Views: 8 Author: Site Editor Publish Time: 2018-09-25 Origin: Site
Let's introduce this kind of hot melt adhesives briefly.
Hot melt adhesives are thermoplastic materials composed of stabilizers, additives, pigments and polymers and are sold as solid, cylindrical rods or pellets. The sticks are melted and applied using a hot melt spray gun or sprayer.
Volatile Organic Compounds (VOCs)
Volatile organic compounds (VOCs) are organic compounds that volatilize or release into the atmosphere during manufacturing. On a global scale, there are more and more regulatory issues regarding VOCs and their impact on health and the environment. A key market advantage of hot melt adhesives is that they are not considered VOCs.
Hot Melt Component
It consists of three main parts: a high molecular weight polymer, a binder and a plasticizer.
(1) A polymer is the main adhesive.
(2) Tackifiers or resins provide more adhesion and wetting properties.
(3) The ability of plasticizers (wax or petroleum) to control viscosity and small machinery is easy to dispense.
The most common type include vinyl acetate (EVA). Styrene-butadiene, polyamides(PA), thermoplastic polyurethanes and polyolefins (PO).
Other Advantages of Hot Melt Adhesive
The excellent combination of hot melt adhesives and fast adhesion applications make hot melt adhesives particularly suitable for multi-purpose packaging applications. The shelf life of hot melts is much longer than solvent adhesives.
More Hot melt PA adhesives Choices