Patents by Inventor Baokang Dang

Baokang Dang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11597832
    Abstract: The present invention provides a biomimetic composite material, a nacreous layer-mimetic material, a biomimetic nacre material and preparation methods thereof. The biomimetic composite material comprises multiple composite film formed from biomass fibers and an inorganic nanomaterial, wherein an organic polymer material is arranged between the multiple composite film layers or in the composite base body. The invention combines a high-mechanical-performance shellfish structure with a wood fiberboard to overcome the original defects of the fiberboard, improve the fiberboard performances and endow it with new special performances, so that the prepared material has dual functions of the fiberboard and the nanomaterial at the same time.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: March 7, 2023
    Assignee: ZHEJIANG A & F UNIVERSITY
    Inventors: Qingfeng Sun, Yipeng Chen, Baokang Dang, Caicai Li, Chao Wang
  • Patent number: 11332619
    Abstract: The invention relates to a wood-based biomimetic artificial muscle and preparation method and application thereof. The biomimetic artificial muscle comprises a wood-based cellulose skeleton, and polyvinyl alcohol and at least one ionic polymer filled in the wood-based cellulose skeleton. The preparation method includes S1: slicing wood, and subjecting the obtained wood slices to ammonia treatment and delignification in sequence; S2: soaking in the solution of citric acid and/or citrate; S3: preparing water solution of an ionic polymer and DMSO water solution of polyvinyl alcohol separately, and mixing to obtain polymer solution; S4: subjecting the treated wood slices to vacuum treatment, filling the polymer solution into the container, releasing vacuum, and pressurizing to infiltrate the polymer into the wood slices until saturation; S5: freezing the wood slices in a refrigerator and thawing; and S6: repeating S5 for 5-10 times, washing the wood slices, and drying.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: May 17, 2022
    Assignee: ZHEJIANG A & F UNIVERSITY
    Inventors: Qingfeng Sun, Baokang Dang, Chao Wang, Zhe Wang, Caicai Li
  • Publication number: 20210115207
    Abstract: The present invention provides a biomimetic composite material, a nacreous layer-mimetic material, a biomimetic nacre material and preparation methods thereof. The biomimetic composite material comprises multiple composite film formed from biomass fibers and an inorganic nanomaterial, wherein an organic polymer material is arranged between the multiple composite film layers or in the composite base body. The invention combines a high-mechanical-performance shellfish structure with a wood fiberboard to overcome the original defects of the fiberboard, improve the fiberboard performances and endow it with new special performances, so that the prepared material has dual functions of the fiberboard and the nanomaterial at the same time.
    Type: Application
    Filed: June 8, 2020
    Publication date: April 22, 2021
    Inventors: Qingfeng Sun, Yipeng Chen, Baokang Dang, Caicai Li, Chao Wang
  • Publication number: 20200407561
    Abstract: The invention relates to a wood-based biomimetic artificial muscle and preparation method and application thereof. The biomimetic artificial muscle comprises a wood-based cellulose skeleton, and polyvinyl alcohol and at least one ionic polymer filled in the wood-based cellulose skeleton. The preparation method includes S1: slicing wood, and subjecting the obtained wood slices to ammonia treatment and delignification in sequence; S2: soaking in the solution of citric acid and/or citrate; S3: preparing water solution of an ionic polymer and DMSO water solution of polyvinyl alcohol separately, and mixing to obtain polymer solution; S4: subjecting the treated wood slices to vacuum treatment, filling the polymer solution into the container, releasing vacuum, and pressurizing to infiltrate the polymer into the wood slices until saturation; S5: freezing the wood slices in a refrigerator and thawing; and S6: repeating S5 for 5-10 times, washing the wood slices, and drying.
    Type: Application
    Filed: April 20, 2020
    Publication date: December 31, 2020
    Inventors: Qingfeng Sun, Baokang Dang, Chao Wang, Zhe Wang, Caicai Li