Do you know how the hot melt adhesive stick solidifies?

The most important thing we often ask when purchasing and choosing hot melt adhesive is whether its adhesion is good or not! How strong is the stickiness?
The factors that affect the viscosity of the hot melt adhesive rod cannot be ignored, except for the formula and raw material ratio, as well as the production method. Different curing times and processes can also affect the adhesion of the hot melt adhesive rod. And these factors have a significant impact on the characteristics and performance of hot melt adhesive, as well as its application range and purpose. Let’s take a brief look at how the hot melt adhesive stick solidifies?
The formation of hot melt adhesive rods is actually a solvent-free adhesive formed by heating, melting, cooling, and hardening thermoplastic polymer materials as the main components. The curing temperature is actually one of the important parameters for the curing of adhesives. A high curing temperature can easily trigger the loss of adhesive, leading to the embrittlement of the adhesive layer and a decrease in viscosity; Therefore, strict control of curing temperature is required during curing, and each type of colloid has a specific curing temperature.
In addition, hot melt adhesive actually has different curing times on objects in different fields. For example, gift boxes, cardboard packaging, etc., the curing time is generally around 5-8 seconds; Handicrafts such as headwear and toys take around 8-10 seconds; The types and performance of hot melt adhesive rods used in different industries may vary, so the curing time may also vary, but generally only takes about ten seconds. The curing of hot melt adhesive is also affected by the surrounding environmental temperature, and the lower the temperature, the faster the curing speed.