METHOD FOR PRODUCING A HYDROPHILIC AEROGEL GRANULE AND APPLICATION OF THE PRODUCT THEREOF

    公开(公告)号:US20210130177A1

    公开(公告)日:2021-05-06

    申请号:US16675700

    申请日:2019-11-06

    IPC分类号: C01B33/158 B01J13/00

    摘要: A method for producing a hydrophilic aerogel granule is provided, which includes the steps of: mixing for the siloxane solvent mixture preparation, hydrolysis with proper acid catalyst, condensation dispersion by introducing a proper alkali catalyst into the mixture and dispersing it with hydrophobic dispersion solvent to obtain wet gel, aging under a specific temperature, disintegration dispersion for disintegrating the wet gel and dispersing it in the dispersion solvent, high temperature solvent exchange under ambient temperature with dispersion solvent, and solvent evaporation for removing the dispersion solvent.

    LOW-K DIELECTRIC AEROGEL AND PREPARATION METHOD THEREFOR

    公开(公告)号:US20230098015A1

    公开(公告)日:2023-03-30

    申请号:US17488666

    申请日:2021-09-29

    摘要: Manufacturing a low-K dielectric organic/inorganic aerogel composite material and its application are provided. The manufacturing method comprises: (1) mixing; (2) hydrolysis; (3) condensation; (4) aging; (5) drying; (6) impregnating polymer solution; (7) phase separation and drying; and (8) cross-linking and curing. The manufacturing method can produce a low-K dielectric organic/inorganic aerogel composite material having a high strength. The low-K dielectric aerogel is in a porous structure, and its porosity is higher than 70% and its density is from 0.12 g/cm3 to 0.45 g/cm3. The dielectric property of the low-K dielectric aerogel decreases along with an increase of its porosity, wherein a dielectric constant thereof is from 1.28 to 1.89, and a dielectric loss thereof is from 0.052 to 0.023. The low-k dielectric aerogel can be used for a dielectric layer in a high-frequency circuit, an insulation layer in a semiconductor device or a microwave circuit in a communication integrated circuit.

    METHOD FOR PRODUCING A HEAT INSULATING MATERIAL COMPOSED OF A HYDROPHOBIC AEROGEL AND THE APPLICATION THEREOF

    公开(公告)号:US20210332586A1

    公开(公告)日:2021-10-28

    申请号:US16860619

    申请日:2020-04-28

    IPC分类号: E04B1/78 B01J13/00

    摘要: The invention provides a method for producing a heat insulating material composed of a hydrophobic aerogel, and the method includes the steps of: (1) mixing step; (2) hydrolysis step; (3) condensation step; (4) aging step; and (5) drying step. In the method, a siloxane compound, an inorganic gel, and a halogen-free surfactant are mixed and then a sol-gel process is performed to produce the aerogel heat-insulating material without water-washing. The produced heat-insulating material has preferable strength, smooth appearance, and low shrinkage and can overcome the powder-dropping problem. By the provided method, an aerogel heat-insulating board can be produced, or an aerogel cold-resisting and heat-insulating blanket can be produced by mixing with a fiber or a foam material.