Method for preparing active carbon-based special synthetic paper

US10988898B2 · kind B2 · utility

Assignee

• HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY · CN

Inventors

• Hu Zhou · Shanghai, CN
• Zhiling Qi · Hunan, CN
• Dongdong Wang · Shanghai, CN
• Zhihua Zhou · Shanghai, CN
• Xuan Liu · Mission, US
• Qingquan Liu · Suzhou, CN
• Xiaohong Wang · Roy, US

Key dates

• Filing date: Jun 14, 2018
• Grant date: Apr 27, 2021
• Expiry date: Nov 22, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2203/16
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A method for preparing active carbon-based special synthetic paper capable of degrading harmful substances in environment, including: stirring polyurethane particles and a solvent in a reactor, and standing to completely dissolve the polyurethane particles to obtain a polyurethane solution; adding active carbon having harmful substances adsorption property in the obtained polyurethane solution, stirring and mixing uniformly to obtain a solid-liquid mixture; coating the obtained solid-liquid mixture onto a piece of release paper, soaking the release paper coated with the solid-liquid mixture into an aqueous solution of silver nitrate having photocatalytic degradation property, completely curing the solid-liquid mixture to form a film, and soaking the release paper and the film into an aqueous solution of sodium chloride; drying the obtained release paper and the film in an electric blast drying oven, and stripping the film from the release paper to obtain the active carbon-based special synthetic paper.