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Light-diffusion polycarbonate composite material, and preparation method and application thereof

A technology of polycarbonate and composite materials, applied in the field of materials, can solve problems such as compounding and proportion optimization, lack of color rendering function, disadvantages, etc., and achieve the effect of improving color rendering index, high light transmittance, and increasing haze

Inactive Publication Date: 2018-12-14
GUANGDONG ALDEX NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although light-diffusing agents and pigments are used to select the light-transmitting color, the added pigments do not have the color rendering function, and there is no compounding and ratio optimization by selecting different light-diffusing agents and pigments. Haze and high color rendering index effects are not conducive to the lighting field that requires color rendering index

Method used

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  • Light-diffusion polycarbonate composite material, and preparation method and application thereof
  • Light-diffusion polycarbonate composite material, and preparation method and application thereof
  • Light-diffusion polycarbonate composite material, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-2

[0085] Example 1-2, polymethyl methacrylate cross-linked microspheres and polystyrene cross-linked microspheres are used in proportion, and the appropriate amount is controlled. The light transmittance and haze of the composition are significantly improved, and the light diffusion of LED is fully achieved. At the same time, the blue color developer and the red color developer are also matched in a certain proportion, and the color rendering index R9 is obviously improved.

Embodiment 3-4

[0086] And embodiment 3-4, not only adopt blue chromogenic agent and red chromogenic agent, control their dosage, proportion, and use together, selectively absorb different wavelengths and synergize, improve the color rendering index of LED, and pass It is used in combination with polymethyl methacrylate cross-linked microspheres and polystyrene cross-linked microspheres, so that when the composition is used in LED lamps, it can also achieve high light transmittance, high haze and good performance. The best effect of the mechanical properties.

Embodiment 5-6

[0087] In Example 5-6, although the red colorant, blue colorant and light diffusing agent act synergistically, the color rendering index R9 is improved and the haze is high, but its mechanical properties and light transmittance are slightly low. The best effect can not be achieved, the reason is the defect of light diffusing agent and colorant components.

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Abstract

The invention provides a light-diffusion polycarbonate composite material comprising the following components in parts by weight: 100 parts of polycarbonate; 0.3-2 parts of polymethyl methacrylate crosslinked microspheres; 0.3-3.5 parts of polystyrene crosslinked microspheres; 0.00001-0.003 part of a blue colorant; 0.000001-0.0005 part of a red colorant; and 0.1-2 parts of a processing aid. The light-diffusion polycarbonate composite material is used in a LED lamp shade, so a LED lamp has the advantages of excellent optical properties, high toughness, environmental protection, and high performance / cost ratio.

Description

technical field [0001] The invention relates to the field of materials, in particular to a light-diffusing polycarbonate composite material and a preparation method and application thereof. Background technique [0002] Light-scattering materials for LED lighting refer to materials that not only allow light to pass through but also effectively scatter them, and are mainly used to manufacture light-transmitting covers for various types of lamps. Light-diffusing polycarbonate refers to the principle that by adding a spherical light-diffusing agent to polycarbonate resin, using the different refractive indices of the resin and the light-diffusing agent, the light will undergo multiple reflections on the surface of the light-diffusing agent to achieve the light-diffusing effect. Light-diffusing polycarbonate has high light transmittance and high haze; excellent concealment of light source, no light spots; good aging resistance, good flame retardancy, good UV resistance; can be e...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L33/12C08L25/06C08K5/00C08K5/3447C08K5/134C08K5/526
CPCC08L69/00C08L2201/10C08L2205/03C08L33/12C08L25/06C08K5/00C08K5/0091C08K5/3447C08K5/1345C08K5/526
Inventor 王灿耀陈正吉易庆锋方安平桑杰
Owner GUANGDONG ALDEX NEW MATERIAL CO LTD
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