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Preparation method of carbon nano/liquid resin masterbatch

A technology of liquid resin and nano-carbon, which is applied in the field of preparation of nano-carbon/liquid resin masterbatch, can solve the problems of difficult dispersion of nano-carbon resin, and achieve the effect of low equipment requirements.

Active Publication Date: 2016-05-11
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of preparation method of nano carbon / liquid resin masterbatch, solve the problems such as the microcosmic agglomeration of nano carbon in liquid resin and be difficult to effectively disperse in resin in the prior art, realize in liquid resin High-quality graphene, carbon nanotubes and carbon nanofibers for efficient dispersion at high concentrations

Method used

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  • Preparation method of carbon nano/liquid resin masterbatch
  • Preparation method of carbon nano/liquid resin masterbatch
  • Preparation method of carbon nano/liquid resin masterbatch

Examples

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Effect test

Embodiment 1

[0034] Add 5g of graphene powder prepared by the intercalation exfoliation method into 200g of methanol, and ultrasonically disperse for 10 minutes to obtain a transiently dispersed graphene / alcohol suspension; mix the above suspension with 50g of epoxy resin E-44 After mixing, stir mechanically for 1 hour, and the stirring speed is 200 rpm; after stirring, let stand for 10 minutes to make the above mixed liquid layered (attached figure 1); Pour out the gray-white solution in the upper layer, leaving the black viscous slurry in the lower layer, put it in a vacuum oven and heat it to 60°C, keep the vacuum in the oven lower than 100Pa; take it out after drying for 5 hours to get graphite A graphene / epoxy resin composite masterbatch with an alkene content of about 10 wt%.

[0035] It is 0.01wt% that above-mentioned composite masterbatch is diluted to graphene concentration with epoxy resin, this moment resin is translucent state, can visually observe the dispersion state of graph...

Embodiment 2

[0039] Add 50g of graphene powder prepared by intercalation exfoliation method into 2kg of ethanol, and disperse at high speed for 10 minutes to obtain a transiently dispersed graphene / alcohol suspension; mix the above suspension with 1kg of epoxy resin E -51 After mixing, mechanically stir for 3 hours, and the stirring speed is 100 rpm; after the stirring is completed, let it stand for 10 minutes, so that the above mixed liquid is layered; pour out the gray-white solution in the upper layer, and leave the black viscous slurry in the lower layer, Put it into a vacuum oven and heat it to 60°C under vacuum, keep the vacuum in the oven lower than 100Pa; take it out after drying for 5 hours to obtain a graphene / epoxy resin composite masterbatch with a graphene content of about 5wt%. Its appearance and use effect are similar to Example 1.

Embodiment 3

[0041] Add the single-walled carbon nanotube powder prepared by 100g of floating catalyst chemical vapor deposition (FCCVD) into 2kg of ethanol, and disperse at high speed for 10 minutes to obtain a transiently dispersed carbon nanotube / alcohol suspension; Mix the above suspension with 1 kg of alkyd resin and then mechanically stir for 3 hours at a stirring speed of 100 rpm; after stirring, let it stand for 10 minutes to separate the above mixed liquid; pour out the gray-white solution on the upper layer and leave the lower layer Put the black viscous slurry into a vacuum oven and heat it to 60°C, keep the vacuum in the oven lower than 100Pa; take it out after drying for 5 hours to get a carbon nanotube / alkyd with a carbon nanotube content of about 10wt% Resin composite masterbatch. Its appearance and use effect are similar to Example 1.

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Abstract

The invention relates to the field of composite materials, in particular to a preparation method of a carbon nano / liquid resin masterbatch. As an efficient rapid dispersion method of grapheme, a carbon nano tube, carbon nano fibers and other carbon nano materials in epoxy resin, amino resin, alkyd resin, vinyl resin, polyurethane resin, acrylic resin and other liquid resin prepolymers, the preparation method solves the problems of microscopic aggregation of the carbon nano materials, difficult effective dispersion in the resins and the like. The preparation method comprises the following steps: uniformly dispersing carbon nano powder in an alcohol solvent; then mixing dispersion liquid with the resin prepolymers and stirring till a solution layers; removing the upper layer of solution and drying to obtain a stable dispersion body of nano carbon in the resin prepolymers; when the content of the carbon nano materials in the dispersion body is above 5 percent by weight, calling the carbon nano materials as the carbon nano / liquid resin masterbatch. Through the adoption of the preparation method provided by the invention, the high-concentration uniform dispersion of the grapheme, the carbon nano tube and the carbon nano fibers in high-viscosity resins can be realized, so that a high-performance carbon nano polymer-based composite material is prepared.

Description

technical field [0001] The invention relates to the field of polymer composite materials, in particular to a method for preparing a nano-carbon / liquid resin masterbatch. Background technique [0002] Carbon nanomaterials, mainly including graphene, carbon nanotubes and carbon nanofibers, are produced by sp 2 Quasi-two-dimensional and one-dimensional carbon nanocrystal materials composed of hybrid carbon atoms have excellent optical, electrical, thermal and mechanical properties. These properties allow nano-carbon materials to be added as a functional filler to polymer resin materials to form composite materials, enabling them to obtain new properties, such as: high electrical conductivity, thermal conductivity, and enhanced mechanical properties. However, this type of material also has the structural characteristics of large specific surface area and large aspect ratio (diameter / thickness ratio), and because of its nanoscale, it will spontaneously agglomerate in a free stat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L61/20C08L23/04C08L67/08C08L75/04C08L33/00C08K13/06C08K9/04C08K3/04C08K7/24C08K7/06
Inventor 裴嵩峰黄坤任文才成会明
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI