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

Polystyrene heat conduction material and preparation method thereof

A polystyrene and thermally conductive material technology, applied in the field of polystyrene thermally conductive materials and their preparation, can solve the problems of high cost and easy occurrence of circuit failures, and achieve the effect of improving thermal conductivity efficiency

Inactive Publication Date: 2015-07-01
上海寅汀高科技材料有限公司
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in some circuits with strict environmental requirements, the ventilation holes will cause dust in the air to enter and cause circuit failures, and the metal shell will lead to higher costs and prone to circuit failures

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
  • Polystyrene heat conduction material and preparation method thereof
  • Polystyrene heat conduction material and preparation method thereof
  • Polystyrene heat conduction material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A polystyrene heat-conducting material is made of components comprising the following parts by weight:

[0034]

[0035] Among them, polystyrene is high-impact polystyrene; the thermally conductive fiber is carbon fiber with a diameter of 6um; the thermally conductive whisker is graphite whisker; the thermally conductive filler is expandable graphite powder with hydroxyl groups on the surface; the coupling agent is γ-aminopropyl base triethoxysilane; lubricant calcium stearate; antioxidant three [2.4-di-tert-butylphenyl] phosphite.

[0036] The preparation method of the expandable graphite powder with hydroxyl groups on the surface is specifically, preparing a mixed acid solution of perchloric acid and nitric acid with a weight ratio of 1:20, adding commercially available graphite powder to the above mixed acid solution and dispersing by microwave at 55 Oxidative expansion treatment is carried out at a temperature of ℃, and after the treatment is completed, it is fil...

Embodiment 2

[0041] A polystyrene heat-conducting material is made of components comprising the following parts by weight:

[0042]

[0043] Among them, polystyrene is high-impact polystyrene; thermally conductive fiber is copper fiber with a diameter of 15um; thermally conductive whisker is silicon carbide whisker; thermally conductive filler is alumina; coupling agent is 3-aminopropyltrimethoxysilane ; The lubricant is epoxy soybean oil; the antioxidant is N, N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionyl) hexamethylenediamine.

[0044] The preparation method of the above-mentioned polystyrene heat conducting material comprises the following steps:

[0045] (1) Weigh polystyrene, thermally conductive whiskers, thermally conductive fillers, coupling agents, and antioxidants by weight and add them to the weighing scale of the extruder, and add them to the extruder through the weighing scale, melt extrusion, and the extrusion temperature 160~200℃;

[0046] (2) The melt extrude...

Embodiment 3

[0048] A polystyrene heat-conducting material is made of components comprising the following parts by weight:

[0049]

[0050] Among them, polystyrene is high-impact polystyrene; the thermally conductive fiber is carbon fiber with a diameter of 20um; the thermally conductive whisker is four-needle zinc oxide whisker; the thermally conductive filler is expandable graphite powder with hydroxyl groups on the surface; the coupling agent is γ-aminopropylmethyldiethoxysilane; lubricant is naphthenic rubber oil; antioxidant is 2,6-di-tert-butyl-4-methylphenol.

[0051] The preparation method of the expandable graphite powder with hydroxyl groups on the surface is specifically, preparing a mixed acid solution of perchloric acid and nitric acid with a weight ratio of 1:20, adding commercially available graphite powder to the above mixed acid solution and dispersing by microwave at 55 Oxidative expansion treatment is carried out at a temperature of ℃, and after the treatment is comp...

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 relates to a polystyrene heat conduction material and a preparation method thereof. The polystyrene heat conduction material comprises polystyrene, heat conduction fibers, heat conduction whisker, a heat conduction filler, a coupling agent, a lubricant and an anti-oxidant. The polystyrene heat conduction material has good heat conduction effects and excellent mechanical properties. The preparation method utilizes two extruders connected in series, realizes addition of all the ingredients into the extruders and extrusion blending molding, and has the characteristics of high production efficiency and good heat conduction agent dispersion effects.

Description

technical field [0001] The invention relates to a polymer composition, in particular to a polystyrene heat-conducting material and a preparation method thereof. Background technique [0002] Polystyrene (PS) is a plastic with linear structure polymerized from styrene monomer. As one of the five general-purpose plastics, polystyrene and its modified materials are widely used in food packaging, electronic appliances, automotive appliances and other fields. [0003] With the increasing application of polystyrene in the fields of electronic appliances and automobile home appliances, new requirements are put forward for the performance of polystyrene materials. In the field of electronic equipment, polystyrene materials are often used as brackets or housings for circuits, chips, and electronic components. Electronic components generally generate heat during use. How to ensure that the heat generated by electronic components can be dissipated in time will affect the service life ...

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 Applications(China)
IPC IPC(8): C08L51/04C08K13/06C08K9/02C08K3/04C08K13/04C08K7/06C08K7/10C08K7/08C08K3/38C08K3/34C08K3/28C08K3/22
Inventor 李晓强
Owner 上海寅汀高科技材料有限公司