Graphene masterbatch

A color masterbatch, graphene technology, applied in conductive materials dispersed in non-conductive inorganic materials and other directions, can solve the problems of poor uniformity of conductive carbon materials and limited antistatic effect, and achieves improved mechanical properties, improved The effect of interfacial bond strength

Inactive Publication Date: 2015-11-04
北京烯创科技有限合伙企业(有限合伙)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the absence of lubricants and surface modification, whether it is directly added to thermoplastic or thermosetting materials, or the masterbatch is made in advance, the uniformity of the conductive carbon material is still not good, making the antistatic effect quite limited.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The following describes the implementation of the present invention in more detail with structural formulas and component symbols, so that those skilled in the art can implement it after studying this specification.

[0016] The graphene color masterbatch of the present invention mainly comprises carrier resin, conductive carbon black, a plurality of graphene nano sheets and lubricating dispersant, and accounts for 1-20wt%, 20-40wt%, 20-50wt% of the whole weight respectively And 1-15wt% can be used to combine plastic polymers for co-kneading and injection treatment, so as to form a plastic polymer matrix, that is, a composite material substrate.

[0017] The carrier resin itself is used as a color masterbatch matrix, generally including polyolefin (Polyolefin), polyester (Polyester), polycarbonate (PC), polyurethane (PU) and acrylonitrile-butadiene-styrene copolymer ( At least one of ABS) and especially the polyolefin may be selected from low density polyethylene (LDPE)...

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PUM

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Abstract

Disclosed is a graphene masterbatch including a base resin, electrically conductive carbon black, graphene nanoplatelets with modified surface and a dispersant. The modified surface of graphene nanoplatelet is formed by a modifying agent containing a coupling compound so as to possess hydrophobic and hydrophilic functional groups, which help graphene nanoplatelets form chemical bonding with carbon black and the base resin. Since the modified surface makes graphene nanoplatelets evenly dispersed in the base resin, the graphene masterbatch of the present invention is suitably melt blended with a polymer material to form a composite material such that graphene nanoplatelets are evenly dispersed in the polymer material, thereby enhancing junction strength, increasing mechanical properties, and improving anti-oxidation, acid / base resistance, and thermal conductivity.

Description

technical field [0001] The present invention relates to a kind of graphene color masterbatch, especially utilizes the graphene nano sheet with the surface modified layer to improve the compatibility with conductive carbon black and plastic polymer, and then can mix uniformly and improve the interface Bond strength. Background technique [0002] As we all know, graphene is based on sp 2 The mixed orbitals form a hexagonal honeycomb arrangement of two-dimensional crystals, with a thickness of 0.335nm and a diameter of only one carbon atom. It is currently the thinnest and hardest material in the world. It has outstanding electrical and thermal conductivity, and its mechanical strength can be much higher than that of It is a hundred times stronger than steel, but its specific gravity is only about a quarter of that of steel. Therefore, graphene is one of the best options to improve the properties of composite materials. [0003] However, graphene is very easy to aggregate and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08L23/06C08K9/06C08K7/00C08K3/04C08J3/22
CPCH01B1/24C08J3/226
Inventor 吴以舜谢承佑陈静茹谢淑玲
Owner 北京烯创科技有限合伙企业(有限合伙)
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