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Analysis of Hot Melt Adhesive Particles: Reasons for High Adhesive Temperature and Bubbles.
Hot melt adhesive particlesare a type of plastic adhesive. Their physical state changes with temperature within a certain temperature range. The chemical properties of hot melt adhesive are non-toxic and odorless. It is an environmentally friendly chemical.
Hot melt adhesive is usually melted by heating the adhesive. After tuberculosis, the colloidal state changes to liquid state. It can be made through coating, spraying, and peeling.
During the production process of the hot melt adhesive machine, bubbles may sometimes appear. What is the reason for the formation of bubbles? The reason for the formation of bubbles may be due to the presence of bubbles in the colloid itself, the presence of bubbles after melting, or the presence of moisture in the colloid, which can easily form bubbles when heated.
Another type is that the hot melt adhesive is damaged due to high temperature, decomposing to produce gas and bubbles. Therefore, the reason why hot melt adhesive decomposes due to high temperature depends on the composition of the hot melt adhesive.
This type of hot melt adhesive particle is composed of thermoplastic elastomer, softener, and resin. Resin and plasticizer are small molecules. There are many unsaturated bonds in the molecule. Molecular bonds are unstable. When heated to very high temperatures, they react with oxygen in the air.
It produces gases such as carbon dioxide, which in turn creates bubbles.
The use of hot melt adhesive requires appropriate preparation and preheating to ensure smooth operation. 1. Glue Add an appropriate amount according to the amount of glue used and the size of the hot melt glue pool. During normal use, maintain a liquid level range of 35% -80% in the sol tank. If the amount […]
More and more manufacturers are using EVA hot melt adhesive to process books and other materials, regardless of the size of the processing plant, there will still be an upward trend in the future. This is because using this adhesive has the advantages of fast book publishing, short cycle time, beautiful appearance of books, and […]
What are the advantages of hot melt adhesive for books and periodicals? Choosing the appropriate adhesive is an important decision for all manufacturers. It can play a decisive role in product performance, ultimately affecting the productivity and profitability of the enterprise. That’s why we have compiled a list of the main advantages of hot melt […]
< p > on < a href = "http://www.sunlife888.com" > < strong > hot melt adhesive books < / strong > < / a > how to use, through the following questions can help you go less detours: < / p > What application device is used? Binding equipment is usually installed and in use, […]
