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Energy-saving LED lamp lampshade material and preparing method thereof

A technology for LED lamps and lampshades, applied in lampshades, lighting and heating equipment, sustainable manufacturing/processing, etc., can solve the problem that the wear resistance and toughness need to be further improved, affect the working life of energy-saving LED lamps, and the light transmission performance needs to be further improved and other problems, to achieve excellent comprehensive performance, simple and easy preparation method, and low transmitted light attenuation

Active Publication Date: 2019-05-24
江门市塑禾照明科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, polycarbonate is mostly used as the lampshade material of LED lamps. In order to endow the carbonate material with light scattering function, some polymers or inorganic particles with different refractive indices are added to the continuous phase as a dispersed phase, and then passed through the plastic The thermoplastic resin is prepared by injection molding, which not only affects its light transmission performance, but also increases the thermal expansion coefficient of the lampshade material several times or even dozens of times, seriously affecting the working life of energy-saving LED lamps.
In addition, the lampshade materials of energy-saving LED lamps in the prior art still have disadvantages such as high density, high purchase price and cost, fragility, poor anti-aging performance, wear resistance and toughness that need to be further improved.
[0004] The Chinese invention patent application publication number CN105885381A discloses a composite material for LED lampshades, which includes the following materials in parts by weight: polypropylene 30%-40%, PET 20%-30%, polycarbonate 30%- 45%, silicone light diffusing agent 3%-5%, auxiliary agent 2%-5%, through the material ratio, the composite material has the advantages of strong adhesion and low cost, and the prepared LED lampshade has the advantages of light weight , low transportation cost, non-fragile, wear-resistant and good toughness, the light transmission performance of this LED lamp shade material needs to be further improved, and its thermal expansion coefficient increases several times or even dozens of times, which seriously affects the energy-saving LED lamp. In addition, its anti-ultraviolet aging performance, high temperature resistance, mechanical strength, fire resistance and flame retardant performance need to be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A preparation method of an energy-saving LED lamp shade material, comprising the steps of:

[0031] Step S1 is based on the preparation of carbonate polycondensation monomers: under a nitrogen atmosphere, dissolve 3.1kg of 2,3-diphenol butadiene and 1kg of vinylene carbonate in 12kg of tetrahydrofuran to form a solution, and then add the solution to a reflux In a three-neck flask with a condenser tube and an electric stirrer, reflux and stir the reaction at 100°C for 8 hours, and then spin evaporate to remove the solvent to obtain a polycondensation monomer based on carbonate;

[0032] Preparation of polycondensate in step S2: 1.14 kg of polycondensation monomer based on carbonate, (Z)-3-(3-chloro-2-fluorophenyl)-2-(4-chloro-2- Add 1kg of fluorophenyl)-2-acrylonitrile, 0.3kg of sodium hydroxide, and 0.3kg of chlorobenzoquinone to a three-necked flask connected with a water separator, add 8kg of dimethyl sulfoxide and 3kg of toluene, and heat the reaction system to 95°C...

Embodiment 2

[0037] A preparation method of an energy-saving LED lamp shade material, comprising the steps of:

[0038] Step S1 is based on the preparation of carbonate polycondensation monomers: under a helium atmosphere, 3.1 kg of 2,3-diphenol butadiene and 1 kg of vinylene carbonate are dissolved in 12.5 kg of acetone to form a solution, and then the solution is added to the container In a three-necked flask with a reflux condenser and an electric stirrer, reflux and stir the reaction at 102°C for 8.5 hours, and then spin evaporate to remove the solvent to obtain a polycondensation monomer based on carbonate;

[0039] Preparation of polycondensate in step S2: 1.14 kg of polycondensation monomer based on carbonate, (Z)-3-(3-chloro-2-fluorophenyl)-2-(4-chloro-2- Add 1kg of fluorophenyl)-2-acrylonitrile, 0.35kg of potassium hydroxide, and 0.3kg of 1,4-naphthoquinone to a three-necked flask connected with a water separator, then add 9kg of N,N-dimethylformamide and Toluene 3.5kg, heat the ...

Embodiment 3

[0044] A preparation method of an energy-saving LED lamp shade material, comprising the steps of:

[0045] Step S1 is based on the preparation of carbonate polycondensation monomers: under a neon atmosphere, 3.1 kg of 2,3-diphenol butadiene and 1 kg of vinylene carbonate are dissolved in 13 kg of dichloromethane to form a solution, and then the solution is added to In a three-necked flask equipped with a reflux condenser and an electric stirrer, reflux and stir the reaction at 105°C for 9 hours, and then spin evaporate to remove the solvent to obtain a polycondensation monomer based on carbonate;

[0046] Preparation of polycondensate in step S2: 1.14 kg of polycondensation monomer based on carbonate, (Z)-3-(3-chloro-2-fluorophenyl)-2-(4-chloro-2- Add 1kg of fluorophenyl)-2-acrylonitrile, 0.45kg of sodium carbonate, and 0.3kg of chlorobenzoquinone to a three-necked flask connected with a water separator, then add 10kg of N-methylpyrrolidone and 4.5kg of toluene to the reaction...

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PUM

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Abstract

The invention discloses a preparing method of an energy-saving LED lamp lampshade material. The preparing method comprises the steps of 1, preparing carbonic ester-based polycondensation monomers, 2,preparing polycondensates, 3, preparing addition polymers, and 4, shaping the energy-saving LED lamp lampshade material. The invention further discloses the energy-saving LED lamp lampshade material prepared by adopting the preparing method. The energy-saving LED lamp lampshade material is good in comprehensive performance, not fragile, excellent in aging resistance, abrasion resistance, toughness, high temperature resistance and flame resistance, good in light transmittance, small in transmittance lumen depreciation, even in fog face and long in service life.

Description

technical field [0001] The invention relates to the technical field of LED lamp manufacturing, in particular to an energy-saving LED lamp shade material and a preparation method thereof. Background technique [0002] With the continuous consumption of energy and the increasing scarcity of resources, the international call for energy saving and consumption reduction is getting louder and louder. Since my country's reform and opening up, the national economy has grown rapidly, and "scientific and technological innovation, independent innovation" has become the mainstream of my country's industrial development. my country's industry is gradually developing in the direction of conservation, energy saving, emission reduction, and low carbon. As lamps that are closely related to people's lives, they have also begun to develop in the direction of energy saving. As a clean lighting device that can directly convert electrical energy into light energy, energy-saving LED lamps have at...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F265/04C08F283/02C08F218/00C08G64/30C08G64/12C08G64/10F21V3/06F21Y115/10
CPCY02P20/10
Inventor 彭新良刘山明
Owner 江门市塑禾照明科技有限公司
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