BS-12改性蒙脱土的制备及其稳定的Pickering乳液的研究

doi:10.3969/j.issn.1001-1803.2020.03.007

Abstract

Abstract:

The dodecyl dimethyl betaine modified montmorillonite （BS-12/MMT） was prepared using dodecyl dimethyl betaine （BS-12） as modifier. The BS-12/MMT was characterized by Fourier transform infrared spectroscopy （FT-IR）, X-ray diffraction （XRD） and the three-phase contact angle measuring instrument. An L₉（3 ⁴） orthogonal experiment was designed to optimize the content of each component and preparation process of the BS-12/MMT stabilized Pickering emulsion. The optimized results were verified by centrifugal stability and static stability experiments. The particle size distribution of the emulsions was measured by the Zeta Plus particle size analyzer. The results show that the BS-12/MMT content is 4%, the oil-water mass ratio is 1∶1, the AEO-3 content is 1%, and the emulsification time is 10 min, which is more conductive to maintaining the stability of the BS-12/MMT stabilized Pickering emulsion. The optimized emulsion particle size distribution is narrow, which is beneficial to the long-term stability of the emulsion.

Key words: montmorillonite, dodecyl dimethyl betaine, Pickering emulsion, stability

CLC Number:

TQ423

Ze-yu YANG,Wan-xu WANG,Guo-yong WANG,Xiu-mei TAI. Preparation of modified montmorillonite by BS-12 and application in Pickering emulsion[J].China Surfactant Detergent & Cosmetics, 2020, 50(3): 177-181.

Figures/Tables 7

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References 18

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水平	因素
水平	A BS-12/MMT含量/%	B 油水质量比	C AEO-3含量/%	D 乳化时间/min
1	0.5	2∶1	0	5
2	1	1∶1	0.5	10
3	4	1∶2	1	20

因素	A	B	C	D	乳液相体积分数/%
1	0.5	2∶1	0	5	37.50
2	0.5	1∶1	0.5	10	46.43
3	0.5	1∶2	1	20	34.38
4	1	2∶1	0.5	20	65.23
5	1	1∶1	1	5	72.73
6	1	1∶2	0	10	46.15
7	4	2∶1	1	10	100.00
8	4	1∶1	0	20	90.91
9	4	1∶2	0.5	5	60.86
k₁	39.437	67.577	58.187	57.030
k₂	61.370	70.023	57.507	64.193
k₃	83.923	47.130	69.037	63.507
R	44.486	22.893	11.530	7.163

样品编号	离心稳定性	静置稳定性	耐热稳定性	耐寒稳定性
1	无相分离现象	无相分离现象	无相分离现象	无相分离现象
2	无相分离现象	无相分离现象	无相分离现象	无相分离现象
3	无相分离现象	无相分离现象	无相分离现象	无相分离现象

Preparation of modified montmorillonite by BS-12 and application in Pickering emulsion

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