| Title |
Experimental Study on the Plastic Exterior and Staining Prevention of Buildings |
| Authors |
최명환(Choi, Myung-Hwan) ; 최문규(Choi, Moon-Gyu) |
| DOI |
https://doi.org/10.5659/JAIK.2021.37.6.23 |
| Keywords |
Plastic exterior; Staining; Experiments for preventing pollution; Static; Antistatic agents; Sloped wall; Critical angle; Design stage |
| Abstract |
The purpose of this study is to identify the staining factors through experiments with plastics vulnerable to pollution and to propose grounds
of the staining prevention for application in the design stage. A total of 30 prototypes were built for plastic experiments, with eight
thermoplastics and various sloped walls and azimuth angles. The results of the experimental survey by type, angle, azimuth in six phases
over a year are as follows. The staining rate of plastic is proportional to the static amount and surface roughness, and the higher the staining
rate, the more efficient the antistatic agent is. And the staining degree was high from the angle below the critical angle. In order to reduce
the staining rate at critical angles, the results of the application of various antistatic agents showed that conductive inorganic materials were
the most efficient. In addition, the staining rate for each azimuth was proportional to the wind speed, and the higher the staining rate, the
higher the wind speed, the more efficient the antistatic agent was found. These results provide convincing evidence in choosing antistatic
agents, and it is expected that the experimental data collected and the staining factors according to material, angle, and azimuth will be used
as useful grounds to staining prevention in the initial design stage. |