公开(公告)号：US20240384055A1

公开(公告)日：2024-11-21

申请号：US18035093

申请日：2022-01-19

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Dongshuai HOU ,  Cong WU ,  Bing YIN ,  Shaochun LI ,  Xinpeng WANG ,  Pan WANG

IPC: C08K3/04 ,  C08F2/22 ,  C08F220/18

Abstract: The present disclosure relates to the technical field of protective coatings, and provides a graphene oxide (GO)-modified styrene-acrylic Pickering emulsion and a composite emulsion, and preparation methods and use. In the present disclosure, GO is added during polymerization of a styrene-acrylic monomer, and the GO is attached to an interface of a styrene-acrylic core while forming the styrene-acrylic core; and the GO is “stitched” at the interface of the styrene-acrylic core by a silane coupling agent, thus giving the GO a better dispersion effect. After adding a shell phase emulsion, a part of the styrene-acrylic core that is not completely wrapped by a GO sheet may be grafted with a shell phase, and cross-linking between a core phase and the shell phase can further enhance a steric stability of the GO; and the GO can fully connect the styrene-acrylic core with a siloxane shell, improving the molecular configuration of a siloxane component. In the composite emulsion, GO has desirable dispersibility and is not easy to agglomerate, such that the composite emulsion has an excellent performance and can significantly improve the durability of a cement-based material.

公开(公告)号：US20240228686A1

公开(公告)日：2024-07-11

申请号：US17928012

申请日：2022-01-19

Applicant: Qingdao University of Technology

Inventor： Dongshuai HOU ,  Cong WU ,  Bing YIN ,  Shaochun LI ,  Xinpeng WANG ,  Pan WANG

IPC: C08F265/06 ,  C09D5/08 ,  C09D151/00

CPC classification number: C08F265/06 ,  C09D5/08 ,  C09D151/003

Abstract: The present disclosure provides a styrene acrylate-siloxane composite emulsion with a core-shell structure, and a preparation method and use thereof, and relates to the technical field of protective coatings. In the present disclosure, a core emulsion is prepared through two-step emulsification with styrene, an acrylate monomer, a first emulsifying agent, a first initiator, a second initiator, an alkaline reagent, and water as raw materials; then a shell emulsion is prepared with a siloxane monomer, a hydroxyl-containing acrylate monomer, an emulsifying agent, and water as raw materials; and then the core emulsion, the shell emulsion, and an initiator are subjected to a grafting reaction to obtain the styrene acrylate-siloxane composite emulsion with a core-shell structure.

公开(公告)号：US20250018361A1

公开(公告)日：2025-01-16

申请号：US18275297

申请日：2022-11-18

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Shaochun LI ,  Xu CHEN ,  Mengjun HU ,  Yongjuan GENG ,  Zuquan JIN ,  Song GAO ,  Dongshuai HOU

IPC: B01J20/06 ,  B01D53/62 ,  B01J20/28 ,  B01J20/30 ,  C04B41/00 ,  C04B41/45 ,  C04B41/48 ,  C04B41/63

Abstract: Provided are a titanium sol carbon sequestration additive and a preparation method and use thereof, and a method for carbon sequestration of a cement-based material. The method for preparing the titanium sol carbon sequestration additive includes: mixing titanium tetraisopropanolate with an ammonia aqueous solution to obtain a first mixture, subjecting the first mixture to hydrolysis to obtain a hydrolysis solution, and drying the hydrolysis solution to obtain a titanium dioxide powder; mixing the titanium dioxide powder with sodium polyacrylate and a methyldiethanolamine (MDEA) aqueous solution to obtain a second mixture, and subjecting the second mixture to amination to obtain a solution A; mixing water with ethanol to obtain a solution B; and mixing the solution A and the solution B with a catalyst to obtain a mixed solution, and subjecting the mixed solution to solation to obtain the titanium sol carbon sequestration additive.

公开(公告)号：US20220010094A1

公开(公告)日：2022-01-13

申请号：US17369129

申请日：2021-07-07

Applicant: Qingdao University of Technology

Inventor： Zuquan JIN ,  Shaochun LI ,  Yongjuan GENG ,  Dongshuai HOU ,  Anjie ZHOU ,  Jun LIU

IPC: C08K3/28 ,  C08K5/5419 ,  C08K5/41 ,  C08K3/38 ,  C04B26/04

Abstract: A nano-silver dispersion and a preparation method thereof is disclosed. The method, includes: mixing γ-aminopropyltriethoxysilane, polyvinylpyrrolidone, sodium lauryl sulfate, silver nitrate and water, and conducting a chelation, to obtain a chelating dispersion, wherein before the mixing, the γ-aminopropyltriethoxysilane is exposed to the air for less than 5 min; and dropwise adding a sodium borohydride solution into the chelating dispersion, to obtain a mixture, and subjecting the mixture to an oxidation-reduction reaction, to obtain the nano-silver dispersion.

公开(公告)号：US20220396705A1

公开(公告)日：2022-12-15

申请号：US16979467

申请日：2020-03-05

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Shaochun LI ,  Dongshuai HOU ,  Yongjuan GENG ,  Wenjuan ZHANG ,  Zuquan JIN ,  Yaguang ZHU ,  Youlai ZHANG

IPC: C09D7/61 ,  C09D5/08 ,  C09D7/65 ,  C09D183/06

Abstract: The present invention provides a graphene oxide-tetraethyl orthosilicate (TEOS)/silane composite gel material, and a preparation method and use thereof, and belongs to the technical field of building surface coating. The graphene oxide-TEOS/silane composite gel material provided by the present invention includes the following components: 5-45 parts by weight of graphene oxide dispersion, 30-90 parts by weight of TEOS, 30-80 parts by weight of silane, 1-5 parts by weight of emulsifier, and 1-5 parts by weight of dispersant; the graphene oxide dispersion has a concentration of 0.5-5%. The graphene oxide-TEOS/silane composite gel material provided by the invention can form a hydrophobic anticorrosive coating after coating the surface of a cement-based material, and has excellent water resistance and corrosion resistance.

公开(公告)号：US20210323879A1

公开(公告)日：2021-10-21

申请号：US17268290

申请日：2020-04-30

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Jianlin LUO ,  Qiuyi LI ,  Chao LIU ,  Shaochun LI ,  Song GAO ,  Xueqing ZHU

IPC: C04B38/10 ,  E04C2/04 ,  E04C2/288 ,  E04B2/00 ,  C04B28/04 ,  C04B41/64 ,  C04B41/00

Abstract: A nano-modified material for cavity wall with insulation for prefabricated building, preparation method and application thereof, belonging to the technical field of building materials. The material includes splicing structures and a nano-modified silane waterproof coating, wherein the splicing structure includes a recycled concrete structure layer and a nano-modified foam concrete thermal insulation core layer, the recycled concrete structure layer is a hollow cuboid structure with openings at both ends, the nano-modified foam concrete thermal insulation core layer is a structure formed by casting inside the recycled concrete structure layer, and the nano-modified silane waterproof coating is applied at a butt joint of two of the splicing structures.