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A kind of infrared-transmitting material, preparation method and application

An infrared-transmitting and infrared transmittance technology, applied in the field of infrared-transmitting materials, can solve the problems of complex molecular structure, low transmittance, and poor mechanical properties of plastics, and achieve improved compatibility, uniform dispersion, and high impact toughness. Effect

Active Publication Date: 2018-06-01
SHANGHAI ZHONGLEI NEW MATERIAL SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complex molecular structure of plastics, there are a lot of lattice vibration absorption bands and rotation absorption bands, the transmittance is not high, and the mechanical properties are poor, and the brittleness is too high

Method used

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  • A kind of infrared-transmitting material, preparation method and application
  • A kind of infrared-transmitting material, preparation method and application
  • A kind of infrared-transmitting material, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] An infrared-transmitting material, its raw material composition includes the following components in parts by weight:

[0057]

[0058]

[0059] The potassium bromide is at 4000~600cm -1There is no absorption at the wavelength; and the purity of the potassium bromide is ≥98%;

[0060] The polycarbonate is obtained by polymerization of bisphenol A and diphenyl carbonate; and the molecular weight is 17000-20000;

[0061] The content of vinyl acetate in the ethylene-vinyl acetate copolymer is 30-50%; and the melt index MI is 200-400;

[0062] The silane coupling agent is γ-(methacryloyloxy)propyltrimethoxysilane;

[0063] The antioxidant is antioxidant 1010;

[0064] Described toner is the mixture of carbon black, yellow powder, red powder and blue powder in the ratio of 1:3:3:4;

[0065] The preparation method is:

[0066] The raw material composition is mixed according to the formula amount, and then extruded through twin-screw, cooled, dried, and pelletized t...

Embodiment 2

[0082] An infrared-transmitting material, its raw material composition includes the following components in parts by weight:

[0083]

[0084]

[0085] The potassium bromide is at 4000~600cm -1 There is no absorption at the wavelength; and the purity of the potassium bromide is 99.5%;

[0086] The polycarbonate is obtained by polymerization of bisphenol A and diphenyl carbonate; and the molecular weight is 17000-20000;

[0087] The content of vinyl acetate in the ethylene-vinyl acetate copolymer is 30%; and the melt index MI is 2;

[0088] The silane coupling agent is γ-(methacryloyloxy)propyltrimethoxysilane;

[0089] The antioxidant is antioxidant 1010;

[0090] Described toner is the mixture of carbon black, yellow powder, red powder and blue powder in the ratio of 1:2:3:4;

[0091] The preparation method is:

[0092] The raw material composition is mixed according to the formula amount, and then extruded through twin-screw, cooled, dried, and pelletized to obtai...

Embodiment 3

[0095] An infrared-transmitting material, its raw material composition includes the following components in parts by weight:

[0096]

[0097]

[0098] The potassium bromide is at 4000~600cm -1 There is no absorption at the wavelength; and the purity of the potassium bromide is ≥98%;

[0099] The polycarbonate is obtained by polymerization of bisphenol A and diphenyl carbonate; and the molecular weight is 17000-20000;

[0100] The content of vinyl acetate in the ethylene-vinyl acetate copolymer is 50%; and the melt index MI is 400;

[0101] The silane coupling agent is γ-(methacryloyloxy)propyltrimethoxysilane;

[0102] The antioxidant is antioxidant 1010;

[0103] Described toner is the mixture of carbon black, yellow powder, red powder and blue powder in the ratio of 1:5:5:4;

[0104] The preparation method is:

[0105] The raw material composition is mixed according to the formula amount, and then extruded through twin-screw, cooled, dried, and pelletized to obta...

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Abstract

The invention relates to an infrared transmittance material. The infrared transmittance material is prepared from, by weight, 60-99 parts of polycarbonate, 5-10 parts of ethylene-vinyl acetate copolymer, 1-5 parts of potassium bromide, 0.1-1.0 part of coupling agent, 0.1-0.2 part of antioxygen and 0.05-0.1 part of toner. KBr is added to polycarbonate, and therefore the composite has an infrared transmittance function; by adding EVA, the composite has high impact toughness and other mechanical properties; by adding the coupling agent, the compatibility of a polymer matrix and inorganic filler is improved, dispersion is uniform, and infrared transmission is promoted. By optimizing the formulation and proportion of the infrared transmittance material, the material with the infrared transmittance rate of 60% or above and notch impact strength of 65 kJ / cm<2> or above is obtained.

Description

technical field [0001] The invention belongs to infrared-transmitting materials, in particular to an infrared-transmitting organic material added with potassium bromide, a preparation method and application. Background technique [0002] Infrared-transmitting materials refer to materials with high infrared transmittance. The requirements for these materials are firstly that the infrared spectrum transmittance should be high, the short-wave transmittance should be low, and the transmission frequency band should be wide. Generally, the infrared band is 0.7-20μm . Infrared optical materials refer to a class of materials used to manufacture lenses, prisms, windows, filters, fairings, etc. in infrared imaging and guidance technology. These materials have the physical and chemical properties that meet the needs, that is, the main indicators are: good infrared transparency and wide transmission band. [0003] The infrared-transmitting materials used in the early days were natural...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L23/08C08K13/02C08K3/16C08K5/5425C08K3/04C08K5/134B29C47/92G02B1/04B29C48/92
CPCB29C48/92B29C2948/9259B29C2948/92704C08L69/00G02B1/04G02B1/041C08L23/0853C08K13/02C08K3/16C08K5/5425C08K3/04C08K5/1345
Inventor 刘春艳王正有
Owner SHANGHAI ZHONGLEI NEW MATERIAL SCI CO LTD