Dry powder charging
Particle interactions during dry powder mixing and their effect on
2024年4月1日 Electrostatic spray deposition (ESD) is one of the emerging dry spraying deposition techniques that shows promising results by charging fluidized particles and Electrostatic charging of powders becomes important, when particles become smaller, especially for fine powders at micron or submicron size Charging of powders causes strong particle adhesion and consequently difficulties in Electrostatic Charging of Fine Powders and Assessment 2007年5月24日 Electrostatics and triboelectrification phenomena in dry powder inhalers (DPI) are not well understood, but as shown in this study they may play an important role Using Investigation of triboelectric charging in dry powder inhalers using 2009年5月1日 A multivariate experimental design framework was employed to investigate the effects of various formulation factors on the charging of the two drugs; it was shown that Investigation of electrostatic charging phenomena in dry powder
Insights into the Role of Electrostatic Forces on the Behavior of Dry
2006年5月16日 Electrostatic charges influenced dry powder agglomeration tendency and even doubled the amount of agglomerates in blended powders Because oppositely charged 2019年4月9日 The performance of carrierbased dry powder inhaler (DPI) formulations can be critically impacted by interfacial interactions driven by triboelectrification Therefore, the aim of the present work was to understand how TriboCharging Behaviour of Inhalable Mannitol Blends 2014年1月24日 In particular, particles generated from dry powder inhalers (DPIs) undergo triboelectrification from contact with each other and solid surfaces during their manufacture Effect of Crystallinity on Electrostatic Charging in Dry Powder 2017年4月4日 Operations such as mixing, milling, and conveying involve the movement of the powder against surfaces and therefore can lead to charging via friction, commonly known as Surface Chemistry and Humidity in Powder Electrostatics: A
Discrete Element Method Evaluation of Triboelectric
2023年6月18日 Carrierbased inhalation formulations used in Dry Powder Inhalers (DPIs) are composed of two solid components (ie, the active pharmaceutical ingredient (API) and the carrier) with significantly different 2007年6月1日 In dry powder inhaler (DPI) field, there are many methods which are capable of measuring electrostatic charge carried by a DPI aerosol such as using a grid probe (Murtomaa et al, 2003), however Investigation of triboelectric charging in dry powder inhalers Optionally, this charge expressed in Coulomb is divided by the sample powder mass M of the collected powder to obtain a charge density q expressed in Coulomb per kilogram The sample powder mass may be known upfront or GranuCharge: The New Powder triboelectric charger2020年12月28日 However, the formulation of dry powder for pulmonary delivery is often challenging due to restrictions on aerodynamic size and the lung’s lower tolerance capacity in comparison with an oral route of drug administration it Dry Powder for Pulmonary Delivery: A Comprehensive
Powder Transfer System Powder Conveying System Powder
Indpro’s powder transport system has a compact and modular design, which fits well to where the powder must be transferred, where generally space is a limitation This power transfer system is a significant enhancement to any conventional, mechanical or pneumatic material conveying process and provides total dustfree means of material transfer2019年4月9日 Purpose The performance of carrierbased dry powder inhaler (DPI) formulations can be critically impacted by interfacial interactions driven by triboelectrification Therefore, the aim of the present work was to understand how distinct API particle characteristics affect the charging behaviour of blends intended for DPI delivery Methods Salbutamol sulphate (SBS) TriboCharging Behaviour of Inhalable Mannitol Blends with 2016年4月30日 Pharmaceutical solids are usually insulators and thus they are likely to carry an electrostatic charge during powder handling processes (Askal, 1997, ElSadek et al, 1993, Khaled, 2008)In industrial handling processes with bulk solids, the materials are very likely to be charged and consequently the concept of an electrically neutral particle is scarcely true (Glor, Review A review of factors affecting electrostatic charging of 2024年8月20日 The strategic reserve of investment funds One of the elements of private equity funds’ internal kitchen is the socalled dry powderThe article will explain what it is, how it works, and why the significant accumulation of uninvested capital is important for funds, including its implications for fundraising, deal activity, and the competitive environment amidst economic Dry Powder in Private Equity: How It Works and Why It Matters
Surface roughness effects on the tribocharging and mixing
2014年9月1日 Unfortunately tribocharging of powder and powder blends is pretty hard to predict since there are many impacting factors Sign and magnitude of the arising charge depends on for example particle size and shape [5] , surface roughness [6] , [7] , nature and work functions [8] , impurities [9] , [10] , [11] , amorphicity [12] , contact material [13] , [14] , relative humidity [15] 2007年5月24日 Dry powder inhalers (DPI) are important delivery devices for respirable medicines (Timsina et al, 1994)As the name suggests, DPI formulations consist of dry blends, typically consisting of micronized drug and larger carrier particles (Telko and Hickey, 2005)Carriers, often lactose monohydrate, reduce drug agglomeration and aid in metering Investigation of triboelectric charging in dry powder inhalers 2016年5月30日 Electrostatic powder coating also yields higher transfer efficiencies when compared to dry powder coating without utilizing electrostatic charge (or nonelectrostatic powder coating); generally 20% higher transfer efficiencies are seen with the application of 40–100 kV charging voltage, with these efficiencies increasing with decreasing particle size of coating Electrostatic powder coating: Principles and pharmaceutical 2022年2月1日 The effect of the hydrophilicity of the SiO 2 guest particles on the quality of the dry coating of PP host particles was investigated with respect to the integral charge of the dry coated powder Furthermore, the flowability, crystallization behavior and degree of coverage (DOC) were investigated to determine the influence of the increased charge on these topicsTemperature influence on the triboelectric powder charging during dry
Effect of crystallinity on electrostatic charging in dry powder
Purpose: This study aimed to characterize inherent charge generated by micronsized drugonly formulations of amorphous and crystalline salbutamol sulfate (SS) Methods: Amorphous SS was produced by spraydrying whilst crystalline SS was produced by conditioning spraydried SS with supercritical CO2 and menthol Electrostatic charge of the powders was characterized in two To study if electrostatic charge initially present in mannitol powder plays a role in the generation of aerosols, mannitol was unipolarly charged to varying magnitudes by tumbling the powder inside containers of different materials Does electrostatic charge affect powder aerosolisation?2010年1月8日 Dry powder inhalers (DPIs) Aerosol charge profiles were dependent on the drug, excipients (eg lactose carrier), and inhaler [18–20, 22] Respirable particles were estimated to carry charge levels high enough to affect deposition [18, 22] Charge separation occurred from the dispersion of aggregatesElectrostatics of pharmaceutical inhalation aerosols2024年5月6日 dry powder coating, flowability, dry coating, bulk solid properties, flow additives, Cohesive powder, process simulation, charge Modifier Editorial on the Research Topic Dry powder coating in manufacturing processes Dry powder coating is becoming increasingly prevalent, whereby larger ‘host’ particles areEditorial: Dry powder coating in manufacturing processes Frontiers
Effect of Relative Humidity on the Electrostatic Charge Properties
2008年2月1日 The distinct trends of charging of aerosols from Pulmicort® and Bricanyl® Turbuhalers® was explained by differences in hygroscopicity and other physicochemical factors between the two drugs PurposeAt present, there is no published data examining the effect of relative humidity on the electrostatic charges of dry powder inhaler aerosols2024年2月19日 Jiangyin Powder Mill Technology Co, Ltd Is mainly application in a full range of powder field, from the unit to the system, from the crushing, conveying, mixing, sieving to granulation, relates to production areas including food additives, baking ingredients, pharmaceutical intermediate, health food, chemical raw materials and other industriesDry Chemical Powder Mixing Machine Equipment Mill Mixer1993年5月1日 The delivery efficiency of drypowder products for inhalation is dependent upon the drug formulation, the inhaler device, and the inhalation technique Dry powder formulations are generally produced by mixing the micronised drug particles with larger carrier particles These carrier particles are commonly lactoseCharging of Solids and Powders ScienceDirectThe EVERSAFE range of dry powder extinguishers is certified to BS EN 3 and is manufactured under an ISO 9001 approved Quality System Extinguishers are available in a wide range of sizes The cylinders are fully deep drawn from cold rolled steel, and pressure tested to twice the extinguisher’s working pressure Cylinders are externally coated with polyester (with MED Dry Powder (ABC) Stored Pressure Type Eversafe
New technologies for safe and contained powder handling in the
Powder handling plays a major role in the design and the operation of an API facility, and can often become the “bottle neck” of the plant Previously, manually loading powder through a manhole was in most cases the preferred method for charging process equipments Therefore, problems related to containment, safety2014年1月24日 Investigation of triboelectric charging in dry powder inhalers using electrical low pressure impactor (ELPI) Telko MJ, Kujanpaa J, Hickey AJ Int J Pharm, (2):352360 2006 MED: Effect of relative humidity on the electrostatic charge properties of dry powder inhaler aerosols Kwok PC, Chan Effect of crystallinity on electrostatic charging in dry powder 2022年3月8日 What is the Fire Extinguisher Recharging Process? Here is what you can expect when your fire extinguisher is recharged Below is not a guide for recharging a fire extinguisher but an overview so that you can understand the process The extinguisher is depressurized completely, and the agent is removed from the cylinderFire Extinguisher Recharging: What Everyone Should Knowdry powder coating, flowability, dry coating, bulk solid properties, flow additives, Cohesive powder, process simulation, charge Modifier Editorial on the Research Topic Dry powder coating in manufacturing processes Dry powder coating is becoming increasingly prevalent, whereby larger ‘host’ particles areEditorial: Dry powder coating in manufacturing processes Frontiers
Patching over your powder charge then patching your ball
2024年11月8日 I was watching Dennis Pritchard over on YouTube and he runs a dry patch down over his main powder charge then a heavily lubed patch with his round ball Forums New posts forums What's new New posts Latest activity Members Registered members Current visitors Log in RegisterThe dry chemical extinguishing agent used in Firetrace Dry Chemical SelfContained Automatic Indirect Fire Suppression Units is Mono Ammonium Phosphate (NH 4 H 2 PO 4), also known as ABC or multipurpose powder ABC Powder is included in NFPA17 and has been evaluated and approved for use in occupied areas, provided the proper safetyDESIGN, INSTALLATION, OPERATION, AND MAINTENANCE 2017年5月24日 Purpose This work investigated the effect of relative humidity (RH) on bipolar electrostatic charge profiles of dry powder inhaler aerosols using the Bipolar Charge Analyzer (BOLAR) Methods Two commercial products, Pulmicort® (400 μg, budesonide) and Bricanyl® (500 μg, terbutaline sulfate) Turbuhaler®, were used as model dry powder inhalers (DPIs) in Effect of Relative Humidity on Bipolar Electrostatic Charge Profiles of Investigation of the influence of storage relative humidity (RH) on the aerosolisation efficiency and triboelectrification of carrier based dry powder inhaler (DPI) formulations using the next generation impactor (NGI) in vitro methodology and the electrostatic low pressureimpactor (ELPI) found that increased storage RH resulted in a reduction in net charge to mass ratio with the Investigation of Electrostatic Behavior of a Lactose Carrier for Dry
Powder Coating 101: How Does It Work? Metaltech
It uses dry powder and an electric charge to create a final finish Polymer resins, curatives, pigments and leveling agents are used to form the powder These ingredients are melted together and then ground to a powder similar in texture to baking flour Powder coat “paint” comes in numerous colors and decorative textures2022年2月1日 Dry particle coating for surface functionalization is not limited to the application of flow enhancers One can think of many more types of surface functionalization including coloring and, thus Temperature influence on the triboelectric powder charging during dry 2007年6月1日 In dry powder inhaler (DPI) field, there are many methods which are capable of measuring electrostatic charge carried by a DPI aerosol such as using a grid probe (Murtomaa et al, 2003), however Investigation of triboelectric charging in dry powder inhalers Optionally, this charge expressed in Coulomb is divided by the sample powder mass M of the collected powder to obtain a charge density q expressed in Coulomb per kilogram The sample powder mass may be known upfront or GranuCharge: The New Powder triboelectric charger
Dry Powder for Pulmonary Delivery: A Comprehensive
2020年12月28日 However, the formulation of dry powder for pulmonary delivery is often challenging due to restrictions on aerodynamic size and the lung’s lower tolerance capacity in comparison with an oral route of drug administration it Indpro’s powder transport system has a compact and modular design, which fits well to where the powder must be transferred, where generally space is a limitation This power transfer system is a significant enhancement to any conventional, mechanical or pneumatic material conveying process and provides total dustfree means of material transferPowder Transfer System Powder Conveying System Powder 2019年4月9日 Purpose The performance of carrierbased dry powder inhaler (DPI) formulations can be critically impacted by interfacial interactions driven by triboelectrification Therefore, the aim of the present work was to understand how distinct API particle characteristics affect the charging behaviour of blends intended for DPI delivery Methods Salbutamol sulphate (SBS) TriboCharging Behaviour of Inhalable Mannitol Blends with 2016年4月30日 Pharmaceutical solids are usually insulators and thus they are likely to carry an electrostatic charge during powder handling processes (Askal, 1997, ElSadek et al, 1993, Khaled, 2008)In industrial handling processes with bulk solids, the materials are very likely to be charged and consequently the concept of an electrically neutral particle is scarcely true (Glor, Review A review of factors affecting electrostatic charging of
Dry Powder in Private Equity: How It Works and Why It Matters
2024年8月20日 The strategic reserve of investment funds One of the elements of private equity funds’ internal kitchen is the socalled dry powderThe article will explain what it is, how it works, and why the significant accumulation of uninvested capital is important for funds, including its implications for fundraising, deal activity, and the competitive environment amidst economic 2014年9月1日 Unfortunately tribocharging of powder and powder blends is pretty hard to predict since there are many impacting factors Sign and magnitude of the arising charge depends on for example particle size and shape [5] , surface roughness [6] , [7] , nature and work functions [8] , impurities [9] , [10] , [11] , amorphicity [12] , contact material [13] , [14] , relative humidity [15] Surface roughness effects on the tribocharging and mixing 2007年5月24日 Dry powder inhalers (DPI) are important delivery devices for respirable medicines (Timsina et al, 1994)As the name suggests, DPI formulations consist of dry blends, typically consisting of micronized drug and larger carrier particles (Telko and Hickey, 2005)Carriers, often lactose monohydrate, reduce drug agglomeration and aid in metering Investigation of triboelectric charging in dry powder inhalers 2016年5月30日 Electrostatic powder coating also yields higher transfer efficiencies when compared to dry powder coating without utilizing electrostatic charge (or nonelectrostatic powder coating); generally 20% higher transfer efficiencies are seen with the application of 40–100 kV charging voltage, with these efficiencies increasing with decreasing particle size of coating Electrostatic powder coating: Principles and pharmaceutical