凯茵化工讯 香港大学14日宣布，该校研究人员研发出崭新的防水及防油物料，能应用于衣物、厨具和军事等方面。在技术上，这一物料使得不洗衣服成为可能。

　　这项研究由港大工程学院机械工程系教授王立秋带领。研究人员制造出“互连疏液结构”的防水防油物料，只要将它覆盖于纺织品、金属、玻璃等表面上，便能达到防油防水的效果。

　　王立秋表示，目前市面上大部分相关产品只能防水，较少能做到防油。此外，这些产品一般都使用了化学方法达到防水效果，成本较高并会造成环境污染，而港大研发的这一新物料以纯物理方法即可防水防油。

　　参与这项研究的港大机械工程系博士朱平安表示，理想的高性能防水防油物料要满足良好防水防油性、耐久性、可大面积制备、成本低廉4项要求。防水能力和强韧度难以兼容是研究团队遇到的一项挑战。新物料的设计模仿了节肢动物跳虫的表皮构造，以增加物料的强韧度和防水纤维素能力，有效地解决了防水能力和强韧度难以兼容的矛盾。

　　此外，研究人员在研发物料时以“液滴微流控”方法造出“多孔疏液表面”，能制造出大面积的物料，并精确控制物料的表面结构。据介绍，这一制造方法成本较低，每平方米只需0.7港元至1.3港元。

　　有关研究文章已于《自然通讯》发表。目前，港大已经就这项研发申请了 ，预计未来2年至3年能应用在日常用品上。

Hong Kong developed waterproof and oil-proof materials do not wash clothes possible

Kailin Chemical News The University of Hong Kong announced on the 14th that its researchers have developed new water and oil-resistant materials that can be used in clothing, kitchenware and military applications. Technically, this material makes it possible to wash clothes.

The study was led by Professor Wang Liqiu, a professor of mechanical engineering at Hong Kong University School of Engineering. Researchers have created "waterproof and oil-repellent materials that are" interconnected to lyophobic structures, "as long as they cover the surface of textiles, metals, glass, etc., to achieve oil and water repellency.

Wang Liqiu said that at present most of the related products on the market can only be waterproof, less able to prevent oil. In addition, these products generally use chemical methods to achieve water-repellent effects, resulting in high costs and environmental pollution. This new material developed by the University of Hong Kong can be water-repellent and oil-repellent with purely physical methods.

Zhu Ping'an, a Ph.D. in mechanical engineering from Hong Kong University who participated in the study, said that the ideal high-performance waterproof and oil-repellent materials should meet the requirements of good water and oil repellency, durability, large area preparation and low cost. The incompatibility of waterproofing and toughness is a challenge for the research team. The design of the new material mimics the epidermal structure of the arthropod hopper in order to increase the strength and waterproofing ability of the material and effectively solve the contradiction between the incompatible waterproof capability and the toughness.

In addition, researchers in the development of materials to "droplet microfluidic" method to create "porous lyophobic surface", can create a large area of ​​material, and precise control of the surface of the material structure. According to reports, the lower cost of this manufacturing method, only 0.7 Hong Kong dollars per square meter to 1.3 Hong Kong dollars.

Related research articles have been published in Nature Newsletter. At present, HKU has applied for a patent on this research and development and it is estimated that it will be applied to daily necessities in the next two to three years.