SPHERICAL SILICA POWDER AND METHOD FOR PRODUCING THE SAME, AND COMPOSITE MATERIAL CONTAINING THE SAME AND METHOD FOR PRODUCING THE SAME

• Main Authors: TAKAHASHI TAKAFUMI, USHIO MASASHI, KUSUNOKI KAZUHIKO, TANAKA MUTSUTO, NUMAO RYUTARO, AOYAMA YASUHIRO, HAGIWARA YOSHIAKI
• Format: Patent
• Language: English; Japanese
• Published: 11.10.2021
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

To provide a spherical silica powder having improved affinity with resin and a method for producing the same, and a composite material of silica powder and resin having reduced viscosity.SOLUTION: A spherical silica powder has a proton magnetic resonance (1H-NMR) spectrum having peaks at chemical shifts (±0.5 ppm) of 8.6 ppm and 1.3 ppm. There is also provided a composite material of spherical silica powder and resin containing the silica powder.SELECTED DRAWING: None 【課題】樹脂との親和性が向上した球状シリカ粉体およびその製造方法、低粘度化が実現されたシリカ粉体と樹脂との複合材料を提供すること。【解決手段】プロトン核磁気共鳴（１Ｈ−ＮＭＲ）スペクトルが、８．６ｐｐｍと、１．３ｐｐｍのケミカルシフト（±０．５ｐｐｍ）にピークを有することを特徴とする、球状シリカ粉体。このシリカ粉体を含有する、球状シリカ粉体と樹脂の複合材料。【選択図】なし