Comparative study of coating agents for prevention of fine-dust-induced light transmittance reduction in greenhouse covering materials

Journal of Agricultural Engineering

Soojin Jun¹  Ye-jin Seo²  Jong-hyuk Lee²  Young-joon Jeong²  Byung-hun Seo²  Won Choi³  Seung-Jae Lee⁴  Eunmi Hong⁵ 

[1] Department of Human Nutrition, Food and Animal Sciences, University of Hawaii at Manoa, Honolulu, HI;Department of Landscape Architecture and Rural Systems Engineering, College of Agriculture and Life Sciences, Seoul National University, Seoul;Department of Landscape Architecture and Rural Systems Engineering, Research Institute of Agriculture and Life Sciences, Global Smart Farm Convergence Major, College of Agriculture and Life Sciences, Seoul National University, Seoul;National Center for AgroMeteorology, Seoul;School of Natural Resources and Environmental Science, Kangwon National University, Gangwon-do;

关键词: Greenhouse management;    hydrophobic surface;    particulate matter;    polyethylene film.;   

DOI  :  10.4081/jae.2022.1334

来源: DOAJ

【 摘 要 】

Recently, rapidly growing industry and abnormal climate change have generated high concentrations of fine dust. This fine dust settles on greenhouses and hinders photosynthesis of the plants within. In this study, the greenhouse environment was reproduced using fine dust devices, and the fine dust adhesion and washing efficiency were compared. The optimal coating agent was selected by performing a coating experiment to assess the changes in the light transmittance and contact angles of eight greenhouse coatings incorporating different coating agents. The most pronounced adhesion rate was observed in an ion humidification test for (NH4)2SO4. The coating agent with Teflon, which exhibited the largest contact angle in this study, had the highest washing efficiency, followed by the coating agent with the highest polydimethylsiloxane ratio using isopropyl alcohol (IPA) as a solvent, and the coating agent with the highest polydimethylsiloxane using water as a solvent. However, the ingredients added to the agents with Teflon or IPA were judged inappropriate for greenhouse use due to environmental reasons. Therefore, the coating agent with the highest polydimethylsiloxane using water as a solvent, which is the most suitable coating agent and satisfies both the washing efficiency and contact angle requirements, is expected to be used as a greenhouse coating agent to prevent light transmittance reduction in greenhouses due to fine dust accumulation.

【 授权许可】

Unknown