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Analysis of transdermal absorptivity promoted by facial mask products on the basis of transdermal absorption data of multiple systems (Part 1) / X. Liu in SOFW JOURNAL, Vol. 144, N° 12 (12/2018)
[article]
Titre : Analysis of transdermal absorptivity promoted by facial mask products on the basis of transdermal absorption data of multiple systems (Part 1) Type de document : texte imprimé Auteurs : X. Liu, Auteur ; Y. Dai, Auteur ; J. Zhao, Auteur ; Yi Chen, Auteur ; H. Li, Auteur Année de publication : 2018 Article en page(s) : p. 26-29 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Absorption cutanée
Dermo-cosmétologie
Masques (cosmétique)
Peau -- Soins et hygiène
Pénétration (physique)
Vitamine CIndex. décimale : 668.5 Parfums et cosmétiques Résumé : This thesis selected ascorbic acid as a symbol component, utilized Franz diffusion tank facility and pig ear skin to simulate the transdermal absorption environment and conditions, and employed high performance liquid chromatography to determine the ascorbic acid content and to discover the effect of four different types of cosmetics systems (facial mask (A), lyophilized essence (B1), combination of lyophilized essence and facial mask (B2) and essence (C)) on its transdermal absorption. It was found that the total amount of transdermal absorption of ascorbic acid within 4 hours was B2 > A > B1 > C, in which B2 reached 0.413 µg.mm-2, and the transdermal absorptivity was B2 > A > B1 > C, in which B2 even reached 0.98%. The results showed that the mask could promote the transdermal absorption of ascorbic acid, especially when the lyophilized essence worked together with the mask, the performance and effect of transdermal absorption were more significant, which could provide good suggestions for application in the use of product. Note de contenu : - Definition of transdermal absorption and factors affecting transdermal absorptivity
- Research on the transdermal absorption of ascorbic acid in four kinds of skin care product systems
- Fig. 1 : Cumulative penetration amount of ascorbic acid in group A, B1, B2, C during 0.5 h-4 h
- Fig. 2 : Penetration ratio of ascorbic acid in group A, B1, B2, C during 0.5 h-4 hEn ligne : https://drive.google.com/file/d/1mAG0Gv0ivPcKsxxiqZjvRBCguXz-1bbl/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31512
in SOFW JOURNAL > Vol. 144, N° 12 (12/2018) . - p. 26-29[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20448 - Périodique Bibliothèque principale Documentaires Disponible Carbon black reinforced thermoplastic vulcanizates based on high impact polystyrene/styrene-butadiene-styrene block copolymer/styrene-butadiene rubber blends / S. Li in INTERNATIONAL POLYMER PROCESSING, Vol. XXIX, N° 5 (11/2014)
[article]
Titre : Carbon black reinforced thermoplastic vulcanizates based on high impact polystyrene/styrene-butadiene-styrene block copolymer/styrene-butadiene rubber blends Type de document : texte imprimé Auteurs : S. Li, Auteur ; D.-Y. Wei, Auteur ; J. Zhao, Auteur ; Z.-B. Wang, Auteur Année de publication : 2014 Article en page(s) : p. 594-601 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alliages polymères -- propriétés mécaniques
Caoutchouc
Copolymère styrène butadiène styrène
Copolymères séquencés
Microstructures
Morphologie (matériaux)
Noir de carbone
Polystyrène choc
ThermoplastiquesUne matière thermoplastique désigne une matière qui se ramollit (parfois on observe une fusion franche) d'une façon répétée lorsqu'elle est chauffée au-dessus d'une certaine température, mais qui, au-dessous, redevient dure. Une telle matière conservera donc toujours de manière réversible sa thermoplasticité initiale. Cette qualité rend le matériau thermoplastique potentiellement recyclable (après broyage). Cela implique que la matière ramollie ne soit pas thermiquement dégradée et que les contraintes mécaniques de cisaillement introduites par un procédé de mise en forme ne modifient pas la structure moléculaire.
VulcanisationIndex. décimale : 668.9 Polymères Résumé : Thermoplastic vulcanizates (TPVs) based on high impact polystyrene (HIPS)/styrene-butadiene-styrene block copolymer (SBS)/styrene-butadiene rubber (SBR) blends were prepared by dynamic vulcanization, with the TPVs being reinforced by carbon black (CB). Experimental results indicated that mechanical properties of dynamically vulcanized HIPS/SBS/SBR blends were enhanced remarkably by the incorporation of CB. The fracture surface morphology of the reinforced HIPS/SBS/SBR/CB TPVs was relatively flat. The Mullins effect could be observed in the stress-strain curves of HIPS/SBS/SBR TPVs and HIPS/SBS/SBR/CB TPVs during the uniaxial loading-unloading cycles. Compared with HIPS/SBS/SBR TPVs, CB-reinforced HIPS/SBS/SBR TPVs had the relatively higher stress, residual strain and internal friction loss. Note de contenu : - EXPERIMENTAL : 1. Materials - 2. Preparation of Dynamically Vulcanized HIPS/SBS/SBR/CB Blends - 3. Characterization
- RESULTS AND DISCUSSION : 1. Influence of CB on the Mechanical Properties of the Dynamically Vulcanized HIPS/SBS/SBR Blends - 2. Morphology and Microstructure of Dynamically Vulcanized HIPS/SBS/SBR Blends and HIPS/SBS/SBR/CB Blends - 3. Mullins Effect of Dynamically Vulcanized HIPS/SBS/SBR Blends and HIPS/SBS/SBR/CB BlendsDOI : 10.3139/217.2917 En ligne : https://drive.google.com/file/d/1lB_ZjRQsEJyCrKFyqvsGd0sGI-aLuiu1/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22225
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Code-barres Cote Support Localisation Section Disponibilité 16633 - Périodique Bibliothèque principale Documentaires Disponible Preparing of homogeneous solution of ultrahigh molecular weight PAN / B. Zhang in INTERNATIONAL POLYMER PROCESSING, Vol. XX, N° 1 (03/2005)
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Titre : Preparing of homogeneous solution of ultrahigh molecular weight PAN Type de document : texte imprimé Auteurs : B. Zhang, Auteur ; J. Zhao, Auteur ; Y. Zhang, Auteur ; N. Yang, Auteur ; C. Wu, Auteur Année de publication : 2005 Article en page(s) : p. 3-7 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 668.9 Polymères Résumé : Based on torque measurement via a device specially developed by our group, the shearing torque of the mixture of UHMWPAN with swelling agent or solvent during shearing process at various temperatures could be recorded as torque-temperature diagram in the swelling and dissolution process. The temperature where the torque of the mixture began to rise as showed in the torque-temperature diagram was considered as key parameter. UHMWPAN could be swollen fully and the homogeneous solution could be easily prepared if the mixture was heated progressively and was kept for a certain period of time at the every constant temperature. In the case of UHMWPAN (content >-), the parameters of the swelling and dissolution process were finally obtained. DOI : 10.3139/217.1848 En ligne : https://drive.google.com/file/d/1qN_F7L8nKup2P22k1Fh1f0x9gsjo7Alc/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3083
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Code-barres Cote Support Localisation Section Disponibilité 000687 - Périodique Bibliothèque principale Documentaires Disponible