인산 알루미늄의 합성조건과 유동학적 특성

• 영문명: Synthesis Conditions and Rheological Characteristics of Aluminum Phosphate
• 발행기관: 대한약학회
• 저자명: 신화우(Wha Woo Shin) 안세민(Sea Min An) 정동훈(Dong Hoon Chung) 강태욱(Tae Wook Kang) 이광표(Kwang Pyo Lee)
• 간행물 정보: 『약학회지』제35권 제4호 (1991년), 319~325쪽, 전체 7쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 1991.08.30

영문 초록

Aluminum phosphate gel was synthesized by reacting aluminum sulfate as a soluble aluminum salt to tribasic sodium phosphate in this study. The optimal synthesis conditions based on the yield of product were investigated by applying Box-Wilson experimental design. It was found that optimal synthesis conditions were as follows: Reaction temperature; 61-71oC, concentration of two reactants; 12.27-13.83%, concentration ratio of two reactants; [Al2(SO4)3]/[Na3PO4] = 0.5, reaction time; 10.9-12.1 minutes, drying temperature of product; 60-72oC. Aluminum phosphate gel prepared by the optimal synthesis conditions was suspended with four types of natural and synthetic gums at the concentration of 0.375-1.5wv%. Their rheological properties of aluminum phosphate gels were examined with Haake-Rotovisco RV 20 rotational viscometer. It showed that the higher concentration of suspending agents and lower temperature, the higher viscosity. Aluminum phosphate gel suspended by pectin and agar showed plastic flow with rheopexy, and their gels suspended by sodium alginate and sod. CMC showed plastic flow with thixotropy.

키워드

Synthesis of aluminum phosphate Box-Wilson experimental design plastic flow with thixotropy plastic flow with rheopexy hysteresis loop area.