| 摘要 |
PURPOSE:To form uniform liquid drops of a low conductivity liquid in synchronization with a specified period by impressing an AC electrostatic field of this period to multiple liquid columns covering the outer side of the low-conductivity liquid with a high-conductivity liquid which is incompatible with this liquid. CONSTITUTION:The multiple liquid columns formed by covering the low- conductivity liquid 5 (e.g. high molecular material soln.) ejected from the inner nozzle 11 of a nozzle 1 with the high-conductivity liquid 7 (e.g. water) which is ejected from the outer nozzle 12 and is incompatible with the liquid 5 pass between parallel flat plate shaped electrodes 3. The AC electrostatic field applied between the nozzle 1 and the electrodes 3 by an AC high-voltage power source 2 of the specified period is impressed to the above mentioned multiple liquid columns during this time. Consequently, the uniform liquid drops having the low conductivity of about 5 to 1000mu diameter are formed in synchronization with this period. The particles effective for various purposes, such as chromatography, adsorbent, carrier and spacer, are produced by utilizing this method. |
