Volume 29 Issue 3
Jun.  2014
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LIU Yan-sheng, WANG Hong-yan, YANG Jian-wen. Dispersion of Nano-SiO2 Modified Slane Cupling Agent[J]. Development and Application of Materials, 2014, 29(3): 56-60. DOI: 10.19515/j.cnki.1003-1545.2014.03.012
Citation: LIU Yan-sheng, WANG Hong-yan, YANG Jian-wen. Dispersion of Nano-SiO2 Modified Slane Cupling Agent[J]. Development and Application of Materials, 2014, 29(3): 56-60. DOI: 10.19515/j.cnki.1003-1545.2014.03.012
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Dispersion of Nano-SiO2 Modified Slane Cupling Agent

  • 1. School of Chemical and Biological Engineering, Guilin University of Technology, Guilin 541006, China;

  • 2. Northwest Research Institute of Mining and Metallurgy, Baiyin 730900, China

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  • Received Date: March 06, 2014
  • Available Online: March 19, 2024
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    • Abstract
  • Nano-sized SiO2 was surface modified with silane coupling agent KH-570. The modified nano SiO2 was studied by means of infrared spectrometer (IR), thermogravimetric (TA), Zeta potential, SEM. The results showed that coupling agent KH-570 and SiO2 form a Si-O-Si bond with 5. 8% attached amount and 10. 35% of the solvent water; Zeta potential of modified nano SiO2 in ethanol medium reduced from -14. 9 mV to -41. 1 mV, the system stability can reach more than 60 h. Used as photocureable dental composite resin filler, the dispersion is remarkably improved, the vickers hardness, compression strength, elastic physical properties such as flexural strength increased more than 10%.
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