철강용 알칼리세정제의 제조에 관한 연구

A Study on the Preparation of Alkaline Cleaning Agents for Steel

Alkaline cleaning agent(ACA) was prepared by blending of POE(4)octadecylamine(S-204), Na₂CO₃, sodium orthosilicate(Na-OSi), Tetronix T-701(T-701), and MJU-l00A. The physical properties of ACA tested with steel specimen showed the following results. The cleaning powers of ACA-6(S-204 8Og/Na₂CO₃, 160g/Na-OSi, 8Og/T-701, 60g/MJU-l00A, 20g mixture) for press-rust preventing oil was 98% and 99% degreasing at 2wt%, 70℃ and 90℃, respectively : for quenching oil, the cleaning power of ACA-6 was 95% degreasing at 2wt% and 70℃. From these results, it was ascertained that ACA-6 exhibited a good cleaning power. Foam heights measured immediately after foaming by Ross & Miles method and Ross & Clark method at 3wt%, 60℃ were 17mm and 40mm, respectively. As the result, ACA-6 was proved a good low foaming cleaning agent.