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Polycarbonate composite material and preparation method thereof

A technology of polycarbonate and composite materials, applied in the field of polymer materials, can solve the problems of polycarbonate materials such as thermal stability and insufficient mechanical properties, and achieve the effect of simple and easy operation, uniform whiteness and high whiteness

Inactive Publication Date: 2014-04-30
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual production, it is found that the existing titanium dioxide filled modified polycarbonate materials have insufficient thermal stability and mechanical properties, which limits their application.

Method used

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  • Polycarbonate composite material and preparation method thereof
  • Polycarbonate composite material and preparation method thereof
  • Polycarbonate composite material and preparation method thereof

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preparation example Construction

[0026] The embodiment of the present invention also provides the above-mentioned polycarbonate composite material preparation method, and its technological process is as follows figure 1 shown. The method comprises the steps of:

[0027] S01. Weighing formula components: weigh each component according to the formula of the above-mentioned polycarbonate composite material;

[0028] S02. Prepare the first mixed material: mix the weighed polycarbonate and the compatible toughening agent to form the first mixed material;

[0029] S03. Prepare the second mixed material: mix the weighed zirconia and titanium dioxide to form the second mixed material;

[0030] S04. Melt extrusion: add the first mixed material to the feed port of the extruder, and simultaneously add the second mixed material to the side feed port of the extruder for melt extrusion and granulation to obtain the polycarbonate composite material.

[0031] Specifically, in the above step S01, the formula of the polyca...

Embodiment 1

[0038] The formula component of polycarbonate composite material parts by weight is as follows:

[0039] 70 parts of polycarbonate, 2 parts of compatible toughening agent, 1 part of zirconia, 27 parts of titanium dioxide. Among them, the polycarbonate is Teijin's PC 1250Y, the compatible toughening agent is prepared by the above method, the zirconia is tetragonal polycrystalline zirconia (3Y-TZP) stabilized with 3mol% yttria, and the titanium dioxide is rutile titanium dioxide .

[0040] The preparation method of polycarbonate composite material is as follows:

[0041] S11: Weigh each component according to the formula of the above-mentioned polycarbonate composite material;

[0042] S12: Place the weighed polycarbonate and compatible toughening agent components in a mixer, and mix at a medium speed for 15 minutes to obtain the first mixed material;

[0043] S13: placing the weighed zirconia and titanium dioxide components in a mixer, and mixing them at a medium speed for 3...

Embodiment 2

[0046]The formula component of polycarbonate composite material parts by weight is as follows:

[0047] 65 parts of polycarbonate, 5 parts of compatible toughening agent, 5 parts of zirconia, 25 parts of titanium dioxide. Among them, the polycarbonate is PC 302-10 of Dow Company, the compatible toughening agent is prepared by the above method, the zirconia is tetragonal polycrystalline zirconia (3Y-TZP) stabilized by 3mol% yttria, and the titanium dioxide is rutile type titanium dioxide.

[0048] The preparation method of polycarbonate composite material is as follows:

[0049] S21: Weigh each component according to the formula of the above-mentioned polycarbonate composite material;

[0050] S22: Place the weighed polycarbonate and compatible toughening agent components in a mixer, and mix them at a medium speed for 15 minutes to obtain the first mixed material;

[0051] S23: placing the weighed zirconia and titanium dioxide components in a mixer, and mixing them at a medi...

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Abstract

The invention discloses a polycarbonate composite material and a preparation method thereof. The polycarbonate composite material comprises the following components in parts by weight: 59-70 parts of polycarbonate, 1-25 parts of zirconium oxide, 10-27 parts of titanium dioxide and 2-8 parts of compatible flexibilizer. All components in a proper content range mutually react in a melt extrusion process, so that the polycarbonate composite material has the advantages of high whiteness and strong thermal stability and mechanical property. All the components are subjected to melt extrusion by adopting a side feeding mode, and the preparation method can be implemented on a conventional melt extruding machine without a special device, thus the preparation method has the advantages of simplicity, convenience and practicability for operation process, simple process, high benefit and low cost, and is suitable for industrialized production.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a polycarbonate composite material and a preparation method thereof. Background technique [0002] Polycarbonate is a general-purpose engineering plastic with excellent performance. Since its inception, it has rapidly formed industrialized production in developed countries, and the technology continues to develop, and the scale of the device continues to expand. Due to the high impact strength of polycarbonate and its excellent thermal stability, creep resistance, cold resistance, electrical insulation and flame retardancy, it is widely used in electronic appliances, automobile industry, household appliances and other fields. be widely used. [0003] High whiteness polycarbonate materials are more and more widely used in the LED field. However, in actual production, it is found that the existing titanium dioxide filled modified polycarbonate materials have...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L51/06C08K3/22B29C47/92B29C48/92
CPCB29C48/04B29C48/92B29C2948/92704B29C2948/92895
Inventor 徐东徐永谢建达
Owner SHENZHEN KEJU NEW MATERIAL