Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Microcapsule for damage self-repairing in crack initiation stage of coal mine goaf sealing wall and preparation method of microcapsule
The invention discloses a microcapsule for damage self-repairing in a crack initiation stage of a coal mine goaf sealing wall and a preparation method of the microcapsule. The microcapsule comprises aconcrete matrix, a microcapsule repairing material and a curing agent. In addition, the preparation method comprises the steps of prepolymer preparation, emulsification, acidification and curing. Inthe early stage (crack initiation stage) of the sealing wall substrate crack evolution process, cracking is performed under the action of crack tip stress, a core material substance E-51 epoxy resin flows out and is subjected to a curing reaction with a curing agent in concrete to form a curing substance, and cracks are rapidly filled and hardened, so that further expansion of the cracks is prevented, and the self-repairing process of the sealing wall is realized.
本发明公开了一种在煤矿采空区密闭墙裂纹启裂阶段进行损伤自修复的微胶囊及其制备方法，包括混泥土基体、微胶囊修复材料和固化剂。另外，其制备方法包括预聚体制备、乳化、酸化和固化阶段。本发明在密闭墙基体裂纹演化过程的前期阶段（裂纹启裂阶段），在裂纹尖端应力作用下破裂，芯材物质E‑51环氧树脂流出，与混凝土中的固化剂发生固化反应，形成固化物质，迅速充填裂纹并硬化，从而防止裂纹进一步扩大，实现密闭墙的自修复过程。
Microcapsule for damage self-repairing in crack initiation stage of coal mine goaf sealing wall and preparation method of microcapsule
The invention discloses a microcapsule for damage self-repairing in a crack initiation stage of a coal mine goaf sealing wall and a preparation method of the microcapsule. The microcapsule comprises aconcrete matrix, a microcapsule repairing material and a curing agent. In addition, the preparation method comprises the steps of prepolymer preparation, emulsification, acidification and curing. Inthe early stage (crack initiation stage) of the sealing wall substrate crack evolution process, cracking is performed under the action of crack tip stress, a core material substance E-51 epoxy resin flows out and is subjected to a curing reaction with a curing agent in concrete to form a curing substance, and cracks are rapidly filled and hardened, so that further expansion of the cracks is prevented, and the self-repairing process of the sealing wall is realized.
本发明公开了一种在煤矿采空区密闭墙裂纹启裂阶段进行损伤自修复的微胶囊及其制备方法，包括混泥土基体、微胶囊修复材料和固化剂。另外，其制备方法包括预聚体制备、乳化、酸化和固化阶段。本发明在密闭墙基体裂纹演化过程的前期阶段（裂纹启裂阶段），在裂纹尖端应力作用下破裂，芯材物质E‑51环氧树脂流出，与混凝土中的固化剂发生固化反应，形成固化物质，迅速充填裂纹并硬化，从而防止裂纹进一步扩大，实现密闭墙的自修复过程。
Microcapsule for damage self-repairing in crack initiation stage of coal mine goaf sealing wall and preparation method of microcapsule
一种在煤矿采空区密闭墙裂纹启裂阶段进行损伤自修复的微胶囊及其制备方法
FU MINGMING (Autor:in) / JIA XINLEI (Autor:in) / LI YUEJIN (Autor:in) / CAO QING (Autor:in) / GUO WENJIE (Autor:in) / XU LANJUAN (Autor:in) / SHEN JIANJUN (Autor:in) / HU YINGYING (Autor:in) / MA YOUYING (Autor:in)
05.03.2021
Patent
Elektronische Ressource
Chinesisch
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