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

High-thermal-conductivity PP (polypropylene)-based composite material and preparation method thereof

A polypropylene-based and composite material technology, applied in the field of high thermal conductivity polypropylene-based composite materials and their preparation, can solve the problems of limitation, large addition of thermally conductive fillers, poor mechanical properties of composite materials, etc., and achieve the effect of good thermal conductivity.

Active Publication Date: 2015-04-22
GUANGDONG HIGH & NEW ENG PLASTICS
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polypropylene has good mechanical properties and thermal stability, but also has good electrical properties, heat resistance and corrosion resistance, and is widely used in electronic communications, lighting fixtures, automobiles, electric tools, electrical switches and other fields. But its relatively Low thermal conductivity (0.21~0.26w / mk) limits its application range in lighting and communication heat conduction and heat dissipation
[0003] At present, domestic research on thermally conductive composite materials is mainly based on filling thermally conductive fillers such as aluminum nitride, magnesium oxide, aluminum nitride, graphite, and carbon powder. However, the amount of such thermally conductive fillers is large, which makes the mechanical properties of the composite materials not good. Good, low thermal conductivity

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
  • High-thermal-conductivity PP (polypropylene)-based composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The formulation of a high thermal conductivity polypropylene-based composite material is as follows in Table 1:

[0019] Table 1: Formulation composition of high thermal conductivity polypropylene-based composites

[0020] raw material parts by mass Homopolypropylene 1102K 80 PP-g-MAH 5 Surface modified high-efficiency thermal conductivity agent 15 Antioxidant 1010 0.5 Silane coupling agent KH560 1

[0021] The surface-modified high-efficiency thermal conductivity agent described in the table is prepared in this way: fully mix the additives, high-efficiency thermal conductivity agent graphene nanosheets (model: XF067), diamond powder, and ethanol to make a slurry; among them, The additive is a mixture of ethylene bis stearamide and polyacrylate (model: BYK-356) with a mass ratio of 1:1; the additive’s mass percentage in the slurry is 1%, which is highly efficient in heat conduction The mass of both the graphene nanosh...

Embodiment 2

[0023] The formulation composition of a high thermal conductivity polypropylene-based composite material is shown in Table 2:

[0024] Table 2: Formulation composition of high thermal conductivity polypropylene-based composites

[0025]

[0026] The surface-modified high-efficiency thermal conductivity agent described in the table is prepared in this way: fully mix the additives, high-efficiency thermal conductivity agent graphene nanosheets (model: XF067), diamond powder, and ethanol to make a slurry; among them, The additive is a mixture of ethylene bis stearamide and polyacrylate (model: BYK-356) with a mass ratio of 1:1; the mass percentage of the additive in the slurry is 0.5%, which is highly efficient in heat conduction The mass of the graphene nanosheet and the diamond powder and the percentage in the slurry are 20%, and the mass ratio of the graphene nanosheet and the diamond powder of the high-efficiency thermal conductivity agent is 10:1.

Embodiment 3

[0028] The formulation of a high thermal conductivity polypropylene-based composite material is as follows in Table 3:

[0029] Table 3: Formulation composition of high thermal conductivity polypropylene-based composites

[0030] raw material parts by mass Homopolypropylene 1102K 75 PP-g-MAH 5 Surface modified high-efficiency thermal conductivity agent 20 Antioxidant 1098 0.5 Silane coupling agent KH560 1

[0031] The surface-modified high-efficiency thermal conductivity agent described in the table is prepared in this way: fully mix the additives, high-efficiency thermal conductivity agent graphene nanosheets (model: XF067), diamond powder, and ethanol to make a slurry; among them, The additive is a mixture of ethylene bis stearamide and polyacrylate (model: BYK-356) with a mass ratio of 1:1; the additive is 3% by mass in the slurry, which is highly efficient in heat conduction The mass of graphene nanosheets and diamond po...

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 high-thermal-conductivity PP-based composite material, which comprises 60% to 80% of PP, 1% to 20% of surface-modified efficient thermal conduction agents, 1% to 5% of compatilizers, 0.5% to 1% of antioxidants and 0.5% to 1% of coupling agents in percentage by weight. The preparation method of the high-thermal-conductivity PP-based composite material comprises steps of mixing materials uniformly, then placing the mixed materials in an extruder, fusing and extruding, and granulating the extruded materials. According to the high-thermal-conductivity PP-based composite material and the preparation method thereof, a product has good thermal conductivity and can be applied to cooling components of lighting and communication systems.

Description

technical field [0001] The invention relates to a high thermal conductivity polypropylene-based composite material and a preparation method thereof. Background technique [0002] Polypropylene has good mechanical properties and thermal stability, but also has good electrical properties, heat resistance and corrosion resistance, and is widely used in electronic communications, lighting fixtures, automobiles, electric tools, electrical switches and other fields. But its relatively Low thermal conductivity (0.21~0.26w / mk) limits its application range in lighting and communication heat conduction and heat dissipation. [0003] At present, domestic research on thermally conductive composite materials is mainly based on filling thermally conductive fillers such as aluminum nitride, magnesium oxide, aluminum nitride, graphite, and carbon powder. However, the amount of such thermally conductive fillers is large, which makes the mechanical properties of the composite materials not go...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/14C08L77/00C08L51/06C08K13/06C08K3/04
Inventor 曾斌
Owner GUANGDONG HIGH & NEW ENG PLASTICS