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Spherical titanium dioxide ceramic particle as well as preparation method and application thereof
The invention discloses a spherical titanium dioxide ceramic particle and a preparation method and application thereof, the preparation method comprises the following steps: adding anion exchange resin into nano hydrated titanium dioxide, stirring, filtering and separating the resin, adding nano hydrated titanium dioxide turbid liquid into oil phase liquid, stirring, filtering and separating the resin, adding the nano hydrated titanium dioxide turbid liquid into the oil phase liquid, and filtering and drying to obtain the spherical titanium dioxide ceramic particle. The oil-phase liquid is an organic matter which has a boiling point higher than 100 DEG C and is not mutually soluble with water, adding an emulsifier into the oil-phase liquid, stirring and dispersing to obtain an emulsion, heating to raise the temperature, fully decompressing and evaporating moisture in the suspension, filtering, washing a filter cake by using an organic solvent to remove the oil-phase liquid, and drying to obtain a spherical hydrated titanium dioxide blank; and calcining and grinding the spherical hydrated titanium dioxide blank to obtain the spherical titanium dioxide ceramic particles. The method is low in cost, energy-saving, environment-friendly, simple in production process and capable of realizing large-scale mass production. The prepared micron-sized titanium dioxide particles are high in purity, uniform and controllable in particle size, high in sphericity and small in specific surface, and dielectric loss caused by poor interface bonding can be effectively avoided.
本发明公开了一种球形二氧化钛陶瓷颗粒及其制备方法和应用，该制备方法包括：将阴离子交换树脂加入至纳米水合二氧化钛中，搅拌、过滤分离树脂，将纳米水合二氧化钛悬浊液加入到油相液中，油相液为沸点高于100℃且与水不发生互溶的有机物，在油相液中加入乳化剂，搅拌分散获得乳浊液，加热升温，使悬浊液中的水分充分减压蒸发后过滤，滤饼使用有机溶剂冲洗除去油相液，烘干后得到球状水合二氧化钛胚体；将球状水合二氧化钛胚体煅烧、研磨，得到球形二氧化钛陶瓷颗粒。本发明成本低廉，节能环保，生产工艺简单，可实现大规模量产。制备的微米级二氧化钛颗粒纯度高、粒径均一可控、球形度高，比表面小，可有效避免界面结合不佳将会导致介电损耗。
Spherical titanium dioxide ceramic particle as well as preparation method and application thereof
The invention discloses a spherical titanium dioxide ceramic particle and a preparation method and application thereof, the preparation method comprises the following steps: adding anion exchange resin into nano hydrated titanium dioxide, stirring, filtering and separating the resin, adding nano hydrated titanium dioxide turbid liquid into oil phase liquid, stirring, filtering and separating the resin, adding the nano hydrated titanium dioxide turbid liquid into the oil phase liquid, and filtering and drying to obtain the spherical titanium dioxide ceramic particle. The oil-phase liquid is an organic matter which has a boiling point higher than 100 DEG C and is not mutually soluble with water, adding an emulsifier into the oil-phase liquid, stirring and dispersing to obtain an emulsion, heating to raise the temperature, fully decompressing and evaporating moisture in the suspension, filtering, washing a filter cake by using an organic solvent to remove the oil-phase liquid, and drying to obtain a spherical hydrated titanium dioxide blank; and calcining and grinding the spherical hydrated titanium dioxide blank to obtain the spherical titanium dioxide ceramic particles. The method is low in cost, energy-saving, environment-friendly, simple in production process and capable of realizing large-scale mass production. The prepared micron-sized titanium dioxide particles are high in purity, uniform and controllable in particle size, high in sphericity and small in specific surface, and dielectric loss caused by poor interface bonding can be effectively avoided.
本发明公开了一种球形二氧化钛陶瓷颗粒及其制备方法和应用，该制备方法包括：将阴离子交换树脂加入至纳米水合二氧化钛中，搅拌、过滤分离树脂，将纳米水合二氧化钛悬浊液加入到油相液中，油相液为沸点高于100℃且与水不发生互溶的有机物，在油相液中加入乳化剂，搅拌分散获得乳浊液，加热升温，使悬浊液中的水分充分减压蒸发后过滤，滤饼使用有机溶剂冲洗除去油相液，烘干后得到球状水合二氧化钛胚体；将球状水合二氧化钛胚体煅烧、研磨，得到球形二氧化钛陶瓷颗粒。本发明成本低廉，节能环保，生产工艺简单，可实现大规模量产。制备的微米级二氧化钛颗粒纯度高、粒径均一可控、球形度高，比表面小，可有效避免界面结合不佳将会导致介电损耗。
Spherical titanium dioxide ceramic particle as well as preparation method and application thereof
一种球形二氧化钛陶瓷颗粒及其制备方法和应用
JIANG LEI (author) / ZHU XIANRONG (author) / YANG WEIWEI (author) / PAN QIAOZHEN (author)
2024-03-01
Patent
Electronic Resource
Chinese
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