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Title: Lotus-leaf structured self-cleaning plastic film, lotus-leaf structured self-cleaning surface microstructures, and preparation methods thereof
Other Titles: 荷叶结构的自清洁塑料膜、表面微型结构及其制备方法
Authors: To, S 
Lee, WB 
Wang, WK 
Cheung, KC 
Issue Date: 29-Jun-2016
Source: 中国专利 ZL 201110450694.5 How to cite?
Abstract: The invention discloses preparation methods for a lotus-leaf structured self-cleaning plastic film and lotus-leaf structured self-cleaning surface microstructures. The preparation methods comprise the steps of 1) preparing a mold core by using a single-point diamond processing technology; and 2) preparing a micro-surface type with submicron scale surface shape accuracy and nanoscale surface roughness by injecting on a plastic with the mold core, so as to make grooves with surfaces arranged neatly or staggeredly, so that contact angles between water drops and contact surfaces are over 90 degrees. The invention also discloses a preparation method for the lotus-leaf structured self-cleaning surface microstructures. The plastic film with lotus-leaf structured surface microstructures can be prepared by using ultraprecise single-point diamond processing technology. The plastic film has a self-cleaning function and wide applications. Besides, with the above mold core, common plastics can be made into plastic products with the self-cleaning function rapidly, thereby greatly increasing production efficiency.
Rights: Assignee: The Hong Kong Polytechnic University
Appears in Collections:Patent

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