High mechanical strength superhydrophobic colored sand prepared by a low-temperature strategy  

作　　者：Zhipeng Liu Chi Ma Jing Zhang Hongtao Sun Li Wang Yingdan Wang Shenglong Mu Na Wang 

机构地区：[1]Liaoning Provincial Key Laboratory for Preparation and Application of Special Functional Materials,Shenyang University of Chemical Technology,Shenyang 110142,China [2]Shenyang Key Laboratory for New Functional Coating Materials,Shenyang University of Chemical Technology,Shenyang 110142,China [3]Shenyang Research Institute of Industrial Technology for Advanced Coating Materials,Shenyang 110300,China [4]Liaoning Shunfeng New Material Technology Co.,Ltd.,Shenyang 110326,China

出　　处：《Journal of Materials Science & Technology》2024年第27期203-215,共13页材料科学技术(英文版)

基　　金：supported by the Fundamental Re-search Program for Applications from Liaoning Provincial Depart-ment of Science and Technology-Environmental Friendly Bio-based Polyurethane Coatings(No.2023JH2/101300229);the“Jie Bang Gua Shuai”of Science and Technology Projects of Liaoning Province(No.2021JH1/10400091);the Sino-Spain Joint Laboratory on Ma-terial Science(No.2022JH2/10700005);the Provincial Doctoral Re-search Start-up Fund Project from Liaoning Provincial Department of Science and Technology-The study of fabrication technology on protonic ceramic-based fuel cell by laser-3Dprinting(No.2023-BS-144);The Liaoning Provincial Department of Education youth project-Study on creation and functionalization of low tempera-ture colored aeolian sand(No.JYTQN2023375).

摘　　要：The desert aeolian sand is one of the most abundant resources worldwide,and the utilization of sand with superhydrophobic function has become a heated research field.However,same as other superhy-drophobic materials,the abrasion of the surface will lead to the loss of hydrophobic performance.There-fore,we prepared high-performance and mechanically stable superhydrophobic colored sand with a max-imum water contact angle of 155°by low-temperature layered chaining technique(80℃).The technical property of the co-existence of superhydrophobicity and mechanical stability was achieved on the sur-face of our high mechanical strength superhydrophobic colored sand.The interaction between the grafted particles and water molecules was revealed by molecular adsorption dynamics simulation to investigate the factors that affect hydrophobicity performance.The prepared superhydrophobic colored sand pre-sented stable superhydrophobic performance after 40 min continuous abrasion tests.Moreover,the su-perhydrophobic sand had excellent chemical stability and liquid impact resistance with the composition stability under 240℃.This work presents an environment-friendly,and resource-utilization surface mod-ification method on inert materials like sand under a low-temperature condition.It provides framework surfaces like road ground and architectures with high mechanical strength and functional“layer”through a long-term performance and stable method.

关 键 词：Desert aeolian sand Colored sand High mechanical strength SUPERHYDROPHOBICITY LOW-TEMPERATURE 

分 类 号：TG1[金属学及工艺—金属学]