公开(公告)号：KR1020040093911A

公开(公告)日：2004-11-09

申请号：KR1020030027780

申请日：2003-04-30

Applicant: 한국과학기술연구원

Inventor： 배동식 ,  한경섭 ,  김상우 ,  방재희 ,  김은정 ,  김경채

IPC: B82B3/00 ,  B82Y40/00

CPC classification number: B22F9/24 ,  B22F1/0044 ,  B82Y40/00

Abstract: PURPOSE: Provided is a method for preparing silver nano-sized powder having controlled particle size distribution of up to 100 nm by using micro-emulsion process. CONSTITUTION: The method for preparing Ag nano-sized powders comprises the steps of: mixing an aqueous solution of silver with a surfactant in an organic solvent to obtain a reverse micelle micro-emulsion; reducing silver by adding a reducing agent to the emulsion and agglutinating to obtain silver powder; and washing the powder to isolate from the organic solvent. Particularly, the organic solvent is at least one selected from cyclohexane and isooctane, and the surfactant is at least one selected from polyoxyethylene nonylphenyl ether and sodium bis(2-ethylhexyl) sulfonate. Further, the reducing agent may be 0.1-2 wt% of N2H4.xH2O.

Abstract translation: 目的：提供一种通过使用微乳液法制备具有高达100nm的可控粒度分布的银纳米尺寸粉末的方法。 构成：制备Ag纳米尺寸粉末的方法包括以下步骤：将银水溶液与表面活性剂在有机溶剂中混合，得到反胶束微乳液; 通过向乳液中加入还原剂并凝集得到银粉来还原银; 并洗涤粉末与有机溶剂分离。 特别地，有机溶剂是选自环己烷和异辛烷中的至少一种，表面活性剂是选自聚氧乙烯壬基苯基醚和双（2-乙基己基）磺酸钠中的至少一种。 此外，还原剂可以为0.1〜2重量％的N 2 H 4·xH 2 O.

公开(公告)号：KR100575213B1

公开(公告)日：2006-05-02

申请号：KR1020030027780

申请日：2003-04-30

Applicant: 한국과학기술연구원

Inventor： 배동식 ,  한경섭 ,  김상우 ,  방재희 ,  김은정 ,  김경채

IPC: B82B3/00 ,  B82Y40/00

Abstract: 본 발명은 나노 크기의 Ag 분말을 역 마이셀을 이용한 마이크로 에멜젼 공정으로 제조하는 것으로서, Ag 분말의 크기는 5에서 200nm 조절이 가능하고, 입도 분포 제어가 가능하다.
나노 분말, 역마이셀, 에멀젼