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Littérature scientifique sur le sujet « Zinc-based activator »

Auteur : Grafiati

Publié le 9 mars 2023

Mis à jour le 31 juillet 2025

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Articles de revues sur le sujet "Zinc-based activator"

BRATSLAVETS, Bogdan. "RESTORATION OF PARTS OF AGRICULTURAL MACHINES WITH ZINC-BASED GALVANIC COATINGS." Herald of Khmelnytskyi National University. Technical sciences 309, no. 3 (2022): 82–84. http://dx.doi.org/10.31891/2307-5732-2022-309-3-82-84.

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Galvanizing is most often used to protect against corrosion. In repair production zinc coverings are used for protection against corrosion of fastening details and restoration of landing surfaces of lightly loaded details. Electroplating is the process of applying metal to the surface of parts by crystallizing it from an aqueous solution of the corresponding salts (electrolyte) when a direct current passes through them. An electrical circuit is closed by an electrolyte between two conductors called electrodes. The electrode to which the conductor of the external circuit with a plus is attached

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Mostoni, Milana, Credico, D’Arienzo, and Scotti. "Zinc-Based Curing Activators: New Trends for Reducing Zinc Content in Rubber Vulcanization Process." Catalysts 9, no. 8 (2019): 664. http://dx.doi.org/10.3390/catal9080664.

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The efficiency of sulfur vulcanization reaction in rubber industry is generally improved thanks to the combined use of accelerators (as sulphenamides), activators (inorganic oxides), and co-activators (fatty acids). The interaction among these species is responsible for the formation of intermediate metal complexes, which are able to increase the reactivity of sulfur towards the polymer and to promote the chemical cross-links between the rubber chains. The high number of species and reactions that are involved contemporarily in the process hinders the complete understanding of its mechanism de

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Heideman, Geert, Jacques W. M. Noordermeer, Rabin N. Datta, and Ben van Baarle. "Zinc Loaded Clay as Activator in Sulfur Vulcanization: A New Route for Zinc Oxide Reduction in Rubber Compounds." Rubber Chemistry and Technology 77, no. 2 (2004): 336–55. http://dx.doi.org/10.5254/1.3547827.

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Abstract Concern about the release of eco-toxic zinc species from rubbers into the environment leads to an increasing interest in potential substitutes. Although alternative metal oxides and zinc compounds as activators for sulfur vulcanization have been studied thoroughly, at present no viable alternative has been found to eliminate ZnO completely from rubber compounds, without significantly jeopardizing processing as well as performance characteristics. In this paper, the application of a new activator for sulfur vulcanization will be discussed. This activator is developed based on the assum

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Javadi, Seyyed Mohammad. "Applications of ZnO and MgO Nanoparticles in Reducing Zinc Pollution Level in Rubber Manufacturing Processes: A Review." Current Biochemical Engineering 6, no. 2 (2020): 103–7. http://dx.doi.org/10.2174/2212711906666200224105931.

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Background: Rubber vulcanization is a consolidated chemical process to enhance the mechanical properties of the polymeric material by sulfur crosslinking of the polymer chains, such as rubber. Vulcanization Activators are important rubber processing additives that activate sulfur cure and improve the efficiency of sulfur-based cure systems. The most common activator is zinc fatty acid ester that is often formed in-situ by the reaction of fatty acid with zinc oxide. Although zinc is one of the less harmful heavy metals, according to European Council Directive 2004/73/EC, the reduction of zinc l

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Guo, Lijie, Lei Zhang, Yue Zhao, et al. "Study On Mechanical Properties Of Cemented Paste Backfill Using Fly-Ash-Based Cementitious Materials." Journal of Asian Concrete Federation 10, no. 1 (2024): 1–7. http://dx.doi.org/10.18702/acf.2023.10.1.1.

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In Mongolia, the Ulan lead-zinc mine is now struggling with high backfill operating costs and poor Cemented Paste Backfill (CPB) mechanical performance after curing. To solve this problem, BGRIMM Technology Group has investigated an activator that could mix with fly ash from Choibalsan Power Plant in Mongolia as a supplementary cementitious material for backfill. In this study, the mechanical performance of CPB samples prepared with various fly ash content and activator types were studied to provide a basis for the industrial application of fly ash-based supplementary cementitious materials. T

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Setianto, Wahyu Bahari, Nasruddin Nasruddin, Astuti Astuti, et al. "The Influence of Palm Oil-Based Zinc Stearate Application on Vulcanized Rubber: Analyzing Hardness, Tensile Strength, and Elongation at Break for Hand Grip Formulation Development." Key Engineering Materials 1001 (December 18, 2024): 111–17. https://doi.org/10.4028/p-wc8yqp.

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Vulcanization of rubber compounds is a crucial step in the process of developing natural rubber end products. Selected components are then used to formulate a rubber compound, which is further treated to create vulcanized rubber. In this study, a palm oil-based zinc stearate compound (ZS) developed by the National Research and Innovation Agency (BRIN) was used as a replacement for ZnO and stearic acid, which were previously used as activator and co-activator in the process of vulcanization. The goal of this study was to create a compound made of rubber formulation for use in the hand grip. The

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Figueroa, Eric E., and Jerod S. Denton. "Zinc pyrithione activates the volume-regulated anion channel through an antioxidant-sensitive mechanism." American Journal of Physiology-Cell Physiology 320, no. 6 (2021): C1088—C1098. http://dx.doi.org/10.1152/ajpcell.00070.2021.

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Leucine-rich repeat-containing 8 (LRRC8) volume-regulated anion channels (VRACs) play important physiological roles in diverse cell types and may represent therapeutic targets for various diseases. To date, however, the pharmacological tools for evaluating the druggability of VRACs have been limited to inhibitors, as no activators of the channel have been reported. We therefore performed a fluorescence-based high-throughput screening (HTS) of 1,184 Food and Drug Administration-approved drugs for compounds that increase VRAC activity. The most potent VRAC potentiator identified was zinc pyrithi

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Sunkara, Jhansi R., and Sathish M. Botsa. "Facile Synthesis of 1,8-dioxooctahydro Xanthenes by Reusable Zinc Sulfide based Ternary Nanocomposite via Hydrothermal Route." Current Catalysis 9, no. 1 (2020): 72–79. http://dx.doi.org/10.2174/2211544708666191112120505.

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Background: Metal oxide or metal oxide composite nanoparticles are attaining tremendous importance due to their catalytic activities for various organic transformations. Objective: To report the one-pot synthesis of xanthene derivatives prepared by ZnS-Fe2O3-Ag composite under solvent-free conditions. Method: To prepare nanocomposite by a facile and simple hydrothermal approach. Results: The prepared composite is smaller (17.56 nm) in size and can be easily separable, recycled and reused six times without any significant loss of catalytic activity with excellent yields. In short reaction time,

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Ajekwene, Kingsley Kema, Johnson Oseghale Oboh, Ugonna Kingsley Ugo, and Simon Ikechukwu Ichetaonye. "Preparation of Multifunctional Additive [MFA] from Castor Oil (CO) and Study of its Effects on the Physical Properties of Natural Rubber Vulcanizates." International Journal of Research in Advent Technology 11, no. 3 (2023): 1–10. http://dx.doi.org/10.32622/ijrat.111202311.

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This experiment focuses on the synthesis of Multifunctional Additives (MFA) from Castor seed oil (CO) and pure Oleic acid (OA) respectively. These multifunctional additives (CO-MFA and OA-MFA) were investigated as potential substitutes for process oil, activator, co-activator, and accelerator in the formulation of a natural rubber vulcanizate. During processing, the castor seed oil was characterized for acid value (AV), free fatty acid (FFA) and saponification value (SV) and subsequently reacted with 1, 6-hexane diamine to obtain a mixture of salts termed castor oil-based multifunctional addit

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Xie, Zhigang, Wei Guan, Fangying Ji, Zhongrong Song, and Yanling Zhao. "Production of Biologically Activated Carbon from Orange Peel and Landfill Leachate Subsequent Treatment Technology." Journal of Chemistry 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/491912.

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In order to improve adsorption of macromolecular contaminants and promote the growth of microorganisms, active carbon for biological wastewater treatment or follow-up processing requires abundant mesopore and good biophile ability. In this experiment, biophile mesopore active carbon is produced in one-step activation with orange peel as raw material, and zinc chloride as activator, and the adsorption characteristics of orange peel active carbon is studied by static adsorption method. BET specific surface area and pore volume reached 1477 m2/g and 2.090 m3/g, respectively. The surface functiona

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Thèses sur le sujet "Zinc-based activator"

MOSTONI, SILVIA. "From nanosized to single sites zinc-based activators for rubber vulcanization process." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2019. http://hdl.handle.net/10281/241069.

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I nanocompositi di gomma (NC) sono materiali comunemente usati nell’industria degli pneumatici. Le proprietà meccaniche dipendono sia dall’aggiunta delle nanoparticelle (NP) di filler rinforzanti e dal processo di vulcanizzazione. La reazione di vulcanizzazione a base zolfo si basa sulla formazione di un reticolo chimico tra le catene di polimero attraverso ponti mono-, bi- e poli-sulfurei. L’incremento della velocità di reazione e dell’efficienza di reticolazione è consentito da un complesso sistema catalitico, composto da acceleranti (ad esempio sulfenammidi), attivatori (ossidi metallici) e

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Lin, Tsu-Hung, and 林祖弘. "A UV-Activated Room-Temperature Gas Sensor Based on Hydrothermally Grown Zinc Oxide Nanowires." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/01078386673579250865.

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碩士<br>國立臺灣大學<br>應用力學研究所<br>102<br>In this research, a novel volatile organic compound (VOC) sensing layer was fabricated. The advantage of the fabrication is the low cost and the simple equipment. We use the Zinc Oxide (ZnO) as the sensing material to detect the reduction gas. By the characteristic of oxidation of the surface of ZnO, the oxygen ion will become reduction when the surface is in the environment with volatile organic compound. ZnO seed layers were deposited by RF Sputter. ZnO nanowires were grown in aqueous of zinc acetate and hexamethylenetetramine. With UV pretreatment, ZnO na

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Chapitres de livres sur le sujet "Zinc-based activator"

Saraswat, Pooja, Ambika Chaturvedi, and Rajiv Ranjan. "Zinc Finger Nuclease (ZFNs) and Transcription Activator-like Effector Nucleases (TALENs) Based Genome Editing in Enhancement of Anticancer Activity of Plants." In Plant-Derived Anticancer Drugs in the OMICS Era. Apple Academic Press, 2023. http://dx.doi.org/10.1201/9781003377412-11.

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Deka, Pradip Chandra. "Concepts of Molecular Plant Breeding and Genome Editing." In Research Anthology on Bioinformatics, Genomics, and Computational Biology. IGI Global, 2023. http://dx.doi.org/10.4018/979-8-3693-3026-5.ch023.

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Traditional plant breeding depends on spontaneous and induced mutations available in the crop plants. Such mutations are rare and occur randomly. By contrast, molecular breeding and genome editing are advanced breeding techniques that can enhance the selection process and produce precisely targeted modifications in any crop. Identification of molecular markers, based on SSRs and SNPs, and the availability of high-throughput (HTP) genotyping platforms have accelerated the process of generating dense genetic linkage maps and thereby enhanced application of marker-assisted breeding for crop impro

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"Concepts of Molecular Plant Breeding and Genome Editing." In Advances in Environmental Engineering and Green Technologies. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-4312-2.ch001.

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Khan, Bushra, Shifa Ahmad, Madhurima Tiwari, and Dr Deepika Delsa. "STRAIN IMPROVEMENT BY CRISPR/Cas9 FOR ENHANCING BIOFUEL PRODUCTION." In Futuristic Trends in Biotechnology Volume 3 Book 21. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3bkbt21p1ch1.

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The rapid progress in synthetic biology and metabolic engineering presents significant opportunities for the development of advanced biofuels. These fuels offer higher yields and efficiency while reducing carbon emissions. The clustered regularly interspaced short palindromic repeats-CRISPR-associated proteins (CRISPR-Cas9) technology is one of the significant developments in molecular biology. Compared to prior techniques like zinc finger nucleases (ZFN) and transcription activator-like effector nucleases (TALEN), it allows more precise genome editing with increased precision. Despite researc

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Friedmann, Theodore. "Gene editing—a foundational new era for genetic therapies." In The Origin and Development of Genetic Therapies. Oxford University PressNew York, 2025. https://doi.org/10.1093/med/9780197689974.003.0020.

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Abstract Genetics has transformed from a purely descriptive science to a manipulative science. The first techniques for genome editing came in the mid-1980s in the studies of Oliver Smithies and Mario Capecchi but made huge advances through the discovery of the targeted endonucleases such as zinc finger endonuclease, transcription activator-like effectors (TALEs) and clustered regularly interspaced short palindromic repeats (CRISPR) and their associated families of scissors-like Cas endonucleases (CRISPR-associated proteins). It is an understatement to say that not only have these tools enable

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Insaf, Muhammad, Muhammad Abu Bakar Saddique, Muhammad Ali Sher, et al. "Genome Editing for Biotic Stress Resistance in Medicinal Plants." In Medicinal Plants: Microbial Interactions, Molecular Techniques and Therapeutic Trends. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815136838123010014.

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Plants are continually subjected to a range of physical and biological stressors throughout their growth period. Insects and pests, like other biotic stressors, have created significant concerns about lower productivity, which jeopardizes agricultural production. Genome engineering, also known as genome editing, has emerged as a cutting-edge breeding technique capable of altering the genomes of plants, animals, microbes, and humans. Since ancient times, humans have used medicinal plants for food, medicine, and industrial purposes. Both traditional biotechnology and more recent next-generation

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Manilevich, F., Yu Pirskyy, A. Kutsyi, V. Berezovets, and V. Yartys. "Activated aluminum for hydrogen generation from water." In HYDROGEN BASED ENERGY STORAGE: STATUS AND RECENT DEVELOPMENTS. Institute for Problems in Materials Science, 2021. http://dx.doi.org/10.15407/materials2021.081.

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Al-based alloys and mechanochemically activated aluminum powders were prepared in this study, and the regularities of their hydrolysis reaction with water were studied. Aluminum alloys were prepared by melting aluminum with additions of Ga–In–Sn eutectic (5 wt.%), bismuth (3 wt.%), antimony (3 wt.%), or zinc (3 wt.%). The temperature-dependent kinetics of their hydrolysis in a temperature range 25–70 °C was studied by using a volumetric technique. The most efficient activation of the hydrolysis process was achieved for the Al–Ga– In–Sn-Zn alloy, particularly at low temperatures (5 and 25° C).

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Panchal, Anurag, Tuhin Das, Roshan Kumar Singh, and Manoj Prasad. "Recent Advancements in CRISPR/Cas-based Genome Editing in Plants." In Genome Size and Genetic Homogeneity of Regenerated Plants: Methods and Applications. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815165555123010003.

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The Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)- CRISPR-associated protein (Cas)-mediated genome editing is a recently developed gene editing technology, which has transformed functional and applied genomics. This technology is precise, cost-efficient, and rapid than other previously developed genome editing tools such as Meganucleases (MNs), Zinc-Finger Nucleases (ZFNs) and Transcription Activator-Like Effector Nucleases (TALENs). The CRISPR-Cas9 system is widely exploited for developing plants with enhanced tolerance towards various environmental stresses, resistance a

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Wang, Baike, Juan Wang, Shaoyong Huang, et al. "Advances in the generation of insertion-based genome edits in plants." In Genome editing for precision crop breeding. Burleigh Dodds Science Publishing, 2021. http://dx.doi.org/10.19103/as.2020.0082.05.

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Tremendous progress has been achieved in the field of gene editing in plants, such as with the use of zinc finger nucleases (ZFNs), transcription activator-like effector nucleases (TALENs), and clustered regularly interspaced short palindromic repeats (CRISPR). Because of the potential advantages associated with mutant creation and crop germplasm innovation, genome editing technology has been rapidly developed and widely used in crop improvement in recent years. In this review, we aim to document some of the important recent developments and applications of genome-editing tools, especially wit

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Actes de conférences sur le sujet "Zinc-based activator"

Troconis de Rincón, O., A. Sagüés, and A. Torres-Acosta. "Sacrificial Anodes for Reinforced Concrete Structures: a Review." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-09078.

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Abstract In recent years the use of sacrificial anodes for cathodic protection in reinforced concrete structures has increased reflecting ease of installation, low maintenance requirements as well as desirability in prestressed concrete structures where the naturally controlled protection potential decreases the risk of hydrogen embrittlement. Zinc-based alloys have been among the most evaluated galvanic materials for concrete structures, especially in USA, in many applications: thermal spray, superficial metal/mesh with and without hydrogel adhesive, embedded in concrete (point anodes) with o

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McDonald, James, and Pablo L. Bernad. "Activated Zinc Technology; Making Zinc-Rich Epoxies Work Better for the Applicator and the Owner." In SSPC 2016 Greencoat. SSPC, 2016. https://doi.org/10.5006/s2016-00044.

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Abstract Inorganic zinc-rich coatings (IOZ’s) are often considered the gold standard for corrosion protection in atmospheric environments. Frequently, zinc epoxy coatings are considered second best among the most effective coatings for corrosion protection. However, current zinc-rich coating technology is not exempt of limitations, such as poor mechanical properties of the film, rigid environmental application conditions, or the inefficient use of zinc particles for providing galvanic protection. Due to these limitations, a number of asset owners have made the decision not to use zinc-rich coa

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Arias, Santiago, Jose Fernandes, Raquel Morales, and Munzir Khan. "Sustainable Activated Zinc Rich Epoxy Primers with Extended Durability." In MECC 2023. AMPP, 2023. https://doi.org/10.5006/mecc2023-20257.

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Abstract Zinc rich primers provide the first line of defense in the fight against corrosion. Zinc epoxies compared to zinc silicates as coating solutions, are more flexible regarding curing conditions, they are easier to overcoat and they are less demanding to substrate preparation prior to application. A new generation of activated zinc rich primers with enhanced corrosion and mechanical properties has been successfully introduced in the market since 2014. This new technology delivers an efficient galvanic protection while providing a more effective barrier and inhibition effects to the coati

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Arias, Santiago, Jose Fernandes, Alex Yague, and Raquel Morales. "Calculating the Sustainability Impact of Coating Systems Used to Protect Steel Structures against Corrosion." In CONFERENCE 2025. AMPP, 2025. https://doi.org/10.5006/c2025-00132.

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Abstract Sustainability is an important key element of business strategy today. Paint technologies that provides enhanced corrosion and mechanical properties exists and can go beyond standard performance in the market. Sustainability Scorecards provides a tool that can be used to calculate and benchmark the sustainability credentials of corrosion protection coating solutions1 A new generation of Activated Zinc rich primers with enhanced corrosion and mechanical properties has been successfully introduced in the market since 2014. This new technology delivers an efficient galvanic protection wh

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Morales, Raquel, Jose Luna, and Antoni Prieto. "Challenging the Performance Myth of Inorganic Zinc Rich vs Organic Zinc Rich Primers and Activated Zinc Primers." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-09127.

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Abstract Zinc rich primer coatings, both organic and inorganic, are extensively used in highly corrosive environments and they are part of a high performance coating system in the Protective Coatings Industry. During the 60’s and the 70’s, zinc rich epoxy primers dominated the market. Later, zinc ethyl silicate primers took over mainly due to their higher potential to corrosion protection. Nowadays however, new developments in zinc epoxy primers are setting the two categories of Zinc rich primers on the same level in terms of anticorrosion performance while adding the advantages of Epoxy based

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Morales, Raquel, Antoni Prieto, and Jose Luna. "Challenging the Performance Myth of Inorganic Zinc Rich vs Organic Zinc Rich Primers and Activated Zinc Primers." In SSPC 2017 Greencoat. SSPC, 2017. https://doi.org/10.5006/s2017-00046.

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Bennett, Jack, and Caroline Talbot. "Extending the Life of Concrete Patch Repair with Chemically Enhanced Zinc Anodes." In CORROSION 2002. NACE International, 2002. https://doi.org/10.5006/c2002-02255.

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Abstract Discrete embedded zinc anodes have been proposed to extend the service life of concrete patch repair by providing localized cathodic protection to adjacent steel. The performance of such anodes must be enhanced by chemical agents, which maintain the zinc in an electrochemically active state and increase the flow of protective current to the steel. In this study, the effects of various chemical agents were studied by monitoring both the flow of current and steel polarization on laboratory test blocks. Protective current for test blocks containing zinc anodes and lithium-based activatin

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Narayanan, Deeparekha, Yi Lu, Victor Ponce, and Homero Castaneda. "Predicting Long-Term Exposure Performance of Galvanized Rebar Based on Artificial Intelligence and Electrochemical Methods." In CONFERENCE 2024. AMPP, 2024. https://doi.org/10.5006/c2024-21166.

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Abstract In this work, we carried out electrochemical studies on ASTM A615 (bare steel rebar), ASTM A767 (steel rebar with hot dip galvanized zinc coating), and ASTM A1094 (steel rebar with continuously galvanized zinc coating) rebars exposed to two different environments. In one condition, the samples were exposed to a simulated concrete pore solution (SCPS) containing 3.5 wt.% NaCl. Over a period of 12 months, the electrochemical properties of the samples were regularly assessed through open circuit potential (OCP), linear polarization resistance (LPR) and electrochemical impedance spectrosc

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Tiwary, Punam, Puneet Mishra, Navneet Gupta, Jitendra Panwar, and H. D. Mathur. "Chemiresistive urea sensor based on a composite film of Activated charcoal and Zinc Oxide." In 2024 IEEE Applied Sensing Conference (APSCON). IEEE, 2024. http://dx.doi.org/10.1109/apscon60364.2024.10465761.

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KWAK, A. "Study of the Impact of –NH2 Modification on Adsorptive Properties of Graphene Oxide." In Terotechnology XII. Materials Research Forum LLC, 2022. http://dx.doi.org/10.21741/9781644902059-23.

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Abstract. Graphene oxide is a nanomaterial of very high adsorption capabilities due to its vast surface area. Moreover, numerous oxygen functional groups present on the surface of graphene oxide enable its modifications to be performed. The authors aimed to create adsorbents based on activated carbon impregnated with amine-modified graphene oxide. The study showed that the amino group functionalisation, both with the use of ethylenediamine (GO-EDA) and using polyaniline (GO-PANI), causes the adsorbent to remove lead, mercury, copper, and iron ions from aqueous solutions very efficiently. Both

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Rapports d'organisations sur le sujet "Zinc-based activator"

Porat, Ron, Gregory T. McCollum, Amnon Lers, and Charles L. Guy. Identification and characterization of genes involved in the acquisition of chilling tolerance in citrus fruit. United States Department of Agriculture, 2007. http://dx.doi.org/10.32747/2007.7587727.bard.

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Citrus, like many other tropical and subtropical fruit are sensitive to chilling temperatures. However, application of a pre-storage temperature conditioning (CD) treatment at 16°C for 7 d or of a hot water brushing (HWB) treatment at 60°C for 20 sec remarkably enhances chilling tolerance and reduces the development of chilling injuries (CI) upon storage at 5°C. In the current research, we proposed to identify and characterize grapefruit genes that are induced by CD, and may contribute to the acquisition of fruit chilling tolerance, by two different molecular approaches: cDNA array analysis an

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