Results 31 to 40 of about 2,770 (201)
Triboelectrification of pharmaceutical powders by particle impact [PDF]
International Journal of Pharmaceutics, 2007 Pharmaceutical powders are very prone to electrostatic charging by colliding and sliding contacts with walls and other particles. In pharmaceutical formulation processes, particle charging is often a nuisance and can cause problems in the manufacture of products, such as affecting powder flow, and reducing fill and dose uniformity.
Watanabe, Hideo +7 more
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Effect of detergent on powder triboelectrification
European Journal of Pharmaceutical Sciences, 2002 Triboelectrification of pharmaceutical powders during processing and manufacture may cause adhesion/cohesion effects, reduce fill and dose uniformity, affect powder flow and packing behaviour and even obstruct the manufacturing of the product. This paper presents the results of an experimental study on the triboelectrification of microcrystalline ...
Matti, Murtomaa +3 more
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Electric charge limits on settled powders [PDF]
, 2016 In flows of dry particulate systems, electric charge is generated on particle surfaces by their collision with walls and with other particles. Charge build-up on single particles can yield local charge values high enough to surpass the limiting ...
Castellanos Mata, Antonio +2 more
core +1 more source
Dust emission by powder handling: Influence of the hopper outlet on the dust plume [PDF]
, 2011 Dust generation in solids handling involving free fall of bulk materials and impacts on a stockpile can cause many problems in industry and be a great danger for operators health. This paper describes an experimental set up to characterize the dust plume
Ansart, Renaud +3 more
core +2 more sources
Materials & Design, 2021 Superhydrophobic surfaces integrated with liquid self-repelling property have great application potential, nevertheless, it remains a major challenge for simultaneously achieving super-robust feature and extreme superhydrophobicity. In this work, a super-
Hua Zhou +5 more
doaj +1 more source
Fundamental theories and basic principles of triboelectric effect: A review
Friction, 2018 Long-term observation of the triboelectric effect has not only proved the feasibility of many novel and useful tribo-devices (e.g., triboelectric nanogenerators), but also constantly motivated the exploration of its mysterious nature. In the pursuit of a
Shuaihang Pan, Zhinan Zhang
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Why do Particle Clouds Generate Electric Charges?
, 2015 Grains in desert sandstorms spontaneously generate strong electrical charges; likewise volcanic dust plumes produce spectacular lightning displays. Charged particle clouds also cause devastating explosions in food, drug and coal processing industries ...
AA Mills +31 more
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Advanced Science, 2023 The liquid‐solid contact electrification mechanism has been explored in the aqueous solution system, but there are few systematic studies on oil‐solid triboelectrification. Herein, an oil droplet triboelectric nanogenerator (Oil‐droplet TENG) is designed
Song Xiao +7 more
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Charging changes contact composition in binary sphere packings
, 2017 Equal volume mixtures of small and large polytetrafluorethylene (PTFE) spheres are shaken in an atmosphere of controlled humidity which allows to also control their tribo-charging.
Schella, Andre +2 more
core +1 more source
Zinc Oxide-Based Rotational–Linear Triboelectric Nanogenerator
Applied SciencesIn this study, we evaluate a prototype harvesting device that converts rotational motion to linear motion for harvesting rotational energy. Triboelectric materials are attached to the parts of the device that execute linear motion, resulting in a contact-
Achilleas Bardakas +2 more
doaj +1 more source