농축세정제의 액정 상거동과 하이드로트로프 작용에 대한 연구

지경엽; Gyeong-Yup Chi

Applied Chemistry for Engineering, Vol.27, No.5, 516-520, October, 2016

DOI10.14478/ace.2016.1075 Export Citation

농축세정제의 액정 상거동과 하이드로트로프 작용에 대한 연구

Study of Hydrotrope Action and Liquid Crystal Behavior of Concentrated Liquid Detergents

지경엽

대구한의대학교 바이오산업융합학부

Gyeong-Yup Chi

Division of Bio-technology and Convergence, Daegu Hanny University, 285-10, Eobongji-gil, Gyeongsan-si, Gyeongsangbuk-do 38578, Korea

초록

농축세정제는 일반세정제의 2배~3배 농도의 계면활성제를 사용하여 제조하며, 계면활성제가 35~45% (w/w) 정도가 된다. 일반적으로 단일 계면활성제는 농도의존적으로 30~60% (w/w) 영역에서 액정상을 형성한다고 알려져 있다. 혼합 계면활성제 시스템인 약 40% (w/w) 전후 농도의 농축세정제는 외관이 불투명하거나 겔상의 액정상을 형성한다. 소비자가 선호하고 사용하기 적합한 제품화를 위해 투명상과 영하의 온도에서도 clear한 상을 얻기 위해서 하이드로트로프(hydrotrope)를 적용하였으며, 효과가 우수한 하이드로트로프는 1,6-hexanediol, adipic acid와 dipropylene glycol와 같은 분자 양말단에 친수기를 가진 타입이었다. 점도가 조절되고 저온에서 상안정성이 우수한 농축세정제를 제조하기 위해서는 우수한 하이드로트로프와 함께 LAS와 SAS 같은 친수기가 계면활성제 소수기의 중간에 위치한 secondary type의 계면활성제를 적용하는 것이었다. 양말단에 친수기가 있는 하이드로트로프와 secondary type 계면활성제를 혼합 적용함으로써 약 40% (w/w) 농도의 농축세정제의 액정형성을 방지할 수 있다. 본 기술의 적용으로 저온안정성이 우수하며 점도가 적당히 조절된 농축세정제의 제조가 가능하다.

Concentrated liquid detergents have 2~3 times higher surfactant contents [35~45% (w/w)] compared to those of normal type detergents. In general, a single surfactant forms a lyotropic liquid crystal (LC) phase when the concentration is in the region of 30~60% (w/w). Whereas the concentrated liquid detergent at about 40% (w/w) concentration in a mixed surfactant system shows an opaque appearance of gel or LC. In order to meet consumer needs and preference for product appearance, we applied hydrotropes and various surfactants systems in concentrated liquid detergents to obtain an opaque gel-phase and also a clear transparent phase at even below zero ℃ temperature. The more effective hydrotropes for making concentrated liquid detergents are 1,6-hexanediol, adipic acid and dipropylene glycol (DPG) which have two hydrophilic groups in both terminated positions. In order to prepare an excellent concentrated liquid detergent, good hydrotropes alongside secondary type surfactants like LAS and SAS were used. The formation of LC phase of concentrated liquid detergents at about 40% (w/w) concentration could be prevented by the use of both hydrotropes and secondary type surfactants. The result indicate that concentrated detergents having excellent low temperature stability and controlled viscosity can be prepared.

Keywords:concentrated detergent;liquid crystal;phase behavior;hydrotrope;cloud point

[References]

Lai KY, Liquid Detergents, 21-25, Marcel Dekker, Inc., NY, USA (1996).
Falbe J, Surfactants in Consumer Products: Theory, Technology and Application, 14-18, Verlag GmbH & Co, NY, USA (1986).
Park SI, Surfactant Science and Application, 33, AK Ind., Korea (1996).
Kao Corp., Surfactants: A Comprehensive Guide, 1st ed. 3-36, Kao Corp., Tokyo, Japan (1983).
Attwood D, Florence AT, Surfactant Systems Their Chemistry, Pharmacy and Biology, 40-49, Chapman and Hall, NY, USA (1983).
Falbe J, Surfactants in Consumer Products: Theory, Technology and Application, 171, Verlag GmbH & Co, NY, USA (1986).
Lai KY, Liquid Detergents, 43, Marcel Dekker, Inc., NY, USA (1996).
Clint JH, Surfactant Aggregation, 161-184, Chapman and Hall, NY, USA (1992).
Chi GY, Studies of Rheology and Phase Diagram of Mixed Surfactants System, 49, PhD Dissertation, Korea University, Seoul, Korea (2008).
Falbe J, Surfactants in Consumer Products: Theory, Technology and Application, 68, Verlag GmbH & Co, NY, USA (1986).
Julie, Diet, Liquid detergent composition, Korean Patent, 10-0221444 (1999).
Jung JI, Kang YS, Roh SH, Dishwashing concentrated liquid detergent composition, Korean Patent, 1998-043564 (1998).
Jung KI, Kang YS, Roh SH, Liquid detergent composition, Korean Patent, 10-0203732 (1999).
Hyun KS, Kang CS, Kim JH, Concentrated dishwashing liquid detergent composition, Korean Patent, 1999-0066570 (1999).
Kim CW, Lee MI, Ju KS, Concentrated liquid dishwashing detergent composition and their preparing method, Korean Patent, 2000-0018727 (2000).
Kim WJ, Chi GY, Kang YJ, Yeom JW, Liquid detergent composition, Korean Patent, 10-0331077 (2002).
Takesi T, Tsutosi T, Liquid detergent, Korean Patent, 10-2014-0007407 (2014).
Hirotsuku O, Liquid detergent, Korean Patent, 10-2015-0063348 (2015).
Tomotaka I, Naoya T, Liquid detergent, Korean Patent, 10-2015-0143445 (2015).
Lai KY, Liquid Detergents, 21-25, Marcel Dekker, Inc., NY, USA (1996).
Kim H, Application and behavior of surfactant, 132, the 4th Fine-Chem. Symposium, KSIEC, Korea (1994).
Lai KY, Liquid Detergents, 43-53, Marcel Dekker, Inc., NY, USA (1996).
Richards C, Tiddy JT, Casey S, Colloids Surf. A: Physicochem. Eng. Asp., 288, 103 (2006)
Chi GY, Studies of Rheology and Phase Diagram of Mixed Surfactants System, 54, PhD Dissertation, Korea University, Seoul, Korea (2008).

[Referenced By]

[1] Lai KY, Liquid Detergents, 21-25, Marcel Dekker, Inc., NY, USA (1996).

[2] Falbe J, Surfactants in Consumer Products: Theory, Technology and Application, 14-18, Verlag GmbH & Co, NY, USA (1986).

[3] Park SI, Surfactant Science and Application, 33, AK Ind., Korea (1996).

[4] Kao Corp., Surfactants: A Comprehensive Guide, 1st ed. 3-36, Kao Corp., Tokyo, Japan (1983).

[5] Attwood D, Florence AT, Surfactant Systems Their Chemistry, Pharmacy and Biology, 40-49, Chapman and Hall, NY, USA (1983).

[6] Falbe J, Surfactants in Consumer Products: Theory, Technology and Application, 171, Verlag GmbH & Co, NY, USA (1986).

[7] Lai KY, Liquid Detergents, 43, Marcel Dekker, Inc., NY, USA (1996).

[8] Clint JH, Surfactant Aggregation, 161-184, Chapman and Hall, NY, USA (1992).

[9] Chi GY, Studies of Rheology and Phase Diagram of Mixed Surfactants System, 49, PhD Dissertation, Korea University, Seoul, Korea (2008).

[10] Falbe J, Surfactants in Consumer Products: Theory, Technology and Application, 68, Verlag GmbH & Co, NY, USA (1986).

[11] Julie, Diet, Liquid detergent composition, Korean Patent, 10-0221444 (1999).

[12] Jung JI, Kang YS, Roh SH, Dishwashing concentrated liquid detergent composition, Korean Patent, 1998-043564 (1998).

[13] Jung KI, Kang YS, Roh SH, Liquid detergent composition, Korean Patent, 10-0203732 (1999).

[14] Hyun KS, Kang CS, Kim JH, Concentrated dishwashing liquid detergent composition, Korean Patent, 1999-0066570 (1999).

[15] Kim CW, Lee MI, Ju KS, Concentrated liquid dishwashing detergent composition and their preparing method, Korean Patent, 2000-0018727 (2000).

[16] Kim WJ, Chi GY, Kang YJ, Yeom JW, Liquid detergent composition, Korean Patent, 10-0331077 (2002).

[17] Takesi T, Tsutosi T, Liquid detergent, Korean Patent, 10-2014-0007407 (2014).

[18] Hirotsuku O, Liquid detergent, Korean Patent, 10-2015-0063348 (2015).

[19] Tomotaka I, Naoya T, Liquid detergent, Korean Patent, 10-2015-0143445 (2015).

[20] Lai KY, Liquid Detergents, 21-25, Marcel Dekker, Inc., NY, USA (1996).

[21] Kim H, Application and behavior of surfactant, 132, the 4th Fine-Chem. Symposium, KSIEC, Korea (1994).

[22] Lai KY, Liquid Detergents, 43-53, Marcel Dekker, Inc., NY, USA (1996).

[23] Richards C, Tiddy JT, Casey S, Colloids Surf. A: Physicochem. Eng. Asp., 288, 103 (2006)

[24] Chi GY, Studies of Rheology and Phase Diagram of Mixed Surfactants System, 54, PhD Dissertation, Korea University, Seoul, Korea (2008).