公开(公告)号：US11015294B2

公开(公告)日：2021-05-25

申请号：US16009176

申请日：2018-06-14

Applicant: HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Hu Zhou ,  Dongdong Wang ,  Zhiling Qi ,  Xuan Liu ,  Zhihua Zhou ,  Qingquan Liu ,  Xiaofang Li

IPC: D21H17/67 ,  D21H17/57 ,  D21H17/07 ,  D21H19/72 ,  D21H19/62 ,  D21H25/02 ,  D21H25/06 ,  D21H19/38 ,  D21H27/00 ,  C01G23/047 ,  C08L75/06 ,  C08L75/08 ,  D21H13/20 ,  C09D175/08 ,  C09D175/06 ,  C08K3/22

Abstract: A method for preparing titanium dioxide-based synthetic paper capable of degrading organic pollutants, including: adding thermoplastic polyurethane particles and N,N-dimethylformamide or N,N-dimethylacetamide in a reactor, heating, and stirring to fully dissolve the thermoplastic polyurethane particles in a solvent to obtain a polyurethane solution; adding titanium dioxide powder having photocatalytic degradation property in the polyurethane solution, stirring uniformly to obtain a solid-liquid mixture, and standing for defoaming; uniformly coating the solid-liquid mixture onto a piece of release paper, soaking the release paper coated with the solid-liquid mixture into an aqueous solution of sliver 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, cooling, removing the release paper, and cutting the film to a proper size to obtain the titanium dioxide-based synthetic paper.

公开(公告)号：US20180291559A1

公开(公告)日：2018-10-11

申请号：US16009181

申请日：2018-06-14

Applicant: HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Hu Zhou ,  Zhiling Qi ,  Dongdong Wang ,  Zhihua Zhou ,  Xuan Liu ,  Qingquan Liu ,  Xiaohong Wang

IPC: D21H17/63 ,  D21H27/00 ,  D21H17/57 ,  D21H25/06

Abstract: The present invention discloses a method for preparing active carbon-based special synthetic paper, comprising 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 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 and the solid-liquid mixture into an aqueous solution of silver nitrate, 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. In the present invention, the adsorption of harmful substances in the environment is greatly improved.

公开(公告)号：US20180291560A1

公开(公告)日：2018-10-11

申请号：US16009176

申请日：2018-06-14

Applicant: HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Hu Zhou ,  Dongdong Wang ,  Zhiling Qi ,  Xuan Liu ,  Zhihua Zhou ,  Qingquan Liu ,  Xiaofang Li

IPC: D21H17/67 ,  D21H17/57 ,  D21H17/07 ,  D21H19/72 ,  D21H19/62 ,  D21H19/38 ,  D21H25/02 ,  D21H25/06 ,  C01G23/047 ,  C08L75/06 ,  C08L75/08

Abstract: The present invention discloses a method for preparing titanium dioxide-based synthetic paper, comprising steps of using titanium dioxide and polyurethane as main raw materials, stirring and mixing titanium dioxide powder and the prepared polyurethane solution, subsequently curing to form a film to obtain the titanium dioxide-based synthetic paper. The synthetic paper product of the present invention is of a porous structure which facilitates the adsorption of organic pollutants in the indoor air. During the production, lots of pores are formed both on the surface of the synthetic paper and inside the synthetic paper, by which the adsorption of the organic pollutants in the indoor air by the synthetic paper is improved greatly. It can effectively degrade organic pollutants under mild conditions. Inorganic filler can degrade the organic pollutants adsorbed onto the surface of the synthetic paper and inside the synthetic paper, with only nontoxic substance generated.

公开(公告)号：US10988898B2

公开(公告)日：2021-04-27

申请号：US16009181

申请日：2018-06-14

Applicant: HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Hu Zhou ,  Zhiling Qi ,  Dongdong Wang ,  Zhihua Zhou ,  Xuan Liu ,  Qingquan Liu ,  Xiaohong Wang

IPC: D21H17/63 ,  D21H27/00 ,  D21H17/57 ,  D21H25/06 ,  D21H13/50 ,  D21H21/52 ,  C08L75/06 ,  C08L75/08 ,  C08J3/21 ,  C08J5/18 ,  C08K3/04 ,  C08K7/24

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.