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公开(公告)号：US20250128235A1
公开(公告)日：2025-04-24
申请号：US19001707
申请日：2024-12-26
Applicant: Hunan Institute of Science and Technology
Inventor： Yongbing Yuan , Hao Ma , Junkang Shi , Congshan Zhou , An Li , Lijun Li , Jundong Xu
Abstract: A COF@hydromagnesite composite material and its preparation method and application are disclosed. The preparation method of the composite material includes the following steps. Firstly, diisocyanate organic matters are used as a modifier to carry out chemical reaction with the hydromagnesite powder to obtain modified hydromagnesite powder particles. Secondly, tris(4-aminophenyl)amine and 2,5-dihydroxyterephthalaldehyde are adopted as reaction monomers for reacting to obtain the Covalent Organic Framework (COF) material. And finally, taking modified hydromagnesite powder particle as a core and COF as a shell, the COF@hydromagnesite composite material is prepared. The COF@hydromagnesite composite material synthesized by the method disclosed by the disclosure is simple in preparation process, high in stability and good in selectivity, which can be used for adsorption treatment of lead ions in water.
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2.发明授权公开(公告)号：US12209188B2
公开(公告)日：2025-01-28
申请号：US18807393
申请日：2024-08-16
Applicant: Hunan Institute of Science and Technology
Inventor： Yongbing Yuan , Junkang Shi , Congshan Zhou , An Li , Lijun Li , Jundong Xu , Hao Ma
Abstract: The present invention provides an ultrafine modified hydromagnesite powder, and a preparation method and application thereof. The preparation method comprises the following steps: drying ultrafine hydromagnesite, then adding a certain amount of organic dispersion reagent, isocyanate compound and catalyst, stirring at a certain temperature for a period of time, filtering, washing and drying to obtain powder 1; taking the powder 1, a certain amount of organic dispersion reagent and fatty amine, stirring at a certain temperature for a period of time, filtering, washing and drying to obtain the ultrafine modified hydromagnesite powder. The powder is mixed with polyethylene and an auxiliary agent, and extruded for granulation at 160-200° C. to obtain polyethylene composite material. The material has excellent tensile strength and flame retardant property.
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3.发明申请公开(公告)号：US20240409748A1
公开(公告)日：2024-12-12
申请号：US18807393
申请日：2024-08-16
Applicant: Hunan Institute of Science and Technology
Inventor： Yongbing Yuan , Junkang Shi , Congshan Zhou , An Li , Lijun Li , Jundong Xu , Hao Ma
Abstract: The present invention provides an ultrafine modified hydromagnesite powder, and a preparation method and application thereof. The preparation method comprises the following steps: drying ultrafine hydromagnesite, then adding a certain amount of organic dispersion reagent, isocyanate compound and catalyst, stirring at a certain temperature for a period of time, filtering, washing and drying to obtain powder 1; taking the powder 1, a certain amount of organic dispersion reagent and fatty amine, stirring at a certain temperature for a period of time, filtering, washing and drying to obtain the ultrafine modified hydromagnesite powder. The powder is mixed with polyethylene and an auxiliary agent, and extruded for granulation at 160-200° C. to obtain polyethylene composite material. The material has excellent tensile strength and flame retardant property.
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公开(公告)号：US12296318B2
公开(公告)日：2025-05-13
申请号：US19001707
申请日：2024-12-26
Applicant: Hunan Institute of Science and Technology
Inventor： Yongbing Yuan , Hao Ma , Junkang Shi , Congshan Zhou , An Li , Lijun Li , Jundong Xu
Abstract: A COF@hydromagnesite composite material and its preparation method and application are disclosed. The preparation method of the composite material includes the following steps. Firstly, diisocyanate organic matters are used as a modifier to carry out chemical reaction with the hydromagnesite powder to obtain modified hydromagnesite powder particles. Secondly, tris(4-aminophenyl)amine and 2,5-dihydroxyterephthalaldehyde are adopted as reaction monomers for reacting to obtain the Covalent Organic Framework (COF) material. And finally, taking modified hydromagnesite powder particle as a core and COF as a shell, the COF@hydromagnesite composite material is prepared. The COF@hydromagnesite composite material synthesized by the method disclosed by the disclosure is simple in preparation process, high in stability and good in selectivity, which can be used for adsorption treatment of lead ions in water.
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