Potting glue and It is called Electronic glue, which is a broad term and is mainly used for bonding, sealing, potting and coating protection of electronic components. What are the main components of polyurethane potting glue? What is the difference between it and epoxy potting glue?
Polyurethane<font face=" The main components of (PU) potting glue are polyisocyanates and polyether polyols, which are cross-linked and solidified in the presence of a catalyst (triethylenediamine) to form a polymer. PolyurethanePotting gluehas good bonding properties, insulation properties and weather resistance. Its hardness can be adjusted by adjusting the concentration of diisocyanate and polyether polyol. Proportion to change. Mainly used for packaging of various electronic and electrical equipment.
Compared with epoxy resin potting glue, polyurethane potting glue is more toxic. Like polyurethane glue, epoxy resin glue can be made into a two-component glue. Epoxy resin potting glue is generally composed of bisphenola epoxy resin, curing agent (amine or acid anhydride), reinforcing additives and fillers. The curing time is long at room temperature and can be cured by heating. After curing, it has high bonding strength and generally high hardness, and can be made into transparent potting glue for packaging electrical modules and diodes.
As for the two-component potting glue, the usage method is basically the same. The general process is: ingredients—mixing— — Vacuuming — Potting — Curing. Of course, this process can use two-component pottingglue Equipment simplifies the entire operation process, saves operating time, and reduces the waste of raw materials.
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