The "forces" of liquids: Various interfacial phenomena such as cleaning, wetting, penetration, foaming, and defoaming are due to the effects of the surface and interfacial tension of liquids.
Liquids are in a state where molecules can move relatively freely. Focusing on the molecules present at the surface (more precisely, the "interface" between the liquid and the atmosphere), intermolecular forces act not only between the molecules on the bulk side but also between the molecules in the atmosphere. However, due to the overwhelmingly high density of the molecules on the bulk side, the molecules present at the surface are constantly being pulled inward (toward the bulk side). As a result, it appears that a tension is acting to contract the surface. This is known as "surface tension" (more precisely, interfacial tension). Our company offers contract measurements for contact angle, surface and interfacial tension, friction and wear analysis, adhesion and film peeling analysis, zeta potential, anti-fogging evaluation, and more. Please feel free to contact us when you need our services. *For more details, please refer to the PDF document or feel free to reach out to us.
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Our contact angle meters and surface tension meters have a wealth of delivery records and publications. We also provide equipment related to interfaces, such as friction meters, zeta potential meters, adhesive film peeling analysis devices, and LB film production devices, contributing multifacetedly to our customers' research, development, and quality control. ★ We accept commissioned measurements. Our commissioned measurements utilize high-performance equipment, and dedicated measurement personnel handle everything from measurement to reporting. We strive to provide reliable data that serves as evaluation criteria for material assessment. - Static/Dynamic/Contact Angle (wetting properties, liquid repellency, cleaning evaluation, surface free energy analysis) - Static/Dynamic Surface and Interfacial Tension (permeability, emulsification, solubility, wettability, foaming) - Lamella Length (foam stability, coating pickup, liquid drainage, wicking evaluation) - Powder Wettability (wettability of powders, wettability due to surface treatment and roughness of powders, wettability evaluation based on powder penetration speed) - Static/Dynamic Friction Wear Analysis (friction wear, lubricity, stickiness, slip properties) - Tensile Testing (adhesion, angle dependence, light peeling, high-speed peeling) - Zeta Potential (particle size distribution, dispersion stability, aggregation, sedimentation) - Anti-fogging Evaluation (degree of fogging, transparency, condensation)