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Weather-resistant halogen-free flame-retardant light-diffusion PC/PBT material for charging pile panel and preparation method thereof

A charging pile and light diffusion technology, applied in the field of polymer materials, can solve the problems of poor mechanical properties and processability, low flame retardancy, poor weather resistance, etc., and achieve good processability, improved flame retardancy, and high transparency.

Active Publication Date: 2020-12-04
QINGDAO GON TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The invention provides a weather-resistant halogen-free flame-retardant light-diffusing PC / PBT material for a charging pile panel and a preparation method thereof, which solves the problems of low flame-retardant grade, low transparency, and haze in the light-diffusing PC / PBT alloy material in the prior art. Large size, poor weather resistance and poor mechanical properties and processing properties

Method used

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  • Weather-resistant halogen-free flame-retardant light-diffusion PC/PBT material for charging pile panel and preparation method thereof

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preparation example Construction

[0034] A method for preparing a weather-resistant halogen-free flame-retardant light-diffusing PC / PBT material for a charging pile panel of the present invention comprises the following steps:

[0035] 1) Take high-viscosity polycarbonate, polybutylene terephthalate and methylphenylsiloxane, mix and stir to obtain a mixture, and set aside;

[0036] 2) Take a toughening agent, an antioxidant, an ultraviolet absorber, a light stabilizer, an aldehyde inhibitor, and a light diffusing agent, and add them to the mixture obtained in step 1), and stir to obtain a mixture;

[0037] 3) Put the mixture obtained in step 2) into a twin-screw extruder for extrusion. The extruder temperature zone temperature is: 235-245°C for the first stage, 255-265°C for the second stage, 260-270°C for the third stage, and 260-270°C for the fourth stage. 245-255°C, five stages 245-255°C, six stages 255-265°C, seven stages 255-260°C, eight stages 245-260°C, nine stages 245-260°C, ten stages 245-260°C, eleve...

Embodiment 1

[0040] A method for preparing a weather-resistant halogen-free flame-retardant light-diffusing PC / PBT material for a charging pile panel of the present invention comprises the following steps:

[0041] 1) Weigh raw materials according to the following parts by weight: 78 parts of high-viscosity polycarbonate, 10 parts of low-viscosity PBT, 10 parts of bisphenol A bis(diphenyl phosphate), 0.7 part of methylphenylsiloxane, transparent Toughening agent low molecular weight polyolefin 0.8 parts, antioxidant β-(3,5-di-tert-butyl-4-hydroxyphenyl) octadecyl propionate 0.2 parts, tris[2,4-di-tert-butyl 0.2 part of phenyl]phosphite antioxidant, 0.15 part of UV absorber 2,2'methylene-(6-(2H-benzotriazole)-4-tert-octyl)phenol, neutral hindered amine light 0.15 parts of stabilizer, 0.5 parts of fatty acid ester mixture aldehyde inhibitor, 0.8 parts of light diffusing agent EXM-5;

[0042] 2) Take high-viscosity polycarbonate, low-viscosity PBT and methylphenylsiloxane, put high-viscosity...

Embodiment 2

[0046] A method for preparing a weather-resistant halogen-free flame-retardant light-diffusing PC / PBT material for a charging pile panel of the present invention comprises the following steps:

[0047] 1) Weigh the raw materials according to the following parts by weight: 82 parts of high-viscosity polycarbonate, 8 parts of low-viscosity PBT, 8 parts of bisphenol A bis(diphenyl phosphate), 0.6 part of methylphenylsiloxane, transparent Toughener 0.8 parts of low molecular weight polyolefin, β-(3,5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate antioxidant 0.2 parts, tris[2,4-di-tert-butyl 0.2 parts of phenyl]phosphite antioxidant, 0.15 parts of UV absorber 2,2'methylene-(6-(2H-benzotriazole)-4-tert-octyl)phenol, neutral hindered amine 0.15 part of light stabilizer, 0.5 part of fatty acid ester mixture aldehyde inhibitor, 0.8 part of light diffusing agent EXM-5;

[0048] 2) Take high-viscosity polycarbonate, low-viscosity PBT and methylphenylsiloxane, put high-viscosity ...

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Abstract

The invention discloses a weather-resistant halogen-free flame-retardant light diffusion PC / PBT material for a charging pile panel and a preparation method thereof. The material comprises the following raw materials in parts by weight: 77-85 parts of polycarbonate, 8-12 parts of PBT, 7-11 parts of bisphenol A bis(diphenyl phosphate), 0.3-0.7 part of methyl phenyl siloxane, 0.3-1 part of a transparent toughening agent, 0.4-0.8 part of an antioxidant, 0.1-0.4 part of a light stabilizer, 0.1-0.4 part of an ultraviolet light absorber, 0.2-1 part of an aldehyde inhibitor and 0.5-1 part of a light diffusion agent. The invention also provides a preparation method of the PC / PBT material. According to the invention, the halogen-free liquid flame retardant and an auxiliary flame retardant are compounded, so that a PC / PBT material product can achieve a V0-grade flame retardant effect in an extremely thin state without adding a dripping agent PTFE, the haze and transparency are good, the mechanical properties are not influenced, and the comprehensive properties of the PC / PBT material are improved.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to a weather-resistant, halogen-free, flame-retardant, light-diffusing PC / PBT material for a charging pile panel and a preparation method thereof. Background technique [0002] General high-performance light-diffusing PC materials are made of polycarbonate as the base material, and imported light-diffusing agents and other special materials are polymerized. The diffusivity can reach 99%, and the light transmittance can reach 86-95%. Burning light diffusing PC, used only on traditional lampshades indoors. Outdoors, due to the occurrence of light, PC generates various chemical groups when it is irradiated by ultraviolet light. Although it does not directly react with the water in the environment, the polar groups formed when the PC molecular chain is broken It is very conducive to the penetration of water, so that PC is hydrolyzed to release oligomers and bisphenol A. These...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L67/02C08L23/02C08K5/523C08K5/134C08K5/526C08K5/3475C08K5/5419C08K5/00
CPCC08L69/00C08L2201/02C08L2201/22C08L2201/10C08L2201/08C08L2205/03C08L67/02C08L23/02C08K5/523C08K5/1345C08K5/526C08K5/3475C08K5/5419C08K5/00
Inventor 李艳王爱国王龙李庆文宋健业刘京鑫阮振翔黄培元曲健
Owner QINGDAO GON TECHNOLOGY CO LTD
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