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High-heat-resistance and anti-red-storm infrared optical composite material composition and preparation method thereof

A technology of infrared optics and composite materials, which is applied in the protection field of composite material compositions, can solve the problems of being susceptible to interference, light source red exposure, easy aging and heat resistance, etc., and achieves the effect of strong anti-interference ability.

Pending Publication Date: 2022-02-08
海越红外光学研究院(广东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional infrared optical materials are generally made of transparent materials such as PC, PMMA, MABS and PS. Although ordinary PMMA has high transparency, it is prone to aging and is not heat-resistant
Although PC, MABS, and PS also have the advantages of high transparency and easy processing, these materials are prone to aging, and general infrared functional materials have red exposure phenomenon at 940nm sensor light source, which is easily disturbed and not suitable for outdoor use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0062] Another embodiment of the present invention provides a method for preparing a high heat-resistant red exposure-proof infrared-transmitting optical composite material composition, comprising the following steps:

[0063] S1: Weigh the PMMA resin, heat-resistant agent, antioxidant, diffusing powder, ultraviolet absorber, light stabilizer and infrared penetrating agent in proportion, then put it into a high-speed mixer and stir it for 20-30 minutes to form a mixture , the rotating speed of the high-speed mixer is 190-230 rev / min;

[0064] S2: Put the mixture into the twin-screw extruder, and after melting, extruding, granulating and drying, the finished product is obtained. The extruder includes nine processing zones, and the processing temperature of each processing zone is 180- 200°C, the vacuum degree of the extruder is ≥0.09MPa, the aspect ratio of the extruder is 30-38, and the screw speed of the extruder is 320-580 rpm;

[0065] S3: Cut into granules by high-speed g...

Embodiment 1

[0067] PMMA resin: 79 parts, heat-resistant agent: 2.1 parts, antioxidant: 2.1 parts, diffusion powder 1.6 parts, ultraviolet absorber 6.7 parts, light stabilizer: 1 part, infrared penetrating agent: 13.4 parts, mix at high speed The above components are mixed evenly in the machine at room temperature, and then produced in a twin-screw extruder; processing conditions: material mixing speed: 190 rpm; temperature in zone one: 180°C, temperature in zone two: 185°C, temperature in zone three Zone temperature: 190°C, Zone 4 temperature: 195°C, Zone 5 temperature: 200°C, Zone 6 temperature: 200°C, Zone 7 temperature: 195°C, Zone 8 temperature: 195°C, Zone 9 temperature: 200°C, screw speed : 400 rpm, the vacuum degree of the extruder is 0.09MPa, and the aspect ratio of the extruder is 30.

Embodiment 2

[0069] PMMA resin: 77 parts, heat-resistant agent: 0.9 part, antioxidant: 0.9 part, diffusing powder 0.6 part, ultraviolet absorber 8.25 part, light stabilizer: 1.8 part, infrared penetrating agent: 16.5 part, mix at high speed The above components are mixed evenly in the machine at room temperature, and then produced in a twin-screw extruder; processing conditions: material mixing speed: 190 rpm; temperature in zone one: 180°C, temperature in zone two: 185°C, temperature in zone three Zone temperature: 190°C, Zone 4 temperature: 195°C, Zone 5 temperature: 200°C, Zone 6 temperature: 200°C, Zone 7 temperature: 195°C, Zone 8 temperature: 195°C, Zone 9 temperature: 200°C, screw speed : 400 rpm, the vacuum degree of the extruder is 0.11MPa, and the aspect ratio of the extruder is 34.

[0070] In summary, the heat-resistant temperature of the composite material obtained in the present invention reaches 120 degrees, and the composite infrared optical sky eye material has a higher in...

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Abstract

The invention discloses a high-heat-resistance and anti-red-storm infrared optical composite material composition and a preparation method thereof. The composition is prepared from PMMA (polymethyl methacrylate) resin, a heat-resistant agent, an antioxidant, diffusion powder, an ultraviolet light absorber, a light stabilizer and an infrared ray penetrating agent. According to the invention, all visible light can be shielded before the wavelength of 800NM, the visible light is 0.01%, infrared rays in a range start to penetrate after the wavelength is 850NM, the infrared transmittance can reach 88-93% or above, absorption and reflection can be avoided, a red storm phenomenon is avoided under a light source of a 940nm sensor, an anti-red-storm effect is achieved, and the anti-interference capability is high.

Description

technical field [0001] The invention relates to the technical field of protection of composite material compositions, in particular to a high heat-resistant red exposure-proof infrared-transmitting infrared optical composite material composition and a preparation method thereof. Background technique [0002] Traditional infrared optical materials are generally made of transparent materials such as PC, PMMA, MABS, and PS. Although ordinary PMMA has high transparency, it is prone to aging and is not heat-resistant. Although PC, MABS, and PS also have the advantages of high transparency and easy processing, these materials are prone to aging, and general infrared functional materials have red exposure phenomenon at 940nm sensor light source, which is easily disturbed and not suitable for outdoor use. Therefore, the industry urgently needs to develop a composite optical material with high heat resistance, anti-red exposure, light stability, anti-interference, non-aging and infra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/12C08K5/134C08K5/20C08K5/00G02B1/04B29B9/06B29C48/625B29C48/92
CPCC08K5/1345C08K5/20C08K5/0041G02B1/04B29C48/92B29C48/625B29B9/06B29C2948/92704B29C2948/9258C08L33/12
Inventor 蒋得元唐红艳
Owner 海越红外光学研究院(广东)有限公司