Flame-retardant photodiffusion polypropylene composite material for LED and workpiece thereof

Abstract

The invention relates to a flame-retardant photodiffusion polypropylene composite material for an LED and a workpiece thereof. The composite material is prepared from the following components in partsby weight: 100 parts of homo-polypropylene, 2 to 5 parts of compound flame retardant, 1 to 5 parts of organic silicone photodiffusion agent, 1 to 5 parts of barium sulfate photodiffusion agent, 1 to2 parts of light stabilizer, and 2 to 3 parts of chemical modifier. Compared with the prior art, the flame-retardant photodiffusion polypropylene composite material prepared in the invention is excellent in mechanical performance, high in light transmittance, excellent in flame retardant performance, and free from precipitation of flame retardant.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a flame-retardant light-diffusing polypropylene composite material for LEDs and a product thereof. Background technique [0002] With the development of LED light sources, LED light diffusion plates and reflector materials have also developed rapidly. Traditional reflective materials are metal die-casting or modified PC materials. The cost of metal die-casting parts is high and the process is cumbersome. The price of modified PC materials expensive. [0003] Polypropylene is widely used in industries such as automobiles and home appliances due to its low density, corrosion resistance, easy processing, low cost, recyclability, and excellent mechanical properties. However, there is no report about the application of polypropylene materials in the field of LED shading and reflection. Polypropylene has a certain degree of permeability in the case of thin walls, so the research on t...

AI Technical Summary

Problems solved by technology

[0004] The Chinese invention patent with the application number 201210519772.7 discloses a light-diffusion modified polypropylene material and its preparation method. The following components are contained in the following weight percentages: polypropylene 98.5-99%, light-diffusing agent 0.3-0.8%, transparent modified 0.05-0.5% stabilizer, 0.1-0.5% antioxidant, 0.1-0.3% light stabilizer, prepared a polypropylene material with light diffusion effect, but did not solve the problem of flame retardancy

[0005] The Chinese patent application number 201210233346.7 discloses a high fluidity precipitation-resistant halogen-free flame-retardant polypropylene composite material, which is made of the following raw materials in weight percentages: high-melting index block copolymerized polypropylene 50-70%, super High melt refers to homopolypropylene 5-20%, ammonium polyphosphate 5-21%, pentaerythritol 10-21%, melamine urate 5-11%, maleic anhydride grafted polypropylene 3-10%, antioxidant Agent PS802 0.1-1.2%, antioxidant 168? 0.1-1.2%; antioxidant 10100.1-1.0%; lubricant TAF 0.5-3.0%, solve the flame retardancy and precipitation resistance of polypropylene materials, but do not have light diffusion effect

Images