Naturals : why chemical composition matters / Antonia Kostic in GLOBAL PERSONAL CARE, Vol. 24, N° 3 (03/2023)  

[article]  inGLOBAL PERSONAL CARE > Vol. 24, N° 3 (03/2023) . - p. 39-41 Titre : Naturals : why chemical composition matters Type de document : texte imprimé Auteurs : Antonia Kostic, Auteur ; Giorgio Dell'Acqua, Auteur Année de publication : 2023 Article en page(s) : p. 39-41 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Composition chimique Cosmétiques Extraits (pharmacie) -- Efficacité Extraits de plantes:Extraits (pharmacie) Ingrédients cosmétiques Sécurité des produits de consommation Index. décimale : 668.5 Parfums et cosmétiques Résumé : When we taste a naturally-derived product such as coffee or olive oil, we may have a different sensorial experience based on the product’s origin and its processing. Malbec wine produced in Argentina may taste similar to Malbec wine produced in California but not identical. Olive oil from Greece does not have the same sensorial profile as that from Tuscany. They are just different and, as consumers, we can choose the one that fits the experience we want. Those differences are linked to genetic and environmental components as well as processing practices. Similarly, naturallyderived cosmetic ingredients from the same plant can have different characteristics and chemical properties depending on the various geographical locations of the plant as well as the processing of the extract. Those properties can eventually affect the safety and efficacy of the finished cosmetic product and also in this case the formulator can choose the one that is looking to fit its formulation design. It is important to know that not only colour and smell could be affected (a prerequisite for selection) but also chemical composition. Since a specific active or undesired substance can be in a higher or lower concentration depending on the plant’s origin and processing, the ingredient composition can affect the safety and efficacy of the finished product. Note de contenu : - The influence of plant geographical location - environment - The influence of plant geographical location - genotype En ligne : https://drive.google.com/file/d/1L98xB4e5s8DI8dDjYDcVizdFyp9teOt1/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38979 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
23899	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Predicting coatability in multi-layer coatings / Marc Eberhardt in EUROPEAN COATINGS JOURNAL (ECJ), (04/2024)  

[article]  inEUROPEAN COATINGS JOURNAL (ECJ) > (04/2024) . - p. 26-31 Titre : Predicting coatability in multi-layer coatings : Combining desirable properties of several layers to effect specific functionalities and appearances of a coating Type de document : texte imprimé Auteurs : Marc Eberhardt, Auteur Année de publication : 2024 Article en page(s) : p. 26-31 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Automobiles -- Vernis Composition chimique Hydrophilie Nivellement Revêtements multicouches Revêtements organiques Vernis -- Additifs Index. décimale : 667.9 Revêtements et enduits Résumé : We describe a sophisticated surface additive technology and propose suitable measurement methods to predict the behaviour of multi-layer systems in terms of coatability. Such methodology is an indispensable tool for guiding additive selection, and it significantly reduces the time and cost associated with (re)formulation. Note de contenu : - Chemical composition of the tested additives - Unique properties achieved with the latest generation of levelling additives - levelling behavious and visual appearance of a conventional clearcoat - Surface tension ad surface smoothness (SLIP) of a conventional clearcoat - Surface-analytical parameters that described compatibility between coating layers - Evaluation of the WoA and S of a conventional clearcoat - Application in a two-colour system - Potential in low temperature cured systems - Table 1 : Comparison of a standard silicone additive with the new additive structure Macro 2 in a conventional 2-pack refinish clearcoat : long wave (LW), short wave (SW) and distinctness of image (DOI). The first layer of coating was recoated with a second layer of the same coating after different flash-off times En ligne : https://drive.google.com/file/d/174qrKk5RMc473msqahTNykafEF-zouq3/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40843 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
24572	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Studies on water dispersible products based on sulphitation of wool wax by trichlorosilyl sulphite agent / El-Shahat H. A. Nashy in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 86, N° 5 (09-10/2002)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 86, N° 5 (09-10/2002) . - p. 212-218 Titre : Studies on water dispersible products based on sulphitation of wool wax by trichlorosilyl sulphite agent Type de document : texte imprimé Auteurs : El-Shahat H. A. Nashy, Auteur ; N. H. El-Sayed, Auteur ; S. S. Elmorsy, Auteur Année de publication : 2002 Article en page(s) : p. 212-218 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation Composition chimique Huiles et graisses synthétiques Lanoline Sulfitation Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Wool wax is an industrial by-product which has been investigated for further use in the leather industry. It was treated with trichlorosilyl sulphite (TCSS) as a new reagent to obtain an oil having sulphite groups. Trichlorosilyl sulphite (TCSS) can be generated in situ by the interaction of tetrachlorosilane with sodium sulphite or sodium bisulphite. This forms a basic raw material stock for the development of a range of synthetic fatliquors which can be used in the leather industry equivalent to those based on sulphochlorinated oils. Note de contenu : - MATERIALS AND METHODS : Materials - Methods - Scanning Electron Microscopy - RESULTS AND DISCUSSION : A) - Wool wax acids - B) - USM Composition - 3) - FT-IR - Visual properties of fatliquored leather - Visual properties of fatliquored leather - Scanning Electron Microscopy (SEM) - Table 1 : The physical and chemical characteristics of El-Bieda wool wax. - Table 2 : Composition of wool wax fatty acids - Table 3 : Composition of wool wax USM - Table 4 : Sulphitation of wool wax under different conditions - Table 5 : Visual properties of fatliquored leather En ligne : https://drive.google.com/file/d/1UJnqRYet2KTiIFwP-tsp67_sdpHjdYa-/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39861 [article]

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

---

1 (1 - 3 / 3)