ERT/ECT dual-modality combined three-dimensional sensor

    公开(公告)号:US12292433B2

    公开(公告)日:2025-05-06

    申请号:US18030285

    申请日:2022-06-16

    Abstract: The present disclosure relates to an ERT/ECT dual-modality combined three-dimensional sensor. A cover box is sheathed with a shielding box, a plurality of small round holes are formed in the top surface and the side surfaces of the cover box, ERT electrodes are arranged in the small round holes, and ECT electrodes are arranged at the outer sides of the ERT electrodes. The ERT electrodes are connected to an ERT data acquisition box via electrode leads, and the ECT electrodes are connected to an ECT data acquisition box via the electrode leads. An integrated cuboid design in line with the concrete structure is employed. Meanwhile, the dimensions, combination modes, placement modes and positions, supporting structures, shielding devices, electrode leads and leading-out modes of two sets of electrode arrays are subjected to comprehensive optimization design to achieve three-dimensional visual nondestructive monitoring of the moisture intrusion process in the concrete structure.

    GRAPHENE OXIDE (GO)-MODIFIED STYRENE-ACRYLIC PICKERING EMULSION AND COMPOSITE EMULSION, AND PREPARATION METHODS AND USE

    公开(公告)号:US20240384055A1

    公开(公告)日:2024-11-21

    申请号:US18035093

    申请日:2022-01-19

    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.

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