EVA wax, fully known as ethylene vinyl acetate copolymer wax, is most suitable for black masterbatch and EVA masterbatch that need to disperse carbon black.

It is widely used in the hot melt adhesive industry and can provide a certain degree of adhesive viscosity. In the coating industry, it can significantly improve the surface properties of powder coatings. EVA wax is widely used as dispersant, lubricant and brightener of Color Masterbatch such as polyethylene, polyvinyl chloride and polypropylene. It can meet the needs of manufacturing color masterbatch with different colors, different plastics and efficient processing equipment. It is a new dispersant of color masterbatch. 

EVA wax (hot melt adhesive) is widely applicable, such as PA (polypropylene), PA (polyethylene) and other non-polar materials. The adhesive layer has good low temperature resistance, water resistance and moisture resistance.

1. Suitable for black masterbatch and EVA masterbatch that need to disperse carbon black.

2. It is widely used in the hot melt adhesive industry and can provide a certain degree of adhesive viscosity.

3. It is allowed to be used in food packaging / cosmetics and packaging / personal hygiene products in contact with human body.

4. In the coating industry, it can significantly improve the surface characteristics of powder coatings.

5. Environmentally friendly products have passed ROHS and heavy metal detection.

In plastic processing, it can not only play the role of lubrication, brightness and dispersion, but also improve the printing performance and adhesion of plastic products.

Main features:

1. Good dispersion performance. Narrow molecular weight distribution, high thermal stability and strong contact ability with various pigments, which can meet the needs of efficient processing equipment.

2. High coloring strength. It can significantly improve the coloring ability of various pigments and improve the quality of color masterbatch.

3. Highly targeted. Relevant special wax varieties can be selected according to pigment types, color masterbatch carrier plastic varieties and color masterbatch service conditions, so as to obtain the best dispersion effect.

4. The reference dosage is 8% ~ 15% of the total amount of color masterbatch.

The basic composition of EVA wax (hot melt adhesive) is EVA resin, tackifying resin, wax and stabilizer.

EVA resin introduces a short branched chain composed of polar acetic acid gene into the ethylene branched chain, disrupting the original crystallization state, resulting in EVA tending to "plasticization effect", reducing the crystallinity of ethylene on the branched chain, increasing the distance between polymer chains, and making EVA resin more flexible and elastic.

The VA content in EVA resin can range from low to high percentage. Therefore, the percentage of VA and mi (melt index, reflecting molecular weight) in the resin are the most important factors that directly determine and affect the properties of EVA. 

Generally, the EVA content is high, the adhesion increases, the wettability of the bonded material is good, the curing time is slow, and the heat resistance decreases. The high melt index indicates that the molecular weight is low, the colloid viscosity decreases, the wettability is good, the heat resistance decreases, and the adhesive force remains unchanged.

EVA in ethylene based copolymer has higher fracture tensile strength than EEA (ethylene ethyl acrylate), EAA (ethylene propylene ester) and EMA (ethyl methacrylate), which varies with the content of VA. If the MI of EVA is different, the change of fracture tensile strength is greater.

The tensile strength of the yield point of EVA wax decreases with the increase of VA content. If the VA content is more than 25%, it becomes very small.

The bending rigidity of EVA is equal to that of soft PVC, which decreases with the increase of VA, while the bending rigidity decreases with the increase of MI.

EVA resin has good compatibility. It can be dissolved and mixed with other resins to improve physical properties. If EVA resin is mixed with nitric acid fiber, the nitric acid fiber has excellent bending resistance, flexibility, friction resistance and heat sealing.

Rigid PVC mixed with 5% ~ 10% EVA improves fluidity and impact resistance. Eva was mixed into polyamide resin to develop good bending resistance and coloring at low temperature.

Tackifying resins include rosin, rosin ester, polyterpene resin, low molecular weight polystyrene, C5 and C9 olefin resin, etc. The selection of tackifying resin should pay attention to its thermal stability. Generally, olefin resin is better than rosin derivative. However, rosin derivatives can provide better adhesion.

Qingdao Sainuo Chemical Co., Ltd. We are manufacturer of  PE wax, PP wax, OPE wax, EVA wax, PEMA, EBS, Zinc/Calcium Stearate…. Our products have passed the REACH, ROHS, PAHS, FDA testing.

Sainuo rest assured wax, welcome your inquiry!

Website：https://www.sainuowax.com

E-mail：sales@qdsainuo.com

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