What are the types of LED glue?

Glue is an intermediate connecting two materials, mostly appearing in aqueous agents, belonging to fine chemicals, with a wide variety, mainly in the form of sticky, physical form, hardening method and classification method of the adherent material. (1) According to the material ** natural adhesive. It is taken from substances found in nature.

Including starch, protein, dextrin, animal glue, shellac, leather glue, rosin and other biological adhesives; Mineral binders such as bitumen are also included. Artificial adhesives. This is a substance that is artificially manufactured, including inorganic adhesives such as sodium silicate, and organic adhesives such as synthetic resins and synthetic rubber.

2) Water-soluble adhesives are divided according to the characteristics of use. Binders used as solvents with water mainly include starch, dextrin, polyvinyl alcohol, carboxymethyl cellulose, etc. Hot-melt adhesives.

It is a solid adhesive that is used after melting the adhesive by heating. General thermoplastic resins can be used, such as polyurethane, polystyrene, polyacrylate, ethylene-vinyl acetate copolymer, etc. Solvent-based adhesives.

A binder that is insoluble in water but in a solvent. Such as shellac, butyl rubber, etc. Emulsion-type adhesives.

It is mostly suspended in water, such as vinyl acetate resin, acrylic resin, chlorinated rubber, etc. Solvent-free liquid adhesives. At room temperature, it is a viscous liquid, such as epoxy resin.

3) Divide paper-based material adhesives according to packaging materials. It mainly includes starch paste, dextrin, water glass, chemical paste, casein, etc. Plastic adhesives.

It mainly includes solvent-based adhesives such as styrene-butadiene rubber, polyurethane, nitrocellulose, polyvinyl acetate, etc.; Ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer and other water-soluble adhesives; vinyl acetate resin, acrylic resin and other emulsion-type adhesives; Hot-melt adhesives composed of thermoplastic resins such as polystyrene, polyurethane, and polyacrylate. Wood adhesives. It mainly includes bone glue, leather glue, glue, casein, blood glue and other animal glue; It also includes phenolic resin glue, polyvinyl acetate resin glue, urea-formaldehyde resin glue and other synthetic resin glues; It also includes vegetable gums such as bean gum.

The types of LED glue are: silicone and epoxy resin. Silicone is used to seal high-power and SMD lamps, and epoxy resin is mainly used to make low-power lamp beads!

Summary. Dear, I am glad to answer for you: the difference between high-temperature glue and ordinary glue for LED lamp beads: The difference between high-temperature glue and ordinary glue for LED lamp beads is mainly because of their resistance to high-temperature environment and different performance after curing.

Dear, I'm glad to answer for you: The difference between high-temperature glue and ordinary glue for LED lamp beads: The difference between high anterior land temperature glue and Puhui Zhaoqingtong glue for LED lamp beads is mainly because of their resistance to high temperature environment and different performance after curing.

1. Temperature resistance: The temperature resistance of high-temperature glue Mingque eggplant water is higher than that of ordinary glue for New Year's shirts. Generally speaking, high-temperature glues can withstand high temperatures above 150 degrees Celsius, while ordinary glues usually only tolerate room temperature or low temperatures.

2. Adhesion strength: The adhesion strength of high-temperature glue is stronger than that of ordinary glue. Because high-temperature operations such as soldering iron soldering are involved in the manufacturing process of LED lamp beads, it is necessary to use high-temperature glue with high strength and high heat resistance to ensure that the LED lamp beads are firmly fixed.

3. Mechanical properties: The mechanical properties of high-temperature glue water are better than those of ordinary glue. The strength, hardness, elastic modulus and other performance indicators of high-temperature glue are higher than those of ordinary glue, which is why it can be used in high-temperature and high-pressure environments.

In short, the main difference between the two is that high-temperature glue has better high-temperature resistance, stronger adhesive strength and mechanical properties, while ordinary glue cannot be used in high-temperature environment. Therefore, it is recommended to choose high wax rock warm glue to fix the LED lamp beads when manufacturing LED lamp beads.

1.According to the type of molecular chain group: it can be divided into methyl organosilica gel and phenyl organosilica gel. At present, most of the widely used in the LED photoelectric market are methyl silicone, and phenyl silicone is only used in high-demand fields due to its high cost.

2.According to the field of use: it can be divided into silicone gel for LED lamp bead encapsulation and silicone for potting and sealing of LED application products.

LED lamp bead packaging with silicone gel including lens filling silica gel and LED solid silicon gel, etc., LED application products potting silica gel ** is relatively low, as long as it is waterproof and slippery, such as LED water low lamp potting silica gel, solar LED light sealing silica gel, LED display protection silica gel, LED module transparent silica gel, etc.

3.According to the vulcanization conditions: it can be divided into high-temperature vulcanized LED silica gel and room temperature vulcanized LED silica gel.

Regardless of the type of silica gel, no exothermic phenomenon occurs when vulcanized. High-temperature vulcanized silica gel is a high-molecular-weight polysiloxane (molecular weight is generally 40.8 million), and room-temperature vulcanized silicone rubber generally has a low molecular weight (3.60 million), and at both ends of the molecular chain (sometimes in the middle) each has one or two functional groups of the achime, under certain conditions (moisture in the air or appropriate catalyst), these functional groups can react, thus forming a high-molecular weight cross-linked structure. Room temperature vulcanized silicone rubber can be divided into condensation type and addition molding according to its vulcanization mechanism; According to its packaging method, it can be divided into two types: two-component and single-component.

Glue for LED underwater lights, silicone, glue for LED:

1.Non-toxic;

2.Super high temperature resistance -60 +200 ;

3.Excellent electrical insulation performance, seismic resistance and aging resistance;

4.Excellent waterproof, shockproof, anti-acid rain corrosion, waterproof scale erosion and other functions;

5.No corrosion to metals, plastics and other materials;

High thermal conductivity silica gel for LED fluorescent lamps: Features and advantages: high reliability, strong compressibility, flexibility and elasticity, high thermal conductivity, natural viscosity, no additional surface bonding, through the environmental requirements of RoHS and UL, easy to operate;

Application method: Thermally conductive silicone sheet is pasted between the aluminum substrate (PCB board) and the lighting heat sink, the thermally conductive silicone sheet is pasted between the aluminum substrate (PCB board) and the lighting shell, and the thermally conductive silicone sheet is pasted between the aluminum substrate (PCB board) and the lighting aluminum substrate.

Application industry: LED application industry, solar energy industry, backlight industry, LED-TV PDP, etc.