公开(公告)号：US20250001388A1

公开(公告)日：2025-01-02

申请号：US18827839

申请日：2024-09-08

Applicant: Qingdao University of Science and Technology

Inventor： Zhibo Li ,  Yuetao Liu ,  Na Zhao

IPC: B01J19/20 ,  B01J19/00 ,  B01J19/06 ,  C08G77/08

Abstract: This disclosure belongs to the field of organic silicon polymer material preparation, particularly relating to a continuous production device for organophosphorus nitrile-catalyzed high-molecular-weight polysiloxane. It includes a reaction device with a horizontal configuration and dual-axis stirring, where the diameters of the dual axes decrease gradually from the feed port to the discharge outlet, and the corresponding nominal diameters of the paddles increase gradually from the feed port to the discharge outlet. The stirring shaft and paddles are hollow and can be externally heated or cooled. The dual-axis engagement provides mass transfer, heat transfer, and axial propelling force. This reaction device exhibits excellent mass transfer and heat transfer effects, resulting in uniform products with narrow molecular weight distribution and low volatile content. It is particularly suitable for the continuous production of high-viscosity, high-molecular-weight polysiloxanes catalyzed by organophosphorus nitrile. This production device can be adapted to various traditional chemical reaction equipment.

公开(公告)号：US20240424586A1

公开(公告)日：2024-12-26

申请号：US17907428

申请日：2022-01-19

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY ,  NORTHWESTERN POLYTECHNICAL UNIVERSITY

Inventor： Pengfei GUO ,  Lin WU ,  Jiachang WANG ,  Yansong LIU ,  Xin LIN ,  Hongbo LAN

IPC: B23H3/08 ,  B33Y40/20

Abstract: Disclosed are a method for improving a surface quality of an alloy micro-area via a supersaturated film and use thereof. The method includes: adding nickel chloride to a sodium chloride-ethylene glycol electrolyte until the electrolyte is saturated, and conducting electrochemical machining.

公开(公告)号：US20240415926A1

公开(公告)日：2024-12-19

申请号：US18611711

申请日：2024-03-21

Applicant: Qingdao University

Inventor： Zhenxia Sha ,  Wenwen Wang ,  Zhujun Li ,  Xinbao Liu ,  Hongning Liu ,  Sen Han ,  Zhendong Wu ,  Jie Ma ,  Suxu Tan

IPC: A61K38/17 ,  A61P31/04 ,  C12N15/63

Abstract: The present invention belongs to the field of molecular biology technology, and specifically relates to the use thereof of the disease resistance gene PPARalpha and its encoded protein in half-smooth tongue sole (Cynoglossus semilaevis). The present invention provides the application of PPARalpha gene and protein in making products for preventing and treating fish bacterial diseases. The overexpression of PPARalpha gene significantly improves the anti-infection ability of half-smooth tongue sole, reduces the mortality after bacterial infection. In addition, it improves the oxidative stress level of fish and the ability to metabolize toxic substances, regulates apoptosis and energy metabolism pathways in the immune process. Therefore, the products containing PPARalpha gene can be used to prevent and treat bacterial diseases in fish and reduce economic losses caused by pathogenic bacterial infections in aquaculture.

公开(公告)号：US20240391057A1

公开(公告)日：2024-11-28

申请号：US18271393

申请日：2022-12-21

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY ,  HANERGY (QINGDAO) LUBRICATION TECHNOLOGY CO., LTD.

Inventor： Yanbin ZHANG ,  Wenyi LI ,  Xin CUI ,  Changhe LI ,  Zongming ZHOU ,  Shuaiqiang XU ,  Bo LIU ,  Yun CHEN

IPC: B24B55/03 ,  B24B49/12 ,  B24B55/04

Abstract: A device for supplying and recovering a minimal quantity lubricant in a magnetic field-assisted abrasive grinding, including a grinding wheel guard assembly, including a grinding wheel guard, grinding wheel, and wind deflector; a magnetic worktable mounted on the guard, and a magnetic clamp on the worktable; a controllable magnetic field assembly, including a permanent magnet and a first guide rail mechanism mounted on the deflector, the magnet being connected to the mechanism and to a recovering and filtering device; a controllable nozzle assembly, connected to the deflector on an opposite side of the magnetic field assembly, including a nozzle connected to a linear motion mechanism; and a controlling and monitoring assembly, including a vision camera on the worktable, connected to a system control box. The magnetic nanofluid can exert the optimal lubricating properties and cooling performance under the magnetic field-assisted abrasive grinding, and the magnetic nanoparticles can be further recycled.

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：US20240336719A1

公开(公告)日：2024-10-10

申请号：US18461953

申请日：2023-09-06

Applicant: Qingdao University of Science & Technology

Inventor： Jinchun LIU ,  Dongxu ZHAO ,  Li LIU ,  Xuemeng WANG

IPC: C08G18/42 ,  C08G18/22 ,  C08G18/24 ,  C08K3/06 ,  C08K3/20

CPC classification number: C08G18/4238 ,  C08G18/222 ,  C08G18/227 ,  C08G18/246 ,  C08K3/06 ,  C08K3/20

Abstract: A millable polyurethane rubber, preparation method and use thereof. Raw materials thereof comprise the following ingredients in part by weight: polyester diol 100 parts; micromolecular diol 2-10 parts; diisocyanate 5-20 parts; antioxidant 0.1-0.5 part; catalyst 0.03-0.08 part; peroxide 1-1.5 parts and/or sulfur 1-1.5 parts. By structural design and formula adjustment, the millable polyurethane rubber has better low temperature resistance and gas permeability compared with conventional millable polyurethane rubbers, by using special micromolecular diol, synthesizing with polyester diol at a specific ratio and vulcanizing with peroxide or sulfur, molecular strands of the polyurethane have excellent smoothness and strong interaction forces, the millable polyurethane rubber has at the same time characteristics such as time good low temperature compression set, low gas permeability and high mechanical strength and can be used in manufacturing of films in scuba suspension systems.

公开(公告)号：US20240302222A1

公开(公告)日：2024-09-12

申请号：US18598989

申请日：2024-03-07

Applicant: Qingdao University of Technology

Inventor： Zhigang SHI ,  Demin LIU ,  Yandong ZHANG ,  Chao CAI ,  Chuanbin FU ,  Wenjie LIU ,  Zhichao WANG

IPC: G01K13/02 ,  G01K17/20 ,  G01N25/18

CPC classification number: G01K13/026 ,  G01K17/20 ,  G01N25/18

Abstract: A method and a system for temperature measurement of fluid in a pipe, an electronic device and a storage medium are provided, and relates to the technical field of temperature measurement in a pipe. The method includes: determining fixed parameters of an object to be measured, a flow rate of the fluid, a noise variance and an observation variance; determining a predicted temperature at a current moment according to an optimal internal pipe temperature and a flow rate of the fluid at a previous moment; determining a covariance at the current moment according to the noise variance and an optimal covariance at the previous moment; determining a weight coefficient at the current moment; and determining an optimal internal pipe temperature at the current moment, thereby expanding the application range of temperature measurement in a pipe.

公开(公告)号：US20240218133A1

公开(公告)日：2024-07-04

申请号：US18335144

申请日：2023-06-15

Applicant: Qingdao University

Inventor： Lijun Qu ,  Xili Hu ,  Hongtao Zhao

IPC: C08J5/00 ,  C08J3/22 ,  C08K3/04

CPC classification number: C08J5/005 ,  C08J3/22 ,  C08K3/042 ,  C08J2333/20 ,  C08J2367/00 ,  C08J2377/00 ,  C08K2201/003 ,  C08K2201/011

Abstract: A graphene quantum dot/polymer antibacterial and antiviral composite fiber and a preparation method therefor are provided. The graphene quantum dot/polymer antibacterial and antiviral composite fiber is prepared by melt spinning, solving problems that graphene quantum dots are easy to agglomerate and difficult to be effectively oriented. In addition, the composite fiber has excellent antibacterial and antibacterial properties, as well as good mechanical properties, environmental friendliness, a silky and smooth feel, a plump and glutinous cashmere, fluffy, good rebound, comfortable touch, and good wearing performance. Furthermore, according to different addition amounts of the graphene quantum dots, the graphene quantum dots have various colors, such as original white, light tea color or light coffee color, which breaks through an inherent color limitation of traditional graphene modified fibers in black and gray.

公开(公告)号：US11987907B2

公开(公告)日：2024-05-21

申请号：US17638208

申请日：2020-03-03

Applicant: QINGDAO UNIVERSITY

Inventor： Hui Du ,  Yajing Duan ,  Zhaojun Chen ,  Hui Fu ,  Jinzhe Fu

IPC: D01F9/22 ,  D01D5/00

CPC classification number: D01F9/22 ,  D01D5/0007 ,  D10B2101/12 ,  Y10T428/2918 ,  Y10T428/298

Abstract: A molybdenum disulfide/graphene/carbon composite material having a hierarchical pore structure includes a composite nanofiber having a diameter of 60 to 500 nm. The composite nanofiber comprises, in mass percentage, 3% to 35% of molybdenum disulfide, 0.2% to 10% of graphene, and 60% to 95% of carbon. The composite nanofiber has a hierarchical pore structure distributed along the axial direction, and has a pore diameter continuously distributed between 0.1 nm and 5 μm and an average pore diameter between 1.5 nm and 25 nm. On the basis of the pore volume, in the hierarchical pore structure, a micropore structure accounts for 25% to 60%, and a mesoporous structure accounts for 40% to 75%. The microporous structure is distributed on the surface of the nanofiber and the pore wall of the mesoporous structure.

公开(公告)号：US11987660B2

公开(公告)日：2024-05-21

申请号：US18080175

申请日：2022-12-13

Applicant: Qingdao University of Science & Technology

Inventor： Chunyu Zhang ,  Lihua Na ,  Qi Yang ,  Heng Liu ,  Xuequan Zhang

IPC: C08F4/70 ,  C08F4/04 ,  C08F4/602 ,  C08F36/06 ,  C08F136/06

CPC classification number: C08F4/70 ,  C08F4/04 ,  C08F4/602 ,  C08F36/06 ,  C08F136/06

Abstract: The present disclosure relates to the technical field of preparation of syndiotactic 1,2-polybutadiene (s-PB), in particular to a catalytic system and use thereof, and a preparation method of s-PB. In the present disclosure, the catalytic system includes an iron-containing organic compound, an azodicyano compound, an organoaluminum compound, and a free radical scavenger; where an iron element in the iron-containing organic compound, the azodicyano compound, the organoaluminum compound, and the free radical scavenger have a molar ratio of 1:(0.5-10):(5-100):(1-1000); and the free radical scavenger is selected from the group consisting of a sterically hindered phenol, a sterically hindered amine, and a phosphorus-containing antioxidant. The catalytic system can prepare the s-PB with a high activity at a high temperature, and the s-PB has a melting point of 60° C. to 130° C. with an extremely low gel content or even no gelation.