Surface-modified silica powder and preparation method thereof

The invention provides surface-modified silica powder and a preparation method thereof, and belongs to the field of electronic packaging materials, and the preparation method comprises the following steps: by taking natural quartz sand with the purity of more than 99.7% as a raw material, sequential...

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Bibliographic Details
Main Authors LI YONGYANG, ZHU LANCHANG
Format Patent
LanguageChinese
English
Published 27.05.2022
Subjects
ADHESIVES
CHEMISTRY
DYES
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
PREPARATION OF CARBON BLACK
TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
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Summary:The invention provides surface-modified silica powder and a preparation method thereof, and belongs to the field of electronic packaging materials, and the preparation method comprises the following steps: by taking natural quartz sand with the purity of more than 99.7% as a raw material, sequentially melting, crushing, grinding and grading, and then modifying the surface of the graded silica powder through surface modification. Through micro powder grading adjustment and surface modification treatment, the dispersibility of the silica powder in a resin melt is improved, and the fluidity of the resin melt is improved. 本发明提供一种表面改性的硅微粉及其制备方法，属于电子封装材料领域，其制备方法是以纯度大于99.7％的天然石英砂作为原料，依次经熔融、破碎、粉磨和级配后，再通过表面改性对所述级配硅微粉表面进行改性，本发明在现有技术的基础上，通过微粉级配调节，同时通过表面改性处理，提高硅微粉在树脂熔体中的分散性，提高树脂熔体流动性。
Bibliography:Application Number: CN202210132472