Is hot melt glue permanent? The viscosity of hot melt adhesives has different performances due to different adhesives, but it does not mean that the viscosity of hot melt adhesives is not good or unstable, but the adhesion effect that hot melt adhesives can achieve for different bonding areas will be. not exactly. In the
The important role of adhesives and bonding technology With the development of economy and science, adhesives are indispensable in industry, agriculture, transportation, medical care, national defense and people's daily life. Adhesives are involved with almost anyone and anything. Adhesives in my country started in the 1950s. After entering the 1990s, the adhesive industry has developed
Precautions for storage and storage of water-based sealing glue 1. Storage and transportation should be at 0°C-50°C, and avoid sunlight exposure. The molecular structure of glue below 0°C is easy to change, which will weaken or even fail the glue. 2. It is recommended to use it first to avoid expiration. The shelf life is
The quality of the surface treatment is often the key to the success or failure of a good adhesive joint, because the wettability of the adhesive to the surface of the adherend and the intermolecular force at the interface (that is, the adhesion force) are the main reasons for obtaining high bond strength. During the
60970 hot melt adhesive is a polyurethane reactive hot melt adhesive that requires suitable melting equipment. 60970 hot melt adhesive parameter details Product: Polyurethane reactive hot melt adhesive Physical state: solid Color: natural color Viscosity: 35000-50000cps at 130℃ Softening Point - Shelf life: 25℃, sealed package, 6 months Storage Conditions: Store in sealed original container
Adhesives are not only widely used in industrial production, but also can be seen everywhere in life, and even we all use adhesive products more or less. But unlike industrial production and technical research, we often use common names for adhesive products, such as 502 glue, AB glue, white latex, etc. This article will briefly
Introduction to Hot Melt Adhesive Hot melt adhesive usually refers to a polymer adhesive that is solid at room temperature, heated and melted into a liquid state, and after coating and wetting the adherend, is pressed and cooled to complete the bonding within a few seconds. Hot melt adhesive is composed of polymer matrix, tackifier,
There are the following points to judge the quality of wood glue Test glue amount Take the same weight of glue, compare the size of the actual glued area, and calculate the amount of glue applied per unit area. A good splicing glue can paint more splicing area. If the price of glue differs by
Polyurethane glue is a glue containing urethane groups and isocyanate groups in the molecular chain. The main chain of polyurethane is very flexible. Its biggest feature is the resistance to shock vibration and bending fatigue, high peel strength, especially excellent low temperature resistance. Existing glue comes out on top. Polyurethane glue has a simple process,
In order to avoid binding quality problems caused by adhesives, the adhesives for bookbinding should have good aging resistance, high and low temperature resistance, and stretchability. (1) Types of hot melt adhesives for bookbinding There are many kinds of adhesives used for bookbinding, of which the most used is hot melt adhesive. Synthetic resin type
