The difference between PVC and PET packaging boxes

2022-03-07 17:10:00 浙江普凯新材料有限公司 Viewd 253

PVC box and PET box are one of the most commonly used transparent plastic box packaging products. It is difficult for friends who are new to contact to clarify the difference between them. Today, Dongguan Ganhe plastic box manufacturer will take you to know about PVC box and PET. The differences and respective characteristics of the boxes.

PVC plastic box material has non-flammability, high strength, weather resistance and excellent geometric stability. PVC is very resistant to oxidizing agents, reducing agents and strong acids. However, it can be corroded by concentrated oxidizing acids such as concentrated sulfuric acid and concentrated nitric acid and is also not suitable for the occasions where aromatic hydrocarbons and chlorinated hydrocarbons are in contact. The PVC box made of PVC has the characteristics of low cost, easy processing and good transparency.

PET is a polymer material, the full name is polyethylene terephthalate, which is widely used. Now most beverage bottles are made of it, which is a degradable and recyclable material. PET plastic boxes have good transparency and no Poisonous, anti-penetration, light weight, high production efficiency, slightly fragrant smell, it will have certain shrinkage, that is, environmental protection and other advantages.

There are some simple methods to distinguish between PVC boxes and PET boxes. Use a lighter to burn a corner of the transparent plastic box, PVC will emit a pungent smell, and PET will have a certain shrinkage in addition to the slightly fragrant smell. When the corner of the plastic sheet is folded by hand, there will be whitening at the folded edge of PVC, while PET will not turn white and has some toughness.