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用水泥熟料作胶凝剂,探讨粉末活性炭的成型及性能。通过引入硅微粉与采取蒸压养护措施提高材料强度、缩短制备周期;用扫描电子显微镜(SEM)观察微观形貌,用抗压强度、碘吸附值、气孔率、吸水率、含炭量等指标评价试样的综合性能。研究结果表明,将70%(质量分数)活性炭粉末、25%(质量分数)水泥熟料粉末与5%(质量分数)硅微粉充分混合均匀后,造粒、成型,在195℃蒸压釜中养护6h,可制得性能良好的无机胶凝成型活性炭材料;试样的物理性能:碘吸附值为551.72mg/g,抗压强度为7.25MPa,炭含量为58.48%,气孔率为57.34%,吸水率为69.42%。

Cement clinker as inorganic cement binder was used to explore the forming and properties of powder activated carbon.Adding silicon micro powder and using steam pressure curing in the process for improving the strength of the materials and shortening sample preparation cycle.The scanning electron microscopy (SEM), compressive strength,iodine adsorption value,the porosity,water absorption,carbon content were used to in-testigate the microstructures and the properties of activated carbon monoliths.The results show that 70wt% of activated carbon,25wt% of cement clinker and 5wt% of silica powder were mixed,granulated,and molded, and then steam pressure curing at 195℃ for 6h would provide a new path of getting the good properties of acti-vated carbon monoliths;the corresponding properties of the optimal samples are listed below:the iodine ad-sorption value was 551.72mg/g,and the compressive strength was 7.25MPa.The carbon content of 58.48%;the porosity was 57.34%,water absorption was 69.42%.

参考文献

[1] Maria Jorda-Beneyto;Dolores Lozano-Castello;Fabian Suarez-Garcia .Advanced activated carbon monoliths and activated carbons for hydrogen storage[J].Microporous and mesoporous materials: The offical journal of the International Zeolite Association,2008(1/3):235-242.
[2] 王秀芳,张会平,肖新颜,陈焕钦.高比表面积活性炭研制进展[J].功能材料,2005(07):975-977,980.
[3] Lozano-Castello D.;Cazorla-Amoros D.;Linares-Solana A.;Quinn DF. .Activated carbon monoliths for methane storage: influence of binder[J].Carbon: An International Journal Sponsored by the American Carbon Society,2002(15):2817-2825.
[4] Ubago-Perez, R;Carrasco-Marin, F;Fairen-Jimenez, D;Moreno-Castilla, C .Granular and monolithic activated carbons from KOH-activation of olive stones[J].Microporous and Mesoporous Materials,2006(1/3):64-70.
[5] 袁爱军,查庆芳,李兆丰,郭燕生,孙新.天然气储存用多孔炭的研究Ⅱ.粉状多孔炭的成型及其二次活化[J].炭素技术,2004(01):1-5.
[6] Nagle D C;Byme C E .Carbonized wood and materials formed therefrom[P].USP:6124028,2000-09-26.
[7] M.Molina-Sabio;J.C.Gonzlaez;F.Rodriguez-Reinoso .Adsorption of NH_3 and H_2S on activated carbon and activated carbon-sepiolite pellets[J].Carbon: An International Journal Sponsored by the American Carbon Society,2004(2):448-450.
[8] M. Yates;J. Blanco;M. A. Martin-Luengo;M. P. Martin .Vapour adsorption capacity of controlled porosity honeycomb monoliths[J].Microporous and Mesoporous Materials,2003(2/3):219-231.
[9] 龙先兵,吴任平.可再生无机胶凝成型活性炭材料的苯吸附特性[J].硅酸盐通报,2012(04):785-788.
[10] 木质活性炭试验方法碘吸附值的测定[S].
[11] 戴辉.硅微粉在混凝土修补料中的增强作用[J].四川建材,2009(01):5-7.
[12] Carrier R E .Concrete curing tests[J].Concrete Interna-tional,1983,5(04):23-26.
[13] 赵兴英 .影响蒸养水泥净浆性能的因素研究[D].中南大学,2010.
[14] 赵兴英,刘宝举,江南宁.蒸养参数对水泥净浆水化性能的影响[J].混凝土,2010(04):28-30.
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