Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of intelligent self-healing admixture
The invention discloses a preparation method of an intelligent self-healing admixture, which comprises the following steps: (1) dissolving 5-10 parts of dicyclopentadiene (DCPD) in 90-95 parts of N, N-dimethylformamide (DMF) to obtain a solution A, (2) dissolving 5-10 parts of polyacrylonitrile (PAN) into 90-95 parts of N, N-dimethylformamide (DMF) to obtain a solution B, (3) carrying out coaxialelectrostatic spinning by taking the liquid A as a core layer and the liquid B as a sheath layer, wherein the fixed voltage is 15-22KV, (4) cutting the fibers obtained by electrostatic spinning in thestep (3) into short fibers with the length of 5-20mm, (5) stirring and dissolving 0.25 part of polyacrylamide in 40-45 parts of tap water to obtain a liquid C, and (6) stirring and mixing 60 parts ofthe liquid C and 40 parts of the short fibers obtained in the step (4) to obtain the intelligent self-healing admixture. When the intelligent self-healing admixture prepared by the invention is applied to concrete, the strength of a concrete building structure can be greatly enhanced.
本发明公开了一种智能自愈合外加剂的制备方法，包括以下制备步骤：（1）、将5‑10份双环戊二烯（DCPD）溶解于90‑95份N，N‑二甲基甲酰胺（DMF）中得到液A；（2）、将5‑10份聚丙烯腈（PAN）溶于90‑95份N，N‑二甲基甲酰胺（DMF）中得到液B；（3）、以液A为芯层与液B为鞘层进行同轴静电纺丝，其中固定电压为15‑22KV；（4）、将上述步骤（3）中静电纺丝得到的纤维切断为长度5‑20mm的短纤维；（5）、将0.25份聚丙烯酰胺搅拌溶解于40‑45份自来水中，得到液C；（6）、将60份液C与40份上述步骤（4）中得到的短纤维搅拌混合得到一种智能自愈合外加剂；将本发明制备的智能自愈合外加剂应用于混凝土中，能极大增强混凝土建筑结构的强度。
Preparation method of intelligent self-healing admixture
The invention discloses a preparation method of an intelligent self-healing admixture, which comprises the following steps: (1) dissolving 5-10 parts of dicyclopentadiene (DCPD) in 90-95 parts of N, N-dimethylformamide (DMF) to obtain a solution A, (2) dissolving 5-10 parts of polyacrylonitrile (PAN) into 90-95 parts of N, N-dimethylformamide (DMF) to obtain a solution B, (3) carrying out coaxialelectrostatic spinning by taking the liquid A as a core layer and the liquid B as a sheath layer, wherein the fixed voltage is 15-22KV, (4) cutting the fibers obtained by electrostatic spinning in thestep (3) into short fibers with the length of 5-20mm, (5) stirring and dissolving 0.25 part of polyacrylamide in 40-45 parts of tap water to obtain a liquid C, and (6) stirring and mixing 60 parts ofthe liquid C and 40 parts of the short fibers obtained in the step (4) to obtain the intelligent self-healing admixture. When the intelligent self-healing admixture prepared by the invention is applied to concrete, the strength of a concrete building structure can be greatly enhanced.
本发明公开了一种智能自愈合外加剂的制备方法，包括以下制备步骤：（1）、将5‑10份双环戊二烯（DCPD）溶解于90‑95份N，N‑二甲基甲酰胺（DMF）中得到液A；（2）、将5‑10份聚丙烯腈（PAN）溶于90‑95份N，N‑二甲基甲酰胺（DMF）中得到液B；（3）、以液A为芯层与液B为鞘层进行同轴静电纺丝，其中固定电压为15‑22KV；（4）、将上述步骤（3）中静电纺丝得到的纤维切断为长度5‑20mm的短纤维；（5）、将0.25份聚丙烯酰胺搅拌溶解于40‑45份自来水中，得到液C；（6）、将60份液C与40份上述步骤（4）中得到的短纤维搅拌混合得到一种智能自愈合外加剂；将本发明制备的智能自愈合外加剂应用于混凝土中，能极大增强混凝土建筑结构的强度。
Preparation method of intelligent self-healing admixture
一种智能自愈合外加剂的制备方法
GAO ZONGHONG (Autor:in) / CHEN JIE (Autor:in) / FANG SHICHANG (Autor:in) / TIAN YINGBING (Autor:in) / DENG NI (Autor:in)
12.02.2021
Patent
Elektronische Ressource
Chinesisch
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