Under the action of natural environment for a long time,the ancient blue brick has the phenomenon of material deterioration.Graphene was modified with silane coupling agent to obtain functionalized graphene.The structural characteristics were characterized and analyzed using Fourier transform infrared spectroscopy,X-ray photoelectron spectroscopy,and X-ray diffraction.Composite functionalized graphene with isobutyl triethoxysilane to reinforce ancient bricks.Test the contact angle,water absorption rate,capillary water absorption coefficient,and penetration depth of the samples,and evaluate the weather resistance characteristics of the composite material.The results indicate that compared with nano-SiO2 and TEOS,the composite material has good penetration reinforcement effect.The contact angle of the ancient blue brick treated with composite materials is significantly increased,the permeability is moderate,and the water absorption and capillary water absorption coefficient are significantly reduced,and the duability is significenthy improved.
关键词
青砖/石墨烯/渗透加固/耐候性
Key words
ancient blue brick/graphene/penetration reinforcement/weather resistance
维普
万方数据