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

A method of preparing high thermal conductivity polymer-based products using solid phase shear milling technology

A technology of solid-phase shear milling and polymer, applied in the direction of heat exchange materials, chemical instruments and methods, applications, etc., can solve the problems of limited thermal conductivity improvement, undiscussed research, limited thermal conductivity, etc., to achieve a solution Effects of agglomeration and peeling, improved compatibility, and excellent mechanical properties

Active Publication Date: 2022-03-01
成都普美怡科技有限公司 +1
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the early completion of this paper (2002), no further in-depth discussion and research on the interfacial thermal resistance between the functional filler and the polymer matrix was conducted; at the same time, the thermal conductivity of the final prepared composite material is limited, compared with Traditional direct blending preparation process, under the same ratio (the graphite content in the PP / YEP35 system is 30wt.%), the thermal conductivity of the composite material prepared by the traditional process is usually about 0.643W / mK, and its thermal conductivity is limited.

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
  • A method of preparing high thermal conductivity polymer-based products using solid phase shear milling technology
  • A method of preparing high thermal conductivity polymer-based products using solid phase shear milling technology
  • A method of preparing high thermal conductivity polymer-based products using solid phase shear milling technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] In this embodiment, the method for preparing high thermal conductivity polymer-based products using solid phase shearing and milling technology uses pure polymers as high-density polyethylene particles, and the carbon-based filler for thermal conductivity is graphene nanosheets, including the following in parts by weight step:

[0049](1) After mixing 100 parts of high-density polyethylene and 40 parts of graphene nanosheets, add them to a disc-shaped mechanochemical reactor for grinding and pulverization. After the grinding is completed, collect carbon-based fillers and evenly disperse them in the polymer matrix. Composite material powder; Among them, the process parameters of the disc-shaped mechanochemical reactor are: the grinding pressure is 30MPa, the temperature of the disc surface is controlled by feeding a constant temperature circulating liquid medium at a temperature of 40°C, and the grinding cycle is 6 times, and the disc rotation speed is 30r / min;

[0050...

Embodiment 2

[0062] In this embodiment, the method for preparing high thermal conductivity polymer-based products using solid phase shearing and milling technology uses pure polymers as high-density polyethylene particles, and carbon-based fillers for heat conduction as carbon nanotubes, including the following steps in parts by weight :

[0063] (1) After mixing 100 parts of high-density polyethylene and 40 parts of carbon nanotubes, they are added to a disc-shaped mechanochemical reactor for grinding and pulverization. After the grinding is completed, carbon-based fillers are collected and evenly dispersed in the polymer matrix. Material powder; among them, the process parameters of the disc-shaped mechanochemical reactor are as follows: the grinding pressure is 25MPa, the temperature of the disc surface is controlled by feeding a constant temperature circulating liquid medium with a temperature of 40°C, and the grinding cycle is 6 times, and the rotational speed of the disc is 30r / min;...

Embodiment 3

[0076] In this embodiment, the method for preparing a high thermal conductivity polymer-based product using solid phase shearing and milling technology adopts pure polymer as polypropylene particles, and the carbon-based filler for heat conduction is graphene nanosheets, and includes the following steps in parts by weight:

[0077] (1) After mixing 100 parts of polypropylene and 40 parts of graphene nanosheets, add them to a disc-shaped mechanochemical reactor for grinding and pulverization. After the grinding is completed, collect a composite material in which carbon-based fillers are evenly dispersed in the polymer matrix Powder; among them, the process parameters of the disc-shaped mechanochemical reactor are: the grinding pressure is 30MPa, the temperature of the disc surface is controlled by feeding a constant temperature circulating liquid medium at a temperature of 40°C, and the grinding cycle is 8 times, and the disc speed is 30r / min ;

[0078] (2) The composite materi...

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

PropertyMeasurementUnit
strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
Login to View More

Abstract

The present invention provides a method for preparing high thermal conductivity polymer-based products by using solid phase shearing and milling technology. Grinding and pulverizing under the conditions of controlling the temperature of the surface of the grinding disc, the pressure of the grinding disc and the number of cycles of grinding, and then performing compression molding to prepare high thermal conductivity polymer-based products. This method can achieve the machinability of the molding process on the basis of the product having high thermal conductivity (8.02W / mK), or the mechanical properties of the molding product on the basis of satisfying the thermal conductivity of 1W / mK. It is much better than the existing material products prepared by the traditional blending process; the preparation method has the characteristics of simple process, continuous production and the like, and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of polymer-based materials with thermal conductivity, and specifically relates to a method for preparing high-thermal-conduction polymer-based products using solid-phase shearing and milling technology, especially for the use of Chinese authorized patent ZL95111258.9 The disclosed mechanochemical reactor performs the production of highly thermally conductive polymer-based articles. Background technique [0002] With the rapid development of the microelectronics industry, electronic devices are becoming increasingly high-speed, integrated, and high-density, which will inevitably generate a lot of heat locally under working conditions, resulting in increasing heat dissipation pressure on equipment and devices. The main task of heat dissipation design is to dissipate the heat from the heat-generating components inside the device, so heat transfer components are the key. [0003] General-purpose thermally condu...

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): B29C43/02B29C43/58B02C7/17B02C25/00C08L23/06C08K3/04C09K5/14C08L23/12C08K7/00C08L55/02C08L29/04C08L77/00
CPCB29C43/02B29C43/58B02C7/17B02C25/00C08K3/042C08K3/041C09K5/14C08K7/00C08K3/04B29C2043/5816C08L2207/062C08L23/06C08L23/12C08L55/02
Inventor 陈英红荆晶晶石绍宏裴浩然王琪
Owner 成都普美怡科技有限公司