Unlock instant, AI-driven research and patent intelligence for your innovation.

Multifunctional graphene masterbatch for thermal conductive plastic and preparation method of multifunctional graphene masterbatch

A heat-conducting plastic and graphene technology, which is applied in the field of plastic masterbatch, can solve the problems of restricting the wide application of heat-conducting plastics, the inability to ensure uniform coating of graphene layers, and difficulty in satisfying the performance of use, so as to achieve excellent thermal conductivity, improve thermal conductivity and The effect of mechanical properties and excellent interface properties

Inactive Publication Date: 2019-01-18
CHENDU NEW KELI CHEM SCI CO LTD
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] It can be seen that in the prior art, the technology of adding graphene, glass microspheres or fibers to prepare thermally conductive plastics is used to bond graphene on the surface through molten glass microspheres or fibers, so that it can exert the interface properties of graphene and play a role. However, it is usually covered by the airflow collision method, which cannot ensure the uniform coating of the graphene layer, making it difficult for the existing thermally conductive plastics to have both high thermal conductivity and excellent mechanical properties at the same time, and it is difficult to meet the actual needs of use. performance, thus limiting the wide application of thermally conductive plastics

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multifunctional graphene masterbatch for thermal conductive plastic and preparation method of multifunctional graphene masterbatch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] a. Connect the central hole of the coaxial spinning nozzle of the electrospinning machine with the glass melting tank, place the glass raw material in the glass melting tank, and heat it for pre-melting. The pre-melting temperature is 1550°C; then move it into the same The central hole of the shaft spinning nozzle is used as the core spinning raw material;

[0033] B, graphene and aluminum powder are melted into slurry as shell spinning raw material under nitrogen protection, move into the outer hole of coaxial spinning nozzle as shell spinning raw material; Wherein, graphene 75 parts by weight, aluminum powder 25 parts by weight;

[0034]c. The core spinning raw material and the shell spinning raw material are ejected through the coaxial spinning nozzle at the same flow rate, so that the graphene in the shell spinning raw material is firmly bonded to the glass fiber in the core spinning raw material surface, and collected by a coagulation bath, treated in air at 300°C...

Embodiment 2

[0037] a. Connect the central hole of the coaxial spinning nozzle of the electrospinning machine with the glass melting tank, place the glass raw material in the glass melting tank, and heat it for pre-melting. The pre-melting temperature is 1500°C; then move it into the same The central hole of the shaft spinning nozzle is used as the core spinning raw material;

[0038] B, graphene and aluminum powder are melted into slurry as shell spinning raw material under nitrogen protection, move into the outer hole of coaxial spinning nozzle as shell spinning raw material; Wherein, graphene 70 parts by weight, aluminum powder 30 parts by weight;

[0039] c. The core spinning raw material and the shell spinning raw material are ejected through the coaxial spinning nozzle at the same flow rate, so that the graphene in the shell spinning raw material is firmly bonded to the glass fiber in the core spinning raw material surface, and collected by a coagulation bath to obtain modified glas...

Embodiment 3

[0042] a. Connect the central hole of the coaxial spinning nozzle of the electrospinning machine with the glass melting tank, place the glass raw material in the glass melting tank, and heat for pre-melting. The pre-melting temperature is 1520°C; then move it into the same The central hole of the shaft spinning nozzle is used as the core spinning raw material;

[0043] B, graphene and aluminum powder are melted into slurry as shell spinning raw material under nitrogen protection, move into the outer hole of coaxial spinning nozzle as shell spinning raw material; Wherein, graphene 73 parts by weight, aluminum powder 27 parts by weight;

[0044] c. The core spinning raw material and the shell spinning raw material are ejected through the coaxial spinning nozzle at the same flow rate, so that the graphene in the shell spinning raw material is firmly bonded to the glass fiber in the core spinning raw material surface, and collected by a coagulation bath, treated in air at 300°C f...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a multifunctional graphene masterbatch for thermal conductive plastic and a preparation method of the multifunctional graphene masterbatch. The multifunctional graphene masterbatch is prepared from the following steps: a, melting a glass raw material by heating to form a melted glass raw material as a core layer spinning raw material; b, melting graphene and aluminum powderunder the protection of nitrogen to form slurry as a shell layer spinning raw material; c, spraying the core layer spinning raw material and the shell layer spinning raw material from a coaxial spinning spray head, carrying out collection through a coagulation bath, and carrying out treatment in the air at 300 DEG C for 10 min to obtain modified glass fiber uniformly coated with graphene; and d,adding the modified glass fiber and a surfactant into carrier resin, and carrying out extrusion granulation to obtain the multifunctional thermal conductive graphene masterbatch. The method has the following beneficial effects that the surface of the glass fiber is firmly adhered and uniformly coated with graphene, so that the fiber form of a composite can be effectively retained, graphene retainsthe excellent interfacial property and can be interwound with a macromolecular chain, and the obtained thermal conductive plastic can simultaneously have excellent thermal conductivity and mechanicalproperties.

Description

technical field [0001] The invention relates to the field of plastic masterbatches, in particular to the preparation of graphene thermally conductive masterbatches, in particular to a graphene multifunctional masterbatch for thermally conductive plastics and a preparation method thereof. Background technique [0002] Traditional plastics are mostly heat insulating materials, and the thermally conductive plastics developed by CoolPoly have brought new opportunities in this field. Thermally conductive plastics are widely used in various consumer electronics, power electronics, automobiles, motorcycles, lighting, medical equipment and other appliances. CoolPoly thermally conductive plastics are based on engineering plastics and general-purpose plastics, such as PP, ABS, PC, PA, LCP, PPS, PEEK, etc. The thermal conductivity of typical thermally conductive plastics ranges from 1 to 20W / m·K, and some grades can reach 100W / m·K. This value is about 5 to 100 times that of tradition...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08L23/06C08K9/10C08K7/14C08K3/04C08K3/08C08K13/06C08K5/09C08J3/22
CPCC08J3/226C08J2323/06C08J2423/06C08K2003/0812
Inventor 陈庆昝航
Owner CHENDU NEW KELI CHEM SCI CO LTD