Acidic degreasing agent(AADA) was prepared by blending sorbitol, Newpol PE-68, Na-dioctyl sulfosuccinate, Tetronix T-70l, MJU-100A, n-octanoic acid, and phosphoric acid, The physical properties of AADA tested with aluminum specimen showed the following results ; when 3wt% AADA-5 was performed at 70℃, the degreasing rate was 95% which is comparitively good, and the percentage of etching was 0.277% which was found to be less than that of commercialized product. when 20wt% of AADA-5 was added at 65℃, the percentage of derusting was 91% and the good defoaming effect proved by following low foaming power tests respectively : Ross and Miles, and Ross and Clark methods.

• 정동진 | Chung, Dong-Jin
• 박형진 | Park, Hyong-Jin
• 김성래 | Kim, Sung-Rae
• 정충호 | Jung, Choong-Ho
• 우종표 | Wu, Jong-Pyo
• 함현식 | Hahm, Hyun-Sik
• 박홍수 | Park, Hong-Soo