Density
The density of PP is relatively small among all synthetic resins, only 0.90 ~ 0.91g/cm3, which is about 60% of that of PVC. This means that more products of the same volume can be produced with the same weight of raw materials.
2. Mechanical properties
The tensile strength and rigidity of PP are good, but the impact strength is poor at low temperature. In addition, if there is orientation or stress during molding, the impact strength will be significantly reduced. Although its impact strength is not that strong, its mechanical properties can compete with engineering plastics with higher cost in many fields after modification such as filling or reinforcement.
3. Surface hardness
The surface hardness of PP is lower than that of PE. When the crystallinity is higher, the hardness increases correspondingly, but it is not as good as PVC, PS, ABS and so on.
4. Thermal properties
Compared with ABS, PP has better heat resistance.
There are some differences between ABS plastics and PP plastics in terms of performance and characteristics. It's really inconclusive to say which is better or which is worse. Only when it comes to the specific production of which product can there be a more suitable material.