A series of experimental precipitated calcium carbonates (PCCs) coated with commercial stearic acid (stearin), with the coating amount of stearin added to the PCC particles ranging from 3 to 13.5 wt %, were prepared in aqueous medium and characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), …
DetailsTherefore, the effect of arabinoxylan (AX) and β-D-glucan stearic acid ester (SABG) composite coating material was examined for the postharvest storage quality of peach under storage at 22 ± 2 ...
DetailsThe heat treatment of stearic acid shows a zero-order process which is in accord with an evapn. process. The m.ps. of three samples of stearic acid from the rising temp. expts. at the heating rate (β) of 2-12°C min-1 are found to be in the range of 57.4-73.5°C and that in N2 flow rate ranging from 50 to 1000 mL min-1 is 69.0-70.0°C.
DetailsMore importantly, this superhydrophobic coating prevents bacterial adhesion and growth and released Cu 2+ and Zn 2+ ions and chitosan to achieve bactericidal properties, thereby protecting injured skin from bacterial infection. The two superhydrophobic coatings enhance the antifouling, antiadhesion, hemostatic, and antibacterial functions of ...
DetailsA series of moisture-resistant konjac glucomannan films were prepared by coating shellac/stearic acid emulsion on deacetylated konjac glucomannan films (dKGM). The effect of stearic acid content on structure and properties of the coated films were investigated by field emission scanning electron microscopy (FE SEM), Fourier transform …
DetailsTo prepare a 0.1 M stearic acid solution, 17.04 g of stearic acid was placed to a 1 L steel pot, then 400 ml of ethanol and 200 ml of distilled water were added and mixture was stirred constantly at 70 °C to dissolve stearic acid. Thereafter, 100 g of zeolite 4A were added to the stearic acid solution and the mixture was stirred at 70 °C for ...
DetailsStearic acid grafted CS film was developed on mild steel surface via dip coating technique and investigated for its corrosion resistance in 3.5% NaCl via electrochemical techniques.
DetailsDOI: 10.1016/j.fuel.2023.130140 Corpus ID: 264501883; Effect of stearic acid coating on the flame propagation and reaction mechanism of AlH3 @article{Zhang2024EffectOS, title={Effect of stearic acid coating on the flame propagation and reaction mechanism of AlH3}, author={Yun Zhang and Wenjuan Li and Qing Pei and Xin Zhang and …
DetailsResults show that overall mechanical performance of the films was not substantially affected by the coating and posterior heat treatments. Heat treatments decreased the water vapor transmission rate of stearic acid coated films from 91.9 to 31.6 g m−2 day−1 and the oxygen permeability of stearic acid and modified calcium carbonate …
DetailsAbstract. Read online. In this work, a novel stearic acid modified nickel-based (NiSA) superhydrophobic composite coating with good anti-corrosion properties was prepared on magnesium alloy AZ31 surface through electroless nickel-phosphorus plating, electrodeposition of porous nickel, and decoration with stearic acid.
Details@article{Liu2020ASA, title={A stearic Acid/CeO2 bilayer coating on AZ31B magnesium alloy with superhydrophobic and self-cleaning properties for corrosion inhibition}, author={Xiang Liu and Tian C. Zhang and Huaqiang He and Like Ouyang and Shaojun Yuan}, journal={Journal of Alloys and Compounds}, year={2020}, volume={834}, …
DetailsIn mechanical milling, stearic acid can be used as a process control agent to reduce the interface energy between powders and contribute to the crushing of powder particulates. In this study, a super-hydrophobic coating with a contact angle of 153° ± 2° was fabricated by ball milling a copper powder and stearic acid mixture onto an …
DetailsPalmitic acid melts at 145.2 °F and stearic acid melts at 156.7 °F. So for the purposes of this article, we'll just call the issue stearic spots. When you look at the fatty acid profile for certain oils, they can contain stearic + palmitic acid. So for example, palm oil 44% palmitic acid and 5% stearic acid (on average).
DetailsStearic Acid Coating Machine, Powder Surface Modifying Machine, Find Details and Price about Coating Machine Coating Machinery from Stearic Acid Coating Machine, Powder Surface Modifying Machine - Shanghai Crown Machinery Co., Ltd.
DetailsDOI: 10.1016/J.APSUSC.2016.03.205 Corpus ID: 101350607; Chemical surface modification of calcium carbonate particles with stearic acid using different treating methods @article{Cao2016ChemicalSM, title={Chemical surface modification of calcium carbonate particles with stearic acid using different treating methods}, author={Zhi Cao …
DetailsIt has been shown that solutions of stearic acid in a dimethyl sulfoxide–water binary mixture allow superhydrophobic protective coatings to be created on an aluminum alloy surface with a minimum impact on the environment. The superhydrophobicity and self-cleaning ability of the coating that we developed have …
DetailsAfter mixed with 5 wt% stearic acid, the cross section of the coating layer appeared a lot of uniform microgaps (Figs. 2 g). The gaps tended to be larger when the content of stearic acid reached 20 wt% (Figs. 2 h). It suggested that shellac and 5 wt% or 20 wt% stearic acid in the coating layer mixed uniformly. This can be explained by the …
DetailsDuring stearic acid modification, the acid-base reaction occurred between the stearic acid and the metallic oxide with hydroxy groups. The bridged-coordination carboxylates attach to the metallic oxide. Therefore, the modified coating had a higher content of the O C-O group than the original coating, as seen from the XPS results in …
DetailsEthyl linoleate and ethyl linoleate have been used as penetrants in anti‐corrosive paints based upon alkyd resins. Aluminium stearate can prevent excess penetration by paints of surfaces. Bis (hydroxymethyl) propanediol oleate has found use in alkyd resins derivative coatings with butylated melamine resins‐hardening materials to …
DetailsStep Ⅱ: Preparation of STA-TZC superhydrophobic coating (Fig. 1 a).In order to realize superhydrophobic property, the as-prepared Zn and TZC coatings were put in 0.04 M STA-ethanol solution for 10 min; then it was dried with cold air to obtain STA modified Zn coating (Fig. 1 b) and STA modified TZC coating (Fig. 1 a).In order to …
DetailsThe clad ratio (n) of stearic acid on the surface of CFAs is determined using the formula: (2) n = M / q N A a 0 S W where M is the coating quantity of stearic acid on the surface of CFAs, q is molecular weight of stearic acid (284.48), N A is the Avogadro number (6.022 × 10 23), a 0 is the cross-sectional area of stearic acid molecules (2.2 ...
DetailsActivated calcium carbonate is produced by surface coating the precipitated calcium carbonate slurry (a semi-liquid mixture) with fatty acids (stearic acid – a solid saturated fatty acid obtained from animal or vegetable fats) and titanate(a salt in which the anion contains both titanium and oxygen, in particular one of the anion TiO 3 2− ...
DetailsWu et al. [26] conducted the superhydrophobic-modified cotton fabric experiment using UV curable waterborne coating, silver nanoparticles and stearic acid. The contact angle was increased up to ...
DetailsWater-insoluble amount of anhydrous borax powders, as a coating efficiency indicator, was increased from 73% to 91% by coating with 1 wt.% stearic acid for 60 min.
DetailsSustained release is highly desired for "efficacious, safe and convenient" drug delivery, particularly for those anticancer drug molecules with toxicity. In this study, a modified coaxial electrospraying process was developed to coat a hydrophobic lipid, i.e., stearic acid (SA), on composites composed of the anticancer drug tamoxifen citrate …
DetailsThe FTIR spectra for the original and stearic acid-modified CuO nanoparticles are shown in Fig. 4, which also displays the FTIR spectrum of the pure stearic acid. The parent CuO nanoparticles revealed two signals at 482 and 580 cm –1, which could be attributed to the Cu O bond [ 72, 73 ].
DetailsStearic acid forms a monolayer shell, coating the CaCO 3 particles, which enhances the compatibility between the CaCO 3 particles and the matrix of the composite. The morphology of the composites, observed by scanning electron microscopy, revealed that the CaCO 3 phase was homogeneously dispersed in the epoxy matrix under the …
DetailsAlH 3 is considered to be the most promising high-energy additive and stearic acid (SA) is a common passivation coating material to enhance stability. To explore the effect of coating of SA on AlH 3, flame propagation and reaction mechanisms are compared through ignition experiments and ReaxFF molecular dynamics, …
DetailsThis could be due to the oxidation of stearic acid present in the coating conducive to higher amounts of these esters. This could be further supported by the noticeable increase of butyl and hexyl acetate at day four of storage (P < 0.05). The use of fatty acids as substrates for the production of straight chain alcohols with the same or higher ...
Detailsstearic acid on an aluminum stearate coating increases its permeability and decreases its protective capability. The results presented in this article are useful for optimizing the conditions of ...
DetailsA composite coating (SAHA) was developed on the substrate surface from the modification of HA coating by SA. It was found that the composite coating was porous, which may provide abundant sites for the growth of osseous tissue. Stearic acid was absorbed on the surface of HA coating through electrostatic attraction.
DetailsHere, we demonstrate one kind of omnipotent epoxy resins @ stearic acid-Mg(OH)2 superhydrophobic coating via a simple antideposition route and one-step superhydrophobization process. The whole preparation process is facile, and expensive toxic reagents needed. This omnipotent coating can be applied on any solid substrate …
Detailsthe e˝ect of wheat straw arabinoxylan and β- d-glucan fatty acid ester coatings on postharvest quality and shelf life of the peach during storage. Materials and methods
DetailsCassava starch water suspensions were prepared at 75 °C with constant stirring.Glycerol was added after starch gelatinization. Carnauba wax and stearic acid were melted at 85 °C and homogenized into the cassava starch suspensions with a rotor–stator homogenizer (model MA 102, Marconi Ltda., Piracicaba, Brazil) for 3 min at 12,000 …
DetailsSurface Coating with Fatty Acids: Fatty acids, such as stearic acid, are commonly used for surface treatment. These acids form a hydrophobic layer on the surface of calcium carbonate particles ...
DetailsThe results showed that the stearic acid treatment increased the hydrophobicity of the surfaces of the cerium-based simple coatings. The use of an appropriate stearic acid concentration is a key for the fabrication of hydrophobic surfaces. The duplex coatings were demonstrated to protect the substrate from corrosion in …
DetailsHyun K. et al. reported that the zeolite surface modification with stearic acid had improved the flexibility of the low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), high ...
DetailsSeveral papers describe the treatment of calcium carbonate (CaCO3) with stearic acid acting as a surface modifier, in order to avoid particle coalescence and, at the same time, enhancing filler hydrophobic properties. However, there is still a lack of data relating the efficiency of a traditional modifier used, stearic acid, in the synthesis of …
DetailsIt depends on the surface area, actually – a finer grade will need more than a coarser grade. To produce this coated filler, a solution of stearic acid is sprayed onto dry calcium carbonate. Then it is milled to get an even coating of the particles. The result is a beautiful, hydrophobic white filler ready for use in all sorts of plastic ...
DetailsPE series jaw crusher is usually used as primary crusher in quarry production lines, mineral ore crushing plants and powder making plants.
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