The present invention relates to a method for surface-treating inorganic particles, and inorganic particles produced thereby. The method for surface-treating inorganic particles according to the present invention involves dry-milling inorganic particles and a coupling agent to pulverize the inorganic particles and couple the coupling agent to the surfaces of the inorganic particles, and thus may prevent problems that occur in conventional wet milling processes.

The present invention relates to a method for surface-treating inorganic particles, and inorganic particles produced thereby. The method for surface-treating inorganic particles according to the present invention involves dry-milling inorganic particles and a coupling agent to pulverize the inorganic particles and couple the coupling agent to the surfaces of the inorganic particles, and thus may prevent problems that occur in conventional wet milling processes.

An organic substance-attached porous inorganic oxide particle including porous inorganic oxide particle and an organic substance attached to the surface of the porous inorganic oxide particle. The organic substance-attached porous inorganic oxide particle satisfies a formula below
(Cf−Ce)/2>1
where Cf represents the amount of carbon (atom %) measured by subjecting the surface of the particle to X-ray photoelectron spectroscopy (XPS) after the particle is washed, and Ce represents the amount of carbon (atom %) measured by subjecting the surface of the particle to X-ray photoelectron spectroscopy (XPS) after two-minute surface etching of the particle.

Provided is a fine particle production apparatus and a fine particle production method capable of easily obtaining surface treated fine particles. The fine particle production apparatus produces fine particles using feedstock by means of a gas-phase process. The apparatus includes a treatment section configured to transform the feedstock into a mixture in a gas phase state by means of the gas-phase process, a feedstock supply section configured to supply the feedstock to the treatment section, a cooling section configured to cool the mixture in a gas phase state in the treatment section using a quenching gas containing an inert gas, and a supply section configured to supply a surface treating agent to fine particle bodies in a temperature region in which the surface treating agent is not denatured, the fine particle bodies being produced by cooling the mixture in the gas phase state with the quenching gas.

Provided is a fine particle production apparatus and a fine particle production method capable of easily obtaining surface treated fine particles. The fine particle production apparatus produces fine particles using feedstock by means of a gas-phase process. The apparatus includes a treatment section configured to transform the feedstock into a mixture in a gas phase state by means of the gas-phase process, a feedstock supply section configured to supply the feedstock to the treatment section, a cooling section configured to cool the mixture in a gas phase state in the treatment section using a quenching gas containing an inert gas, and a supply section configured to supply a surface treating agent to fine particle bodies in a temperature region in which the surface treating agent is not denatured, the fine particle bodies being produced by cooling the mixture in the gas phase state with the quenching gas.

The present disclosure relates to a dispersant containing a specific compound having a fluorene skeleton, and a composition using the same.

The present disclosure relates to a dispersant containing a specific compound having a fluorene skeleton, and a composition using the same.

Proposed are an organic-inorganic composite synthetic resin using a highly flame-retardant organically modified nanoparticle, and a production method thereof. The method for producing the organic-inorganic composite synthetic resin using a highly flame-retardant organically modified nanoparticle includes the steps of: adding and stirring metal ion-based phosphinate, melamine cyanurate, and nanoclay to a container containing an aqueous or oily solvent, applying ultrasonic waves and high pressure energy to the stirred solution to prepare a highly flame-retardant organically modified silicate solution through a chemical bonding, and then adding a synthetic resin to form synthetic leather and foam used as life consumer goods to the silicate solution, processing and drying it.

Disclosed is a reinforced biodegradable polymer nanocomposite. The reinforced biodegradable polymer nanocomposite comprises a polymer matrix and functionalised graphene nanoplatelets or graphene-like material dispersed in the polymer matrix. The graphene nanoplatelets or graphene-like material are functionalized with functional groups in a manner that planar structure of the graphene nanoplatelets or graphene-like material is retained. Disclosed further is a method of manufacturing the aforementioned reinforced biodegradable polymer nanocomposite. The method comprises functionalizing graphene nanoplatelets or graphene-like material with functional groups in a manner that planar structure of the graphene nanoplatelets or graphene-like material is retained; and dispersing functionalized graphene nanoplatelets or graphene-like material in the polymer matrix to form the reinforced biodegradable polymer nanocomposite.

Disclosed is a reinforced biodegradable polymer nanocomposite. The reinforced biodegradable polymer nanocomposite comprises a polymer matrix and functionalised graphene nanoplatelets or graphene-like material dispersed in the polymer matrix. The graphene nanoplatelets or graphene-like material are functionalized with functional groups in a manner that planar structure of the graphene nanoplatelets or graphene-like material is retained. Disclosed further is a method of manufacturing the aforementioned reinforced biodegradable polymer nanocomposite. The method comprises functionalizing graphene nanoplatelets or graphene-like material with functional groups in a manner that planar structure of the graphene nanoplatelets or graphene-like material is retained; and dispersing functionalized graphene nanoplatelets or graphene-like material in the polymer matrix to form the reinforced biodegradable polymer nanocomposite.