Contact angles and the equilibrium spreading pressures of liquids on hydrophobic solids

Journal Article · Sat Nov 01 00:00:00 EST 1980 · J. Colloid Interface Sci.; (United States)

DOI:https://doi.org/10.1016/0021-9797(80)90508-1· OSTI ID:6753385

Fowkes, F M; McCarthy, D C; Mostafa, M A

The classical concept that spreading on either liquid 1 on a solid or liquid substrate 2 usually involves duplex films has been confirmed for hydrocarbons spreading on either liquid or solids. The adsorption of water onto hydrophobic polymer powder (teflon) is shown to occur only at hydrophilic sites, and not at all on the polymer surface. Contact angles of hydrophobic liquids (such as methylene iodide) on hydrophobic polymer surfaces are shown to be independent of the presence of hydrophilic impurities at levels which appreciably reduce the contact angles of hydrophilic liquids such as water. 25 references.

• OSTI ID: 6753385
• Journal Information: J. Colloid Interface Sci.; (United States), Vol. 78:1
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
HYDROCARBONS
SURFACE PROPERTIES
TEFLON
ADSORPTION
INTERFACES
SURFACE TENSION
WATER
FLUORINATED ALIPHATIC HYDROCARBONS
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROGEN COMPOUNDS
MATERIALS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYETHYLENES
POLYMERS
POLYOLEFINS
POLYTETRAFLUOROETHYLENE
SORPTION
SYNTHETIC MATERIALS
400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)