Quaternary Ammonium Compounds-Modified Halloysite and Its Antifungal Performance
This paper was aimed to prepare new nanocomposites with antifungal activities by modification of halloysite nanotubes using quaternary ammonium compounds (QACs). Two kinds of QACs (benzyl ammonium chloride and didecyl dimethyl ammonium chloride) were used to modify HNTs by the method of vacuum loading. Fourier Transform infrared spectroscopy and thermogravimetric analysis confirmed that BAC and DDAC have been loaded successfully, and the loading capacity was 9.64 and 11.73%, respectively. The surface characteristic results of zeta potential and water-contact angle analysis showed that modified HNTs had positively charged and hydrophobic surface. The antifungal performance was expressed by inhibition zone test. The result revealed that the HNTs after modified had good inhibition against mould, and the bacteriostasis of DDAC was better than that of BAC. HNTs modified with QACs exhibited great potential applications in the field of antifungal nano-materials and fillers for polymer composites.
KeywordsQuaternary ammonium compounds Halloysite Antifungal properties
We are grateful for the financial support of the Fundamental Research Fund for the International Center for Bamboo and Rattan (No. 1632017020) and the National Key Research and Development Program of China (No. 2017YFD0600803).
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