제산제 알루미나수화물의 콜로이드성과 제산능

• 영문명: Colloidal Properties and Acid Consuming Capacity of Hydrous Aluminum Oxide Suspension
• 발행기관: 대한약학회
• 저자명: 이계주(Gye Ju Rhee) 이기명(Ki Myung Lee)
• 간행물 정보: 『약학회지』제35권 제4호 (1991년), 277~282쪽, 전체 6쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 1991.08.30

영문 초록

Rheological, colloidal and micromeritical properties were followed to investigate aging mechanisms of hydrous aluminum oxide suspension using Zeta-meter systems, BET adsorption apparatus, Master sizer and electronmicroscope. The results indicate that hydrous aluminum oxide suspension revealed plastic flow with thixotropy. The viscosity, thixotropy and yield value were increased with increasing concentration. During aging process, the viscosity and thixotropic index were increased by an addition of glycerin, however, sorbitol stabilized aging process of the suspension being accompanied with growth of particle size and reduction in specific surface area, pore area and pore volume, and consistency. Diminution of adsorptive power of the particles was also protected by addition of sorbitol to hydrous aluminum oxide suspension. From these results, one of aging mechanism of hydrous aluminum oxide suspension assumed growth and/or crystallization of colloidal particles in aqueous suspension.

키워드

BET adsorption plastic flow viscosity thixotropic index yield value pore area and volume.