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Researchers from Changzhou University Describe Findings in Coatings Technology

February 18, 2014

By a News Reporter-Staff News Editor at Journal of Technology -- Current study results on Coatings Technology have been published. According to news reporting originating from Changzhou, People's Republic of China, by VerticalNews correspondents, research stated, "Antireflective (AR) films were prepared by the sol-gel method and dip-coating process by using tetraethylorthosilicate (TEOS) as silica precursor. Silica nanoparticle (SiO2-NP) sol was first synthesized via classical Stober method, and then SiO2-NPs in sol were chained in series by linear silicate polymers (SiO2-LPs) to improve the film abrasion-resistant property."

Our news editors obtained a quote from the research from Changzhou University, "To further increase the transmittance of the SiO2-LP/NP composite film, the template agent CTAB was introduced into the SiO2-LP/NP composite sol. The experimental results revealed that the abrasion-resistant property had been enhanced with the increase of SiO2-LPs addition and the pencil hardness of the composite film had reached 6H when the mole ratio of SiO2-LPs to SiO2-NPs was 0.7:1. Meanwhile, the transmittance was optimized when n(CTAB):n(LPs) was equal to 0.15:1 in the composite sol, and at this mole ratio the average transmittance of the glass substrate coated with AR film was about 98.5% in the wavelength range of 400-800 nm, while that of the bare glass substrate was just 91.5%. Trimethylchlorosilane (TMCS) treatment was finally used to provide AR films with hydrophobicity."

According to the news editors, the research concluded: "The water contact angle was significantly increased from 6 degrees to 120 degrees after TMCS treatment, affording the AR films excellent environmental resistance."

For more information on this research see: Preparation of the multifunctional antireflective films from a templating composite silica sol with entwining structures. Surface & Coatings Technology, 2013;236():518-524. Surface & Coatings Technology can be contacted at: Elsevier Science Sa, PO Box 564, 1001 Lausanne, Switzerland. (Elsevier -; Surface & Coatings Technology -

The news editors report that additional information may be obtained by contacting X.S. Meng, Changzhou Univ, Sch Petrochem Engn, Changzhou 213164, Jiangsu, People's Republic of China. Additional authors for this research include Y. Wang, H.N. Wang, J. Zhong and R.Y. Chen.

Keywords for this news article include: Asia, Changzhou, Treatment, Coatings Technology, People's Republic of China

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Source: Journal of Technology

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