The prepared superhydrophobic coating had a maximal water contact angle of 152° and a best corrosion resistance since the coating was unwetted in the corrosion solution and could prevent the corrosion media from penetrating into the zinc substrate.
The fluorination coating can induce super water and oil repellencies of Ag wires, i.e., the maximal values of contact angle are 153.8° (water) and 146.2° (ethylene glycol, EG).
With the consistent lordotic angle and maximal contact of the cage-bone interface, the peak stress of the DPC was mapped on the whole contact area of the endplate, the SLC on the periphery of posterior interface, and the TPC on the central edge of posterior interface.
With the consistent segmental lordosis and maximal contact of the cage-bone interface, the rotational angle of the upper vertebra was calculated, as compared to the intact model, under various loading conditions.
The advancing contact angle is the maximum stable angle, whereas the receding contact angle is the minimum stable angle.
The error of measurements on homogenous surfaces was generally lower, but the maximal standard deviation in one case reached 1.57 for a contact angle of 14.07° (Table 1) which was 11.15%.
After TEOS impregnation, and its surface contact angle of MCNTFC is much larger than 90°, and the corresponding maximal water absorption rate is decreased by more than 40%.
In the event of physiological loading and maximal contact on the cage-bone interface, a stand-alone two-part fusion cage model has minimal slip displacement and rotational angle under compression, flexion, extension, lateral bending and torsion, as compared with the traditional cages, even with the additional posterior fixation.
The disagreement between the calculated and measured water contact angles stems mostly from the conservative way of estimating the solid surface fractional area: the above given value of f S corresponds to the maximal surface fraction that can be wetted and, thus, the estimated θ C represents the lower bound of the expected water contact angle.
Contact angle analysis was conducted by a contact angle meter.
