Triazole-forming waterborne polyurethane composites fabricated with silane coupling agent functionalized nano-silica

► Click chemistry was exploited to form the functional waterborne polyurethane. ► Fabricate waterborne polyurethane can effectively link nano-silica and silane coupling agent together by triazole ring. ► Nano-silica dispersed well in the functional waterborne polyurethane. ► The properties of the functional waterborne polyurethane were exhibited well with the modification of the functional nano-silica.