High weather resistance black polycarbonate material selectively transparent to visible light and preparation method thereof

A polycarbonate and visible light technology, applied in the field of polymer materials, can solve the problems of inability to realize the light transmission effect of high-gloss black materials, visible light transmittance and loss of control of light transmission color, etc., to achieve strong applicability, good weather resistance, Good uniformity of light transmission

Active Publication Date: 2022-05-20
GUANGDONG KUMHO SUNNY POLYMER MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these methods can improve the covering and near-infrared transmittance of the material to a certain extent, they will lose control over the visible light transmittance and light transmission color in actual use, and cannot achieve different light transmission effects of high-gloss black materials.

Method used

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  • High weather resistance black polycarbonate material selectively transparent to visible light and preparation method thereof
  • High weather resistance black polycarbonate material selectively transparent to visible light and preparation method thereof
  • High weather resistance black polycarbonate material selectively transparent to visible light and preparation method thereof

Examples

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preparation example Construction

[0038] A method for preparing a highly weather-resistant black polycarbonate material selectively transparent to visible light comprises the following steps:

[0039]A, take by weight PC resin, visible light penetrating agent, antioxidant, lubricant and UV absorber for subsequent use;

[0040] B. Mix the components weighed in the step A at a high speed to obtain the mixture;

[0041] C. After the mixture obtained in step B is subjected to twin-screw melt extrusion, water cooling and air-drying and pelletizing, a highly weather-resistant black polycarbonate material that selectively transmits visible light is obtained.

[0042] Through the use of azo-type and anthraquinone-type weakly acidic visible light penetrants, polycarbonate materials can control the light transmission color and light transmittance in the visible light band. In addition, adding antioxidants and UV absorbers to the system can effectively To improve the weather resistance of polycarbonate materials, the pr...

Embodiment 1～7 and comparative example 1

[0066] A highly weather-resistant black polycarbonate material selectively transparent to visible light, prepared according to the following steps:

[0067] (1) Calculated according to parts by weight, each raw material is taken by weighing the raw material component content in Table 1 for subsequent use;

[0068] (2) Add each component weighed in the step (1) into a high-speed mixer and stir and mix evenly, the rotating speed of mixing and stirring is 350r / min, and the mixing time is 15min to obtain a mixture;

[0069] (3) Put the mixture obtained in step (2) into a twin-screw extruder for twin-screw melt extrusion. The extrusion temperature is 260°C, the screw speed is 300rpm, and the extrusion pressure is 2MPa. After water cooling and air-drying, pelletize Finally, high-weather-resistant black polycarbonate material pellets that selectively transmit visible light were obtained, and then a 150*100*3mm sample was prepared after injection molding for various performance tests....

Embodiment 8

[0080] A highly weather-resistant black polycarbonate material selectively transparent to visible light, prepared according to the following steps:

[0081] (1) Calculated in parts by weight, take 98 parts of PC resin 2, 1 part of visible light penetrating agent 5, 0.3 part of antioxidant, 0.2 part of lubricant and 0.5 part of UV absorber for subsequent use;

[0082] (2) Add each component weighed in the step (1) into a high-speed mixer and stir and mix evenly, the rotating speed of mixing and stirring is 350r / min, and the mixing time is 15min to obtain a mixture;

[0083] (3) Put the mixture obtained in step (2) into a twin-screw extruder for twin-screw melt extrusion. The extrusion temperature is 260°C, the screw speed is 300rpm, and the extrusion pressure is 2MPa. After water cooling and air-drying, pelletize Finally, high-weather-resistant black polycarbonate material pellets that selectively transmit visible light were obtained, and then a 150*100*3mm sample was prepared ...

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Abstract

The invention belongs to the technical field of polymer materials, and in particular relates to a highly weather-resistant black polycarbonate material which selectively transmits visible light and a preparation method thereof. A highly weather-resistant black polycarbonate material selectively permeable to visible light, comprising the following components in parts by weight: 95-98.5 parts of PC resin, 0.5-1.5 parts of visible light penetrating agent, 0.1-1 part of antioxidant, lubricant 0.1 to 1 part of UV absorber and 0.2 to 0.8 parts of UV absorber; the visible light penetrating agent is one or a combination of anthraquinone type weakly acidic visible light penetrating agent and azo type weakly acidic visible light penetrating agent . The purpose of the present invention is to propose a highly weather-resistant black polycarbonate material that selectively transmits visible light and its preparation method. Good uniformity, good weather resistance, easy to use directly in automotive interior or lighting components.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a highly weather-resistant black polycarbonate material which selectively transmits visible light and a preparation method thereof. Background technique [0002] Due to its excellent impact resistance, heat resistance and light transmittance, polycarbonate is more and more widely used in the fields of automobiles, home appliances, and building materials. Taking automobiles as an example, most components such as lighting systems and instruments have polycarbonate. Carbonate figure. With the emergence of more and more novel interior effects in the automotive field, the demand for high-gloss black light-transmitting materials has gradually emerged. Colorful light-transmitting colors can meet the specific needs of different customers, but traditional high-gloss black materials absorb visible light, resulting in almost It is opaque, which limits its use in light...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L83/04C08K5/23C08K5/08
CPCC08L69/00C08L2201/08C08L83/04C08K5/23C08K5/08
Inventor 冉敏周霆辛敏强郭东平
Owner GUANGDONG KUMHO SUNNY POLYMER MATERIAL
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