Аннотация:The work is devoted to studying the properties of polydimethylsiloxane rubber crosslinked withMQ copolymer and modified with organosilicon compounds of different architectures: asymmetric stereoregular organosilicon stars with flexible siloxane arms and organosilicon nanogel. The statistics of crystallization of water droplets on polydimethylsiloxane-rubber-based coatings has been investigated at temperatures of –15 and –20°С. It has been shown that the coatings are hydrophobic and exhibit anti-icing properties.At –15°С, the droplets on the surfaces of these coatings may remain in a metastable supercooled state for up to 30 hours. At –20°С, the time of droplet crystallization is reduced to 30 min. Under isothermal low-temperature conditions, the positive effect of the modifiers incorporated into polydimethylsiloxane rubber crosslinkedwith MQ copolymer manifests itself as a decreased rate of droplet crystallization on the coatings containing 1 wt % nanogel or organosilicon stars with flexible siloxane arms as compared with that on the initial polymer.
