A simple approach with scale-up potential towards intrinsically flame-retardant bio-based co-plasticizer for PVC artificial materials / Yong Xu in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 2 (Année 2020)  

[article]  inJOURNAL OF LEATHER SCIENCE AND ENGINEERING > Vol. 2 (Année 2020) . - 9 p. Titre : A simple approach with scale-up potential towards intrinsically flame-retardant bio-based co-plasticizer for PVC artificial materials Type de document : texte imprimé Auteurs : Yong Xu, Auteur ; Songhang Wang, Auteur ; Jinming Chang, Auteur ; Zhou Xu, Auteur ; Qi Zeng, Auteur ; Zhonghui Wang, Auteur ; Jun Yan, Auteur ; Yi Chen, Auteur Année de publication : 2020 Article en page(s) : 9 p. Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Biomatériaux Chlore Chlorure de polyvinyle Cuir synthétique Esters méthyliques d'acides gras Ignifugeants Composé chimique utilisé pour réduire l'inflammabilité. Il peut être incorporé au produit durant sa fabrication ou appliqué ultérieurement à sa surface. Plastifiants Index. décimale : 668.9 Polymères Résumé : As an imitation of genuine leather, polyvinyl chloride (PVC) artificial materials are versatile, but suffers from being flammable due to the presence of large amounts of combustible plasticizers. Under such circumstance, intrinsically flame-retardant plasticizers displaying dual functions have been a subject of intensive research interest. However, previous strategies attempting to covalently attach flame-retardant moiety to plasticizers invariably required either expensive starting materials or laborious and tedious procedures, ultimately limiting their scale-up application in industry. In addition, driven by escalating demand of halogen-free flame retardants worldwide from an environmental health perspective, previously reported intrinsically flame-retardant plasticizers were mainly halogen-free, less attractive in PVC artificial material industry simply because PVC itself is a halogen-containing polymer. Here, we report an approach to introduce chlorine moieties into unsaturated fatty acid methyl ester by a simple addition reaction occurring on carbon-carbon double bonds, yielding a chlorine-containing, intrinsically flame-retardant bio-plasticizer. When combined with di-(2-ethylhexyl) phthalate (DOP) in PVC formulations, the chlorinated fatty acid methyl ester is qualified as a co-plasticizer while conferring flame retardancy upon the PVC coatings. This approach involves only a one-step procedure that employs renewable fatty acid methyl esters and cheap chlorine gas as raw materials, thus being of great potential to enable intrinsically flame-retardant bio-plasticizers on a large scale to manufacture functional PVC artificial materials for application in fire-prone scenarios. Note de contenu : - Materials - Synthesis of chlorinated fatty acid methyl ester (CFAME) - Preparation of plasticized PVC coating - Characterization - Table 1 : Composition of PVC/CFAMEx - Table 2 : Composition of CFAME identified by comparing the experimental mass spectra of the components in Fig. 3 against NIST08 mass spectral library - Table 3 : Glass transition temperatures of PVC/CFAMEx coatings as determined by DMA analysis - Table 4 : TGA data of PVC/CFAMEx coatings DOI : https://doi.org/10.1186/s42825-020-00022-3 En ligne : https://link.springer.com/content/pdf/10.1186/s42825-020-00022-3.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37333 [article]

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