新闻中心
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..
EVA hot melt adhesive is different from regular cold melt adhesive. According to its characteristics, the following points must be mastered and noted during use: 1、 Understand and master the models and technical performance (including technical parameters) of each EVA hot melt adhesive. Different types of hot melt adhesives have different opening and curing times. […]
Direct answer: EVA hot melt adhesive granules are used for book and magazine packaging, and the glue pot is generally set at 160-180 ℃; The packaging and sealing scenarios are mostly between 150-170 ℃; The recommended construction temperature provided by the rubber particle manufacturer shall prevail, and the fluctuation should not exceed 10 ℃. The […]
Choose packaging hot melt adhesive, focus on the coreAdhesive material, production line speed, environmental requirements, delivery radiusDifferent scenarios correspond to different factories and adhesive types. Below are clear selection directions based on mainstream scenarios. 1、 Ordinary cardboard box/sealed box (universal EVA adhesive, cost-effectiveness priority) Suitable for: regular cardboard box sealing, cardboard box forming, handbag bonding, […]
The quality of book binding often depends not only on the equipment and paper, but also on the binding adhesive. If a book experiences problems such as page dropping, glue peeling, stiff spine, uneven flipping, and low-temperature brittleness, it is often related to the choice of binding glue, glue temperature, paper type, and process compatibility. […]
