Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Modified basalt fiber as well as preparation method and application thereof
The invention discloses a modified basalt fiber as well as a preparation method and application thereof, and belongs to the technical field of fiber preparation. A preparation method of the modified basalt fiber comprises the following steps: dispersing calcium carbonate in water, and adding polyethyleneimine for reaction to obtain calcium carbonate/PEI; then sequentially taking polymethyl acrylate and ethidene diamine as modifiers, and reacting to obtain calcium carbonate/PEI/PAMAM-1; the step 1.2 is repeated, and calcium carbonate/PEI/PAMAM-2 is prepared; mixing with an organic compound and an organic solvent to obtain slurry for later use; the preparation method comprises the following steps: removing impurities on the surfaces of original basalt fibers to obtain pretreated basalt fibers, and soaking the pretreated basalt fibers in a hydrochloric acid solution at 30-40 DEG C to obtain acid-treated basalt fibers; and soaking the acid-treated basalt fiber in the slurry, and soaking at normal temperature to obtain the modified basalt fiber. The prepared modified basalt fiber can improve the crack resistance and compressive strength of concrete.
本发明公开了一种改性玄武岩纤维及其制备方法和应用，属于纤维制备技术领域。改性玄武岩纤维制备方法如下：将碳酸钙分散于水中，加入聚乙烯亚胺反应得到碳酸钙/PEI；然后依次以聚丙烯酸甲酯和乙二胺为改性剂，反应得到碳酸钙/PEI/PAMAM‑1；重复步骤1.2，制备得到碳酸钙/PEI/PAMAM‑2；将其与有机化合物、有机溶剂混合得到浆料，备用；去除原始玄武岩纤维表面的杂质后，得到预处理玄武岩纤维，将预处理玄武岩纤维浸于盐酸溶液中，30‑40℃浸泡得到酸处理玄武岩纤维；将酸处理玄武岩纤维浸于浆料中，常温浸渍得到改性玄武岩纤维。本发明制备的改性玄武岩纤维可以提高混凝土的抗裂性能和抗压强度。
Modified basalt fiber as well as preparation method and application thereof
The invention discloses a modified basalt fiber as well as a preparation method and application thereof, and belongs to the technical field of fiber preparation. A preparation method of the modified basalt fiber comprises the following steps: dispersing calcium carbonate in water, and adding polyethyleneimine for reaction to obtain calcium carbonate/PEI; then sequentially taking polymethyl acrylate and ethidene diamine as modifiers, and reacting to obtain calcium carbonate/PEI/PAMAM-1; the step 1.2 is repeated, and calcium carbonate/PEI/PAMAM-2 is prepared; mixing with an organic compound and an organic solvent to obtain slurry for later use; the preparation method comprises the following steps: removing impurities on the surfaces of original basalt fibers to obtain pretreated basalt fibers, and soaking the pretreated basalt fibers in a hydrochloric acid solution at 30-40 DEG C to obtain acid-treated basalt fibers; and soaking the acid-treated basalt fiber in the slurry, and soaking at normal temperature to obtain the modified basalt fiber. The prepared modified basalt fiber can improve the crack resistance and compressive strength of concrete.
本发明公开了一种改性玄武岩纤维及其制备方法和应用，属于纤维制备技术领域。改性玄武岩纤维制备方法如下：将碳酸钙分散于水中，加入聚乙烯亚胺反应得到碳酸钙/PEI；然后依次以聚丙烯酸甲酯和乙二胺为改性剂，反应得到碳酸钙/PEI/PAMAM‑1；重复步骤1.2，制备得到碳酸钙/PEI/PAMAM‑2；将其与有机化合物、有机溶剂混合得到浆料，备用；去除原始玄武岩纤维表面的杂质后，得到预处理玄武岩纤维，将预处理玄武岩纤维浸于盐酸溶液中，30‑40℃浸泡得到酸处理玄武岩纤维；将酸处理玄武岩纤维浸于浆料中，常温浸渍得到改性玄武岩纤维。本发明制备的改性玄武岩纤维可以提高混凝土的抗裂性能和抗压强度。
Modified basalt fiber as well as preparation method and application thereof
一种改性玄武岩纤维及其制备方法和应用
SHAO JINGGAN (Autor:in) / LI WENKAI (Autor:in) / WANG JUNCHAO (Autor:in) / WANG XIAO (Autor:in) / WANG XIN (Autor:in) / WANG BAOLIN (Autor:in) / GAO YANLONG (Autor:in) / XIE XIANGBING (Autor:in)
05.04.2024
Patent
Elektronische Ressource
Chinesisch
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