Understanding dispersion of copper phthalocyanine alpha blue pigment in polyethylene masterbatch with the use of wax / Mert Yücetürk in COLORATION TECHNOLOGY, Vol. 136, N° 6 (12/2020)  

[article]  inCOLORATION TECHNOLOGY > Vol. 136, N° 6 (12/2020) . - p. 526-534 Titre : Understanding dispersion of copper phthalocyanine alpha blue pigment in polyethylene masterbatch with the use of wax Type de document : texte imprimé Auteurs : Mert Yücetürk, Auteur ; Mehmet Özgür Seydibeyoglu, Auteur Année de publication : 2020 Article en page(s) : p. 526-534 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bleu (couleur) Caractérisation Cires Dispersions et suspensions Essais dynamiques Films plastiques Granulométrie Mélanges-maîtres (chimie) Phtalocyanine de cuivre Pigments inorganiques Polyéthylène Traction (mécanique) Index. décimale : 667.3 Teinture et impression des tissus Résumé : Coloured plastics and polymers are widely used in packaging and consumer goods. Despite their critical roles, there is limited literature on detailed analysis of effective pigment dispersion in polymer matrices for masterbatch applications. In this study, detailed research was conducted on pigment dispersion using different wax materials and their performances in polyethylene masterbatches were compared. During the study, it was first found that the presence of salt crystals plays a critical role in dispersion in one of the tested pigments. Using a laser particle size device, it was shown that homogeneous particle size distribution is another critical parameter for proper pigment distribution. Although filter testing is a common method in industrial applications, there is very limited information in the academic literature. The filter test method was used to examine the effects of different polyethylene waxes on pigment dispersion. The best filter pressure values were obtained in masterbatches made with micronised wax. It was also observed that the improved dispersion increased the mechanical properties of the masterbatch. The masterbatch colours were measured with a sphere spectrophotometer and it was observed that uniform pigment distribution increased the colour strengths. Similar results were also seen in polyethylene films produced by the blown film process. Note de contenu : - EXPERIMENTAL : Materials - Scanning electron microscopy - Pigment particle size analysis - Masterbatch production - Measurement of the quality of dispersion - Preparation of plates - Colour measurement - Tensile test - Preparation of plastic films - RESULTS AND DISCUSSION : Pigment analysis - Masterbatch analysis DOI : https://doi.org/10.1111/cote.12506 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12506 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34706 [article]

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