Weather-resistant and flame-resistant light-diffusion PC applicable to outdoor lampshades and preparation method of weather-resistant and flame-resistant light-diffusion PC

An outer lampshade and light diffusing technology, applied in the field of light diffusing PC materials and the preparation of light diffusing PC materials, can solve the problems of poor weather resistance, insufficient flame retardancy, easy aging of light diffusing PC, etc., so as to improve the flame retardant efficiency. , Improve weather resistance and flame retardant performance, improve the effect of flame retardant effect

Active Publication Date: 2017-06-09
厦门天宇新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to provide a weather-resistant and flame-retardant light-diffusing PC that can be used for outdoor lampshades and its preparation method to solve the problem of light-diffusing PC that is easy to age in the prior art, has poor weather resistance and insufficient flame retardancy, and cannot meet the needs of lamps at the same time. The problem of balance between color and light transmittance

Method used

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  • Weather-resistant and flame-resistant light-diffusion PC applicable to outdoor lampshades and preparation method of weather-resistant and flame-resistant light-diffusion PC
  • Weather-resistant and flame-resistant light-diffusion PC applicable to outdoor lampshades and preparation method of weather-resistant and flame-resistant light-diffusion PC
  • Weather-resistant and flame-resistant light-diffusion PC applicable to outdoor lampshades and preparation method of weather-resistant and flame-resistant light-diffusion PC

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Example 1: Preparation of a weather-resistant and flame-retardant light-diffusing PC that can be used for outdoor lampshades

[0075] Table 1 Example 1-5 A kind of weather-resistant and flame-retardant PC formula table (w / w%) that can be used for light diffusion of outdoor lampshades

[0076]

[0077]

[0078] refer to figure 1 , synthetic fluorocarbonate polyurethane elastomer:

[0079] Preparation of Compound 1:

[0080] 1) Weigh 2g of bisphenol A in 40mL of dichloromethane, and then add 0.016g of transesterification catalyst NaOH;

[0081] 2) Weigh 1.87g of diphenyl carbonate in 20mL of dichloromethane and slowly add it to 1) under the condition of stirring at room temperature, and react at 40°C for 72 hours; after the reaction is completed, filter it, and use an appropriate amount of Diethyl ether was washed, and the obtained filtrate was distilled under reduced pressure with a rotary evaporator to obtain a solid, and the resulting solid was extracted 3 tim...

Embodiment 2

[0094] Example 2: Preparation of a weather-resistant and flame-retardant light-diffusing PC that can be used for outdoor lampshades

[0095] The synthesis process of the fluorine-containing carbonate polyurethane elastomer is the same as in Example 1.

[0096] Raw material formula: see Table 1. The preparation method of Example 2 is the same as that of Example 1, except that when the above-mentioned mixed slurry is poured into the twin-screw extruder, the temperature is set at 280°C.

Embodiment 3

[0097] Example 3: Preparation of a weather-resistant and flame-retardant light-diffusing PC that can be used for outdoor lampshades

[0098] The synthesis process of the fluorine-containing carbonate polyurethane elastomer is the same as in Example 1.

[0099] Raw material formula: see Table 1. The preparation method of Example 3 is the same as that of Example 1, except that when the above-mentioned mixed slurry is poured into the twin-screw extruder, the temperature is set at 270°C.

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Abstract

The invention discloses weather-resistant and flame-resistant light-diffusion PC applicable to outdoor lampshades and a preparation method of the weather-resistant and flame-resistant light-diffusion PC. The weather-resistant and flame-resistant light-diffusion PC is prepared by, by weight percentage, 81.25-90.17% of PC, 5-15% of toughening agent, 0.8% of light diffusion agent, 1.5-2.5% of flame retardant, 0.4-0.6% of synergic-effect flame retardant, 0.1-0.5% of hydrolysis-resistant agent, 0.1-0.5% of anti-UV agent, 0.03-0.05% of pigment, 0.3% of antioxidant and 0.3% of dispersing agent. The light-diffusion PC has the advantages that the light-diffusion PC is good in flame-retardant effect and weather resistance, indoor and outdoor use requirements can be satisfied, the light-diffusion PC is high in light permeability, good in toughness and ideal in appearance color, and consumers' requirements on lamps can be satisfied.

Description

technical field [0001] The invention relates to the field of light-diffusing polycarbonate (PC) materials, in particular to a weather-resistant and flame-retardant light-diffusing PC material that can be used for outdoor lampshades, and a preparation method of the light-diffusing PC material. Background technique [0002] Energy saving, consumption reduction and environmental protection are still the same themes in today's world. As the energy-saving advantages of LED lamps become prominent, the application range of LED lamps is becoming wider and wider, and the traditional indoor lighting is gradually moving closer to outdoor lighting. This requires that the light-diffusing PC used as a lampshade material has more comprehensive performance, especially in terms of weather resistance. [0003] Light-diffusing PC is a light-transmitting and opaque light-diffusing material that is made of transparent PC as the base material, adding a certain proportion of light-diffusing agent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L75/04C08K13/02C08K3/36C08K3/22C08K5/54C08G18/83C08G18/40C08G18/44C08G18/61
CPCC08G18/4009C08G18/44C08G18/61C08G18/831C08L69/00C08L2201/02C08L2201/08C08L2203/20C08L75/04C08K13/02C08K3/36C08K5/54C08K2003/2241
Inventor 巢巍李开鹏陈舜权
Owner 厦门天宇新材料科技有限公司
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