School of Engineering, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, and Key Laboratory of Wood Science and Technology of Zhejiang Province, Zhejiang A&F University, Hangzhou 311300, China.
School of Engineering, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, and Key Laboratory of Wood Science and Technology of Zhejiang Province, Zhejiang A&F University, Hangzhou 311300, China.
J Colloid Interface Sci. 2021 Jul;593:41-50. doi: 10.1016/j.jcis.2021.03.022. Epub 2021 Mar 10.
The efficient use of abundant renewable bamboo as high value-added decoration and building materials is of great significance for mitigating carbon dioxide emissions and maintaining sustainable development. The key challenge is to explore efficient and gentle methods to improve the undesirable surface properties of bamboo. Herein, a colorful and superhydrophobic bamboo is gently fabricated by a facile in-situ growth and conversion method based on metal-organic framework (for constructing micro-nano composite structures) and subsequent coating of sodium laurate (for reducing surface energy) at room temperature. The resulting sodium laurate-coated cobalt-nickel double hydroxide layer (CoNi-DH-La) is demonstrated as an efficient superhydrophobic layer to exhibit excellent chemical and mechanical stability. Impressively, the as-obtained CoNi-DH-La-coated bamboo sheet (BS-CoNi-DH-La) shows positive performances in terms of mildew resistance, flame retardancy, and self-cleaning. More importantly, this gentle method can endow bamboo with multiple unfading colors by changing the type of inorganic salts during the preparation process and display good potential for large-scale production.
高效利用丰富的可再生竹子作为高附加值的装饰和建筑材料，对于缓解二氧化碳排放和实现可持续发展具有重要意义。关键挑战是探索高效、温和的方法来改善竹子不理想的表面性能。本文通过一种简便的原位生长和转化方法，在室温下利用金属有机框架（用于构建微纳复合结构）和随后的月桂酸钠（用于降低表面能）的涂层，温和地制备了具有彩色和超疏水性能的竹子。所得到的负载有月桂酸钠的钴镍双氢氧化物层（CoNi-DH-La）被证明是一种高效的超疏水层，具有优异的化学和机械稳定性。令人印象深刻的是，所获得的负载 CoNi-DH-La 的竹片（BS-CoNi-DH-La）在防霉、阻燃和自清洁方面表现出良好的性能。更重要的是，通过在制备过程中改变无机盐的类型，这种温和的方法可以赋予竹子多种不褪色的颜色，并显示出大规模生产的良好潜力。
