Bentonite is a better suspending agent in alcohol-based coating formulations. It can swell in ethanol, increase the viscosity of the coating and have a certain degree of thixotropy.
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The effect of modified bentonites on the thixotropic properties of coating materials and their resistance against mold fungi settlement
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The addition of 7 wt% bentonite to the cationic starch matrix promoted high oil resistance with 12 for kit-oil, while 10 wt% bentonite promoted greater pencil hardness, with a value of 8H. Bentonite strength and cationic starch showed good interaction, increasing oil resistance.
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In the present study, the water vapour and grease resistance properties of paper coating based starch – bentonite clay has been investigated. The clay concentration was 0%, 10%, 15%, 23%,...
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Coatings Preparation. In the preparation of metal mold coating, stir sodium bentonite slurry and a certain amount of water for 10min, then add 4 ~ 10wt% sodium silicate solution to stir evenly, then add 0.1 ~ 0.9wt%CMC solution and phosphate solution to stir evenly, then add refractory aggregate (talc powder, mica powder and boron nitride) to stir for 20min, …
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This study investigated the impact of various thixotropic agents (organically modified hectorite and bentonite clays) on water-based oligomer system rheology.
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This study investigated the impact of various thixotropic agents (organically modified hectorite and bentonite clays) on water-based oligomer system rheology.
WhatsApp: +86 18221755073
The addition of 7 wt% bentonite to the cationic starch matrix promoted high oil resistance with 12 for kit-oil, while 10 wt% bentonite promoted greater pencil hardness, with a value of 8H. …
WhatsApp: +86 18221755073
This study investigated the impact of various thixotropic agents (organically modified hectorite and bentonite clays) on water-based oligomer system rheology.
WhatsApp: +86 18221755073
In the present study, the water vapour and grease resistance properties of paper coating based starch – bentonite clay has been investigated. The clay concentration was 0%, …
WhatsApp: +86 18221755073
It has been determined that the direct effect of water on the coating over a period of more than 2 days leads to a significant decrease in the swelling coefficient of intumescent coatings ...
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Non-ionic surfactants (Rokanol L-10 and Rokacet S-24), polyurethane thickener (DSX 1514), and mineral thickener (bentonite) were also used for stabilization. The influence of individual components on changes in the stability and …
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In this study, AlCrNbSiTi high-entropy alloy (HEA) coatings were prepared by magnetron sputtering at different bias voltages. The effect of bias on coating morphologies, structure, mechanical properties, and resistance to high-temperature water vapor corrosion were studied.
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Biostatic and thixotropic properties of bentonites modified with quaternary ammonium salts (QAS) in a waterborne paint and acrylic lacquer are presented. The fungistatic properties were tested...
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Herein, we present a novel waterproof and oil-resistant coating solution composed solely of polyvinyl alcohol (PVA) and bentonite (BT) nanosheets. When applied to sugarcane paper, …
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BT is a malleable clay with high absorbency, capable of expanding up to 20 times its initial size upon water contact. It is a natural pozzolan [13] and is often categorized into sodium (high-swelling), calcium (low-swelling), and intermediate types containing both sodium and calcium ions.As a result, the properties of mortars and concrete will differ depending on the …
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The size of the dispersion particles determines the parameters of coatings, such as gloss, water resistance, and physical and mechanical properties. It depends primarily on the type of emulsifier used, but also on the other components of the dispersion. ... For the value of 2% in the case of 0.3 g of bentonite and 16% for 0.6 g of bentonite ...
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To improve the anti-wear performances of drilling tools in geological prospecting, WC-10Co4Cr coating spayed via high-velocity oxygen-fuel (HVOF) was prepared on the 1045 steel substrate. Tribological behaviors of WC-10Co4Cr coatings in water-based drilling fluids with different contents of filter reducer and bentonite clay was evaluated by a CSM ball-on-disc …
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Non-ionic surfactants (Rokanol L-10 and Rokacet S-24), polyurethane thickener (DSX 1514), and mineral thickener (bentonite) were also used for stabilization. The influence …
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In the present study, the water vapour and grease resistance properties of paper coating based starch – bentonite clay has been investigated. The clay concentration was 0%, 10%, 15%, 23%, 30%, 40% dan 50% w/w. The composites were prepared by solution casting and coated on the surface of the paper, and analysed using Payne cup method (water vapour …
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The final coated paper demonstrated outstanding oil resistance (kit rating: 12/12), water resistance (Cobb value: 4.23 g/m2), low water vapor transmission rate (100 g/m2·24 h), and improved ...
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Impedance modulus value reached 1.38 × 10 8 Ω cm 2 of silica-based so-gel coating with 1/9 wt% of ZrO 2 and thickness of 25 μm.. Adding 0.91 wt% corrosion inhibitor Ce 3+ loaded in bentonite in the coating effectively delayed corrosion of carbon steel.. The hydrophobic top layer increased the water contact angle from 89° to 115°.
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The inorganic thickener has the advantages of strong thickening property, good thixotropy, wide pH range and good stability. However, because bentonite is an inorganic powder, good …
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Adding 0.91 wt% corrosion inhibitor Ce 3+ loaded in bentonite in the coating effectively delayed corrosion of carbon steel. The hydrophobic top layer increased the water …
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Biostatic and thixotropic properties of bentonites modified with quaternary ammonium salts (QAS) in a waterborne paint and acrylic lacquer are presented. The …
WhatsApp: +86 18221755073
Herein, we present a novel waterproof and oil-resistant coating solution composed solely of polyvinyl alcohol (PVA) and bentonite (BT) nanosheets. When applied to sugarcane paper, this composite paper demonstrates excellent water resistance, with a 64 % water absorption rate, which is 48.4 % lower than untreated paper.
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Adding 0.91 wt% corrosion inhibitor Ce 3+ loaded in bentonite in the coating effectively delayed corrosion of carbon steel. The hydrophobic top layer increased the water contact angle from 89° to 115°. External hydrophobicity and internal corrosion inhibitor resulted in dual protection on carbon steel.
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The inorganic thickener has the advantages of strong thickening property, good thixotropy, wide pH range and good stability. However, because bentonite is an inorganic powder, good absorbency, can significantly reduce the coating surface gloss, …
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This study investigated the impact of various thixotropic agents (organically modified hectorite and bentonite clays) on water-based oligomer system rheology.
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The coatings exhibited better mechanical properties than the simple polyurethane coating, i.e. the wear resistance and the hardness of the polyurethane coating may be enhanced by 57.1% and 14.5% ...
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The influence of bentonite as a suspending agent on the processing and performance of the final enamel product was studied with the aim of prolonging the service life of enamel.
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thickness. However, high content of bentonite clay increased COF and decreased the wear resistance of WC-10Co4Cr coating during the sliding, which resulted from the abrasive action caused by bentonite clay particles. The drilling fluid with 1 wt.% bentonite clay and 3 wt.% filtrate reducers was the optimized
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The 'turning yellow' index is related to the maturity of a mango. Delaying the maturing process can extend the storage period. As shown in Fig. 1 (a), the 'turning yellow' indexes of groups A and B were significantly lower than that of CK. The 'turning yellow' index of group CK reached 52.5% on day 13 of storage, yet groups A and B were at 10% and 5%, …
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