PVC material is a kind of synthetic material, and it is one of the materials with large output in the world. It cannot be used alone, and must be processed before it can be used. EVA material is a new type of environmentally friendly plastic foaming material, suitable for making refrigerator ducts, gas pipes, civil plates, containers and daily necessities. There are different differences between these two materials, so in the following time, Xiaoli Hongli will briefly explain the differences between PVC and EVA materials.
PVC materials are divided into low-toxic and environmentally friendly and non-toxic and environmentally friendly. EVA materials are all environmentally friendly materials. The surface of EVA is soft, the tensile strength is stronger than PVC, and the feel is sticky. These two materials are white and transparent. The look and feel of the EVA material is very similar to that of the PVC material, and attention should be paid to the distinction.
PVC: Natural yellowish translucent, shiny. Transparency is better than polyethylene and polystyrene, worse than polystyrene. Depending on the amount of additives, it is divided into soft and hard polyvinyl chloride. Soft products are soft and tough, and they have a sticky feel. , And lower than polypropylene, there will be whitening phenomenon at the inflection point.
EVA: The performance of EVA has a great relationship with the content of vinyl acetate. When the content of VA increases, its resilience, flexibility, adhesion, transparency, solubility, stress crack resistance and impact performance will improve. ; When the content of VA decreases, the rigidity, abrasion resistance and electrical insulation of EVA will increase.