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When exposed to UV radiation, the treated PTFE will gradually return to its original white color. Exposure to light, abrasion, heat and some oxidizing agents will also degrade the treated surface. [1] [9] The shelf life of treated surfaces may be as high as 3 to 4 months when stored below 5 °C in a dark oxygen- and moisture-free environment. [1]
Surface modification is the act of modifying the surface of a material by bringing physical, chemical or biological characteristics different from the ones originally found on the surface of a material. [1] This modification is usually made to solid materials, but it is possible to find examples of the modification to the surface of specific ...
Plasma modification is one way to alter the surface of biomaterials to enhance their properties. During plasma modification techniques, the surface is subjected to high levels of excited gases that alter the surface of the material. Plasma's are generally generated with a radio frequency (RF) field. Additional methods include applying a large ...
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Surface roughness can be regarded as the quality of a surface of not being smooth and it is hence linked to human perception of the surface texture. From a mathematical perspective it is related to the spatial variability structure of surfaces, and inherently it is a multiscale property.
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