| 학회 |
한국고분자학회 |
| 학술대회 |
2007년 봄 (04/12 ~ 04/13, 제주 ICC) |
| 권호 |
32권 1호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Swelling of Bentonite in Single-Species Salt Solutions in different Temperatures and under Different pH Values |
| 초록 |
In this experiment, swelling behavior of sodium bentonite in NaCl, KCl, CaCl2 and MgCl2 solutions of 0.1mol/L and distilled water were used under room temperature (approximately 16°C), 30°C, 40°C, 50°C and 60°C with maintaining pH values around 7. Swelling volume of was measured by direct reading the cylinder scale (in ml) in every 24 hours. In addition, the effect of pH on bentonite swelling was investigated in HCl (1＜pH＜6) and NaOH (8＜pH＜12) solutions and swell volume was recorded till to a constant level. Swelling volume is depending on the physical form of bentonite and cation of permeant liquid. Higher temperatures gave the higher swelling volumes and quickly came to constant levels of swelling in all the experimented cases. The ase of 3＞pH and pH ＞11 give greater influence on increasing and decreasing of swelling volume in powder and granular bentonite respectively. |
| 저자 |
전한용1, Ge Xin2, Herath C. N.3
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| 소속 |
1인하대, 2Department of Textile Engineering, 3Inha Univ. Graduate School |
| 키워드 |
GCL; bentonite; expansion and sealant property; swelling volumes; powder and granular bentonites
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| E-Mail |
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