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Geographic link to efficiency of Helichrysum italicum / Géraldine Lemaire in PERSONAL CARE EUROPE, Vol. 9, N° 1 (02/2016)
[article]
Titre : Geographic link to efficiency of Helichrysum italicum Type de document : texte imprimé Auteurs : Géraldine Lemaire, Auteur ; Virginie Lemaire, Auteur ; Malvina Olivero, Auteur ; Elodie Dugas, Auteur ; Elisabeth Devilard, Auteur Année de publication : 2016 Article en page(s) : p. 23-25 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antiâge
Cosmétiques
Etudes comparatives
Huiles essentielles
Peau -- Soins et hygièneIndex. décimale : 668.5 Parfums et cosmétiques Résumé : Helichrysum italicum is a flowering plant of the Asteraceae family. The plant produces essential oil from its blossoms which is used for medicinal purposes including anti-inflammatory, fungicidal and astringent properties. In addition, it soothes burns and raw chapped skin. In order to find other properties for cosmetic uses, mainly to prevent skin ageing, we compared chemical composition and efficacy of Helichrysum italicum essential oils coming from different geographical origins : Corsica and Balkan.
By chromatography analysis, we showed that the composition of the Corsican oil is dominated by neryl acetate, while the Balkan one features "alpha"-pinene and "alpha"-caryophyllene and the relative abundance of the corresponding constituents is significantly different according to the origin. In addition, using cDNA array, we demonstrated that genes related to skin barrier and cohesion show higher expression in skin samples treated with the Corsican oil than in those treated with the Balkan oil. This study demonstrates that the Corsican essential oil could be more efficient than the Balkan one in promoting skin function and hydration.Note de contenu : - RESULTS AND DISCUSSION : Chemical composition of Balkan and Corsican essential oils
- EPIDERMAL DIFFERENTIATION COMPLEX (EDC) CLUSTER : UP-REGULATED GENES : Figure 1 - Table 1 : Chemical composition of the essential oils of Helichrysum italicum from Corsica and Balkan - Table 2 : Genes up-regulated by Corsican or Balkan Helichrysum italicum essential oils.
- TABLES : 1. Chemical composition of the essential oils of Helichrysum italicum from Corsica and Balkan - 3. Genes up-regulated by Corsican or Balkan Helychrysum italicum essential oilsEn ligne : https://drive.google.com/file/d/1u-POmQ7jIADxZffWAuPBr1cncq5tmjG1/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25601
in PERSONAL CARE EUROPE > Vol. 9, N° 1 (02/2016) . - p. 23-25[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17835 - Périodique Bibliothèque principale Documentaires Disponible Heating of intermediates - How and with what ? / Peter Schwarzmann in KUNSTSTOFFE INTERNATIONAL, Vol. 105, N° 1-2 (01-02/2015)
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Titre : Heating of intermediates - How and with what ? : The common IR radiators at a glance Type de document : texte imprimé Auteurs : Peter Schwarzmann, Auteur Année de publication : 2015 Article en page(s) : p. 52-54 Langues : Anglais (eng) Catégories : Céramique industrielle
Chauffage -- Appareils et matériels
Etudes comparatives
Matières plastiques -- Thermoformage
Quartz
Rayonnement infrarougeIndex. décimale : 668.4 Plastiques, vinyles Résumé : During thermoforming, intermediates are heated to forming temperature using infrared radiators. The most common IR radiators are ceramic, quartz and halogen radiators – but they are not all equally suitable for each type of intermediate. Ideally the emission spectrum of the radiator matches the absorption spectrum of the intermediate. Note de contenu : - Performance features of ceramic, quartz an dbright radiators at a glance
- The special case : single-station sheet processing machinesEn ligne : https://drive.google.com/file/d/1hqvkjEk4kR5UOykE7AGV0P6Lrfx2EF06/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23299
in KUNSTSTOFFE INTERNATIONAL > Vol. 105, N° 1-2 (01-02/2015) . - p. 52-54[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16992 - Périodique Bibliothèque principale Documentaires Disponible High-solids epoxy systems for protective and marine coatings / Daniel Totev in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 31, N° 2 (02/2014)
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Titre : High-solids epoxy systems for protective and marine coatings Type de document : texte imprimé Auteurs : Daniel Totev, Auteur ; Marcello Rufo, Auteur Année de publication : 2014 Article en page(s) : p. 51-60 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Epoxydes
Etudes comparatives
Formulation (Génie chimique)
Haut extrait sec
Liants
Marines (peinture)
Revêtement en phase solvant:Peinture en phase solvant
Revêtements antisalissures:Peinture antisalissures
Revêtements protecteursIndex. décimale : 667.9 Revêtements et enduits Résumé : Epoxy systems have a long and successful track record in marine and protective coatings, mainly driven by their excellent barrier properties, corrosion, and chemical resistance.
There is a continuous trend in this industry to move the technology from the so-called conventional paint to high-solids coatings and, more recently, to ultra-high-solids coatings. This change not only brings some technical challenges that need to be addressed by the formulators, but it also brings benefits such as lower VOCs, improved cure under adverse conditions, and the possibility to increase dry film thickness without having issues of solvent entrapment.
This article will review the basics of high-solids epoxy coatings compared to conventional epoxy technologies, and describe the fundamental technical differences.Note de contenu : - Table 1 : Example formulation and properties of conventional and high-solids epoxy coatings
- Table 2 : General properties of conventional solvent-borne epoxy coatings vs. high-solids epoxy coatings
- Table 3 : General benefits and limitations of the different curing agent typesPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21662
in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL) > Vol. 31, N° 2 (02/2014) . - p. 51-60[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16091 - Périodique Bibliothèque principale Documentaires Disponible Holistic evaluation of industrial adhesives / Martin Brandtner-Hafner in ADHESION - ADHESIVES + SEALANTS, Vol. 17, N° 4/2020 (2020)
[article]
Titre : Holistic evaluation of industrial adhesives Type de document : texte imprimé Auteurs : Martin Brandtner-Hafner, Auteur Année de publication : 2020 Article en page(s) : p. 20-23 Langues : Multilingue (mul) Catégories : Adhésifs -- Analyse
Adhésifs -- Propriétés mécaniques
Assemblages collés
Chlorure de polyvinyle
Collage
Essais de résilience
Essais dynamiques
Etudes comparatives
EvaluationIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : The selection of complex adhesive systems is still a challenging task. Industrial practice shows that technical data sheets provided by manufacturers alone do not allow an assessment of adhesive performance and failure behavior. A holistic assessment based on empirical-valid data might help here. Note de contenu : - A novel assessment methodology
- Testing
- Assessment
- Benchmarking
- Table 1 : Classification of the performance indicators of adhesives including examples
- Table 2 : Overview ot the tested adhesives
- Table 3 : Overview of input and output variables including physical, chemical and economic properties
- Table 4 : Results of the adhesive performance study (Disclaimer : Results without guarantee. Fracture Analytics assumes no liability for the effects of the result on bonding processes and product performance based on this study
- Fig. 1 : The same adhesive, but different test curves. The standardized tensile test according to ASTM D638 causes candidate Murexin PU330 to fail unstable, whereas the change to a stable test method according to Fracture Analytics leads to steady curves
- Fig. 2 : Visualization of broken PVC joint specimens after lap-shear tests were carried out with cyanoacrylate adhesive. Thanks to a novel testing device, such fractures could be avoided in this study
- Fig. 3 : The three stress modes I (crack opening), II (shearing) and III (torsion) for the fracture analytical creation of performance indicators
- Fig. 4 : Illustration of the modeled bonding process with input and output parameters
- Fig. 5 : Comparison of the adhesive bonding performanceEn ligne : https://drive.google.com/file/d/1g1H3jCoywlPh2QNL_3xrO-qoHUSzrIaG/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35053
in ADHESION - ADHESIVES + SEALANTS > Vol. 17, N° 4/2020 (2020) . - p. 20-23[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22451 - Périodique Bibliothèque principale Documentaires Disponible Hot-tack measurements : an efficient development tool for water-based polyurethanes / H-W. Lucas in ADHESIVES AGE, Vol. 40, N° 2 (02/1997)
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Titre : Hot-tack measurements : an efficient development tool for water-based polyurethanes Type de document : texte imprimé Auteurs : H-W. Lucas, Auteur ; G. Festel, Auteur ; J. Ramthun, Auteur ; R. Witkowski, Auteur ; Jeffrey F. Dormish, Auteur Année de publication : 1997 Article en page(s) : p. 18-23 Langues : Américain (ame) Catégories : Adhésifs en phase aqueuse
Adhésifs en phase solvant
Essais d'adhésion
Etudes comparatives
Polyuréthanes
Réticulation (polymérisation)
TackIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : Thermoactivatable polyurethanes, proven for a long time as solventborne systems, are important adhesive raw materials. Using this group of adhesives, durable and reliable adhesive bonds can be manufactured in an economical way. Therefore, thermoactivatable polyurethanes are the raw materials of choice for many industrial applications, especially when working with difficult-to-bond substrates such as plasticized PVC.
As environmental pressures have increased to remove solvent from the workplace, environmentally friendly alternatives based on aqueous polyurethane dispersions are being offered by the producers of adhesive raw materials. The data shows that the performance of these raw materials is in no way inferior to the solvent-based systems.
Because of the rapidly changing demands of the market (substrates, films and application equipment), raw material suppliers have to quickly and efficiently find answers to meet the needs of adhesive end-users. The hot-tack measuring device discussed here was developed to assist in the development of new adhesive raw materials.
Examples of some of our development work demonstrate the power of this new tool and show that tack measurements match the results of adhesion tests. The influence of the main application parameters on tack and adhesion were discussed (e.g., temperature of the adhesive film, applied pressure and time of contact). Using this equipment, it is possible to predict the application behavior of thermoactivatable adhesives under industrial application conditions. The tack measuring device is used not only for the development of new products, but also to check the consistency and quality of our commercial products.Note de contenu : - HEAT ACTIVATION : DEVELOPMENT OF A MODERN TEST METHOD : Why measure hot-tack ?
- HOT-TACK MEASUREMENTS AND CORRELATION TO ADHESION TEST RESULTS : Test as function of the adhesive film temperature - Tack dependence on pressure - Correlation between tack and adhesion test results - Activation temperature 50°C
- MEASUREMENTS ON CHEMICAL CROSSLINKING AND CRYSTALLIZING SYSTEMS
- RAW MATERIAL DEVELOPMENT USING TACK EXPERIMENTS : High temperature laminations - Low temperature activable - Tack measurements of compounded dispersions
- COMPARISON OF SOLVENT-BASED AND WATER-BASED POLYURETHANESEn ligne : https://drive.google.com/file/d/1ezL3fVcc3sQmkfp56uQ12M3UuEsBLMTe/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20376
in ADHESIVES AGE > Vol. 40, N° 2 (02/1997) . - p. 18-23[article]Exemplaires (1)
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