Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Slow-release self-adaptive expansion microcapsule, preparation method and cement-based material
The invention discloses a slow-release self-adaptive expansion microcapsule, a preparation method and a cement-based material, the slow-release self-adaptive expansion microcapsule is of a core-shell structure, and the core-shell structure comprises a plurality of cores composed of 100 parts of an expanding agent, 5-15 parts of an adhesive and 10-25 parts of an active filler; the shell is formed by 5-20 parts of a coating agent; wherein the shell covers the plurality of cores and forms a core-shell structure; the shell can be dissolved in a liquid environment to release the plurality of cores to absorb the liquid and create expansion. The microcapsule has a core-shell double-layer structure, and comprises an outer polymer shell layer and an inner core, wherein the inner core contains a self-adaptive expansion material, and the outer polymer shell layer serves as an outer layer. The external polymer shell layer ensures the slow release effect of the microcapsule, and meanwhile protects the inner core from being influenced by water in cement paste, and the inner core can be pumped to a target layer along with the paste; the internal expansion material core ensures that the capsule can rapidly absorb water and expand after being released, so that the aims of preventing channeling and leaking stoppage are fulfilled.
本申请公开了缓释自适应膨胀微胶囊、制备方法及水泥基材料，缓释自适应膨胀微胶囊为核壳结构，核壳结构具有：由100份膨胀剂、5~15份粘合剂和10~25份活性填料构成的多个核；以及由5~20份包覆剂形成的壳；其中，壳包覆多个核并形成核壳结构；壳能够在液体环境中被溶解，以释放多个核吸收液体并产生膨胀。本申请的微胶囊具有核壳双层结构，包括外层的高分子壳层和内层含有自适应膨胀材料的内核。外部高分子壳层确保了微胶囊的缓释作用，同时保护内核不受水泥浆中水份影响，能随浆体泵送到目的层；内部的膨胀材料内核确保在胶囊释放后可迅速吸水膨胀，达到防窜堵漏目的。
Slow-release self-adaptive expansion microcapsule, preparation method and cement-based material
The invention discloses a slow-release self-adaptive expansion microcapsule, a preparation method and a cement-based material, the slow-release self-adaptive expansion microcapsule is of a core-shell structure, and the core-shell structure comprises a plurality of cores composed of 100 parts of an expanding agent, 5-15 parts of an adhesive and 10-25 parts of an active filler; the shell is formed by 5-20 parts of a coating agent; wherein the shell covers the plurality of cores and forms a core-shell structure; the shell can be dissolved in a liquid environment to release the plurality of cores to absorb the liquid and create expansion. The microcapsule has a core-shell double-layer structure, and comprises an outer polymer shell layer and an inner core, wherein the inner core contains a self-adaptive expansion material, and the outer polymer shell layer serves as an outer layer. The external polymer shell layer ensures the slow release effect of the microcapsule, and meanwhile protects the inner core from being influenced by water in cement paste, and the inner core can be pumped to a target layer along with the paste; the internal expansion material core ensures that the capsule can rapidly absorb water and expand after being released, so that the aims of preventing channeling and leaking stoppage are fulfilled.
本申请公开了缓释自适应膨胀微胶囊、制备方法及水泥基材料，缓释自适应膨胀微胶囊为核壳结构，核壳结构具有：由100份膨胀剂、5~15份粘合剂和10~25份活性填料构成的多个核；以及由5~20份包覆剂形成的壳；其中，壳包覆多个核并形成核壳结构；壳能够在液体环境中被溶解，以释放多个核吸收液体并产生膨胀。本申请的微胶囊具有核壳双层结构，包括外层的高分子壳层和内层含有自适应膨胀材料的内核。外部高分子壳层确保了微胶囊的缓释作用，同时保护内核不受水泥浆中水份影响，能随浆体泵送到目的层；内部的膨胀材料内核确保在胶囊释放后可迅速吸水膨胀，达到防窜堵漏目的。
Slow-release self-adaptive expansion microcapsule, preparation method and cement-based material
一种缓释自适应膨胀微胶囊、制备方法及水泥基材料
YANG TAO (Autor:in) / ZHUANG PEIZHI (Autor:in) / YU ZHEN (Autor:in) / LI LIPING (Autor:in) / CHE LIN (Autor:in) / QIAN YUANSHUN (Autor:in) / WEI YUCHENG (Autor:in) / WANG LIMING (Autor:in) / GAO QINGWEI (Autor:in) / TANG YIBIN (Autor:in)
27.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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