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A graphene masterbatch with micro-foaming dispersion function and preparation method thereof

A graphene and micro-foaming technology, which is applied in the application field of graphene composite materials, can solve the problems of complex process and easy agglomeration, and achieve the effect of simple preparation process

Active Publication Date: 2018-12-07
亚细亚新材料科技股份公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the defect that the existing graphene is dispersed in the polymer by the in-situ polymerization method and the solution mixing method, the process is complicated, and the direct blending method is used to disperse the graphene in the polymer and it is easy to agglomerate

Method used

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  • A graphene masterbatch with micro-foaming dispersion function and preparation method thereof
  • A graphene masterbatch with micro-foaming dispersion function and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Grinding and dispersing 60 parts by weight of graphene and 10 parts by weight of foaming agent sodium bicarbonate under low temperature conditions, so that graphene and foaming agent are uniformly dispersed to form a graphene-foaming agent dispersion;

[0031](2) Send the graphene-foaming agent dispersion obtained in step (1) into the spray condensing device, wherein the graphene-foaming agent dispersion is sprayed downward in the form of a spray through the high-pressure liquid nitrogen flow at the top of the spray condensing device into the spray condensing device; high-temperature melting, low-temperature condensing material stearic acid is sprayed into the spray condensing device horizontally in the form of a spray after melting in the middle of the spray condensing device to form a horizontal curtain;

[0032] (3) The graphene-foaming agent dispersion sprayed downward with the high-pressure liquid nitrogen flow encounters the horizontal curtain, and the horizont...

Embodiment 2

[0036] (1) Grinding and dispersing 65 parts by weight of graphene and 15 parts by weight of foaming agent azodicarbonamide under low temperature conditions, so that graphene and foaming agent are uniformly dispersed to form a graphene-foaming agent dispersion;

[0037] (2) Send the graphene-foaming agent dispersion obtained in step (1) into the spray condensing device, wherein the graphene-foaming agent dispersion is sprayed downward in the form of a spray through the high-pressure liquid nitrogen flow at the top of the spray condensing device into the spray condensing device; high-temperature melting, low-temperature condensing material coumarone resin is sprayed horizontally into the spray condensing device in the form of spray after melting in the middle of the spray condensing device to form a horizontal curtain;

[0038] (3) The graphene-foaming agent dispersion sprayed downward with the high-pressure liquid nitrogen flow encounters the horizontal curtain, and the horizont...

Embodiment 3

[0042] (1) Grinding and dispersing 70 parts by weight of graphene and 10 parts by weight of foaming agent sodium bicarbonate under low temperature conditions, so that graphene and foaming agent are uniformly dispersed to form a graphene-foaming agent dispersion;

[0043] (2) Send the graphene-foaming agent dispersion obtained in step (1) into the spray condensing device, wherein the graphene-foaming agent dispersion is sprayed downward in the form of a spray through the high-pressure liquid nitrogen flow at the top of the spray condensing device into the spray condensing device; high-temperature melting, low-temperature condensing material paraffin is sprayed horizontally into the spray condensing device in the form of spray after melting in the middle of the spray condensing device to form a horizontal curtain;

[0044] (3) The graphene-foaming agent dispersion sprayed downward with the high-pressure liquid nitrogen flow encounters the horizontal curtain, and the horizontal cu...

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Abstract

The invention relates to the field of graphene composite material application, specifically relates to graphene master batch and particularly relates to the graphene master batch with a micro-foaming dispersion function and a preparation method. Through attaching the graphene to a foaming agent, atomizing graphene-foaming agent dispersion, and condensing and pelleting a graphene-foaming agent system by using a material with high temperature melting and low temperature condensation properties, the graphene-foaming agent system in the obtained graphene master batch is uniformly dispersed, and stable attachment link of the graphene and the foaming agent is well kept. When the graphene master batch is used for a polymer, during high-temperature mixing, the foaming agent micro-foams and quickly evaporate and expand, and push and stretch the graphene attached to the foaming agent during the expansion, so as to uniformly disperse the graphene into the polymer. The defect that an in-situ polymerization method and a solution mixing method are adopted for dispersing the graphene into the polymer are complex in technique, and the problem that the graphene dispersed into the polymer by using a direct co-mixing method is easy to agglomerate are overcome.

Description

technical field [0001] The invention relates to the application field of graphene composite materials, in particular to a graphene masterbatch, in particular to a graphene masterbatch with micro-foaming and dispersing functions and a preparation method thereof. Background technique [0002] Graphene has good electrical conductivity, thermal conductivity and extremely high strength, and is the strongest substance known to mankind. Graphene has a wide range of applications, especially for composite materials, and can endow materials with unimaginable properties. For example, high-strength plastics, high-strength rubber, high thermal conductivity polyester, etc., have a profound impact on the upgrading of existing materials. Graphene composite materials can replace metal or FRP and be used in new energy vehicle shells and other parts. Vehicle load. Therefore, graphene has great application prospects in both enhancement and reduction. [0003] Theoretically, graphene powder,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/02C08K9/04C08K3/04C08L23/12C08L21/00
CPCC08K3/04C08K9/02C08K9/04C08K9/08C08L23/12C08L21/00
Inventor 陈庆曾军堂
Owner 亚细亚新材料科技股份公司