QUICK AND ACCURATE METHOD TO STUDY DEMULSIFICATION INTRODUCTION The effectiveness of a demulsifier depends on many parameters including the amount of water produced, the quality of the oil/water interface, the quality of the water produced and the separation kinetics. The usual technique used to evaluate the effectiveness of a demulsifier is the Bottle Test. In
Identification of the instability phenomenon of an emulsion INTRODUCTION Emulsions are unstable colloidal systems that undergo many destabilisation phenomena (coalescence, flocculation, creaming, etc.) that can be due to various causes (lack of surfactant to cover the interface, attractive forces, etc.). Therefore, it is very important for the formulator to know the origins of these processes
From an immiscible water-oil system to the ultralow interfacial tension of a microemulsion Determining IFT in a range of six decades with one and the same instrument In industrial applications such as enhanced oil recovery (EOR), pharmaceutics, or cosmetics, it is often necessary to mobilize and transport hydrophobic substances in aqueous media. The ideal way
Foam stability and foam structure under high pressure for tertiary oil production Foam analysis under pressure up to 35 MPa with a new measuring instrument Foam properties such as stability, structure, foamability and bubble size distribution depend, among other things, on the type and phase behavior and concentration of the stabilizing surfactant, on the salt
Development of customized demulsifiers Interfacial rheological measurements on crude oil emulsions The process of secondary and tertiary oil recovery leads to the formation of water-in-oil (w/o) emulsions. Demulsifiers split these emulsions, thus enabling dewatering and desalination of the crude oil. Dewatering is necessary in order to save energy required for processing crude oil, to avoid
Development of a measuring method for characterizing the surface of Pressure Sensitive Adhesives (PSA) Hydrophobic Recovery and Wilhelmy measuring method with acrylic-acid-based products The characterization of the surface properties of Pressure Sensitive Adhesives (PSA) is an important part of the product development and optimization. Variable concentrations of the acrylic acid content enable the surface polarity
Predicting coatability Contact angle and surface tension results as a basis for targeted development of coating formulations An effective and reliable method for assessing and predicting coating performance is of critical importance in new material development/quality control. Particularly in the case of multi-layer systems, careful fine-tuning of individual components is essential to achieving good wetting
Particle size measurement with S-MLS in higly viscous media Introduction Size determination of objects embedded in highly viscous media, such as gels, is very limited with Dynamic Light Scattering (DLS). This application note shows how Turbiscan® technology based on Static Multiple Light Scattering (SMLS) can easily and quickly determine the mean diameter of objects in
Ultra-fast determination of ink stability Introduction Inkjet formulations contain pigment particles that destabilize over their shelf life, leading to instability in forms of particle sedimentation and packing. Such events can cause poor product performance and even the clogging of inkjet ports, requiring instrument shutdown while the printing head is cleaned. While mixing by jet head
EFFECT OF ELECTROLYTE INTRODUCTION ON PARENTERAL EMULSION STABILITY INTRODUCTION Lipid injectable emulsions for therapeutic nutrition must cover all the individual needs and are an essential source of fatty acids, as well as a daily source of calories. The therapeutic nutrition can be done with successive or simultaneous administration of lipid emulsion, electrolyte and minerals. The