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The main components of EVA hot melt adhesive play a crucial role in its performance.
Main types: ethylene and its copolymers, polyolefins, polyesters, polyurethanes, polyamides, styrene and its block copolymers, and other polymers.
The impact on the properties of hot melt adhesive: adhesive strength, melt index, softening point, viscosity, flexibility, curing speed, and thermal stability.
Improve wetting and initial adhesion.
Main types: rosin and its derivatives, terpenes and modified terpene resins, petroleum resins.
The influence of hot melt adhesive performance: Reflected in adhesive wettability ↑, initial viscosity ↑, adhesive strength ↑, viscosity ↓, heat resistance, and exposure time.
Increase the fluidity of colloids, adjust the solidification speed, and achieve the goal of rapid bonding and firmness.
Main types: paraffin wax, microcrystalline wax, synthetic wax.
The influence on the properties of hot melt adhesive: melt reaction index ↑, flowability ↑, exposure time ↓, creep resistance, flexibility, melting speed, self-adhesive performance, cohesive strength ↓, adhesive strength ↓
Improve the thermal stability of EVA hot melt adhesive.
Main types: Phenol and its derivatives.
The influence of hot melt adhesive performance: reaction heat aging rate ↓, viscosity stability ↑, color stability ↑, adhesive strength
Improve the brittleness and flexibility of EVA hot melt adhesive.
Main types: aliphatic mineral oil, dioctyl phthalate, dibutyl phthalate, liquid paraffin.
The influence of hot melt adhesive performance: Reflected in hardness ↓, modulus ↓, brittleness ↓, elongation ↑, flexibility ↑, flexibility ↑
Improve performance and reduce costs.
The influence of EVA hot melt adhesive performance: reactions in heat resistance, heat capacity, shrinkage rate, permeability, self adhesiveness, flowability, viscosity, crystallization rate, adhesive strength, peel strength, and other aspects..
Hot melt adhesive granulesWhat is the typical melting point? There is no unified “melting point” for hot melt adhesive particles, which are more commonly used in the industrysoftening pointandRecommended temperature for useTo describe. The softening point of common EVA hot melt adhesive particles is about 70 ℃ -110 ℃, while the actual coating (gluing) temperature […]
Almost all factories that do book and magazine binding have encountered this frustrating problem: the production line is running, and the glue outlet of the glue binding machine suddenly breaks and is intermittent, or directly blocks the glue without dispensing, resulting in the opening, breaking, and uneven thickness of the glue layer on the books. […]
It is crucial to choose the appropriatehot melt adhesivefor each application. The adhesive required to complete a specific task may vary greatly, so it is important to understand which adhesive is most suitable for your application. The five commonly used types of main polymer substrates are the main components of our paper boxes and box […]
How to distinguish the quality of book binding glue? The hot melt adhesive used in books is divided into backing adhesive and edge sealing adhesive According to the thickness of different materials of paper and books, book adhesives with different viscosities and flow effects can be used to complete the bonding work of book pages. […]
