The epoxy resin is easy to cure. With various curing agents, the epoxy resin system can almost be cured in the temperature range of 0~180 ℃. Now, Suzhou Boreida, a brominated epoxy resin manufacturer, will tell you about the curing process of epoxy resin.
Operation time
The operation time (also the working time or service life) is a part of the curing time. After mixing, the resin/curing agent mixture is still liquid and can work and is suitable for application. In order to ensure proper bonding, all construction and positioning work should be completed within the curing operation time.Entering curing
The mixture begins to enter the solidified phase (also known as the maturation phase), when it starts to gel or "mutate". At this time, the epoxy does not work for a long time and may lose its viscosity. It cannot be interfered with at this stage. It will become a soft gel like hard rubber, and you can press it with your thumb.
Because the mixture is only partially cured at this time, the newly used epoxy resin can still be chemically linked with it, so the untreated surface can still be bonded or reacted. In any case, these abilities are decreasing when the mixture is close to curing
Final curing
When the epoxy mixture reaches the stage of solidification and becomes solid, it can be sanded and shaped. At this time, you can't press it with your thumb. At this time, the epoxy resin has about 90% of the final reaction strength. Therefore, you can remove the fixing clip and keep it at room temperature for several days to continue curing.
At this time, the newly used epoxy resin cannot be chemically linked with it. Therefore, the epoxy surface must be properly pretreated, such as polished, to obtain good bonding mechanical strength. The above is the brominated epoxy resin manufacturer - Suzhou Boreida. The series of brominated epoxy resin flame retardant products developed by the company have been put into mass production and become the choice of imported substitute products in the domestic market and exported to Southeast Asia. We look forward to your call for consultation and negotiation.
