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To explore the effect of inner surface treatments on the thermal performance of grooved heat pipes, a series of experiments were carried out in this work. The outer diameter and length of the grooved circular heat pipes used in these experiments were 6 and 190mm. The wettability of the inner surface of grooved heat pipes were varied by chemical oxidation treatments. Since the contact angle was depending...
A rather simple method to prepare a gradient wettability coating surface was proposed. The gradient surface with contact angle from 12.0° to 85.3° was prepared by slowly adding hexamethoxy methyl melamine (HMMM) and subsequently fluoro-contained acrylic polymer into an organic-inorganic hybrid hydrophilic polymer synthesized by Tetraethoxysilane (TEOS) and Acrylic acid (AA) while gradually lifting...
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