Recycling of waste glass as raw materials for the preparation of self-cleaning, light-weight and high-strength porous ceramics
Recycling of waste glass as raw materials for the preparation of self-cleaning, light-weight and high-strength porous ceramics
复制标题
回收废玻璃为原料制备自洁轻质高强多孔陶瓷
DOI：
10.1016/j.jclepro.2021.128395
复制
发表时间：
2021-07-23
影响因子：
11.1
通讯作者：
Deng, Xin
中科院分区：
文献类型：
--
作者：
Fu, Chong;Liang, Jianwei;Deng, Xin
近年来，随着经济的快速发展，废旧玻璃的高效利用越来越受到人们的关注。主要挑战是提高废旧玻璃回收利用的经济效益和社会效益，提高相关行业废旧玻璃回收利用的自我驱动力。在该论文中，研究人员提出了一种废玻璃回收新策略，以低成本废玻璃粉为原料，通过乳液模板自组装方法与表面疏水涂层处理技术相结合，制备具有自清洁性能的轻质高强多孔陶瓷材料。所制备的陶瓷的开孔率可控制在50-70%，并且陶瓷具有超高的抗压强度（即50-141 MPa）。其表面水接触角高达162.2度，对牛奶、咖啡、啤酒、酱油等染色液具有显着的防污性能、稳定性和超疏水性能。而且，在高温（500℃）和酸碱环境下水接触角保持不变。更重要的是，即使表面的疏水涂层被破坏，陶瓷材料的超疏水性和自清洁能力在重新改性后仍能恢复，重复使用性极佳。陶瓷材料具有价格低廉、工艺简单、环保、能源效率高等优点，显示出巨大的潜力和广阔的应用前景。同时，该方法为废旧玻璃的综合利用提供了一条非常有效的途径，具有显着的经济效益和社会效益。
With rapid economic development in recent years, the efficient utilization of waste glass has received increasing attention. The major challenge is to improve the economic and social benefits of waste glass recycling and to improve the self-driving force of waste glass recycling in related industries. In this paper, the researchers proposed a new recycling strategy for waste glass, using low-cost waste glass powder as raw material to prepare light-weight and high-strength porous ceramic materials with self-cleaning properties by combining the emulsion template self-assembly method with a surface hydrophobic coating treatment technology. The open porosity of the prepared ceramics can be controlled at 50-70% and the ceramics have ultra-high compressive strength (i.e., 50-141 MPa). The water contact angle on its surface is as high as 162.2 degrees, which affords remarkable anti-dirt properties, stability, and superhydrophobic performance for milk, coffee, beer, soy sauce, and other staining liquids. Moreover, the water contact angle remains unchanged at a high temperature (500 degrees C) and in an acid-base environment. More importantly, even if the hydrophobic coating on the surface is destroyed, the super hydrophobicity and self-cleaning ability of the ceramic materials can be restored after remodification and the reuse is excellent. Ceramic materials offer the advantages of low price, a simple process, environmental protection, and high energy efficiency, and they show great potential and broad prospects for application. At the same time, the proposed method provides a very effective way to comprehensively utilize waste glass and has remarkable economic and social benefits.