Clinical studies in Chinese subjects investigating the tolerance and soothing efficacy of a cream and balm containing 4-t-butylcyclohexanol on the sensitivity of facial skin / Ariadna Ortiz Brugués in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 45, N° 1 (02/2023)  

[article]  inINTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 45, N° 1 (02/2023) . - p. 29-37 Titre : Clinical studies in Chinese subjects investigating the tolerance and soothing efficacy of a cream and balm containing 4-t-butylcyclohexanol on the sensitivity of facial skin Type de document : document électronique Auteurs : Ariadna Ortiz Brugués, Auteur ; Lara Claude Braeuer, Auteur ; Jean-Baptiste Grieu, Auteur ; Ying Zhang, Auteur Année de publication : 2023 Article en page(s) : p. 29-37 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : 4-t-butylcyclohexanol Baumes Cosmétiques Dermo-cosmétologie Peau -- Soins et hygiène Peau asiatique Sensibilité cutanée Visage -- Soins et hygiène Index. décimale : 668.5 Parfums et cosmétiques Résumé : - Introduction : Asian subjects are particularly prone to skin sensitivity. We developed a facial cream and balm containing 4-t-butylcyclohexanol to provide skin comfort and a soothing effect for sensitive skin. - Objectives : Assess the dermatological and ophthalmological tolerance and efficacy in improving skin sensitivity of face cream and balm under normal conditions of use by a population known to be particularly prone to this problem. - Methods : In a monocentric non-randomized open trial, the cream or balm was applied twice daily to the face, neck, and eye contour of 33 stinger subjects with hypersensitive skin (22-63 years old). Assessments included dermatological and ophthalmological physical and functional signs on Day 1 (D1), D8, and D22, and cosmetic acceptability, cutaneous sensitivity according to a stinging test and the sensitive scale, and the soothing efficacy according to a questionnaire on D22. - Results : The cream and balm were very well tolerated. Immediately after application, subjects reported a reduction in the skin's hypersensitivity (93.9% of subjects for the cream and 81.8% for the balm), skin redness (90.9% of subjects for the cream and 87.9% for the balm), sensations of tightness (93.9% for the cream and 97.0% for the balm), and discomfort sensations (93.9% for the cream and 87.9% for the balm). After 21 days, the application of the cream and balm decreased the stinging scores by 65% and 41%, respectively, with 94% and 77% of subjects showing an improvement, respectively. The sensitivity scale questionnaire indicated that the cream and balm significantly and profoundly decreased all negative signs, for example, irritability, stinging, general discomfort, redness, and dryness on D22 compared to D1. On D22, all 15 parameters recorded were improved by 89%–100% by the cream and by 74%–100% by the balm. The majority (90.9% and 96.8% of subjects using the cream and balm, respectively) of the subjects noticed positive changes in their skin condition after using the product for 21 days. - Conclusions : The cream and balm were very well-tolerated. This study demonstrated that both products controlled and markedly reduced skin hypersensitivity in Asian subjects, with an immediate and lasting skin soothing and repairing effect over 21 days. Note de contenu : - MATERIALS AND METHODS : Test formulations - Subjects - Treatment and evaluation visits - Evaluations - RESULTS : Dermatological and ophthalmological tolerance - Efficacy endpoints DOI : https://doi.org/10.1111/ics.12822 En ligne : https://drive.google.com/file/d/19HbQq9f8ZWvdcEcjZB0IuVotmZZT3x1O/view?usp=share [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38817 [article]

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Effect of heat treatment at 1300°C on W coating prepared by double-glow plasma on carbon/carbon composite / Ying Zhang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 6, N° 2 (06/2009)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 6, N° 2 (06/2009) . - p. 237-241 Titre : Effect of heat treatment at 1300°C on W coating prepared by double-glow plasma on carbon/carbon composite Type de document : texte imprimé Auteurs : Ying Zhang, Auteur ; Dan Fang, Auteur ; Wangping Wu, Auteur ; Chen Liangbing, Auteur ; Zhaofeng Chen, Auteur Année de publication : 2009 Article en page(s) : p. 237-241 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Composites à fibres de carbone Revêtements:Peinture Technique des plasmas Index. décimale : 667.9 Revêtements et enduits Résumé : W-coated carbon/carbon composite has been considered as an attractive ITER plasma facing material in fusion devices. In this paper, W coating was prepared on the carbon/carbon composite substrate by double-glow plasma method using pure W as target. Argon was input into the chamber as the plasma and the reactive gas. W-coated carbon/carbon composite was heat-treated in vacuum furnace at 1300°C for 1 h. Phase and microstructure of W coating were examined by X-ray diffraction and scanning electron microscopy, respectively. The chemical composition of W coating was analyzed by energy dispersive spectroscopy. The micro-hardness of the W coating was estimated by nano-indentation instrument. The results indicated that a continuous and dense W-modified layer could be successfully coated on the carbon/carbon composite surface by double-glow plasma method. W coating completely reacted with C to form WC at 1300°C. WC almost completely diffused into the carbon/carbon composite after heat treatment. The great decrease in elemental W on the carbon/carbon composite surface after heat treatment led to a significant reduction in micro-hardness. DOI : 10.1007/s11998-008-9109-5 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-008-9109-5.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5624 [article]

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Highly improved UV-shielding and mechanical properties of UV-curable epoxy acrylate nanocomposites by incorporating functionalized aramid nanofibers / Ying Wang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 1 (01/2024)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 21, N° 1 (01/2024) . - p. 307-317 Titre : Highly improved UV-shielding and mechanical properties of UV-curable epoxy acrylate nanocomposites by incorporating functionalized aramid nanofibers Type de document : texte imprimé Auteurs : Ying Wang, Auteur ; Yuexin Luo, Auteur ; Yuankai Pan, Auteur ; Changmei Sun, Auteur ; Ying Zhang, Auteur ; Chunnuan Ji, Auteur ; Rongjun Qu, Auteur Année de publication : 2024 Article en page(s) : p. 307-317 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Aramides Les polyamides aromatiques, ou aramides, sont une classe de matériaux résistant à la chaleur et/ou présentant de bonnes propriétés mécaniques. Ils ne peuvent être utilisés que comme fibres, qui servent surtout à la fabrication de matériaux composites, en renfort de matrices. Le mot-valise "aramide" vient de la contraction de l'anglais aromatic polyamide. Les fibres sont obtenues par filage (étirage au travers d'une filière) à partir d'une dissolution. Les chaînes moléculaires sont fortement orientées dans le sens de l'axe de la fibre, de sorte que les forces des interactions moléculaires peuvent être exploitées pour la résistance thermique et/ou mécanique. Caractérisation Charges (matériaux) Composés organiques -- Synthèse Copolymère époxy acrylate Fibre aramide Matériaux -- Propriétés fonctionnelles Matériaux hybrides Nanofibres Revêtements -- Propriétés mécaniques Revêtements -- Séchage sous rayonnement ultraviolet Revêtements organiques Index. décimale : 667.9 Revêtements et enduits Résumé : Introducing nanofillers into UV-curable coatings can not only effectively improve the performance of the coating but also impart new functions to the film. Herein, methacrylate-functionalized aramid nanofibers (mANFs) were constructed by a bottom-up approach, and their influence on the performance of UV-curable epoxy acrylate (EA) coatings was investigated. The microstructure of the EA/mANF nanocomposite was studied using X-ray diffraction and transmission electron microscopy (TEM), which confirmed the homogeneous distribution of mANFs in the matrix. The effect of mANFs on the curing kinetics was investigated. The result showed that the photopolymerization rate and final C = C bond conversion would not be adversely affected until more than 0.1 wt% mANFs were added. The UV–Vis analyses showed that the EA/mANF films maintained high transmittance in the visible light region and exhibited improved UV-shielding performance. The mechanical characteristics of EA/mANF films were significantly improved by mANFs because of strong interactions such as π–π interactions, hydrogen bonds, and chemical bonds between the matrix and mANFs. For the nanocomposite containing 0.025 wt% mANFs, tensile strength and strain at break increased by 53% and 446%, respectively, compared to neat EA. Thus, the introduction of mANFs considerably improved the mechanical performance of UV-curable EA films and expanded their application in the field of UV shielding. Note de contenu : - EXPERIMENTAL : Chemical and materials - Synthesis of methacrylate-functionalized ANFs (mANFs) - Synthesis of UV-curing EA/mANF nanocomposites - Characterization - RESULTS : Characterization of mANFs - Structure and morphological investigation of EA/mANF nanocomposites - Curing kinetics and transmittances investigation of EA/mANF nanocomposites - Mechanical properties of EA/mANF nanocomposites DOI : https://doi.org/10.1007/s11998-023-00822-2 En ligne : https://drive.google.com/file/d/1Hvchg-CTDPRYRSVnD0cvIjtvA6Kevz6o/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40449 [article]

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Ir coating prepared on Mo substrate by double glow plasma / Wang Liangbing in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 6, N° 4 (12/2009)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 6, N° 4 (12/2009) . - p. 517-522 Titre : Ir coating prepared on Mo substrate by double glow plasma Type de document : texte imprimé Auteurs : Wang Liangbing, Auteur ; Zhaofeng Chen, Auteur ; Pingze Zhang, Auteur ; Wangping Wu, Auteur ; Ying Zhang, Auteur Année de publication : 2009 Article en page(s) : p. 517-522 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 667.9 Revêtements et enduits Résumé : Dense and adherent Ir coating was obtained on the surface of the Mo substrate by double glow plasma, which had a deposition chamber and two cathodes. Argon gas was used as the working gas. The bias voltage of Ir target and Mo substrate were -800 and -300 V, respectively. The chamber pressure was 35 Pa. Microstructure of the Ir coating was observed by scanning electron microscopy. The Ir coating had a polycrystalline structure with preferential growth orientation of (220) crystal plane. The deposition rate was ~3.5 µm/h. The good adhesion resulted from the buffer layer between the Mo substrate and the Ir coating. The buffer layer, a combined Ir and Mo, was formed at the beginning of the deposition. The Mo concentration distributed gradiently along the depth of the buffer layer. DOI : 10.1007/s11998-008-9123-7 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-008-9123-7.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7695 [article]

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Reversible thermochromic performance of cresol red-boric acid system loaded on fibrous mesoporous silica microspheres coating material / Tinting Yu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 5 (09/2021)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 18, N° 5 (09/2021) . - p. 1389-1399 Titre : Reversible thermochromic performance of cresol red-boric acid system loaded on fibrous mesoporous silica microspheres coating material Type de document : texte imprimé Auteurs : Tinting Yu, Auteur ; Liang Cheng, Auteur ; Haocheng Cai, Auteur ; Geng Li, Auteur ; Xu Wang, Auteur ; Linghan Kong, Auteur ; Jianbo Zhan, Auteur ; Hao Wang, Auteur ; Ying Zhang, Auteur ; Zhenhua Yu, Auteur ; Han Zheng, Auteur Année de publication : 2021 Article en page(s) : p. 1389-1399 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Borique, Acide Caractérisation Colorants Matériaux fibreux Matériaux mésoporeux Microsphères Morphologie (matériaux) Revêtements Rouge de Crésol Silice La silice est la forme naturelle du dioxyde de silicium (SiO2) qui entre dans la composition de nombreux minéraux. La silice existe à l'état libre sous différentes formes cristallines ou amorphes et à l'état combiné dans les silicates, les groupes SiO2 étant alors liés à d'autres atomes (Al : Aluminium, Fe : Fer, Mg : Magnésium, Ca : Calcium, Na : Sodium, K : Potassium...). Les silicates sont les constituants principaux du manteau et de l'écorce terrestre. La silice libre est également très abondante dans la nature, sous forme de quartz, de calcédoine et de terre de diatomée. La silice représente 60,6 % de la masse de la croûte terrestre continentale. Thermochromie Index. décimale : 667.2 Colorants et pigments Résumé : In this study, the fibrous mesoporous silica F-SiO2 was functionalized with 3-aminopropyltriethoxysilane (APTES). The reversible thermochromic composites of fibrous mesoporous silica (F-SiO2) and amino group-modified fibrous mesoporous silica (F-SiO2-NH2) microspheres loaded with cresol red-boric acid (CR-BA) were termed as S2 (F-SiO2/CR-BA) and SN2 (F-SiO2-NH2/CR-BA), respectively. The materials obtained were characterized by infrared spectroscopy, transmission electron microscopy, scanning and transmission electron microscopy, differential scanning calorimetry, and thermogravimetric analysis. The fibrous morphology of this rigid carrier was maintained after loading with the CR-BA composite system. Owing to the APTES modification, the F-SiO2-NH2/CR-BA composites underwent more severe color changes than the F-SiO2/CR-BA composites. In addition, the F-SiO2-NH2/CR-BA composites can recover the original color in only 210 s, illustrating excellent reversibility. Note de contenu : - MATERIALS AND METHODS : Materials - Preparation of fibrous mesoporous silica microspheres (F-SiO2) - Amino group-modified fibrous mesoporous silica microspheres (F-SiO2-NH2) - Preparation of F-SiO2 and F-SiO2-NH2 with cresol red-boric acid - Preparation of F-SiO2 and F-SiO2-NH2 with cresol red - Thermochromic properties of synthesized composite microspheres - Characterization - RESULTS AND DISCUSSION : Characterization of the synthesized mesoporous silica microspheres - The effect of the content of silica microspheres on thermochromic performance of synthesized composite microsphere - Color recovery performance of synthesized composite microspheres - The effect of BA on thermochromic performance of synthesized composite microspheres - Table 1 : The recipes of F-SiO2/CR-BA and F-SiO2-NH2/CR-BA composite microspheres series DOI : https://doi.org/10.1007/s11998-021-00504-x En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00504-x.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36441 [article]

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