Composite modifier, reinforced cement-based composite material and preparation method thereof: Fid-Bau Portal

Composite modifier, reinforced cement-based composite material and preparation method thereof

DU YUHANG / YANG JIAN / LI LIHUI / LI HUANYU

The invention provides a composite modifier, a reinforced cement-based composite material and a preparation methods thereof, the composite modifier is compounded by graphene oxide and carbon nanotubes, and the dry weight part ratio of the graphene oxide to the carbon nanotubes is 1-4: 1-4. The reinforced cement-based composite material comprises a graphene oxide/carbon nanotube composite modifier,the graphene oxide/carbon nanotube composite modifier is compounded by graphene oxide and carbon nanotubes to form a nano-scale three-dimensional reinforced structure, and omnibearing reinforcement can be carried out in the portland cement-based composite material. According to the preparation method, the dispersity of the carbon nanotubes is improved, and the dispersion stability of a graphene oxide and carbon nanotube compounded enhanced system is improved; the strength of the Portland cement-based material is greatly improved, and the improvement amplitude is far greater than that of separately used graphene oxide and carbon nanotubes with the same doping amount; the internal structure of the Portland cement-based material is improved, and the effect is better than that of single use of graphene oxide and carbon nanotubes with the same doping amount.

本发明提供一种复合改性剂、增强水泥基复合材料及其制备方法，复合改性剂由氧化石墨烯和碳纳米管复配，氧化石墨烯与碳纳米管复配的干重质量份比1‑4:1‑4。增强水泥基复合材料包含氧化石墨烯/碳纳米管复合改性剂，氧化石墨烯/碳纳米管复合改性剂由氧化石墨烯和碳纳米管复配后形成具有纳米尺度的三维增强结构，能在硅酸盐水泥基复合材料内部进行全方位的增强。本发明改善了碳纳米管的分散性，提升了氧化石墨烯和碳纳米管复配增强体系的分散稳定性；大幅度提升硅酸盐水泥基材料的强度，提升幅度远大于同掺量单独使用氧化石墨烯和碳纳米管；改善了硅酸盐水泥基材料内部结构，效果优于同掺量单独使用氧化石墨烯和碳纳米管。

Zugriff

Download

Seitennavigation

Dokumentinformationen

Ähnliche Titel

Exportieren, teilen und zitieren