What is the difference between PETG and PP?

They are also different in terms of application, so there is no good or bad difference between the two in terms of performance and use. It depends on the application scenario and the product being made.

PETG and PP are both popular materials at the moment, and these two plastics are widely used. So what is the difference between PETG and PP?

The chemical name of PP is polypropylene. PP is a kind of plastic material. It is also known as polypropylene, is a colorless, odorless, non-toxic, translucent, and excellent thermoplastic synthetic resin. It is a thermoplastic lightweight general-purpose plastic. These include small amounts of ethylene copolymers, which are produced by drying, mixing, extruding, granulating, screening and homogenizing processes.

The particle of PP is round , very smooth and free of mechanical impurities. In addition, its impact strength is large, and the impact strength of PP will increase with the increase of ethylene content.

PP is the lightest plastic raw material with excellent mechanical properties. The temperature during continuous use can be as high as 110-120°C. It has good chemical properties and will not interact with other chemicals in most cases. Made of PP Lunch boxes are the only plastic lunch boxes that can be put in the microwave. They can be reused many times after cleaning. PP has good water resistance and insulation properties, but its shortcoming is that it ages easily. The main uses of PP can be divided into five categories, namely injection molding, wire drawing, fiber, film, pipe, etc.

PETG can be degraded. PETG is a transparent, non-crystalline plastic. Its full name is polyethylene terephthalate-1,4-cyclohexanedimethanol. It is smaller than the common PET(polyethylene terephthalate). Alcohol ester has an additional comonomer of 1,4-cyclohexanedimethanol in the molecular chain. PETG is also a petrochemical product and takes a long time to degrade in nature.

PETG is also commonly used for printing. When printing models, the material comes out smoothly and is not easy to block. The printed product has high gloss, high strength, smooth surface, the product is not easy to break, and has a translucent effect.

From the above introduction, we can see that PETG and PP are materials with different properties. They are also different in terms of application, so there is no good or bad difference between the two in terms of performance and use. It depends on the application scenario and the product being made. Each has its own advantages and disadvantages, and both materials can be used. It is used as raw material for blow molding of bottle blowing machines to produce various plastic hollow containers and products.