Study on acrylate peelable nuclear detergent for film formation at low temperature

Zhang, Kun; Wang, Shanqiang; He, Zhongyi; Wu, Meixiao; Xing-wei, Cao

doi:10.1016/j.apradiso.2020.109187

Cited by 17 publications

(8 citation statements)

References 12 publications

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“…To seek the key factors affecting the performance of the waterjet propulsion device, the orthogonal test is formulated. e orthogonal method is mature and widely used in many fields such as energy [28], chemistry [29], pharmacy [30], and environment [31]. e hydraulic performance and flow characteristics of the selected and original schemes are compared, and the suppression mechanism is analyzed.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Rotating Stall Phenomenon and Optimization in Mixed‐Flow Waterjet Propulsion Device

Luo

Zhang

et al. 2020

Advances in Materials Science and Engineering

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The rotating stall is a kind of flow phenomenon in the impeller harming the navigation speed of vessels propelled by a waterjet propulsion device when the waterjet propulsion device operates at the small flow rate conditions. The numerical simulated hydraulic performance was compared with experimental results so that the reliability of the CFD method was verified. The grooves are proposed before the inlet of an impeller to suppress the rotating stall. The orthogonal experiment is designed to seek the appropriate values of the parameters such as the length, width, depth, and number of the groove. The results show that the width of groove has the greatest influence on the performance of the device, followed by the number, the depth, and the length. The width, number, depth, and length of the selected groove scheme are 3.10 × 10−2D, 72, 3.10 × 10−2D, and 7.75 × 10−2D, respectively. At the rotating stall conditions, the selected groove scheme is numerically calculated. In contradistinction to the original scheme, it is found that the groove can improve the flow in the impeller and enhance the head of valley point condition, but the efficiency drops due to the increasing local hydraulic loss near the groove. When the groove is installed, the positive slop region on the flow rate-head curve disappears related to the static pressure difference on the blade, especially depending on the static pressure on the suction side. The flow pattern on the span surface of the vortex core is smooth, and then, the head increases. On the contrary, the head decreases. The outcome is beneficial to improve the performance of the waterjet propulsion device and enrich the rotating stall theory.

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Section: Introductionmentioning

confidence: 99%

Investigation of Rotating Stall Phenomenon and Optimization in Mixed‐Flow Waterjet Propulsion Device

Luo

Zhang

et al. 2020

Advances in Materials Science and Engineering

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“…Hence, given that the SEBS molecular chain goes from stretching to shrinking states, followed by tight aggregation together during solvent volatilization, the unevenly distributed stress eventually gets released by cracking, especially after inducing the high-surface-energy CNT@PANI absorber. The long-chain acrylate with high surface energy was used as a blending modification component to enhance the miscibility and molecular chain entanglement of SEBS under H-bonds’ action (as depicted in Figure b), thus improving the surface energy of SEBS and endowing the whole mixture with good cohesion and firm adhesion. , Furthermore, this critical H-bonds interaction was investigated by a Fourier transform infrared (FTIR) spectrometer (Figure c) . The stretching vibration band of the CO peak of the long-chain acrylate obviously shifted from 1730 to 1725 cm –1 and showed a marked increase in amplitude on increasing the amount (from 0 to 8 wt %) of the long-chain acrylate in SEBS, which clearly reveals the H-bond formation between acrylate and SEBS .…”

Section: Resultsmentioning

confidence: 99%

Peelable Microwave Absorption Coating with Reusable and Anticorrosion Merits

Li,

Shi,

Zhang

et al. 2024

ACS Appl. Mater. Interfaces

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The peelable microwave absorption (MA) coating with reversible adhesion for stable presence on substrates and easy release without any residuals is highly desired in temporary electromagnetic protection, which can quickly enter and disengage the electromagnetic protection state according to the real-time changeable harsh surroundings. On the contrary, with the incorporation of abundant absorbent to achieve excellent MA ability, the tunable adhesion and sufficient cohesion are extremely challenging to fulfill the above requirement. The reported peelable coatings still have problems in controlling adhesion/cohesion strength and coating release, facing substantial residuals after peeling even using complex chemical modification or abundant additives. Herein, a peelable MA coating based on the block characteristics of polar and nonpolar segments of poly(styrene-(ethylene-co-butylene)-styrene) (SEBS) is successfully developed. The polyaniline-decorated carbon nanotube as a microwave absorber plays a positive influence on the adhesion/cohesion of the coating due to bonding interaction. The competitive effective absorption bandwidth (EAB) of 8.8 GHz and controllable yet reversible adhesion release on various substrates and complex surfaces have been achieved. The reusability endows peelable MA coating with 93% retention of EAB even after ten coating-peeling cycles. The coating with excellent chemical and adhesion stability can effectively protect substrates from salt/acid/alkali corrosion, showing over 98% retention of EAB even after 8 h of accelerated corrosion. Our peelable MA coating via a general yet reliable approach provides a prospect for temporary electromagnetic protection.

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“…During the decontamination process, an EC sol layer formed after the sols had flowed and coated the different surfaces of the contaminants. 16 As shown in Fig. 10 , the uranyl nitrate would be wrapped and gradually dissolved into anhydrous ethanol in the sols and be diffused into the EC sols.…”

Section: Resultsmentioning

confidence: 99%

“…[17][18][19][20][21] However, there are few reports on stripping lm decontamination at temperatures below 0 °C. 16,22 It is urgent to develop a stripping lm decontaminating material to be applied below 0 °C because of the poor spraying properties in a low-temperature environment. At the same time, it is very important to minimize the volume of decontaminating lm in order to reduce the costs of storage, transportation and disposal aer decontamination.…”

Section: Introductionmentioning

confidence: 99%

Rheological and radioactive decontamination properties of ethyl cellulose sols in green solvents at a temperature below 0 °C

Pan,

Lin,

Zhang

et al. 2024

RSC Adv.

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Study on acrylate peelable nuclear detergent for film formation at low temperature

Cited by 17 publications

References 12 publications

Investigation of Rotating Stall Phenomenon and Optimization in Mixed‐Flow Waterjet Propulsion Device

Investigation of Rotating Stall Phenomenon and Optimization in Mixed‐Flow Waterjet Propulsion Device

Peelable Microwave Absorption Coating with Reusable and Anticorrosion Merits

Rheological and radioactive decontamination properties of ethyl cellulose sols in green solvents at a temperature below 0 °C

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