PPR (polypropylene random), also known as random copolymer polypropylene (PPR),
The properties of PPR are as follows:
1, physical properties: PPR is a non-toxic, odorless, odorless milky white high crystalline polymer, particularly stable to water, good formability, good surface gloss, easy to color.
2, mechanical properties: PPR has high crystallinity, its strength, hardness, elasticity are better
3, thermal properties: PPR has good heat resistance, the finished product can be sterilized at temperatures above 100 °C
4, chemical stability: PPR has good chemical stability, in addition to being able to be attacked by concentrated sulfuric acid and concentrated nitric acid, it is stable to various other chemical reagents.
5, electrical properties: PPR high-frequency insulation performance, because it is almost no water absorption, so the insulation performance is not affected by humidity