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PubMed Journals Articles About "High Temperature Coatings Market Resin Type Epoxy Alkyd" RSS

12:00 EST 21st November 2018 | BioPortfolio

High Temperature Coatings Market Resin Type Epoxy Alkyd PubMed articles on BioPortfolio. Our PubMed references draw on over 21 million records from the medical literature. Here you can see the latest High Temperature Coatings Market Resin Type Epoxy Alkyd articles that have been published worldwide.

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Showing "High Temperature Coatings Market Resin Type Epoxy Alkyd" PubMed Articles 1–25 of 44,000+

Occupational asthma from epoxy compounds.

Two-component epoxy resin systems (ERS) composed of epoxy resin and polyamine hardeners are extensively used in industrial and construction coating. Triglycidyl isocyanurate (TGIC) is another type of epoxy derivative, mostly encountered in polyester powder paints. Epoxy compounds are well known skin sensitizers, but their respiratory sensitizing potential is largely unknown.


Formation of CO bubbles in epoxy resin coatings: A DFT study.

The epoxy resin coating is a fundamental species with epoxy resins used as main components to form the final film. Unexpectedly, bulky CO bubbles that occasionally appeared during the curing process of epoxy resin coatings might destroy the final film properties. With an attempt to thoroughly understand the formation mechanism of CO bubbles and further propose countermeasures to control them, Density Function Theory (DFT) in this paper was employed to calculate the absorption process, the curing reaction an...

A One-Component, Fast-Cure, and Economical Epoxy Resin System Suitable for Liquid Molding of Automotive Composite Parts.

Imidazole cured epoxy resin systems were evaluated for one-component, fast-curing resins for liquid molding of automotive composite parts according to industry requirements. It was demonstrated that an epoxy resin-1-(cyanoethyl)-2-ethyl-4-methylimidazol(EP-1C2E4MIM) system would cure in a few minutes at 120 °C, while exhibiting acceptable pot life, viscosity profiles, and low water absorption. Moreover, this system yielded high parts with mechanical properties similar to the amine-epoxy systems, which ...


Enhanced Wear Performance of Hybrid Epoxy-ceramic Coatings on Magnesium Substrates.

Epoxy-based polymer was deposited as sealing agent on porous anodized coatings prepared by plasma electrolytic oxidation (PEO) to construct multilayered "soft-hard" coatings on Mg substrates. Different thicknesses and microstructures of the top epoxy layer were achieved by employing different dip-coating strategies. Atomic force microscopye (AFM), pull-off tests and nanoindentation tests were conducted to study the surface roughness, the adhesion strength of the epoxy layer and the mechanical properties of ...

Density-Functional Tight-Binding Study on the Effects of Interfacial Water in the Adhesion Force between Epoxy Resin and Alumina Surface.

Adhesion is one of the most interesting subjects in interface phenomena from the viewpoint of wide-range applications as well as basic science. Interfacial water has significant effects on coatings, adhesives, and fiber-reinforced polymer composites, often causing adhesion loss. The way of thinking based on quantum mechanics is essential for a better understanding of physical and chemical properties of adhesive interfaces. In this work the molecular mechanism of the adhesion interaction between epoxy resin ...

Ultrastiff Graphene Foams as Three-Dimensional Conductive Fillers for Epoxy Resin.

Conductive epoxy composites are of great interest due to their applications in electronics. They are usually made by mixing powdered conductive fillers with epoxy. But the conductivity of the composite is limited by the low filler content because increasing filler content causes processing difficulties and reduces the mechanical properties of the epoxy host. We describe here the use of ultrastiff graphene foams (uGFs) as three-dimensional (3D) continuous conductive fillers for epoxy resins. The powder metal...

Alkyd resin based hydrophilic self-cleaning surface with self-refreshing behaviour as single step durable coating.

Herein, we reported the photo-catalytic degradation/anti-bacterial property of Ag-doped ZnO nanoparticles (SDZO Nps) prepared by a facile gel-combustion technique and its self-cleaning/self-refreshing/self-disinfectant behaviour while on impregnating as pigment into the alkyd resin based coating. The influence of doping Ag (1% & 2%) with ZnO has been evaluated in terms of crystal structure, morphology, optical properties, etc. using X-ray diffraction analysis, Field Emission Scanning Electron Microscope, UV...

Superhydrophobic Coating for Anti-fouling of Chinese Paintings.

In past 10 years, many studies on superhydrophobic (SH) papers have been reported. However, these works rarely carried out on Chinese Paintings. Compared with pure paper, the complexity of Chinese black ink and pigment caused by including animal glue, an emulsion agents and fixatives allowing for the nanoparticles to disperse in water, negatively affects the formation of SH coatings. In this work, we report the fabrication of SH coatings using fluorine silicon sol containing epoxy group on Chinese Paintings...

Thin Nacre Biomimetic Coating with Super-Anticorrosion Performance.

The rigorous organic/inorganic laminated structure of nacre is developed by millions of years of biological evolution against various external impacts including mechanical loadings and chemical attacks. Nacre-biomimetic materials have been recognized as an effective strategy to achieve high strength and toughness simultaneously. Yet, the understanding of nacre-like structure from the perspective of corrosion protection is still very limited. This work investigates the anticorrosion performance of nacre-biom...

New amphiphilic composite for preparing efficient coated potassium-fertilizers for top-dressing fertilization of annual crops.

This study describes the efficiency of a new coating material for preparing granulated potassium-fertilizers with a potassium release to the soil solution sensitive to rainfall intensity. The composite is prepared by reaction of an alkyd-resin with cement in the absence of water. The complementary use of diverse analytical techniques showed that the presence of the cement fraction induced alkyd resin reticulation and gradual cement-resin hardening. Scanning electron microscopy revealed the formation of micr...

Comparison of the effectiveness of various rotary and reciprocating systems with different surface treatments to remove gutta-percha and an epoxy resin-based sealer from straight root canals.

To compare the Reciproc Blue, Reciproc, and ProTaper Universal Retreatment systems with regard to the effective removal of epoxy resin-based sealer and gutta-percha during the retreatment of oval, straight root canals.

Effects of market type and time of purchase on oxidative status and descriptive off-odors and off-flavors of beef in Vietnam.

The objective of the current study was to determine the effects of market type (super market - SM, indoor market - IM, open market - OM) and sampling time (at the opening - T0 and 4 h after the opening - T4) on antioxidant capacity, lipid oxidation, and descriptive sensory attributes of beef in Vietnam. Values of FC and TEAC were greater in OM beef than IM and SM (P 

Functionalized graphene with Co-ZIF adsorbed borate ions as an effective flame retardant and smoke suppression agent for epoxy resin.

In order to reduce the fire risk of epoxy resin (EP), functionalized reduced graphene oxide (RGO) with Co-ZIF (zeolitic imidazolate frameworks-67) adsorbed borate ions (ZIF-67/RGO-B) was prepared. The results of transmission electron microscopy (TEM) showed that ZIF-67 was grown on the surface of RGO triumphantly. In addition, the structure of ZIF-67/RGO-B was not significantly changed compared with ZIF-67/RGO. Subsequently, ZIF-67/RGO-B was added into EP by a simple blending method. The combustion results ...

Effects of Conformal Nanoscale Coatings on Thermal Performance of Vertically Aligned Carbon Nanotubes.

The high aspect ratio and the porous nature of spatially oriented forest-like carbon nanotube (CNT) structures represent a unique opportunity to engineer a novel class of nanoscale assemblies. By combining CNTs and conformal coatings, a 3D lightweight scaffold with tailored behavior can be achieved. The effect of nanoscale coatings, aluminum oxide (Al O ) and nonstoichiometric amorphous silicon carbide (a-SiC), on the thermal transport efficiency of high aspect ratio vertically aligned CNTs, is reported her...

Electrophoretic co-deposition of PEEK-hydroxyapatite composite coatings for biomedical applications.

This study focuses on the optimization of electrophoretic deposition (EPD) and suspension parameters for producing PEEK-hydroxyapatite (HA) coatings with feasible microstructure, adhesion strength, and in-vitro bioactivity. Nanostructured hydroxyapatite (HA) micro-granules were incorporated with PEEK to form PEEK-hydroxyapatite composite coatings via EPD. After EPD, a heat-treatment at 375 °C was applied for densification of the coatings and for enhancing the adhesion between the coatings and the substra...

Photoinitiated Seeded RAFT Dispersion Polymerization: A Facile Method for the Preparation of Epoxy-Functionalized Triblock Copolymer Nano-Objects.

In this study, a novel photoinitiated seeded reversible addition-fragmentation chain transfer (RAFT) dispersion polymerization is developed for the preparation of epoxy-functionalized triblock copolymer nano-objects at room temperature. Epoxy-functionalized worms and vesicles prepared by photoinitiated RAFT dispersion polymerization of glycidyl methacrylate are used as seeds for chain extension by photoinitiated seeded RAFT dispersion polymerization of methacrylic and acrylic monomers. Good control is maint...

Multifunctional Epoxy-Based Solid Polymer Electrolytes for Solid-State Supercapacitors.

Solid polymer electrolytes (SPEs) have drawn attention for promising multifunctional electrolytes requiring high mechanical properties and ionic conductivity. To develop a safe SPE for energy storage applications, mechanically robust cross-linked epoxy matrix is combined with fast ion diffusing ionic liquid/lithium salt electrolyte (ILE) via a simple one-pot curing process. The epoxy-rich SPEs show higher Young's modulus (E) with higher glass transition temperature (T), but lower ionic conductivity (σ) wit...

A high-temperature plugging system for offshore heavy oil thermal recovery.

There are many heavy oil reservoirs in offshore oilfields in China. Steam and multiple thermal fluid stimulation technologies are of increasing interest and have been applied to an increasing number of projects. During the stimulation or displacement of heavy oil reservoirs during thermal recovery, several factors, such as reservoir heterogeneity, are prone to cause channeling phenomena and affect the thermal recovery effect of steam stimulation. According to the unique requirements for the stimulation of m...

Substrate-independent superliquiphobic coatings for water, oil, and surfactant repellency: An overview.

Superliquiphobic surfaces that exhibit self-cleaning, antifouling, finger touch resistance, and low drag properties with high transparency are of interest in industrial applications including optical devices, solar panels, and self-cleaning windows. In this paper, an overview of coatings using a simple and scalable fabrication technique are presented that exhibit superoleophobic/philic properties, wear resistance, finger touch resistance, and transparency. The coating comprises hydrophobic SiO nanoparticles...

Epoxy isonitriles, a unique class of antibiotics - Synthesis of their metabolites and biological investigations.

Epoxy isonitrile containing natural products often possess specific and potent antibacterial activity against Gram-positive pathogens. This scaffold, however, is extremely labile under acidic and basic conditions, undergoing a Payne rearrangement to produce a stable epoxy ketone metabolite and releasing hydrogen cyanide. We synthesized and performed biological assays with epoxy ketone containing metabolites and identified that the epoxy isonitrile moiety is pertinent for biological activity. Serendipitously...

Thermally and photocatalytically active multifunctional porous coatings for high temperature applications.

In this study, the thermal catalytic powder mixtures of Mn, Ce and Co oxides supported on AlO were synthesized. In order to obtain thermally active porous coating on the steel substrate, a binder solution produced via sol-gel method was used to bind the synthesized powder. Additionally by incorporation of TiO nanoparticles to previously described thermally active coating, both thermally and photocatalytically active multifunctional surfaces were obtained. The self-cleaning property and the rate of volatile ...

Synthesis, crystal structure, and compressibilities of Mn3-xIr5B2+x (0 ≤ x ≤ 0.5) and Mn2IrB2.

The new ternary transition metal borides Mn3-xIr5B2+x (0 ≤ x ≤ 0.5) and Mn2IrB2 were synthesized from the elements at high temperature and high-pressure/high-temperature conditions. Both phases can be synthesized as powder samples in a radio-frequency furnace in argon atmosphere. High-pressure/high-temperature conditions were used to grow single-crystals. The phases represent the first ternary compounds within the system Mn-Ir-B. Mn3-xIr5B2+x (0 ≤ x ≤ 0.5) crystallizes in the Ti3Co5B2 structure type...

Investigation of Cutting Temperature during Turning Inconel 718 with (Ti,Al)N PVD Coated Cemented Carbide Tools.

Physical Vapor Deposition (PVD) TiAlN coated cemented carbide tools are commonly used to cut difficult-to-machine super alloy of Inconel 718. The Al concentration of TiAlN coating can affect the coating microstructure, mechanical and thermo-physical properties of TiAlN coating, which affects the cutting temperature in the machining process. Cutting temperature has great influence on the tool life and the machined surface quality. In this study, the influences of PVD (Ti,Al)N coated cemented carbide tools o...

Immobilization of cellulase on thermo-sensitive magnetic microspheres: improved stability and reproducibility.

Magnetic double-shell hybrid microspheres (FeO@SiO@p(NIPAM-co-GMA)) have been developed as a promising supported substrate for the immobilization of cellulase. Since the surface of the magnetic microspheres not only contains an epoxy group from GMA (glycidyl methacrylate) that can covalently bind to the enzyme, but also has an intelligent temperature response property from NIPAM (N-isopropylacrylamide), the cellulase can be covalently bonded to the magnetic microspheres and have a temperature-sensitive capa...

RESIN FLOW IN CONIFERS.

Resins are plant exudates of economic importance used by plants as defence. They flow out of resin ducts, open and long tube-like intercellular spaces lined by a layer of specialized parenchyma cells, called the epithelium, which secrete resin into the duct lumen. A model that describes resin flow in conifers is presented to investigate how duct structure, resin loading, crystallization, and viscosity affect flow and could explain differences between species. Considering resin viscosity, the structure of re...


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