脂肪醇聚醚类乳化剂对低粘乳液制备的影响

doi:10.3969/j.issn.1001-1803.2021.10.005

Abstract

Abstract:

The effects of emulsifiers on the preparation of low-viscosity emulsions were studied. The long-term thermal stability of low-viscosity emulsions was monitored by investigating their rheological properties. The results show that cetearyl alcohol polyether emulsifier is suitable for preparing low-viscosity emulsions. For oil-in-water emulsifiers, given the same lipophilic group, the shorter the EO chain length, the better the yield stress and the centrifugal stability of the resulting emulsion. There is an optimal amount for cetearyl alcohol polyether emulsifier when it is solely used as the emulsifier. Its emulsifying property is good. The yield stress of the low-viscosity emulsion is significantly higher when cetearyl alcohol polyether emulsifier is combined with a low-HLB nonionic emulsifier, and the resulting particle size is smaller. It is highly likely due to the stronger interfacial film strength in the presence of two emulsifiers, because the emulsifier is the only variable in the studied emulsions.

Key words: fatty alcohol polyether emulsifier, EO chain length, yield stress, rheology, stability

CLC Number:

TQ423

Li Xilian,Hu Fan,Chen Minghua. Effects of fatty alcohol polyether emulsifiers on the preparation of low-viscosity emulsions[J].China Surfactant Detergent & Cosmetics, 2021, 51(10): 956-962.

Figures/Tables 11

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References 14

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组别	原料	w/%
组别	原料	1#	2#	3#	4#
A	去离子水	至100.0	至100.0	至100.0	至100.0
	卡波姆	0.1	0.1	0.1	0.1
	甘油	8.0	8.0	8.0	8.0
	羟苯甲酯	0.2	0.2	0.2	0.2
B	季戊四醇四（乙基己酸）酯	4.0	4.0	4.0	4.0
	辛酸/癸酸甘油三酯	4.0	4.0	4.0	4.0
	聚二甲基硅氧烷	2.0	2.0	2.0	2.0
	Emulgin B1/B2/B3	按实验比例添加	—	—	—
	Montanov L	—	0.5~1.5	—	—
	Tego care 450	—	—	0.5~1.5	—
	Tego care 165	—	—	—	0.5~1.5
	硬脂醇/鲸蜡醇/肉豆蔻醇/花生醇	0.5	0.5	0.5	0.5
C	三乙醇胺	0.1	0.1	0.1	0.1
C	苯氧乙醇	适量	适量	适量	适量

乳化剂类型	平均粒径/μm	中径/μm	90%粒径/μm
1.5% Emulgin B1+0.5% GMS	6.969 69	6.101 39	<12.71
1.5% Emulgin B1	8.028 80	7.324 74	<14.14

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Effects of fatty alcohol polyether emulsifiers on the preparation of low-viscosity emulsions

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