Inorganic/lignin type polymer composite nanoparticles, preparation method therefor and application thereof

US9695318B2 · kind B2 · utility

Assignee

• South China University of Technology · CN

Inventors

• Xueqing Qiu · 流花街道, CN
• Dongjie Yang · 流花街道, CN
• Wenyuan GUO · 流花街道, CN
• Mingsong Zhou · Lo Wu, CN
• Jinhao Huang · 流花街道, CN
• Conghua Yi · 流花街道, CN
• Yuan Li · Shandong, CN

Key dates

• Filing date: Nov 28, 2014
• Grant date: Jul 4, 2017
• Expiry date: Nov 28, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K2003/267
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The preparation method includes: adding an activating agent into a basic alkaline lignin solution first, then adding a carboxylating agent and reacting to obtain a carboxylated alkaline lignin; dissolving a phosphorylating agent into water, adding epichlorohydrin, and reacting to obtain a hydroxyl phosphate type compound; mixing the carboxylated alkaline lignin and the hydroxyl phosphate type compound and reacting to obtain a lignin type polymer; adding an inorganic nanoparticle suspension into the lignin type polymer and adding an acid for codeposition to obtain the product after aging and drying.