Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Gel capsule, preparation method thereof and micro-crack self-repairing cement
The invention discloses a gel capsule, a preparation method thereof and micro-crack self-repairing cement, relates to the technical field of functional materials, and can guarantee the sealing integrity and high-pressure-resistant strength of the cement. The gel capsule comprises a gel core material and a wall material coating the core material; the core material is formed by polymerizing an anionic monomer or a functional monomer capable of generating anions after hydrolysis and an acrylic amino ester monomer; the particle size of the core material is 0.15-0.84 mm, and the thickness of the wall material is 5-50 [mu] m. The preparation method comprises the following steps: adding an anionic monomer or a functional monomer capable of generating anions after hydrolysis, an acrylic amino ester monomer and a cross-linking agent into deionized water, uniformly mixing, adding an initiator, reacting, drying and grinding to obtain a core material; preparing at least one of polysaccharide or a modified substance thereof and a semi-synthetic substance into a wall material solution; a wall material solution is sprayed from the top by using a spray drying coating technology, a core material suspends in a reactor, solution drops fall to be in contact with the gel core material, coating and drying are performed, and finally, filtering and drying are performed through a screen.
一种凝胶胶囊及其制备方法和微裂缝自修复水泥，涉及功能材料技术领域，能够保障水泥的密封完整性和抗高压强度。凝胶胶囊包括凝胶芯材和包覆于芯材外的壁材；芯材由阴离子单体或水解后可产生阴离子的功能单体和丙烯酸氨基酯类单体聚合而成；芯材粒径为0.15mm～0.84mm，壁材厚度为5μm～50μm。将阴离子单体或水解后可产生阴离子的功能单体、丙烯酸氨基酯类单体和交联剂加入去离子水中混合均匀，加入引发剂反应后烘干研磨得到芯材；将多糖或其改性物质、半合成类物质中至少一种配成壁材溶液；利用喷雾干燥包覆技术将壁材溶液从顶部喷淋，芯材在反应器中悬浮，溶液液滴下落与凝胶芯材接触、包覆并干燥，最后通过筛网过滤并干燥。
Gel capsule, preparation method thereof and micro-crack self-repairing cement
The invention discloses a gel capsule, a preparation method thereof and micro-crack self-repairing cement, relates to the technical field of functional materials, and can guarantee the sealing integrity and high-pressure-resistant strength of the cement. The gel capsule comprises a gel core material and a wall material coating the core material; the core material is formed by polymerizing an anionic monomer or a functional monomer capable of generating anions after hydrolysis and an acrylic amino ester monomer; the particle size of the core material is 0.15-0.84 mm, and the thickness of the wall material is 5-50 [mu] m. The preparation method comprises the following steps: adding an anionic monomer or a functional monomer capable of generating anions after hydrolysis, an acrylic amino ester monomer and a cross-linking agent into deionized water, uniformly mixing, adding an initiator, reacting, drying and grinding to obtain a core material; preparing at least one of polysaccharide or a modified substance thereof and a semi-synthetic substance into a wall material solution; a wall material solution is sprayed from the top by using a spray drying coating technology, a core material suspends in a reactor, solution drops fall to be in contact with the gel core material, coating and drying are performed, and finally, filtering and drying are performed through a screen.
一种凝胶胶囊及其制备方法和微裂缝自修复水泥，涉及功能材料技术领域，能够保障水泥的密封完整性和抗高压强度。凝胶胶囊包括凝胶芯材和包覆于芯材外的壁材；芯材由阴离子单体或水解后可产生阴离子的功能单体和丙烯酸氨基酯类单体聚合而成；芯材粒径为0.15mm～0.84mm，壁材厚度为5μm～50μm。将阴离子单体或水解后可产生阴离子的功能单体、丙烯酸氨基酯类单体和交联剂加入去离子水中混合均匀，加入引发剂反应后烘干研磨得到芯材；将多糖或其改性物质、半合成类物质中至少一种配成壁材溶液；利用喷雾干燥包覆技术将壁材溶液从顶部喷淋，芯材在反应器中悬浮，溶液液滴下落与凝胶芯材接触、包覆并干燥，最后通过筛网过滤并干燥。
Gel capsule, preparation method thereof and micro-crack self-repairing cement
一种凝胶胶囊及其制备方法和微裂缝自修复水泥
XU KUN (Autor:in) / ZHANG FAN (Autor:in) / HUANG XIAONA (Autor:in) / BAI YUNGANG (Autor:in) / CHI HUI (Autor:in) / DONG XIAOTONG (Autor:in) / WANG PIXIN (Autor:in)
24.11.2023
Patent
Elektronische Ressource
Chinesisch
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