Polystyrene composite material and its preparation method

A technology of polystyrene and composite materials, which is applied in the field of thermoplastic materials, can solve the problems of being unsuitable for continuous industrial production, complicated production process, and poor heat conduction effect of heat-conducting polystyrene composite materials, and achieves good mechanical properties, simple preparation process, The effect of improving thermal conductivity

Active Publication Date: 2013-08-07
深圳市比克新材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The existing thermally conductive polystyrene composite materials in the prior art have complex production processes and are not suitable for continuous industrial production
At the same time, the thermally conductive polystyrene composite material produced has poor thermal conductivity

Method used

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  • Polystyrene composite material and its preparation method
  • Polystyrene composite material and its preparation method
  • Polystyrene composite material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The content of the components involved in this embodiment is given according to the content specified in Table 1.

[0026] Step 1. Add metal oxides, metal nitrides, and coupling agents into the mixer, control the mixer to stir at a speed of V1, and stir for a time of t1 to form a first mixture, and place it in an environment of 85-105° C. for drying.

[0027] Step 2: Add polystyrene, toughening agent, antioxidant, processing aid, and part of the above-mentioned dried first mixture to the mixer, control the mixer to stir at a speed of V2, and stir for a time of t2 to form a uniform second mixture. Two mixtures.

[0028] Step 3: Add the above-mentioned second mixture into a twin-screw extruder with an aspect ratio of Dr1, and feed the remaining dried first mixture into the twin-screw extruder through a side feeding port.

[0029] Step 4, control the temperature and the screw speed of the twin-screw extruder, so that the material in the twin-screw extruder is melted under...

Embodiment 2

[0032] The method of Example 1 was repeated according to the content of each component specified in Table 1, and the properties of the polystyrene composite material particles prepared in this example were measured according to the standards described in Table 1. See Table 1 for the measurement results.

Embodiment 3

[0034] The method of Example 1 was repeated according to the content of each component specified in Table 1, and the properties of the polystyrene composite material particles prepared in this example were measured according to the standards described in Table 1. See Table 1 for the measurement results.

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Abstract

The invention discloses a polystyrene composite material and a preparation method thereof. The polystyrene composite material comprises the following components by weight: 100 parts of polystyrene; 100-170 parts of a metal oxide; 15-23 parts of a metal nitride; 7-10 parts of a toughening agent; 5-6 parts of a coupling agent; 3-4 parts of an antioxidant; and 5-8 parts of a processing aid. The preparation process of the polystyrene composite material provided in the invention is simple, and is suitable for continuous industrial production. Compared with the current polystyrene composite materials, the simultaneously prepared polystyrene composite particles have greatly improved thermal conductivity, good thermal conductivity coefficients, and good mechanical properties, thus having good application prospects.

Description

technical field [0001] The invention relates to the technical field of thermoplastic materials, in particular to a polystyrene composite material and a preparation method thereof. Background technique [0002] Polystyrene is an amorphous polymer synthesized by free radical addition polymerization of styrene monomer. Since the side group of the main chain of the macromolecule is a conjugated benzene ring, the molecular structure of polystyrene is irregular, which determines that polystyrene has low water absorption, good mechanical strength, high transparency, easy processing and molding, and strong chemical corrosion resistance. Strong electrical insulation, good high-frequency characteristics, strong radiation resistance, good dimensional stability, and small molding shrinkage. However, polystyrene also has disadvantages such as low impact strength, prominent low-temperature brittleness, prone to stress cracking, and low heat conduction. [0003] Polystyrene is currently ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08K13/06C08K9/04C08K9/06C08K3/22C08K3/28C08K3/38C08K3/34B29C47/92B29C48/92
CPCB29C48/40B29C48/92B29C2948/9259B29C2948/92885B29C2948/92895
Inventor 陈刚刘卫平
Owner 深圳市比克新材科技有限公司
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