New Technology of Preparation of TiO₂/Tourmaline by Dry Coated Method and its Application in Coating

Abstract:

The high whiteness tourmaline composite powder was prepared with powder coating method in which TiO₂ as the coating agent and the stearic acid as the coupling agent. The powder coating method system theoretical research was improved to aim at resolving the tourmaline’s limited applications in environmental health field due to the darker color. Theory and test results show that when the tourmaline and the coating agent mass ratio of about 2:1, the best results by scanning electron microscopy indicating that the tourmaline composite powder particle size prepared of this ratio is uniform with the composite powder whiteness of 74.5% which is 23.5% higher than building whiteness of the direct coating agent for mechanical mixing with tourmaline powder. After the composite powder was used to prepare the coating, the results show that the whiteness is 87.1% after formatting coating and negative ions incremental release over the 800 ions/cm3 when the content of tourmaline is 11%.

• Periodical: Advanced Materials Research (Volumes 557-559)
• Pages: 1727-1737
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.557-559.1727
• Online since: July 2012
• Authors: Ping Wang, Wen Qian Xu, Ting Li Wang, Zhi Feng Li, Chun Xiang Wang, Wei Guo, Su Ying Wu
• Keywords: Anion, Coating, Powder Coating Method, Tourmaline

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