Contact angles and Surface Free Energy

Determining wetting characteristics of solids and liquids. Static and dynamic measurements.

Methods

• Image capture contact angle measuring instrument
• Surface free energies,
• Interfacial energies ( surface tension),
• Advanced and receded contact angles.
• Pendant drop.

Applications of Contact angle and surface free energy analysis

• Images to demonstrate the matching of ink and substrate wetting characteristics to avoid ‘bleed’ or ‘bead’.
• Technical material property determination for specification, QC or indication of coating faults.
• Detection of surface treatments and ageing on polymers and materials
• Adsorption studies for paper, wood, waterproof-breathable fabrics etc.
• Wetting characteristics of single fibres for composite development.
• Personal care products
• Kinetic interfacial energy studies for surfactants used in various processes including polymerisation.

The MSG advantage

• Software enables more accurate test methods than other similar instruments
• Kinetic studies by movie function, up to 50 frames/second
• Wettability envelopes
• Ambient and elevated temperature capability for solids and liquids (up to 400 °C)