Accueil
Catégories
Ajouter le résultat dans votre panier Affiner la recherche
Etendre la recherche sur niveau(x) vers le bas
Role of anionic chromium species in leather tanning / Kumar Abhinandan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVI, N° 10 (10/2021)
[article]
Titre : Role of anionic chromium species in leather tanning Type de document : texte imprimé Auteurs : Kumar Abhinandan, Auteur ; Jaya Prakash Alla, Auteur ; Deepika Arathanaikotti, Auteur ; Ashok Raj J., Auteur ; N. K. Chandrababu, Auteur Année de publication : 2021 Article en page(s) : p. 368-373 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anions
Cuirs et peaux -- Propriétés organoleptiques
Cuirs et peaux -- Propriétés physiques
Eaux usées -- Analyse
Microscopie électronique à balayage
Taille des particules
Tannage au chromeIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Chrome tanned leathers are definitely unique in comparison with leather made from any other known tanning agents, especially in terms of thermal stability, cost and its reactive mechanism with collagen fibers. In our current studies, self basifying chrome tanning materials masked with different percentages of organic acid were prepared and applied after the de-liming stage of leather processing. This eliminated the need for pickling and basification steps. Tanned leathers resisted shrinkage up to 103 and 105±2°C while conventional chrome tanned leathers resisted up to 108±2°C. Also, interaction of anionic chrome species in tanning was studied. It was observed that the percentage of anionic species in the experimental chrome tanning material was higher than conventional chrome tanning material and the shrinkage temperature achieved by application of experimental tanning material proves that anionic species do involve in tanning. Tanned leathers were crusted and analysed for strength and organoleptic properties. Note de contenu : - EXPERIMENTAL SECTION : Reagents - Preparation of tanning material - Anion exchange chromatography - Particle size - Application as tanning material - Exhaustion studies and wastewater analysis - Scanning electron microscopy (SEM) analysis - Physical strength properties and organoleptic properties
- RESULTS AND DISCUSSION : Speciation of chrome liquor prepared - Analysis of tanning material - Leather application - Scanning electron microscopy analysis - Exhaustion and wastewater analysis - Strength and organoleptic properties
- Table 1 : Process employed for control and experimental chrome application
- Table 2 : Ion exchange chromatography of chrome species
- Table 3 : Comparison of wet blue leathersDOI : https://doi.org/10.34314/jalca.v116i10.4618 En ligne : https://drive.google.com/file/d/1FyFXTw0BUCV9Me9-fysJn1ImFbomD5zu/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36408
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXVI, N° 10 (10/2021) . - p. 368-373[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 23019 - Périodique Bibliothèque principale Documentaires Disponible Shifting sands for haptic packaging / Jos van Geel in EUROPEAN COATINGS JOURNAL (ECJ), N° 3 (03/2021)
[article]
Titre : Shifting sands for haptic packaging : Increasing consumer engagement through engineered coating resins Type de document : texte imprimé Auteurs : Jos van Geel, Auteur ; Jovana Grubic, Auteur ; Remco Okhuijsen, Auteur ; René van Oorschot, Auteur ; Jurgen Scheerder, Auteur Année de publication : 2021 Article en page(s) : p. 40-45 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Agents dispersants (chimie)
Caractérisation
Essais d'adhésion
Revêtements en phase aqueuse
Revêtements organiques
Taille des particules
ToucherIndex. décimale : 667.9 Revêtements et enduits Résumé : Increasingly, coatings can deliver tactile sensations that create a powerful impression in packaging. But developing and formulating these coatings can be a complex process. Here, scientists outline the development, synthesis, and application of a stable water-borne dispersion that adds a sandpaper feel to printing & packaging, and also discuss the technical challenges involved. Note de contenu : - Pinpointing tactile perceptions
- Haptic panels : an essential tool
- Choosing the right technology
- Steering particle size
- Polymeric dispersant to create large particles
- Understanding particle distribution and embedding
- Optimising for printability
- Custom 'feels' for packaging
- Fig. 1 : Polymeric dispersant concentration - particle size response under controlled constant agitator speed
- Fig. 2 : SEM micrograph of the novel resin
- Fig. 3 : Optical profilometry of novel resin, showing a contour plot, profile analysis and 3D visualisation
- Fig. 4 : SEM micrographs of the novel resin showing the surface at an angle, a cross-section of an embedded effect praticle and a scheme explaining the cross-section
- Fig. 5 : 3D visualisation of a 110-line-per-inch quad gravure cylinder with profile trace including a 6, 15, 30, and 50 µm particle to scale
- Fig. 6 : Overview of the behaviours associated with different shear rates
- Fig. 7 : Adhesion testing with scotch 600 and Scotch 810 tape test
- Fig. 8 : Novel resins haptic properties
- Table : Properties of novel resinEn ligne : https://drive.google.com/file/d/1SXxEuf5dFvRI-l3DpqTCMLN3K8Siwyqm/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35851
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 3 (03/2021) . - p. 40-45[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 22757 - Périodique Bibliothèque principale Documentaires Disponible Simple and effective particle-size characterization of opaque emulsions / Lucile Bonnin in SOFW JOURNAL, Vol. 144, N° 10 (10/2018)
[article]
Titre : Simple and effective particle-size characterization of opaque emulsions Type de document : texte imprimé Auteurs : Lucile Bonnin, Auteur ; Burkhard Müller, Auteur ; Thomas Gassenmeier, Auteur ; Reinhard H. H. Neubert, Auteur Année de publication : 2018 Article en page(s) : p. 38-44 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation
Emulsions -- Emploi en cosmétologie
Emulsions -- Stabilité
Evaluation
Granulométrie
Taille des particulesIndex. décimale : 668.5 Parfums et cosmétiques Résumé : Because emulsions are metastable, predicting their stability and phase bahavior is a crucial topic of research. Indeed, emulsions are widely used in the chemical industry and formulators must be able to asses their stability e.g. life-cycle or shelves-life. Although several devices, avaible on the market, are claiming to be able to asses emulsions' stability, they often use laser or ultrasound diffraction techniques which offer limited capabilities for studying opaque emulsions. This study is decribing how the usage of a simple light microscope, already present as a standard equipment in lots of laboratories, can lead to the precise assessment of the particle-size distribution of various cosmetic o/w emulsions. The light microscope was equipped with an objective (40x) having a negative phase-contrast ring. The particle-size characterization by means of phase-contrast microscopy enabled to draw conclusion about the stability over time of two o/w emulsions and to observe the influence of additives on their phase behavior. This novel image analysis method delivered relevant information about the particle-size distribution i.e. stability, of the emulsions at an earlier stage than classical stability tests mathods. Note de contenu : - Cosmetic O/W opaque emulsion : composition and formulation
- Phase-contrast microscopy
- Fig. 1 : Appearance of the o/w opaque cosmetic emulsion
- Fig. 2 : Microstructure of the o/w emulsion forming a gel network (re-drawn from Klein [9])
- Fig. 3 : 40x objective equipped with a negative phase-contrast (Ph 2) mode
- Fig. 4 : Representation of the phase-contrast microscopy base principle
- Fig. 5 : Image analysis process of the o/w emulsion under phase-contrast microscopy
- Fig. 6 : O/W emulsion's photomicrograph after automatic recognition of the particles clustered according to their radius (R) size
- Fig. 7 : O/W emulsions containing either no (a) or 1% w/w additive (b) under phase-contrast light microscopy at t0
- Fig. 8 : Particle-size distribution of the o/w emulsion containing no additive at t0 and after 3 months storage at RT with N(t0)=13873 and N(3 months)= 12661
- Fig. 9 : Particle-size distribution of the o/w emulsion containing 1% w/w of additive at t0 and after 3 months storage at RT with N(t0)= 10689 and N(3 months)= 10229
- Table 1 : Composition of the opaque cosmetic o/w emulsion
- Table 2 : Statistical results of the particle count for both o/w emulsions at t0 and after 3 months storage at RTEn ligne : https://drive.google.com/file/d/1tV5s3MbmMDc_ID0VGKhlM-NRRxS4LjVX/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31328
in SOFW JOURNAL > Vol. 144, N° 10 (10/2018) . - p. 38-44[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 20515 - Périodique Bibliothèque principale Documentaires Disponible Stabilisation of surfactant-free emulsions / Romain Lorentz in PERSONAL CARE EUROPE, Vol. 8, N° 4 (06/2015)
[article]
Titre : Stabilisation of surfactant-free emulsions Type de document : texte imprimé Auteurs : Romain Lorentz, Auteur ; Samar Issa, Auteur ; Gérard Holtzinger, Auteur ; Anne-Marie Pensé-Lhéritier, Auteur Année de publication : 2015 Article en page(s) : p. 41-44 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse sensorielle
Caractérisation
Emulsions -- Emploi en cosmétologie
Emulsions -- Stabilité
Emulsions pickering
Hydrophobie
Silicates
Taille des particulesIndex. décimale : 668.5 Parfums et cosmétiques Résumé : We prepared stable Pickering emulsions of both types (water-in-oil and oil-in-water) with the use at maximum 1.5 wt% of these new multifunctional particles. The obtained results conflrmed that the emulsion type is strongly influenced by the solid particles' wettability which is controlled by the hydrophilic/hydrophobic precursor's ratio. Also, it was shown that the prepared emulsions present a long-term stability for different ranges of oils, either mineral or vegetal, with specific sensory properties due to the 'solid' interface.
On the practical aspect, the controversial precursors, such as aluminium salts and PEG derivatives, are currently replaced to further meet cosmetics consumers' expectations.
Moreover, other innovative applications will also emerge. As an example, the antimicrobial activity of aminopropyl-silicates has recently been investigated.Note de contenu : - Starting materials
- Synthesis process
- Organosilicate particle size
- Infra-red spectroscopy characterisation
- Characterisation of the crystalline structure by X-ray diffraction and scanning electron microscopy (SEM)
- Emulsification characterisation
- Sensory analysis
- TABLE : Stability of emulsions stabilised with hydrophobic organosilicate particlesEn ligne : https://drive.google.com/file/d/1slulLywBXAFjkIHiG8Ls22d8YNgqzyY5/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24298
in PERSONAL CARE EUROPE > Vol. 8, N° 4 (06/2015) . - p. 41-44[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 17254 - Périodique Bibliothèque principale Documentaires Disponible Study of copolymer latexes with bimodal particle size distribution to improve stain resistance : an overview / Tejas M. Shah in PAINTINDIA, Vol. LIX, N° 5 (05/2009)
[article]
Titre : Study of copolymer latexes with bimodal particle size distribution to improve stain resistance : an overview Type de document : texte imprimé Auteurs : Tejas M. Shah, Auteur ; A. K. Dighe, Auteur ; Kalpesh Patel, Auteur ; Chintan Patel, Auteur Année de publication : 2009 Article en page(s) : p. 95-100 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Copolymères en émulsion
Latex
Résistance aux taches
Revêtements:Peinture
Taille des particulesIndex. décimale : 667.9 Revêtements et enduits Résumé : Polymer latexes with bimodal particle size distribution can be prepared by inteoducing small amount of a second seed of polymer particle during semicontinuous emulsions polymérization. The particle size of these miniemulsions depends essentially on th shear force exerted when the monomers are dispersed in water. Incorporating strong acid into a polymer bacbone of bimodal copolymer provides an improvement in stain blocking, bloc resistance, hiding and shear stability. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6658
in PAINTINDIA > Vol. LIX, N° 5 (05/2009) . - p. 95-100[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 011488 - Périodique Bibliothèque principale Documentaires Disponible Surface characteristics of coating layers formed by coating pigments with different particle sizes and size distribution / Sanjay Tyagi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 7, N° 6 (11/2010)
PermalinkSynthesis and characterization of novel water-based poly(urethane-imide) nanodispersions / Baharak Pooladian in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 3 (05/2018)
PermalinkSynthesis and performance of nano-encapsulated phase change materials for leather / Chen Jie in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 101, N° 6 (11-12/2017)
PermalinkSynthesis and properties of novel acrylic polyester hyper-dispersant / Wei Liu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 5 (09/2016)
PermalinkSynthesis, characterisation and application of novel valonia tannin based waterborne polyurethane with natural colour / Yang Liu in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 103, N° 3 (05-06/2019)
PermalinkSynthesis of core–shell-type styrene acrylic latexes with low NMA content and their application in pigment printing pastes / Mesut Eren in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 1 (01/2018)
PermalinkSynthesis of a waterborne melamine resin and its retanning behaviors investigation / Ning Guo-Qiang in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVII, N° 7 (07/2022)
PermalinkSynthesis of xylitol-based hyperbranched polyurethane acrylate and its application in self-matting acrylate coatings / Ruijun Lin in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 5 (09/2023)
PermalinkTanning characteristics and tanning mechanism of nano-SiO2 / Haojun Fan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 88, N° 4 (07-08/2004)
PermalinkThe best for red and yellow / Frank Kleinsteinberg in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 210, N° 4663 (08/2020)
PermalinkThe best for red and yellow- A new additive technology for waterborne iron oxide pigment concentrates / Frank Kleinsteinberg in PAINTINDIA, Vol. LXX, N° 9 (09/2020)
PermalinkThe critical role of particle size distribution in inkjet ink performance / Anne Virden in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 207, N° 4631 (05/2017)
PermalinkThe effect of carbon nanotubes loaded with 2-mercaptobenzothiazole in epoxy-based coatings / Kunal V. Yeole in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 1 (01/2016)
PermalinkThe effect of particle size on the characteristics and performance of emulsion binders and topcoats / T. J. Braithwaite in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 61 et 62 (Années 1977 et 1978)
PermalinkThe effect of particle size on the characteristics and performance of emulsion binders and topcoats / T. J. Braithwaite in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 62, N° 4 (07-08/1978)
PermalinkThe nano building blocks approach for modification of surface properties of nanocomposite inorganic-organic films / Jana Pagacova in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 4 (07/2022)
PermalinkThe particle size effect of MALPB-DEA dispersions on their anticorrosion performances as waterborne coatings on galvanized sheet / Jinwei Wang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 8, N° 1 (01/2011)
PermalinkThe processing behavior of liquid Sn/molten polyethylene during internal mixing / G. Zhang in INTERNATIONAL POLYMER PROCESSING, Vol. XXIX, N° 2 (05/2014)
PermalinkThermal conductivity of polypropylene composites with combined boron nitride fillers / W. Cheewawuttipong in INTERNATIONAL POLYMER PROCESSING, Vol. XXIX, N° 2 (05/2014)
PermalinkThermal management and intensive orange / Robert Schädel in KUNSTSTOFFE INTERNATIONAL, Vol. 112, N° 5 (2022)
Permalink