Application of optical properties of the (3-methoxypropyl)silsesquioxanes hybrid films for green house

AGRO 77

Lijiang Hu1, Weijun Wang, hulijiang2006@126.com2, and Yunlong Liu, hulijiang2006@126.com2. (1) Department of Applied Chemistry, Harbin Institute of Technology, Box 713, Harbin, 150001, China, (2) School of Physics Science & Information Technology, Liaocheng University, Liaocheng, 252059, China
(3-methoxypropyl)silsesquioxanes(MS) derived from hydrolytic condensation of (3-methoxypropyl)trimethoxysilane (MPMS) and modified with tetraethoxysilane (TEOS) were prepared by sol-gel process. The Ormosil thin films based on MS and MST (f-VS and f-VST) were coated on glass by the dip-coating method. The MS structural characteristics and the morphology were characterized, by Fourier transform infrared (FTIR) and a scanning probe microscope (SPM) device. The optical behavior of the films was studied by a UV-VIS-NIR scanning spectrophotometer (SSP). The f-MS films showed the largest UVR absorbs in a range of 200-300 nm wave length. The average transmittance of the coatings within 400-700 nm band can be increased up to more than 90%. The effects of TEOS contents on the optical properties and their applications in agriculture were discussed. The hybrid film with 20% TEOS fraction had the optimum antireflectivity, and can be used as antireflective coating in the sun-beam gathering of green house.
 

New Developments and Issues in Agrochemical Sciences
8:00 AM-11:00 AM, Monday, August 20, 2007 BCEC -- Exhibit Hall - B2, Poster

Division of Agrochemicals

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007