoloration Exsudation Gommes et résines Noeuds du bois Pin sylvestre Revêtement en phase solvant Statistique Index. décimale : 667.9 Revêtements et enduits Résumé : The effect of different parameters regarding the processing and treatment on the discoloration of knots (so called knot yellowing) on painted joinery of Scots pine was evaluated in an extensive study. The parameters studied included the kiln-drying temperature, the distance of the knot from the original kiln-dried surface, type of preservative treatment and the type of coating system. Wood samples representing 92 different test classes were exposed outdoors for five months. Knot yellowing was measured with a colour difference meter. Statistical evaluation of the results was performed by multivariate data analysis. Knot yellowing was affected by several of the studied factors, although the largest effect was provided by preservative treatment with solvent-borne products. Note de contenu : - EXPERIMENTAL : General test design -Kinl drying - Test material - Treatments - Exposure and measurement of discoloration - STATISTICAL ANALYSIS AND RESULTS : - Table 1 : Retention data for the solvent-borne wood preservative systems - Table 2 : Coating Systems DOI : 10.1007/BF02699633 En ligne : https://link.springer.com/content/pdf/10.1007/BF02699633.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5456 [article]

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