Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Self-healing cement paste system and preparation method thereof
The invention provides a self-healing cement paste system and a preparation method thereof. The self-healing cement paste system comprises cement, a self-healing agent, a suspension stabilizer, a fluid loss agent, a dispersing agent, a retarder, an anti-channeling agent, iron ore powder and water. The weight of each component accounts for 5 to 30 percent of the weight of the cement, 0 to 5 percent of the weight of the cement, 1 to 4 percent of the weight of the cement, 0.5 to 3 percent of the weight of the cement, 0 to 1.5 percent of the weight of the cement, 0 to 2 percent of the weight of the cement, 0 to 200 percent of the weight of the cement and 38 to 75 percent of the weight of the cement; the self-healing agent comprises reactants, a sensitizer and a separant, the reactants comprise a framework material and grafting monomers, the framework material is at least one of methyl vinyl silicone rubber, isoprene rubber and nitrile rubber, and the grafting monomers are vinyl acetate and methyl methacrylate; the sensitizer is at least one of triethylene glycol dimethacrylate and triallyl isocyanate, and the separant is white carbon black and calcium stearate. After a cement sheath formed by the self-healing cement paste system generates cracks, the cracks can be self-healed when meeting water, oil hydrocarbon and gas hydrocarbon.
本发明提供一种自愈合水泥浆体系及其制备方法。自愈合水泥浆体系包括水泥、自愈合剂、悬浮稳定剂、降失水剂、分散剂、缓凝剂、防窜剂、铁矿粉和水；各组分重量分别占水泥重量的5‑30％、0‑5％、1‑4％、0.5‑3％、0‑1.5％、0‑2％、0‑200％和38‑75％；自愈合剂包括反应物、敏化剂和隔离剂，反应物包括骨架材料和接枝单体，骨架材料为甲基乙烯基硅橡胶、异戊橡胶、丁腈橡胶中的至少一者，接枝单体为醋酸乙烯酯和甲基丙烯酸甲酯，敏化剂为三乙二醇基二甲基丙烯酸酯和三烯丙基异氰酸酯中的至少一者，隔离剂为白炭黑和硬脂酸钙。自愈合水泥浆体系形成的水泥环产生裂纹后，裂纹遇水、油烃和气烃能自愈合。
Self-healing cement paste system and preparation method thereof
The invention provides a self-healing cement paste system and a preparation method thereof. The self-healing cement paste system comprises cement, a self-healing agent, a suspension stabilizer, a fluid loss agent, a dispersing agent, a retarder, an anti-channeling agent, iron ore powder and water. The weight of each component accounts for 5 to 30 percent of the weight of the cement, 0 to 5 percent of the weight of the cement, 1 to 4 percent of the weight of the cement, 0.5 to 3 percent of the weight of the cement, 0 to 1.5 percent of the weight of the cement, 0 to 2 percent of the weight of the cement, 0 to 200 percent of the weight of the cement and 38 to 75 percent of the weight of the cement; the self-healing agent comprises reactants, a sensitizer and a separant, the reactants comprise a framework material and grafting monomers, the framework material is at least one of methyl vinyl silicone rubber, isoprene rubber and nitrile rubber, and the grafting monomers are vinyl acetate and methyl methacrylate; the sensitizer is at least one of triethylene glycol dimethacrylate and triallyl isocyanate, and the separant is white carbon black and calcium stearate. After a cement sheath formed by the self-healing cement paste system generates cracks, the cracks can be self-healed when meeting water, oil hydrocarbon and gas hydrocarbon.
本发明提供一种自愈合水泥浆体系及其制备方法。自愈合水泥浆体系包括水泥、自愈合剂、悬浮稳定剂、降失水剂、分散剂、缓凝剂、防窜剂、铁矿粉和水；各组分重量分别占水泥重量的5‑30％、0‑5％、1‑4％、0.5‑3％、0‑1.5％、0‑2％、0‑200％和38‑75％；自愈合剂包括反应物、敏化剂和隔离剂，反应物包括骨架材料和接枝单体，骨架材料为甲基乙烯基硅橡胶、异戊橡胶、丁腈橡胶中的至少一者，接枝单体为醋酸乙烯酯和甲基丙烯酸甲酯，敏化剂为三乙二醇基二甲基丙烯酸酯和三烯丙基异氰酸酯中的至少一者，隔离剂为白炭黑和硬脂酸钙。自愈合水泥浆体系形成的水泥环产生裂纹后，裂纹遇水、油烃和气烃能自愈合。
Self-healing cement paste system and preparation method thereof
自愈合水泥浆体系及其制备方法
ZHENG YOUZHI (Autor:in) / FAN YU (Autor:in) / CHEN LILI (Autor:in) / ZHANG ZHANWU (Autor:in) / LIU CHAO (Autor:in) / ZHAO JUN (Autor:in) / JIAO LIBIN (Autor:in) / WANG FUYUN (Autor:in) / WANG YAO (Autor:in) / FU QIANG (Autor:in)
05.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
Autogenous healing of cement paste
| Engineering Index Backfile | 1956
Self-healing and durable cement paste, mortars, and concretes
| Europäisches Patentamt | 2025
SELF-HEALING AND DURABLE CEMENT PASTE, MORTARS, AND CONCRETES
| Europäisches Patentamt | 2019