The advantages of hot melt adhesives are primarily manifested within the following aspects:
1 Quick curing speed, good bonding energy and flexibility.
Hot melt adhesives can remedy and bond within a couple of tenths of a second to some seconds, and have the characteristics of melting when heated, and bonding when cold. This enables packers to make use of hot melt adhesives to make use of higher-speed production lines, and increase production while reducing faulty products, which is convenient for steady and automated high-speed operations, and has a lower cost.
2 The ability of hot melt adhesive is stable
It’s not affected by adjustments in temperature and humidity from morning to nighttime within the working environment, which ensures the bonding fastness and eliminates the inherent adhesive peeling problem of packaging machinery.
3 Hot melt glue doesn’t contain water and another fluxes
Its solids will be made into blocks, films, strips or pellets, which are easy to transport and store. It has a protracted service life, eliminates damage and waste, and is straightforward to use.
4 The hot melt adhesive does not contain solvents and does not emit dangerous and poisonous fumes, will not be straightforward to burn or explode, is safe, and will not cause secondary air pollution to the environment and endanger human health.
5 The hot melt adhesive forms a glue layer that is resistant to water and moisture, and zakarian01 might form a reliable glue even in a humid environment.
6 Hot melt adhesive might be repeatedly melted and bonded
If the hot melt adhesive coated on the adherend cannot be bonded as a consequence of cooling and solidification, it can be reheated for bonding operation, so it is very suitable for bonding with some particular process requirements parts, such because the restoration of some cultural relics.
7 A wide range of bonding objects, both bonding and sealing, no drying process, easy bonding process, and good financial benefits.
eight Good gloss and gloss retention, glorious shielding.
After all, hot melt adhesives also have some disadvantages, as described below:
1 There are limitations in performance, inadequate heat resistance, limited bonding energy, and poor chemical resistance. Modification of the hot-melt adhesive base polymer can improve the heat resistance and power of the hot-melt adhesive.
2 Coating by hand, the impact isn’t good, and the waste of rubber is tough to control. Subsequently, it is important to be outfitted with special equipment to melt and apply glue, reminiscent of a hot melt gun, which is inconvenient to make use of and restricts its use and promotion.
3 Bonding is sometimes affected by local weather and seasons. Generally, the wettability is poor in winter, the curing becomes slower in summer, and the melting time is shortened when the wind is strong.