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Preparation of polymer/silica composite antiglare coatings on poly(ethylene terphathalate) (PET) substrates / Chao-Ching Chang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 9, N° 5 (09/2012)
[article]
Titre : Preparation of polymer/silica composite antiglare coatings on poly(ethylene terphathalate) (PET) substrates Type de document : texte imprimé Auteurs : Chao-Ching Chang, Auteur ; Chien-Ming Chen, Auteur ; Feng-His Hwang, Auteur ; Ching-Chung Chen, Auteur ; Liao-Ping Cheng, Auteur Année de publication : 2012 Article en page(s) : p. 561-568 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Dureté (matériaux)
Particules (matières)
Polyacrylates
Polyéthylène téréphtalate
Revêtement antireflet:Peinture antireflet
Revêtements -- Séchage sous rayonnement ultraviolet
SiliceLa 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.Index. décimale : 667.9 Revêtements et enduits Résumé : 3-(Trimethoxysilyl) propyl methacrylate and fluoroalkylsilane modified silica particles were UV-cured with the multifunctional crosslinking agent, dipentaerythritol hexaacrylate (DPHA), to prepare antiglare (AG) coatings that exhibit high hardness. Modified silica was used to impart surface roughness whereas DPHA was used to provide hardness and adhesiveness. The formed AG coatings were characterized in terms of topological, optical, and mechanical properties. It was found that with the increase of DPHA content in the coatings, the surface roughness and haze decreased while the gloss and clarity increased. For samples containing 40 and 50 wt% DPHA, the optical properties are comparable to commercial AG products for flat panel display and touch panels. These prepared coatings also demonstrate high hardness of 5–6H and 100% adhesion on poly(ethylene terphathalate) substrates. Note de contenu : - EXPERIMENTAL : Materials - Preparation of surface-modified silica sol - Preparation of antiglare coatings - Characterization
- RESULTS AND DISCUSSION : Chemical structure analysis by FTIR - TEM and SEM imaging - Optical performance of the AG coatings - Hardness and adhesion of the AG coatingsDOI : 10.1007/s11998-011-9392-4 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-011-9392-4.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16027
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 9, N° 5 (09/2012) . - p. 561-568[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14190 - Périodique Bibliothèque principale Documentaires Disponible Preparation, properties and application of waterborne hyydroxyl-functional polyurethane/acrylic emulsions in two-component coatings / Guozhang Ma in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 3 (05/2015)
[article]
Titre : Preparation, properties and application of waterborne hyydroxyl-functional polyurethane/acrylic emulsions in two-component coatings Type de document : texte imprimé Auteurs : Guozhang Ma, Auteur ; Taotao Guan, Auteur ; Caiying Hou, Auteur ; Jianbing Wu, Auteur ; Gang Wang, Auteur ; Xuan Ji, Auteur ; Baojun Wang, Auteur Année de publication : 2015 Article en page(s) : p. 505-512 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésion
Caractérisation
Copolymère uréthane acrylique
Copolymères en émulsion
Dureté (matériaux)
Matériaux hybrides
Mouillabilité
Revêtements -- Propriétés mécaniques:Peinture -- Propriétés mécaniques
Revêtements bi-composant:Peinture bi-composantIndex. décimale : 667.9 Revêtements et enduits Résumé : A serious of waterborne hydroxyl-functional polyurethane/acrylic (PUA) emulsions for two-component coatings was prepared by copolymerizing different weight ratios of hydroxyethyl acrylate (HEA)/butyl acrylate (BA) with methyl methacrylate and acrylic-terminated polyurethane dispersion via an emulsion process. The results showed that increasing the weight ratio of HEA/BA led to a decrease in the average particle sizes and a narrowing in the particle size distribution, but an increase in the viscosity of their emulsions. Meanwhile, their films showed increased thermal resistance, adhesion on substrate, tensile strength, and hardness, but decreased water resistance and enhanced wettability. When the emulsions were applied in two-component coatings, their water resistance was greatly improved and the wettability was reduced; in addition, their glass transition temperature, thermal stability, adhesion on substrate, tensile strength, and hardness were further increased. It was suggested that hydroxyl groups of PUA can not only engage in the intramolecular and/or intermolecular hydrogen bonding, but also form covalently crosslinked networks with polyisocyanate in their films. Note de contenu : - EXPERIMENTAL : Materials - Preparation of PUA hybrid emulsions - Application in two-component coatings and preparation of their films - Measurements and characterization
- RESULTS AND DISCUSSION : The performance of PUA hybrid emulsions - The FTIR and thermal behaviors of the films - The water wettability and water absorption of the films - The adhesion of the coatings - The mechanical properties and hardness of the filmsDOI : 10.1007/s11998-014-9647-y En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-014-9647-y.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24174
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Code-barres Cote Support Localisation Section Disponibilité 17244 - Périodique Bibliothèque principale Documentaires Disponible Production of thermoplastic elastomers based on recycled PE and ground tire rubber : morphology, mechanical properties and effect of compatibilizer addition / Y.-H. wang in INTERNATIONAL POLYMER PROCESSING, Vol. XXXIII, N° 4 (08/2018)
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Titre : Production of thermoplastic elastomers based on recycled PE and ground tire rubber : morphology, mechanical properties and effect of compatibilizer addition Type de document : texte imprimé Auteurs : Y.-H. wang, Auteur ; Y.-K. Chen, Auteur ; Denis Rodrigue Année de publication : 2018 Article en page(s) : p. 525-534 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alliages polymères
Calorimétrie
Caoutchouc
Densité
Dureté (matériaux)
Elastomères thermoplastiques -- Extrusion
Elastomères thermoplastiques -- Moulage par injection
Elastomères thermoplastiques -- Propriétés mécaniques
Essais de résilience
Matières plastiques -- Moulage par injection
Matières plastiques -- Recyclage
ThermogravimétrieIndex. décimale : 668.4 Plastiques, vinyles Résumé : Constant growth of waste polymers around the world leads to several environmental problems. This is why solutions to reuse these high amounts of materials available must be developed. In this work, highly filled (up to 90 wt.%) recycled polyethylene (R-PE)/ground tire rubber (GTR) thermoplastic elastomers were prepared by extrusion compounding and injection molding. To improve on processability and overall properties, two copolymers (Engage 8180 and Vestenamer 8012) were added as compatibilizers for comparison. SEM results showed that compatibilizer addition changed the blend morphology. In all cases, the mechanical properties in tension and flexion decreased with GTR addition. It was also observed that the addition of a copolymer improved on some properties (such as elongation at break), but Engage 8180 showed better compatibilization effect than Vestenamer 8012 which was confirmed from SEM analysis, while other properties (tensile strength, Young's and flexural modulus) were reduced due to lower GTR and compatibilizer moduli. For impact strength, negligible variation was observed below 40 wt.% GTR. However, the samples did not break for GTR contents above 60 wt.%. Density increased with GTR content, while Shore A and D hardness decreased. Overall, the addition of a compatibilizer mostly enabled to produce compounds at higher GTR contents (above 70 wt.%). From the result obtained, it can be concluded that recycled materials can be used to produce blends with reasonable quality for automotive, packaging and construction applications since the mechanical properties can be optimized via formulation over a very wide range of GTR (0–90 wt.%). Note de contenu : - EXPERIMENTAL : Materials - Sample preparation - Morphology observation - Tension - Flexion - Notched Charpy impact - Density and hardness - Thermogravimetric analysis (TGA) - Differential scanning calorimetry (DSC)
- RESULTS AND DISCUSSION : DSC and TGA analysis of the R-PE - Morphology - Mechanical properties - Physical propertiesDOI : 10.3139/217.3544 En ligne : https://www.degruyter.com/document/doi/10.3139/217.3544/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30892
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXIII, N° 4 (08/2018) . - p. 525-534[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20077 - Périodique Bibliothèque principale Documentaires Disponible Properties and applications of nanosilica-modified tooling prepregs / J. M. Nelson in SAMPE JOURNAL, Vol. 49, N° 1 (01-02/2013)
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Titre : Properties and applications of nanosilica-modified tooling prepregs Type de document : texte imprimé Auteurs : J. M. Nelson, Auteur ; A. M. Hine, Auteur ; D. P. Goetz, Auteur ; P. Sedgwick, Auteur ; R. H. Lowe, Auteur ; E. Rexeisen, Auteur ; R. E. King, Auteur ; C. Aitken, Auteur ; Q. Pham, Auteur Année de publication : 2013 Article en page(s) : p. 7-17 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Composites à fibres de carbone -- Propriétés mécaniques
Dureté (matériaux)
Epoxydes
Essais (technologie)
Hors autoclave (technologie)
Matériaux -- Imprégnation
Nanoparticules
Outillage
Résistance des matériaux
SiliceLa 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.Index. décimale : 668.4 Plastiques, vinyles Résumé : Recently, 3M has developed a new nanosilica-modified tooling prepreg. Fortified tooling prepreg 140°F epoxy (FTP 140F) is an out-of autoclave/autoclave-curable epoxy system which cures at low temperature and is suitable for high temperature cure cycles. This paper uses this system to examine the effect of incorporating nanosilica into tooling-specific prepreg resins on both resin and carbon fabric composites properties. Nanosilica modification using spherical nanoscale silica produces desirable changes in matrix coefficient of thermal expansion, cure shrinkage, cure exotherm, and hardness, as well as resin mechanical properties including modulus and fracture toughness. Surface hardness is quantified by both macroscale and nanoscale testing. The effect on thermal distortion of curved composite laminates is illustrated. Tooling specific enhancements include improved tool design flexibility, improved tool life, and improved dimensional stability. Real world applications of the materials are featured. Note de contenu : - The development of 3M fortified tooling prepreg 140F epoxy FTP 140F
- EXPERIMENTAL : Materials and resin sample preparation - Carbon fiber composite sample preparation
- RESULTS AND DISCUSSION : Summary and neat resin and composite properties
1. INCREASED DESIGN FLEXIBILITY : Improved tolerances - Reduced springback
2. IMPROVED MANUFACTURING EFFICIENCY : Improved scratch resistance - Exotherm reduction - Efficient tool build
3. TOOL LIFE IMPROVEMENT : Resistance to microcraking - Resistance to delamination - Enhanced flexural modulus after thermal cycling
- APPLICATIONS : Fortified tooling prepreg bismaleimide (FTP-BMI)En ligne : http://www.nxtbook.com/nxtbooks/sampe/journal_20130102/index.php?startid=51#/8 Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17775
in SAMPE JOURNAL > Vol. 49, N° 1 (01-02/2013) . - p. 7-17[article]Propriétés texturales des produits de maquillage / Caroline Chavigny in PARFUMS COSMETIQUES ACTUALITES, N° 161 (11/2001)
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Titre : Propriétés texturales des produits de maquillage Type de document : texte imprimé Auteurs : Caroline Chavigny, Auteur Année de publication : 2001 Article en page(s) : p. 78-80 Langues : Français (fre) Catégories : Cosmétiques -- Texture
Dureté (matériaux)
Maquillage
Produits de beauté -- Texture
Rhéologie
Rouges à lèvres -- TextureIndex. décimale : 668.5 Parfums et cosmétiques Résumé : Stable Micro Systems a mis au point différents tests d'analyse des propriétés texturales des produits de maquillage, ce qui donne au fabricant des informations précieuses. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15015
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Code-barres Cote Support Localisation Section Disponibilité 009744 - Périodique Bibliothèque principale Documentaires Disponible PermalinkRecent progress of functional coating materials and technologies for polycarbonate / Namil Kim in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 1 (01/2017)
PermalinkRelca® HY-288 : water-based hybrid for coatings with superior stain resistance / Sara Roig in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 210, N° 4660 (04/2020)
PermalinkResearch and waterjet technology lead to advanced materials development / Steve Bowen in JEC COMPOSITES MAGAZINE, N° 80 (04/2013)
PermalinkDes résines alkydes hydrides aux propriétés ignifugeantes pour la formulation de revêtements / Damien Le Borgne in L'ACTUALITE CHIMIQUE, N° 484-485 (05-06/2023)
PermalinkRobotic painting : mimicking human applicators / Karan Bansal in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 4 (07/2023)
PermalinkRobust and flexible transparent protective film fabricated with an ambient-curable hybrid resin / Haitao Liu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 4 (07/2021)
PermalinkSelf-crosslinkable urethanes and urethane/acrylics / Ronald Tennebroek in EUROPEAN COATINGS JOURNAL (ECJ), N° 11/97 (11/1997)
PermalinkPermalinkSimplification of interior latex paint using biopolymer to replace rheological additives and calcium carbonate extender / Lei Jong in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 6 (11/2021)
PermalinkSimultaneous tracking of hardness, reactant conversion, solids concentration, and glass transition temperature in thermoset polyurethane coatings / Ting Wang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 2 (03/2021)
PermalinkSmall and smaller- Incorporating nanosilica technology of different particle size for new improvements in UV-curable coatings / Marco Heuer in PAINTINDIA, Vol. LXIV, N° 6 (06/2014)
PermalinkSmall particles for the protection of metal / Peter Greenwood in EUROPEAN COATINGS JOURNAL (ECJ), (12/2023)
PermalinkSMS improves anti-fouling performance in cuprous oxide-based coatings / Michael Guenther in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 208, N° 4645 (10/2018)
PermalinkLa société Emac mise sur les compounds TPE / Jean-Philippe Forest in CAOUTCHOUCS & PLASTIQUES, N° 757 (03/1997)
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