Fabrication of Polytetrafluoroethylene-Reinforced Fluorocarbon Composite Coatings and Tribological Properties Under Multi-Environment Working Conditions.

Currently, few studies have been conducted on the use of fluorocarbon resin (FEVE) and polytetrafluoroethylene (PTFE) as adhesive substrates and lubricating and anti-corrosion fillers, respectively, for the fabrication of PTFE-reinforced fluorocarbon composite coatings. In this paper, the tribological properties of polytetrafluoroethylene-reinforced fluorocarbon composite coatings were investigated through orthogonal tests under various operating conditions. The optimal configuration for coating preparation under dry friction and aqueous lubrication was thus obtained: the optimal filler particle size, mass ratio of FEVE to PTFE, spraying pressure, and curing agent content were 50 μm, 3:4.

Effectiveness of a combination therapy of traditional Chinese medicine and CO laser treatment for condyloma acuminatum.

Background: Condyloma acuminatum (CA) is both highly infectious and frequently recurring and requires long-term, repeated treatments, which seriously affect the physical and psychological health of patients. The purpose of the present study was to investigate the effectiveness of a combination therapy of traditional Chinese medicine and CO laser on CA and the relationship between CA relapse and cellular immunity.

Methods: The study cohort consisted of 160 CA patients who underwent ambulatory treatment between January 2017 and January 2019 in the Department of Dermatology and Venerology of our hospital.