摘要:
PROBLEM TO BE SOLVED: To provide a production method of a dispersion liquid of hollow particles, by which a dispersion liquid of hollow silica can be produced while suppressing aggregation in the liquid.SOLUTION: The production method of a dispersion liquid of hollow particles includes steps of: producing core particles essentially comprising an organic compound by polymerizing monomers in an aqueous medium; producing core/shell particles in the aqueous medium by forming a shell having a thickness of 2 nm or more and 10 nm or less on the surface of the core particle; and obtaining a dispersion liquid of hollow particles composed of the shells by subjecting the core/shell particles to a hydrophobicizing treatment and extracting the particles with an aromatic organic solvent.
摘要:
The invention relates to a method of producing an aqueous dispersion comprising mixing at least one silane compound and colloidal silica particles to form silanized colloidal silica particles, mixing said silanized colloidal silica particles with an organic binder to form the dispersion. The invention also relates to a dispersion obtainable by the method, and the use thereof.
摘要:
Silicas modified with groups of the general formula (I) RaSiR1bOc— (I) where at least one of R or R1 is a >C3 hydrocarbon radical are useful in preparing stable dispersions of basic substances, the silica permitting a decrease in the shear viscosity h for a storage time of 1 week at room temperature (25° C.) to not more than 50% of the initial viscosity value, the viscosity being measured by means of cone/plate geometry with a shearing gap of 105 μm and a shear rate of 0.5 s−1 at 25° C.
摘要:
PROBLEM TO BE SOLVED: To provide an electrophoretic particle that can exhibit both excellent dispersion capability and movement capability in an electrophoretic dispersion liquid, provide a method of producing an electrophoretic particle that can manufacture the electrophoretic particle that can exhibit the capabilities, and provide an electrophoretic dispersion liquid, an electrophoretic sheet, an electrophoretic apparatus and an electronic apparatus which are obtained by using the electrophoretic particle and have high credibility.SOLUTION: An electrophoretic particle 1 includes a base particle 2, and a coating layer 3 covering at least part of the base particle 2, and the coating layer 3 includes a polymer 33 and a silane coupling agent 34 having a nonionic electrostatic group coupled to the surface of the base particle 2. The polymer 33 includes a silane coupling agent 31 having a polymerization group coupled to the surface of the base particle 2, and a polymerization part 32 made by the polymerization of a monomer with the polymerization group as a starting point.