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Citation: CHEN Jian, HUANG Zheng-Ren, DONG Shao-Ming, JIANG Dong-Liang. Adsorption of Polyethylene Glycol on Silicon Carbide Measured by Thermal Gravimetric and Differential Thermal Analysis[J]. Acta Physico-Chimica Sinica, ;2007, 23(06): 926-928. doi: 10.3866/PKU.WHXB20070625 shu

Adsorption of Polyethylene Glycol on Silicon Carbide Measured by Thermal Gravimetric and Differential Thermal Analysis

1.

Structural Ceramics Engineering Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China

Corresponding author: JIANG Dong-Liang,
Received Date: 30 October 2006
Available Online: 28 April 2007

The adsorption of polyethylene glycol (PEG) on SiC surface was measured by thermal gravimetric (TG) and differential thermal analysis (DTA). The result showed that PEG completely decomposed at 411.5 ℃ in Ar atmosphere. The adsorption amount decreased with the increase of pH and most free dispersant remained in liquid phase at higher pH. The adsorption amount was calculated by the formula (1). This method is adapted to measure the adsorption of organic polymer on oxide or non-oxide which can’t be analyzed by ultraviolet-visible spectrometry.
- Thermal gravimetric and differential thermal analysis; Silicon carbide; Polyethylene glycol; Adsorption
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