A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Chitosan-polyacrylic acid-Fe < 3 + > hydrogel cement-based composite material and preparation method thereof
The invention relates to a chitosan-polyacrylic acid-Fe < 3 + > hydrogel cement-based composite material and a preparation method thereof. Comprising the following steps: (1) constructing a layered cement skeleton with one-way pores by adopting a directional ice template method; (2) preparing a chitosan-polyacrylic acid-Fe < 3 + > hydrogel solution; (3) filling the chitosan-polyacrylic acid-Fe < 3 + > hydrogel into one-way holes of the layered cement skeleton in a vacuum negative pressure impregnation manner; and (4) the cement skeleton filled with the hydrogel is subjected to a'freezing-unfreezing 'multi-cycle mode to obtain the high-toughness self-repairing cement-based-chitosan-polyacrylic acid-Fe < 3 + > hydrogel shell-like composite material. According to the invention, the hydrogel and the cement base are bonded together through a freeze-thaw cycle to prepare the shell-imitated structure, so that the toughness, strength, impact resistance and structural reliability of the concrete are enhanced, and the concrete has a self-repairing effect.
本发明为一种壳聚糖‑聚丙烯酸‑Fe3+水凝胶水泥基复合材料及制备方法。包括如下步骤：(1)采用定向冰模板法构建具有单向孔隙的层状水泥骨架；(2)配置壳聚糖‑聚丙烯酸‑Fe3+水凝胶溶液；(3)采用真空负压浸渍的方式将壳聚糖‑聚丙烯酸‑Fe3+水凝胶填充到层状水泥骨架的单向孔中；(4)对填充水凝胶的水泥骨架采用“冷冻‑解冻”多次循环的方式得到高韧性自修复水泥基‑壳聚糖‑聚丙烯酸‑Fe3+水凝胶仿贝壳复合材料。本发明通过“冻融循环”将水凝胶和水泥基胶结在一起，制备成仿贝壳结构，增强了混泥土的韧性、强度、耐冲击性和结构可靠性，且具有自修复作用。
Chitosan-polyacrylic acid-Fe < 3 + > hydrogel cement-based composite material and preparation method thereof
The invention relates to a chitosan-polyacrylic acid-Fe < 3 + > hydrogel cement-based composite material and a preparation method thereof. Comprising the following steps: (1) constructing a layered cement skeleton with one-way pores by adopting a directional ice template method; (2) preparing a chitosan-polyacrylic acid-Fe < 3 + > hydrogel solution; (3) filling the chitosan-polyacrylic acid-Fe < 3 + > hydrogel into one-way holes of the layered cement skeleton in a vacuum negative pressure impregnation manner; and (4) the cement skeleton filled with the hydrogel is subjected to a'freezing-unfreezing 'multi-cycle mode to obtain the high-toughness self-repairing cement-based-chitosan-polyacrylic acid-Fe < 3 + > hydrogel shell-like composite material. According to the invention, the hydrogel and the cement base are bonded together through a freeze-thaw cycle to prepare the shell-imitated structure, so that the toughness, strength, impact resistance and structural reliability of the concrete are enhanced, and the concrete has a self-repairing effect.
本发明为一种壳聚糖‑聚丙烯酸‑Fe3+水凝胶水泥基复合材料及制备方法。包括如下步骤：(1)采用定向冰模板法构建具有单向孔隙的层状水泥骨架；(2)配置壳聚糖‑聚丙烯酸‑Fe3+水凝胶溶液；(3)采用真空负压浸渍的方式将壳聚糖‑聚丙烯酸‑Fe3+水凝胶填充到层状水泥骨架的单向孔中；(4)对填充水凝胶的水泥骨架采用“冷冻‑解冻”多次循环的方式得到高韧性自修复水泥基‑壳聚糖‑聚丙烯酸‑Fe3+水凝胶仿贝壳复合材料。本发明通过“冻融循环”将水凝胶和水泥基胶结在一起，制备成仿贝壳结构，增强了混泥土的韧性、强度、耐冲击性和结构可靠性，且具有自修复作用。
Chitosan-polyacrylic acid-Fe < 3 + > hydrogel cement-based composite material and preparation method thereof
壳聚糖-聚丙烯酸-Fe3+水凝胶水泥基复合材料及制备方法
YANG YU (author) / SUN WEIWEI (author) / SUN XICHEN (author) / FENG JUN (author) / HUANG JINGNAN (author) / CONG JIQI (author) / WANG YANG (author) / FANG DEMAO (author) / GAO YIFEI (author)
2024-01-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
B28C
Tonaufbereitung
,
PREPARING CLAY
Nickel-zinc ferrite/polyacrylic acid nano-composite material and preparation method thereof
| European Patent Office | 2015
| European Patent Office | 2024
Hydroxyapatite filled chitosan-polyacrylic acid polyelectrolyte complexes
| British Library Online Contents | 2003
| European Patent Office | 2019
| European Patent Office | 2018