Preparation of Polysiloxane Emulsions

The amounts of 1 g of vinyl PDMS, 0.8 g of deionized water, and 0.2 g of triton X-100 (its chemical structure is shown in Figure S3) were added to the reactor. Two drops of poly(methylhydrosiloxane) were added as a cross-linking agent, and they were then placed into an ultrasonic cell pulverizer for ultrasonic treatment until a uniform emulsion was formed. At this time, the mass ratio of polysiloxane, water, and emulsifier in the emulsion was 5:4:1, and the sample was recorded as W4-SR. Then, two kinds of emulsions with different water contents were prepared, and the deionized water in the above step was changed from 0.8 g to 1.2 g and 1.6 g. At this time, the ratio of polysiloxane, water, and emulsifier was 5:6:1 and 5:8:1, respectively, and the samples were recorded as W6-SR and W8-SR, respectively. In addition, without adding water, only 1 g of vinyl PDMS, 0.2 g of triton X-100, and two drops of poly(methylhydrosiloxane) were evenly mixed as the control group, and the sample was recorded as W0-SR.