How To Adjust The Viscosity Of EVA Hot Melt Adhesive

2023-07-31   Pageview:144

How to adjust the viscosity of EVA hot melt adhesive? EVA hot melt adhesive is a solvent-free, moisture-free, 100% solid meltable polymer. Main ingredients: basic resin, together with tackifier, viscosity regulator, antioxidant, etc. to make hot melt adhesive. Fischer-Tropsch wax as a viscosity regulator in the production of EVA-based hot melt adhesives is mainly to reduce the viscosity of the polymer and increase the fluidity.

Types of EVA-based hot-melt adhesive viscosity modifiers: commonly used viscosity modifiers include stone wax, microcrystalline wax, polyolefin wax, Fischer-Tropsch wax, oxidized polyolefin wax, polypropylene wax, Sasol wax, superfine wax Chemical polymers, APAO, ethylene bis stearic acid amide, EVA, urea, hydroxylamine hydrochloride, hydroxylamine sulfate, cyclohexanol, etc.

EVA-based hot melt adhesive application characteristics:
Water resistance: Closed cell structure, non-absorbent, moisture-proof, good water resistance.
Corrosion resistance: resistant to seawater, grease, acid, alkali and other chemical corrosion, antibacterial, non-toxic, tasteless, and pollution-free.
Processability: No joints, and easy to process such as hot pressing, cutting, gluing, laminating, etc.
Anti-vibration: high resilience and tensile strength, high toughness, and good anti-shock/cushioning performance.
Thermal insulation: heat insulation, excellent thermal insulation, cold protection and low temperature performance, and can withstand severe cold and exposure.
Sound insulation: airtight cell, good sound insulation effect.

TIANSHI Fischer-Tropsch wax is composed of straight-chain, saturated high-carbon alkanes with a relative molecular mass of 500-1000. This gives this specialty chemical a fine crystal structure, high melting point (typically above 85°C), narrow melting point range, low oil content, low penetration, low mobility, very low melt viscosity, stability High and hard, wear-resistant and other characteristics, high melting point wax can improve the heat resistance and quick drying of the adhesive.

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