文献类型：期刊文献

英文题名：Durable wear-resistant and antislip epoxy-EPU nanocomposites enabled by silane-modified graphene oxide for sports fields

作者：Yi, Hongling[1];Zhang, Mingfei[1];Lin, Heng[1];Gong, Weiguang[1]

机构：[1]East China Univ Sci & Technol, Sports Mat R&D Ctr, Shanghai 200237, Peoples R China

年份：2026

卷号：23

期号：1

起止页码：479

外文期刊名：JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH

收录：;EI(收录号：20254419417201);WOS:【SCI-EXPANDED(收录号:WOS:001603500700001)】；

语种：英文

外文关键词：Slip resistance; Wear; Silane coupling agent; Graphene oxide; Epoxy; EPU

摘要：Epoxy coatings are frequently applied to the surfaces of sports fields to enhance their durability and performance. This work endeavored to enhance slip resistance of these sports surfaces by examining impact of silane coupling agents-specifically KH550 and KH560-on graphene oxide. The graphene oxide was modified through an in situ grafting process and then incorporated into an epoxy/epoxide-polyurethane (EPU) nanocomposite. The silane-modified graphene oxide was found to be uniformly dispersed within the epoxy resin, with the KH550-modified variant exhibiting superior tensile strength, thermal stability, and glass transition temperature (Tg) compared to the KH560-modified version. Interestingly, the incorporation of KH560-modified graphene oxide into the epoxy-EPU nanocomposite led to an increase in the loss tangent (tan delta), whereas the addition of KH550-modified graphene oxide resulted in a decrease in tan delta. For tribological properties, the nanocomposite containing KH560-modified graphene oxide demonstrated a higher coefficient of friction while significantly reducing the wear rate when compared to the unmodified EPU-EP composite. This improvement is believed to stem from the increased hysteresis and adhesion friction provided by the KH560-modified graphene oxide. The work suggests that incorporating 0.2 wt% of KH560-modified graphene oxide may be the optimal concentration for producing EPU-EP composites that offer a satisfactory balance between wear resistance and slip resistance.