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2023.03.23
Characteristics of waterborne polyurethane adhesive
Aqueous polyurethane adhesive refers to the adhesive formed by dissolving or dispersing polyurethane in water. In practical applications, most waterborne polyurethanes are polyurethane emulsions or dispersions, and less aqueous solutions.
2023.03.13
PUR hot melt adhesive ordering is less expensive than lock wire ordering.
Books bound by PUR hot melt adhesive have strong vitality to the surrounding environment, especially heat and low temperature resistance. We tested this through experiments. First simulate the temperature adaptability that the glued book will face in winter. The two books bound by PUR glue and EVA glue are put into the refrigerator at the same time. The set temperature is -20 degrees and the placing period is 12 hours. After 12 hours, the two books are removed from the refrigerator. The opened pages are compared. The book bound by EVA hot melt glue will produce brittle cracking sound. The book stickers have been opened and the pages are dropped, while the book bound by PUR glue is still intact.
2023.02.27
How to better use PUR hot melt adhesive?
PUR hot melt adhesive (PolyurethaneReactive) is a new type of one-component, additive-free hot melt weathering adhesive. It is cured by moisture in the air and has excellent bonding strength and impact resistance after thorough curing. At the same time, it has excellent bonding compressive strength, heat resistance, solvent corrosion resistance and temperature resistance. In recent years, it has become a relatively good bonding adhesive for electronic products and electronic industry.
2023.02.10
Application of PUR hot melt adhesive
In recent years, with the overall improvement of the technical strength of packaging and printing, prepress design, packaging and printing, and post-press technology are all developing in a higher, faster and more precise direction. Nowadays, there are many binding adhesives to choose from, such as PUR hot melt adhesive, butadiene acetate) hot melt adhesive, PVA refrigeration solvent, etc. Let's first understand PUR hot melt adhesive.
2023.01.31
What are the advantages of reactive film adhesives?
Reactive film adhesives are widely used in various industries, so its use is certainly very extensive. In fact, this reactive film adhesive has many advantages, such as manufacturability. In fact, many people do not understand how it can be made into binding materials?
2023.01.11
Basic principles of reactive film adhesives
The mechanical theory of reactive film adhesive, from the microscopic point of view, any smooth solid surface is rough, uneven, full of pores, the adhesive into the surface of the grooves and micropores, curing to anchor, produce a strong bond.; According to the electrostatic theory, in this product, the electric double layer is formed by combining with the solid phase interface, thus generating electrostatic force to combine the two.
