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公开(公告)号：US20210009855A1
公开(公告)日：2021-01-14
申请号：US16608633
申请日：2019-06-04
Applicant: Qingdao University of Technology
Inventor： Shaochun Li , Dongshuai Hou , Yongjuan Geng , Wenjuan Zhang , Zuquan Jin , Yaguang Zhu , Youlai Zhang
IPC: C09D183/04 , C09D5/10 , C09D7/62 , C08K9/06 , C08K3/22
Abstract: The present invention relates to the field of building surface coating technologies, and in particular, to an alumina sol-silane composite material and a preparation method and application thereof. The alumina sol-silane composite material provided in the present invention is prepared by raw materials including the following components by weight parts: 5 to 45 parts of alumina sol, 30 to 90 parts of silane, 3 to 10 parts of silane coupling agent, and 1 to 5 parts of dispersant. A hydrophobic anticorrosive coating can be formed after coating the alumina sol-silane composite material provided in the present invention to a surface of a cement-based material, and has good waterproof performance and corrosion resistance.
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Patent Agency Ranking
公开(公告)号：US20240254047A1
公开(公告)日：2024-08-01
申请号：US18004560
申请日：2021-07-27
Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY
Inventor： Shaochun Li , Shilin Xu , Ang Liu , Yongjuan Geng , Dongshuai Hou , Ruiyong Zhang , Zuquan Jin , Song Gao
IPC: C04B24/42 , C04B22/06 , C04B40/00 , C04B103/40
CPC classification number: C04B24/42 , C04B22/066 , C04B40/0046 , C04B2103/408
Abstract: Provided is the use of a silane composite emulsion as an anti-cracking enhancer in a cement-based material. In the present disclosure, active groups on an isobutyltriethoxysilane molecule react with hydroxyl groups on a surface of a mortar to form a layered hydrophobic structure, slowing down a water loss inside the mortar of a cement-based material. The dehydration of butyl acrylate forms a network structure, which fills pores of the cement-based material, inhibits shrinkage of the cement-based material, and reduces the cracking caused by the shrinkage. Tetraethoxysilane can undergo hydrolysis at a room temperature to generate nano-silica with a large number of hydroxyl groups on a surface; and the nano-silica can undergo secondary hydration with calcium hydroxide in the cement to form a secondary hydration product C—S—H gel, thereby filling most of voids to make a structure of the cement hydration product denser, to increase a strength of the mortar.
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公开(公告)号：US12030821B1
公开(公告)日：2024-07-09
申请号：US18522139
申请日：2023-11-28
Applicant: Qingdao University of Technology
Inventor： Bo Pang , Zuquan Jin , Guoqing Geng , Yunsheng Zhang , Cheng Liu , Yidong Chen , Dafu Wang , Rusheng Qian
CPC classification number: C04B41/4922 , C04B41/463 , C04B41/5035
Abstract: A concrete interface agent relates to the technical field of concrete surface protection, an ingredient of the concrete interface agent comprises 55 to 100 parts by weight of a nano-calcium salt solution and a nano-SiO2 precursor, 0.1 to 0.4 parts by weight of a surfactant, 30 to 60 parts by weight of a silane coupling agent and 10 to 40 parts by weight of a polydimethylsilane, an ingredient of the nano-calcium salt solution comprises 2 to 5 parts by weight of a calcium hydroxide, 2 to 5 parts by weight of an acid catalyst and 200 to 500 parts by weight of an alcohol-based organic solvent, which can form a coating layer with higher hydrophobic angle on the concrete surface, reduce the water absorption of the concrete, and is not easy to crack after drying, which has more protective effect and longer service life than the existing TEOS interface agent.
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14.发明授权公开(公告)号：US11879069B2
公开(公告)日：2024-01-23
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 , C09D7/65 , C09D5/08 , C09D183/06
CPC classification number: C09D7/61 , C09D5/084 , 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.
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公开(公告)号：US11802092B2
公开(公告)日：2023-10-31
申请号：US18069915
申请日：2022-12-21
Inventor： Bo Pang , Zuquan Jin , Yunsheng Zhang , Yong Yu , Xiaoying Zhang , Chuansheng Xiong , Ning Li , Xiaoyun Song , Mengyuan Li
CPC classification number: C04B41/5011 , C04B41/4961
Abstract: A concrete curing agent, a curing coating layer and a preparation method thereof, the concrete curing agent comprises a hardening agent and a hydrophobic agent, the raw materials of the hardening agent comprises the following raw materials in parts by weight: 0.1-10 parts of fluorosilicate salt and 100 parts of water, and the hydrophobic agent comprises the following raw materials in parts by weight: 0.1-10 parts of a base catalyst, 1-10 parts of a silane coupling agent, 0.1-10 parts of hydrogen-containing silicone oil, 5-10 parts of a cross-linking agent, 10-100 parts of silica sol and 100-1000 parts of water. The present invention can significantly improve the strength, hardness and hydrophobicity, impermeability and freeze-thaw resistance of surface of concrete before and after hardening, and effectively improves the service life of concrete structures.
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16.发明申请公开(公告)号：US20210198497A1
公开(公告)日：2021-07-01
申请号：US16850141
申请日：2020-04-16
Applicant: Qingdao University of Technology
Inventor： Yongjuan Geng , Shaochun Li , Dongshuai Hou , Zuquan Jin , Xu Chen , Qilong Xiao , Weifeng Zhang , Dongyi Lei , Jing Gao
Abstract: A superhydrophobic coating is provided and contains organosilane, an inorganic nanomaterial, and an emulsifying agent. A mass proportion of the components is controlled, so that the superhydrophobic coating can form a micro-nano mixed microstructure inside foam concrete. The organosilane first forms dense hydrophobic surface layers on the surface and in inner pores of the foam concrete, and the nanomaterial forms uniformly distributed nano-bulges on the hydrophobic surface layers formed by the silane. The superhydrophobic performance of the foam concrete can be effectively improved by combining the two microstructures. The foam concrete exhibits excellent superhydrophobic performance.
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