公开(公告)号：KR1020040012012A

公开(公告)日：2004-02-11

申请号：KR1020020045360

申请日：2002-07-31

Applicant: 국방과학연구소

Inventor： 서문석 ,  신민재 ,  최교준 ,  한인식 ,  정순규 ,  최형진 ,  김지우 ,  이진현

IPC: C10M149/00

Abstract: PURPOSE: Provided is electrorheological (ER) fluids which have effective ER effect over a broad range of temperature, showing stable Bingham behavior per changes in temperature and electric field, by having semiconducting polyaniline particles dispersed in a non-conductive medium such as silicone oil. CONSTITUTION: The electrorheological fluids wherein 10-20 % by volume of polyaniline particles at pH 7.5-10.0 are dispersed in a non-conductive medium, are prepared by a method comprising: (1) carrying out polymerization of aniline in 1M aqueous hydrochloride solution at -10 to 5 deg.C to provide polyaniline particles; (2) milling the polyaniline obtained from the step (1), and selecting particles of 1-10 micrometer by sieving; (3) adjusting the pH of the resulted particles to 7.5-10.0 with aqueous sodium hydroxide solution; and (4) dispersing the obtained particles into a non-conductive solvent selected from a group consisting of silicone oil, transformer oil, transformer insulating solution, mineral oil, olive oil, and mixtures thereof.

Abstract translation: 目的：提供在宽温度范围内具有有效ER效应的电流变（ER）流体，通过将半导体聚苯胺颗粒分散在非导电介质如硅油中，显示出每温度和电场变化的宾汉行为的稳定性。 构成：其中10-20体积％的pH7.0-10.0的聚苯胺颗粒分散在非导电介质中的电粘滞性流体是通过以下方法制备的：（1）在1M盐酸水溶液中进行苯胺的聚合， -10至5℃以提供聚苯胺颗粒; （2）研磨由步骤（1）获得的聚苯胺，并通过筛分选择1-10微米的颗粒; （3）用氢氧化钠水溶液调节所得颗粒的pH至7.5-10.0; 和（4）将所得颗粒分散在选自由硅油，变压器油，变压器绝缘溶液，矿物油，橄榄油及其混合物组成的组中的非导电溶剂中。