Competitive advantages of flexibility / Hans Joachim Jacob in EUROPEAN COATINGS JOURNAL (ECJ), (09/2024)  

[article]  inEUROPEAN COATINGS JOURNAL (ECJ) > (09/2024) . - p. 36-40 Titre : Competitive advantages of flexibility : Innovative process engineering solutions for the production of coatings Type de document : texte imprimé Auteurs : Hans Joachim Jacob, Auteur Année de publication : 2024 Article en page(s) : p. 36-40 Langues : Anglais (eng) Catégories : Changement organisationnel Construction modulaire Dispersions et suspensions -- Appareils et matériels Enrobage (technologie) Malaxeurs et mélangeurs Revêtements -- Appareils et matériels Technique de la production Index. décimale : 667.9 Revêtements et enduits Résumé : In the production of coatings and paints, flexibility has become a crucial factor : Users must be able to manufacture a wide range of batch sizes as well as many products and product variations to respond quickly to new market conditions or changed regulatory guidelines. Processes can be designed flexibly and be future proofed through the modularisation of process technology at a system and machine level, and the use of innovative mixing and dispersion technologies. Note de contenu : - High flexibility and homogeneous mixing results with a jetstream mixer - Flexible production of seed and tablet coatings - Flexibility through modularisation - Flexible production of wood coatings - More flexibility through smaller batches - Multipurpose systems in the process vessel - Investment security with adaptabler inline machines - Flexible modular set-up for long-term success - Table 1 : Process limes and output quantities of a twin tank plant based on the inline disperser in the production of wall paint with different batch sizes En ligne : https://drive.google.com/file/d/18SudVeQr813KArlpl7mG2J34jKSEY656/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41401 [article]

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Dispersing with a lighter touch / Olivier Dudak in PAINTINDIA, Vol. LXVII, N° 8 (08/2017)  

[article]  inPAINTINDIA > Vol. LXVII, N° 8 (08/2017) . - p. 60-64 Titre : Dispersing with a lighter touch Type de document : texte imprimé Auteurs : Olivier Dudak, Auteur ; Dominik Seeger, Auteur Année de publication : 2017 Article en page(s) : p. 60-64 Langues : Anglais (eng) Catégories : Charges (matériaux) Coût -- Contrôle Dispersions et suspensions -- Appareils et matériels Matériaux -- Allègement Microsphères Mouillage (chimie des surfaces) Revêtement poudre -- Additifs:Peinture poudre -- Additifs Index. décimale : 667.9 Revêtements et enduits Résumé : With a powder wetting machine light filler materials such as expanded and expandable microspheres can be easily inducted and dispersed dust and loss free. This saves cost and can produce products with improved properties. Light filler materials are always applied when it is required to reduce the weight of coatings. In addition, certain light fillers can facilitate the application, shorten drying times, vary the haptics of coated surfaces and cause some matting effect. On the other side, these light fillers are very dusty and difficult to wet and disperse. Its extremely low specific weight and the high specific surface - which in extreme cases may exceed 100 000 m2/kg - use of conventional dispersing methods such as dissolvers or stirrers very often result in an ordeal or becomes a game of pure chance. A special powder wetting and dispersing machine may eliminate this problem by dust and loss free handling of these light filler materials. the combination of a powder wetting machine and light filler materials provides a very high potential of rationalising as well as the possibility to produce systems with improved properties. Note de contenu : - Powder versus liquid - Dust and loss free dispersing - For high viscosity products as well - Protection against possible explosion and health risk - Dispersing of micro-spheres - Reduction of density and net weight - Reduction of costs for material - VOC compliance En ligne : https://drive.google.com/file/d/1JIYX4o7df3aBR3_-dLa94dGczyT1Jwe0/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29257 [article]

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Dispersing without grinding media / Thomas Haiß in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 205, N° 4608 (05/2015)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 205, N° 4608 (05/2015) . - p. 28-29 Titre : Dispersing without grinding media Type de document : texte imprimé Auteurs : Thomas Haiß, Auteur ; Christian Hofmann, Auteur Année de publication : 2015 Article en page(s) : p. 28-29 Langues : Anglais (eng) Catégories : Cavitation Cisaillement (mécanique) Dioxyde de titane Dispersions et suspensions -- Appareils et matériels Nanotubes Index. décimale : 667.9 Revêtements et enduits Résumé : To determine the success of dispersing, the ability to produce small particle sizes and reduce heat is always a challenge. Note de contenu : - NETZSCH DISPERSION DEVICE - APPLICATION EXAMPLES : Dispersing of TiO2 - An example of a pure suspension : carbon nanotubes dispersion - Production parameters of CNT suspension - An example of a pure emulsion : cosmetic emulsion En ligne : https://drive.google.com/file/d/1DhoqSgEc6PM5IK0-tJHN0fNhRcafyGhY/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24043 [article]

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Dispersing without grinding media / Sven Hoffmann in PAINTINDIA, Vol. LXV, N° 3 (03/2015)  

[article]  inPAINTINDIA > Vol. LXV, N° 3 (03/2015) . - p. 72-74 Titre : Dispersing without grinding media Type de document : texte imprimé Auteurs : Sven Hoffmann, Auteur ; Michael Schmidt, Auteur Année de publication : 2015 Article en page(s) : p. 72-74 Langues : Anglais (eng) Catégories : Dispersions et suspensions -- Appareils et matériels Index. décimale : 667.9 Revêtements et enduits Résumé : The Business Unit Grinding & Dispersing, one of three business units of the global NETZSCH Group, offers a comprehensive program for the many challenges in mechanical process engineering. Here the Business Unit is primarily involved in the areas of wet and dry grinding, mixing, dispersing, deaeration and classifying. The laboratory- and production-scale machines, as well as complete production lines, are used in almost ail areas of industry, such as the future-oriented nanotechnology sector, the production of ink, minerals or foods. The bundling of processing know-how, our extensive machine program, solutions for customer-specific problems and our global presence are unique and hence the strength of the business unit. A crushing or dispersing process is required in the manufacture of many different products. For some applications with the goal of achieving deagglomeration, disaggregation or delamination, manufacturing technologies are often applied for which optimization is both desired and necessary. With the new OMEGA technology from NETZSCH-Feinmahltechnik GmbH, optimization is often possible for such applications in terms of power requirements, output and service Iife of the machine as well as ease of cleaning and operation. The function of this machine is similar to that of a high-pressure homogenizer. Due to the unique modular construction of the dispersing unit, the essential difference is that the OMEGA operates with a maximum pressure of only 700 bar. Thus, compared to agitator bead mills or high-pressure homogenizers, a savings in specific energy of more than 50% can be achieved for some applications. Note de contenu : - Comminution processes : true comminution and dispersing - Economic dispersionizer OMEGA - Operating principle - Areas of application - Application example : titanium dioxide - Application example : defibrillation of natural fibers or unbundling of carbon nanotubes - FIGURES : 1. Design of the OMEGA economic dispersionizer - 2. Design of NETZSCH dispersion device with valve, turbulence, nozzle and filter module - 3. Titanium dioxide suspension after one pass in the OMEGA - 4. Aqueous CNT suspension, aqueous cellulose suspension En ligne : https://drive.google.com/file/d/1jqL-x_zqQLgCzc_TXJv5qQW9sfbIk56s/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24149 [article]

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Fundamentals of equipments used for pigment dispersions / Shraddha Gorhe in PAINTINDIA, Vol. LXVII, N° 8 (08/2017)  

[article]  inPAINTINDIA > Vol. LXVII, N° 8 (08/2017) . - p. 65-76 Titre : Fundamentals of equipments used for pigment dispersions Type de document : texte imprimé Auteurs : Shraddha Gorhe, Auteur Année de publication : 2017 Article en page(s) : p. 65-76 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Broyeurs Dispersions et suspensions -- Appareils et matériels Fragmentation Pigments Index. décimale : 667.9 Revêtements et enduits Résumé : The effectiveness of the dispersion operation is directly related to the ability of given vehicle to wet out the pigment particle agglomerates, to spread out over the particle surfaces, and finally to effect a lasting particle separation. The success of this operation is closely tied in with the ability of the grinding equipment to work in harmony with the grinding vehicle by expeditiously breaking up and exposing particle surfaces to the vehicle wetting and dispersing action. The breakup of particle agglomerates can be accomplished by either smearing or smashing types of dispersion equipment. So the classification of paint and ink grinding equipment can be done into smearer or smasher categories or hybrid equipment (mixture of these two). For the optimum breakup of particle clusters, smashers work most effectively when unhindered by viscous resistance, whereas smearers (conversely) must encounter strong viscous resistance to be effective at alI. Advanced dispersion technology for pigment dispersion that is different from all other techniques is now available. This technology enables enormous reductions in production costs and process times. Additional effects are a higher degree of dispersion, improved quality and raw material savings. Not only effective dispersion but the primary contributor to plant quality and safety is the design and selection of equipment. When operating at an industrial scale, the dangers associated with dispersion equipment are many. While selecting dispersion equipments, safety should be most important parameter. In this review paper, seven classes of conventional grinding (dispersion) equipments are discussed. Two of them essentially smearer type (three-roll mill, high-speed stone mills), and one is smasher type mill (high-speed impingement mill). The remaining are hybrid mills that provide both smashing and smearing activity in varying degrees to accomplish pigment dispersion. It also covers advanced dispersion technology mills and plant safety related to dispersion equipments. Note de contenu : - What is dispersion ? - What is the benefit of pigment dispersions ? - How does dispersion take place ? - Critical factors in dispersion process - Smearing versus smashing dispersion equipment - Equipments used for dispersion - Roller mills (three-roll mill) - Bad mill - Attritors and vibration mills (modifief ball mills) - Vibration mills - High-speed disk disperser - High-speed stone mills - Description of operation - High-speed impingement mills - Advanced dispersion technology - Dispersion equipment - plant quality and safety - Explosion proof equipment - The right sized vessel - Safety features En ligne : https://drive.google.com/file/d/1BMP_nOzYKokgWaFQmFvvEAJLVIY8-lwE/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29258 [article]

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