Optical high-transparency polycarbonate material and preparation method thereof

Abstract

The invention provides an optical high-transparency polycarbonate material which comprises the following components in percentage by mass: 0.6-0.8% of reaction monomer organosilicon and high-purity lanthanum oxide rare-earth element, 0.2-0.4% of glycerol, 0.1-0.3% of reaction silicon and 98.5-99% of polycarbonate (the molecular weight is 240-260 million). The preparation method comprises the following steps: adding macromolecular monomer organosilicon and high-purity lanthanum oxide rare-earth element in a ratio of 9:1 into a reaction kettle, and reacting to synthesize a liquid activating agent, thereby implementing organic element sufficient branching and uniform distribution of nano bond and silicon bond, and obtaining an optical atom linear distribution structure; after mixing the glycerol and reaction silicon in the mass ratio, adding the liquid activating agent to carry out secondary low-temperature reaction, thereby obtaining the monomer high-transparency liquid substance; adopting universal polycarbonate (the molecular weight is 240-260 million) according to the mass ratio, adding 1-1.2% of the monomer high-transparency liquid substance, and drying and mixing in a high-speed mixer; and compounding by using a high-performance double screw extruder, and optimizing and extruding the polymer and polycarbonate, thereby obtaining the high-performance optical polycarbonate resin.

Description

【Technical field】 [0001] The invention relates to a polycarbonate composite material, in particular to an optically highly transparent polycarbonate material and a preparation method thereof. 【Background technique】 [0002] Lack of resources and energy shortage have become bottlenecks restricting the development of the global economy. Against the background of increasingly tight power supply, countries all over the world have started to explore new energy-saving lighting, and LED lights are the most promising emerging products. [0003] Traditional light tubes, including indoor light tubes, are made of glass. With the continuous development of the material industry, current light tubes, especially indoor light tubes, are usually made of neutral or slightly colored polycarbonate. Polycarbonate (PC) is used as the main material, mainly because polycarbonate has a relatively high glass transition temperature and a high light transmission refractive index in the visible light ra...

AI Technical Summary

Problems solved by technology

As a thermoplastic engineering plastic, polycarbonate has excellent physical and mechanical properties, excellent impact resistance, high tensile strength, bending strength and compressive strength; small creep, stable size, good heat resistance and resistance Low temperature, stable mechanical properties, dimensional stability, electrical properties and flame retardancy in a wide temperature range, can be used for a long time at -60 ~ 120 ° C; especially for polycarbonate photorefractive, optical waveguide , nonlinear optics, optical fiber, ladder wave refractive index, transmittance, ultraviolet light and infrared light, etc. have all been developed rapidly. , has gradually replaced the application of inorganic optical materials in optical discs, optical fibers, building materials, automobiles, aircraft lenses, LED precision lenses and deep reflection products; Small, small shrinkage, but not resistant to ultraviolet light, strong alkali, oxidizing acids, amines, ketones, soluble in oxidized hydrocarbons and aromatic solvents, prone to hydrolysis and cracking in water for a long time, and prone to stress cracking, Poor solvent resistance and poor abrasion resistance

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