METHOD FOR PRODUCING FLAKE GRAPHITE-POLYMER COMPOSITE MATERIAL
申请人:Sekisui Chemical Co., Ltd.
公开号:EP2671892A1
公开(公告)日:2013-12-11
Provided is a production method which can attain exfoliating treatment of graphite and a process of grafting a polymer onto exfoliated graphite simultaneously and thus makes it possible to easily obtain an exfoliated graphite-polymer composite material in a short time. A method for producing an exfoliated graphite-polymer composite material includes a step of mixing graphite or primary exfoliated graphite, a depolymerizable monomer of which the polymer is decomposed by heating to generate radicals and also to form a monomer or an oligomer, or the polymer A of the monomer, or a polymer B which forms radicals at a temperature close to its decomposition temperature to obtain a mixture; and a heating step of putting the mixture in a non-open container to heat the mixture to a first temperature range from the ceiling temperature or higher to the onset decomposition temperature or lower, or to a temperature higher than the first temperature range.
METHOD FOR PRODUCING CARBONACEOUS MATERIAL-POLYMER COMPOSITE MATERIAL, AND CARBONACEOUS MATERIAL-POLYMER COMPOSITE MATERIAL
申请人:Sekisui Chemical Co., Ltd.
公开号:EP2784103A1
公开(公告)日:2014-10-01
Provided are a method for producing a carbonaceous material-polymer composite material in which a polymer can be easily grafted to a carbonaceous material and a carbonaceous material-polymer composite.
A method for producing a carbonaceous material-polymer composite material; the method including the steps of: preparing a mixture containing a carbonaceous material and at least one polymer A of a polymer obtained by polymerizing a cyclic disulfide compound and a polymer obtained by polymerizing a cyclic disulfide compound and a radical polymerizable functional group-containing monomer; and heating the mixture at a temperature range of (D-75) °C or higher and a decomposition termination temperature or lower when a decomposition start temperature of the polymer A is defined as D°C, and a carbonaceous material-polymer composite material obtained by the production method wherein a monomer and/or a polymer derived from the polymer A is grafted to a carbonaceous material.
本发明提供了一种生产碳质材料-聚合物复合材料的方法,在该方法中,聚合物可以很容易地接枝到碳质材料和碳质材料-聚合物复合材料上。
一种生产碳质材料-聚合物复合材料的方法;该方法包括以下步骤制备含有碳质材料和至少一种聚合物 A 的混合物,其中一种聚合物 A 是通过聚合环状二硫 化合物而得到的聚合物,另一种聚合物是通过聚合环状二硫化合 物和含自由基可聚合官能团单体而得到的聚合物;当聚合物A的分解开始温度定义为D℃时,在(D-75)℃或更高和分解终止温度或更低的温度范围内加热混合物,以及通过该生产方法获得的碳质材料-聚合物复合材料,其中聚合物A衍生的单体和/或聚合物接枝到碳质材料上。
FLAKED GRAPHITE RESIN COMPOSITE MATERIAL AND METHOD FOR PRODUCING SAME
申请人:Sekisui Chemical Co., Ltd.
公开号:EP2889334A1
公开(公告)日:2015-07-01
There is provided an exfoliated graphite-resin composite material that has high dispersibility in resins and the like and is easily handled. An exfoliated graphite-resin composite material in which exfoliated graphite and a resin form a composite. When an amount of methylene blue adsorbed per g of the exfoliated graphite-resin composite material (µmol/g) is y, the amount of methylene blue adsorbed as measured based on a difference between an absorbance of a methanol solution of methylene blue at a concentration of 10 mg/L and an absorbance of a supernatant liquid obtained by introducing the exfoliated graphite-resin composite material into the methanol solution of methylene blue and performing centrifugation, and a BET specific surface area (m2/g) of the exfoliated graphite-resin composite material is x, a ratio y/x is 0.15 or more, and the BET specific surface area is 25 m2/g or more.
There is provided a composite material having excellent adhesion between a resin and a graphene-like carbon material and a method for producing the same. A composite material comprising a substrate comprising a resin, and a graphene-like carbon material layer provided so as to cover at least part of a surface of the substrate, wherein the graphene-like carbon material layer is composed of a graphene-like carbon material obtained by pyrolyzing a polymer in a composition in which the polymer is fixed to graphite or primary exfoliated graphite.
Exfoliated graphite-resin composite material and method for producing the same
申请人:SEKISUI CHEMICAL CO., LTD.
公开号:US10113047B2
公开(公告)日:2018-10-30
There is provided an exfoliated graphite-resin composite material that has high dispersibility in resins and the like and is easily handled. An exfoliated graphite-resin composite material in which exfoliated graphite and a resin form a composite. When an amount of methylene blue adsorbed per g of the exfoliated graphite-resin composite material (μmol/g) is y, the amount of methylene blue adsorbed as measured based on a difference between an absorbance of a methanol solution of methylene blue at a concentration of 10 mg/L and an absorbance of a supernatant liquid obtained by introducing the exfoliated graphite-resin composite material into the methanol solution of methylene blue and performing centrifugation, and a BET specific surface area (m2/g) of the exfoliated graphite-resin composite material is x, a ratio y/x is 0.15 or more, and the BET specific surface area is 25 m2/g or more.