US9837180B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9837180-B2 |
| Application number | US-201213724542-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 21, 2012 |
| Priority date | Feb 13, 2012 |
| Publication date | Dec 5, 2017 |
| Grant date | Dec 5, 2017 |
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Disclosed are a carbon nanomaterial pellet and a method for preparing same. More particularly, it relates to a carbon nanomaterial pellet having a specific size and a high apparent density prepared by a simple process using only a rotary tablet press without mixing a carbon nanomaterial powder with a solvent or an additive, which is capable of solving the powder dust problem occurring when preparing a polymer composite from a carbon nanomaterial in the form of powder, thus improving physical properties and remarkably reducing cost of packaging and transportation, and a method for preparing the carbon nanomaterial pellet from a carbon nanomaterial powder.
Opening claim text (preview).
What is claimed is: 1. A carbon nanomaterial/polymer composite comprising: a carbon nanomaterial not including a solvent or an additive; and one or more polymer selected from a group consisting of polycarbonate, polyethylene terephthalate, amorphous polyethylene terephthalate, glycol-modified polyethylene terephthalate, cyclohexane-modified polyethylene terephthalate, polybutylene terephthalate, polyphenylene oxide, modified polyphenylene oxide, polyphenylene ether, polyether ketone, polyether ketone ketone, polyethylene, polypropylene, polyacryl, polymethyl methacrylate, polysulfone, polyphenylene sulfide, polyethersulfone, sulfonated polybutylene terephthalate, polyetherimide, polyamide, polyamideimide, polyetheramide, polyacetal, acrylonitrile-butadiene- styrene, polystyrene, polyvinyl chloride, polyvinyl fluoride, polychlorotrifluoroethylene, polyurethane, ethylene propylene rubber, ethylene propylene diene monomer, polylactic acid, liquid crystal polymer, polycarbonate/acrylonitrile-butadiene-styrene, polycarbonate/cyclohexane-modified polyethylene terephthalate, acrylonitrile-butadiene-styrene/polyamide, polybutylene terephthalate/polyethylene terephthalate, polybutylene terephthalate/liquid crystal polymer, polysulfone/modified polyphenylene oxide, polypropylene/polyamide, and polycarbonate/polylactic acid as a thermoplastic resin, wherein the carbon nanomaterial comes from a carbon nanomaterial pellet having a diameter of 3 millimeters (mm)-5 mm, a thickness of 3 mm-5 mm and an apparent density of 0.05-0.60 g/mL, the carbon nanomaterial is one or more selected from a group consisting of carbon nanotube, carbon nanofiber, graphene and graphite nanoplate, the polymer comes from a polymer pellet having a diameter and thickness corresponding to that of the carbon nanomaterial pellet, and the size of the carbon nanomaterial pellet is the same as that of the polymer pellet to improve dispersibility of the carbon nanomaterial and the polymer. 2. The carbon nanomaterial/polymer composite according to claim 1 , wherein a carbon nanomaterial powder used to prepare the pellet has an angle of repose of 10-70°.
fibre-reinforced · CPC title
Micropellets, microgranules, microparticles · CPC title
mainly consisting of carbon-silicon compounds, carbon or silicon · CPC title
characterised by the choice of material · CPC title
Particulate matter [e.g., sphere, flake, etc.] · CPC title
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