Methyl silicate가 PCM 불소 도막의 내오염성에 미치는 영향에 대한 연구

Abstract

Recently, the city has started to increase the construction of high buildings and buildings which are primarily focused on their appearance. It is important to keep these buildings in good condition not only to keep their value high but also to maintain the beauty of the city. Owners of recently built high buildings have spent a lot of money and time to clean their internal and external surfaces. Therefore, it has been an issue to provide a self-cleaning system to maintain the buildings in their original condition from rain, snow and air pollution. This study presents a solution to reduce maintenance costs by adding a self-cleaning system within a coated panel. This enhanced panel can protect the building from all types of environmental pollutants. First, poly-alkyl silicate was added to highly durable PVDF paint. When this paint contacts water, the poly-alkyl silicate leads to hydrolysis on the surface of the panel. This produces surface modification of the panel and a successful hydrophilic coating on the panel. Second, the coated substrate was dipped in pH6 water to prove the hydrophilic nature of the poly-alkyl silicate on the panel surface. The time and contact angle were observed. The results of this test show the successful self-cleaning surface modification effect of poly-alkyl silicate. Last, a coated panel was exposed to the outdoors to prove its self-cleaning ability and durability. The result of the outdoors exposure shows the successful self-cleaning effect and durability of self cleaning paint with poly-alkyl silicate.