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Fluorocarbon polymers surface free energies

As might be expected, the chemical changes induced by etching the fluorocarbon polymer in air cause a large increase in the surface free energy of... [Pg.107]

The higher surface free energy value of 31.5 erg/cm, is associated with polymers based on C7 diol with a fluorocarbon content at 58 wt%. When the fluorocarbon content increases to 64 wt% as in polymers based on C9 diol the surface free energy decreases to 25.5 erg/cm. Further increase in fluorocarbon content (C, diol polymer 7) does not result in decrease in surface free energy. [Pg.373]

The intensity of the free energy is proportional to the intermolecular forces of the material. The free surface energy of liqnids and solids is called surface tension. It can be expressed in MJ/m or dyn/cm. Valnes of surface tension in polymers range from 20 dyn/cm for fluorocarbons to 46 dyn/cm for nylon. [Pg.539]

See other pages where Fluorocarbon polymers surface free energies is mentioned: [Pg.33]    [Pg.318]    [Pg.330]    [Pg.102]    [Pg.105]    [Pg.108]    [Pg.112]    [Pg.21]    [Pg.61]    [Pg.21]    [Pg.61]    [Pg.109]    [Pg.327]    [Pg.165]    [Pg.266]   
See also in sourсe #XX -- [ Pg.26 , Pg.105 ]



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