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A platform for research: civil engineering, architecture and urbanism
Janus structure concrete reinforcing agent as well as preparation method and application thereof
The invention provides a Janus structure concrete reinforcing agent and a preparation method and application thereof.The preparation method includes the steps that organic polymers and a silicon source are subjected to a condensation reaction to generate nano-silica polymer composite material (SiO2-R) suspension liquid, metal particles are complexed with the SiO2-R suspension liquid to create a nano-crystal nucleus C-S-H growth environment, and the Janus structure concrete reinforcing agent is obtained. And the size and performance of the crystal nucleus are controlled through macromolecules. And the early strength and the later strength of the concrete are enhanced through a nano crystal nucleus effect and a small-size effect in the concrete. And the surfaces of the nano particles are provided with hydrophilic high polymer materials, and the materials can quickly migrate and diffuse in a concrete system, so that the strength improvement is promoted. According to the invention, Fe < 3 + > is complexed with an organic polymer to form water-phase gel, C-S-H is generated in the water-phase gel, and the size and performance of C-S-H are controlled by the gel, so that the Janus structure nano composite material with excellent performance is synthesized.
本发明提供了一种Janus结构混凝土增强剂及其制备方法和应用，本发明首先是通过有机高分子与硅源发生缩合反应，生成纳米二氧化硅高分子复合材料(SiO2‑R)悬浮液，其次是通过金属粒子络合SiO2‑R悬浮液，营造纳米晶核C‑S‑H生长环境，并且通过高分子控制晶核的尺寸与性能。在混凝土中通过纳米的晶核效应以及小尺寸效应，增强混凝土的早期强度以及后期强度。并且纳米粒子表面有亲水高分子材料，该材料在混凝土体系中迁移扩散较快，对于强度提升有促进效果。本发明通过Fe3+络合有机高分子，形成水相凝胶，C‑S‑H在其中生成，凝胶控制C‑S‑H的尺寸与性能，从而合成出具有优异性能的Janus结构纳米复合材料。
Janus structure concrete reinforcing agent as well as preparation method and application thereof
The invention provides a Janus structure concrete reinforcing agent and a preparation method and application thereof.The preparation method includes the steps that organic polymers and a silicon source are subjected to a condensation reaction to generate nano-silica polymer composite material (SiO2-R) suspension liquid, metal particles are complexed with the SiO2-R suspension liquid to create a nano-crystal nucleus C-S-H growth environment, and the Janus structure concrete reinforcing agent is obtained. And the size and performance of the crystal nucleus are controlled through macromolecules. And the early strength and the later strength of the concrete are enhanced through a nano crystal nucleus effect and a small-size effect in the concrete. And the surfaces of the nano particles are provided with hydrophilic high polymer materials, and the materials can quickly migrate and diffuse in a concrete system, so that the strength improvement is promoted. According to the invention, Fe < 3 + > is complexed with an organic polymer to form water-phase gel, C-S-H is generated in the water-phase gel, and the size and performance of C-S-H are controlled by the gel, so that the Janus structure nano composite material with excellent performance is synthesized.
本发明提供了一种Janus结构混凝土增强剂及其制备方法和应用，本发明首先是通过有机高分子与硅源发生缩合反应，生成纳米二氧化硅高分子复合材料(SiO2‑R)悬浮液，其次是通过金属粒子络合SiO2‑R悬浮液，营造纳米晶核C‑S‑H生长环境，并且通过高分子控制晶核的尺寸与性能。在混凝土中通过纳米的晶核效应以及小尺寸效应，增强混凝土的早期强度以及后期强度。并且纳米粒子表面有亲水高分子材料，该材料在混凝土体系中迁移扩散较快，对于强度提升有促进效果。本发明通过Fe3+络合有机高分子，形成水相凝胶，C‑S‑H在其中生成，凝胶控制C‑S‑H的尺寸与性能，从而合成出具有优异性能的Janus结构纳米复合材料。
Janus structure concrete reinforcing agent as well as preparation method and application thereof
一种Janus结构混凝土增强剂及其制备方法和应用
ZHU XUERUI (author) / CHEN FENG (author) / WANG YU (author) / JIANG DACHAO (author) / QIAN SHANSHAN (author) / SONG NANJING (author) / SI HONGZHEN (author) / HUANG WEIXING (author) / WEN LIXIN (author) / ZHAO YAN (author)
2024-01-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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