Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Dispersing agent for inorganic cementing material as well as preparation method and application of dispersing agent
The invention discloses a dispersing agent for an inorganic cementing material as well as a preparation method and application of the dispersing agent, and belongs to the technical field of inorganic cementing material admixtures. The preparation method of the dispersant comprises the following steps: adding a cross-linking agent, a catalyst, a functional monomer and a maleic anhydride copolymer into water, carrying out a polymerization reaction, cooling after the reaction is completed, adding a neutralizing reagent, and adjusting the pH value to obtain the dispersant. According to the invention, functional polymerization is adopted to successfully bond an acid anhydride bond and a functional group bond to a main branch chain of a dispersing agent molecule, so that chemical compounding of the dispersing agent molecule level is realized, and the dispersing agent has better dispersity and fluidity under the conditions of low water cement ratio and low mixing amount. The dispersing agent provided by the invention not only improves the dispersity of an inorganic cementing material, but also improves the properties such as fluidity and strength of the inorganic cementing material, and plays an important role in application of practical engineering.
本发明公开了一种无机胶凝材料用分散剂、其制备方法及应用，属于无机胶凝材料外加剂技术领域。本发明所述的分散剂由如下方法制备而成：将交联剂、催化剂、功能单体和马来酸酐共聚物加入水中，进行聚合反应，待反应完成后，降温，加入中和试剂，调节pH，获得分散剂。本发明采用功能化聚合，成功将酸酐键和功能基团键连接在分散剂分子的主支链上，实现了分散剂分子层面的化学复合，在低水灰比和低掺量下具有较好的分散性和流动度。本发明所述分散剂不仅提高了无机胶凝材料的分散性，而且还提升了其流动性和强度等性能，在实际工程的应用中具有重要作用。
Dispersing agent for inorganic cementing material as well as preparation method and application of dispersing agent
The invention discloses a dispersing agent for an inorganic cementing material as well as a preparation method and application of the dispersing agent, and belongs to the technical field of inorganic cementing material admixtures. The preparation method of the dispersant comprises the following steps: adding a cross-linking agent, a catalyst, a functional monomer and a maleic anhydride copolymer into water, carrying out a polymerization reaction, cooling after the reaction is completed, adding a neutralizing reagent, and adjusting the pH value to obtain the dispersant. According to the invention, functional polymerization is adopted to successfully bond an acid anhydride bond and a functional group bond to a main branch chain of a dispersing agent molecule, so that chemical compounding of the dispersing agent molecule level is realized, and the dispersing agent has better dispersity and fluidity under the conditions of low water cement ratio and low mixing amount. The dispersing agent provided by the invention not only improves the dispersity of an inorganic cementing material, but also improves the properties such as fluidity and strength of the inorganic cementing material, and plays an important role in application of practical engineering.
本发明公开了一种无机胶凝材料用分散剂、其制备方法及应用，属于无机胶凝材料外加剂技术领域。本发明所述的分散剂由如下方法制备而成：将交联剂、催化剂、功能单体和马来酸酐共聚物加入水中，进行聚合反应，待反应完成后，降温，加入中和试剂，调节pH，获得分散剂。本发明采用功能化聚合，成功将酸酐键和功能基团键连接在分散剂分子的主支链上，实现了分散剂分子层面的化学复合，在低水灰比和低掺量下具有较好的分散性和流动度。本发明所述分散剂不仅提高了无机胶凝材料的分散性，而且还提升了其流动性和强度等性能，在实际工程的应用中具有重要作用。
Dispersing agent for inorganic cementing material as well as preparation method and application of dispersing agent
一种无机胶凝材料用分散剂、其制备方法及应用
ZHAI HAORAN (Autor:in) / LIU XIN (Autor:in) / ZOU DELU (Autor:in) / LIU ZHONGSHAN (Autor:in) / CUI YANMIN (Autor:in) / SUN CHUNHUI (Autor:in) / ZHONG AIQING (Autor:in) / SHAN YULONG (Autor:in) / KONG ZHENG (Autor:in) / CHANG PING (Autor:in)
09.08.2024
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2020