| 摘要 |
PROBLEM TO BE SOLVED: To provide a thermoplastic resin composition in which silica particles of small grain size are dispersed.SOLUTION: There are provided: a silica particle material 95% or more of which passes through suction filtration using filter paper of grade 5C of the JISP3801 standard after 100 mL of a fluid dispersion prepared by dispersing raw material silica of 1-100 nm in volume average particle diameter, by 10 mass% based on the total mass, in one or two or more kinds of dispersant, which has a surface treated with a silane coupling agent and organosilazane, and is heat treated below the pyrolysis temperature of the silane coupling agent and 1.5% or less in pyrolysis up to 350°C, selected from the group of isopropanol, PMG, MEK, ethyl acetate, and toluene is put in (a LABORAN (R) screw bottle No. 8) and ultrasonic waves (MUC-HS-206 manufactured by KOWA GIKEN) for five minutes; and a thermoplastic resin in which silica particle material is dispersed. |
