Preparation and Performance Investigation of Superhydrophobic PMMA/Simethicone Complex Membranes

doi:10.19491/j.issn.1001-9278.2020.04.008

Abstract

Abstract:

In this study, a type of superhydrophobic poly(methyl methacrylate) (PMMA)/simethicone complex membranes was fabricated by a one?step electrospinning technology, and the effects of PMMA and simethicone concentrations on the fiber morphology and membrane wettability were investigated systemically. The SEM observation indicated that there were beaded fibers appearing with an increase of oil content, and the bead volume also increased. The complex membranes exhibited a superhydrophobic nature with a water contact angle 150.6° at the PMMA/simethicone mass ratio of 6/8. This phenomenon could be explained by the fact that the increased bead could capture more air and therefore reduced the contact area between the water phase and membrane interface. This fabrication method can control the hydrophobic property easily by adjusting the proportion of oil phase and benefits the preparation of special wettability surface and the application in oil?water separation accordingly.

Key words: nanofibers, superhydrophobic, oil?water separation, poly (methyl methacrylate)

CLC Number:

TQ 323

Zhi LIU, Bo WU, Guangkai HOU, Fangtao RUAN. Preparation and Performance Investigation of Superhydrophobic PMMA/Simethicone Complex Membranes[J]. China Plastics, 2020, 34(4): 42-48.

Figures/Tables 10

样品编号	S/PMMA质量比	纺丝液浓度/%
1^#	0∶6	12
2^#	0∶6	14
3^#	0∶6	16
4^#	1∶6	12
5^#	1∶6	14
6^#	1∶6	16
7^#	3∶6	14
8^#	6∶6	14
9^#	8∶6	14

Tab.1. The preparation parameter of S/PMMA membrane

Fig.1. The schematic diagram of the preparation process of S/PMMA membrane

Fig.4. The fiber morphology of S/PMMA membrane with the addition of simethicone at different weight ratio of S/PMMA

样品编号	S/PMMA质量比	串珠平均直径/μm
5^#	1∶6	0
7^#	3∶6	25.3±4.4
8^#	6∶6	30.9±4.7
9^#	8∶6	34.2±4.6

Tab.2. The bead diameter of S/PMMA membrane with the addition of simethicone at different weight ratio of S/PMMA

Fig. 5. FTIR spectrum of PMMA membrane with and without simethicone

Fig. 6. XRD spectrum of PMMA membrane with and without simethicone

Fig.7. The wettability of PMMA membrane

Fig.8. The membrane mechanical property with and without silicone oil (14 % concentration)

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