Hydrophobic Modification and Characterization of Calcium Carbonate Nanopowders

摘要：

Calcium carbonate nanopowder is an important engineering material used for various painting and polymer-based composite additive and filler. The hydrophobic modification on surface of calcium carbonate nanopowder was performed by using three silane coupling agents: i.e. 3-Amlnopropyl triethoxysilane (APTES), 3-mercapto-propyl triethoxysilane (MPTES) and 3-ATRP trimethoxysilane (KII570). Tbe Fourier Transform Infrared Spectrometry (FT-IR) was used to confirm the surface chemical coupling variations. The contact angle meter was used to determine its hydrophobic property. After KH570 modification, the sample of nanopowder showed the best hydrophobic property with a contact angle of 107°. The findings are of significance to enhance nano-calcium carbonate dispersibility and compatibility in organic media.

关键词： surface modification hydrophobic propertui nano-calcium carbonate) silane coupling agent

作者: Li Jirui

作者单位: Hunan Chemical Vocational Technology College, Zhuzhou Hunan, 412004, China

会议类型: 国际会议

会议名称: 2010 International Conference on Digital Manufacturing and Automation(2010 数字制造与自动化国际会议 ICDMA 2010)

会议地点: 长沙

会议语种:英文

页码: 814-817

在线出版日期: 2010-12-18（万方平台首次上网日期，不代表论文的发表时间）