Advantages And Disadvantages Of Utilizing Hot Melt Glue
De Wikifliping
The advantages of hot melt adhesives are primarily manifested in the following features:
1 Fast 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 traits of melting when heated, and bonding when cold. This enables packers to use hot melt adhesives to use higher-speed production lines, and improve production while reducing faulty products, which is handy for continuous and automated high-speed operations, and has a lower cost.
2 The ability of hot melt adhesive is stable
It is not affected by modifications 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 adhesive machinery.
three Hot melt glue does not include water and some other fluxes
Its solids may be made into blocks, films, strips or pellets, which are easy to transport and store. It has a long service life, eliminates damage and waste, and is easy to use.
four The hot melt adhesive doesn't contain solvents and does not emit harmful and poisonous fumes, will not be easy 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's resistant to water and moisture, and 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 can't be bonded as a consequence of cooling and solidification, it could be reheated for bonding operation, so it is very suitable for bonding with some special process requirements parts, such as the restoration of some cultural relics.
7 A wide range of bonding objects, both bonding and sealing, no drying process, simple 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 under:
1 There are limitations in performance, inadequate heat resistance, limited bonding strength, and poor chemical resistance. Modification of the hot-melt adhesive base polymer can improve the heat resistance and energy of the hot-melt adhesive.
2 Coating by hand, the effect just isn't good, and the waste of rubber is tough to control. Therefore, it is necessary to be outfitted with particular equipment to melt and apply glue, comparable to a hot melt gun, which is inconvenient to use and restricts its use and promotion.
3 Bonding is typically affected by climate and seasons. Generally, the wettability is poor in winter, the curing becomes slower in summer season, and the melting time is shortened when the wind is strong.
