Fabricating superhydrophobic surfaces by molecular accumulation of polysiloxane on the wool textile finishing |
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Authors: | B T Zhang B L Liu X B Deng S S Cao X H Hou H L Chen |
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Institution: | (1) Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, People’s Republic of China;(2) The Graduate School of Chinese Academy of Sciences, Beijing, 100039, People’s Republic of China |
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Abstract: | In the present study, a novel and simple method of obtaining superhydrophobic surface through the migration of organic siloxane
segments in the acrylate side chains to the outmost layer and forming the nano-protuberance on the micro-roughness wool fabrics
was described. The chemical compositions and morphologies of the untreated/treated fabrics were characterized by the scanning
electron microscopy and X-ray photoelectric energy spectroscopy. Meanwhile, the surface hydrophobicity was evaluated by the
static contact angle measurement. The scanning electron microscopy photographs showed that the fiber surfaces of the treated
fabrics were obviously granulated, and a wax film covered on the fibers could be observed. X-ray photoelectron spectroscopy
analyses and static contact angle measurement further testified that the component of the wax was almost siloxane and that
the surfaces of the treated fabrics had superhydrophobic property. The above results indicated that this method could be extended
to prepare superhydrophobic surfaces by migrating the low-surface-energy matter and fabricating the nanoscale roughness on
the micro-roughness material surfaces. |
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Keywords: | Polysiloxane Wool Fiber Migration Superhydrophobic surface |
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