Organic silicon unique structure, and the performance of inorganic material and organic material, low surface tension, and the basic properties of small viscosity-temperature coefficient, and has high and low temperature resistance, electrical insulation, resistance to oxidation stability, weather resistance, flame retardant, hydrophobic, corrosion resistance, non-toxic, tasteless, and physiological inertia and other excellent properties, are widely used in aerospace, electrical, construction, transportation, chemical industry, textile, food, light industry, medical and other industries. From the point of view of function, organic silicon is mainly used in sealing, adhesion, lubrication, surface activity, stripping, anti-foaming, anti-foaming, waterproof, moisture-proof, inert filling and so on. With the continuous growth of organosilicon materials and the continuous expansion of application fields, a unique and important product system has been formed in the field of new chemical materials. Many varieties are irreplaceable and essential for other chemicals.
Encapsulation and LED by organic silicon is appeared with the development of LED industry of a new class of applications, and the tradition of common organic silicon material has a very significant difference between the two, LED packaging silicone for products at the same time with light color properties, electrical properties, mechanical properties, high heat resistance properties and interface matching characteristics of a variety of materials, and the matching materials including different materials of metal materials and nonmetal materials. All of these features need to be considered not only for immediate performance, but also for performance levels after long-term aging. From the point of view of material demand, LED packaging silica gel undoubtedly belongs to the ranks of extremely difficult organic silicon materials. At the same time, as the whole LED industry is still in a highly competitive stage, in order to design differentiated products in the market, LED encapsulated silica gel with different characteristics has emerged, and mainstream products have been updated very quickly. Therefore, it is necessary to constantly increase research and development investment. The above two aspects will accelerate the rapid shuffling of LED encapsulation silica gel supply chain, which may enter into the pattern of strong combination of the whole value chain in the future.

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