양이온 계면활성제 흡착에 의한 인모의 표면 특성의 변화 = Effect of Cationic Surfactant on the Surface Properties of Human Hair

다국어 초록 (Multilingual Abstract)

In General, hair conditioner contains cationic surfactant such as quaternary ammonium salts to modify the surface properties of human hair. These compounds are deposited on the surface and bring about a change in the surface profile. Two quaternary ammonium salts differing in the length of the alkyl groups -lauryl trimethyl ammonium chloride (LTAC), stearyl trimethyl ammonium chloride (STAC)- were selected in this study. The exhausted bath were assayed for the left over cationic using the Orange Ⅱ dye technique. The performance properties of the treated hair including the static charge, friction coefficient, and combing force were also measured to evaluate the effect of cationic surfactant.
The results of adsorption study indicated that the amount of equilibrium uptake was significantly affected by the length of the alkyl group on the surfactant.
Changes in accessibility and zeta potential of human hair by bleaching had a significant influence on both the adsorption rate and the amount of equilibrium uptake. Evaluation of the performance properties revealed that the initial surfactant deposit brings about a significant improvement in the surface properties of human hair.

목차 (Table of Contents)

• Ⅰ. 서 론
• Ⅱ. 실 험
• Ⅲ. 결과 및 고찰
• Ⅳ. 결 론
• 참고문헌