Polypropylene tubing (PP tubing, pprc) today are becoming increasingly popular in many areas of industry and economy. Much of this popularity is due to the properties of the material used to produce polypropylene tubing.
Polypropylene – a synthetic polymer. Due to its molecular structure, it has a special strength and hardness, it also differs significantly heat resistance. Polypropylene is very weakly influenced by aggressive media – acids, alkalis and solutions of other inorganic substances, resistant to temperature extremes. Production industry in the form of granules in white stabilized, which can be painted. Domestic manufacturers produce polypropylene in accordance with GOST 26996-86. Polypropylene is less dense than PEX (density 0.90 g/cm3), but more resistant to abrasion (firmer), has a high thermal stability (t softening point-140 ° C, t melting 175 ° C) and almost not affected by stress corrosion cracking. It has a high sensitivity to light and oxygen, but the problem is solved by the introduction of the stabilizers. Polypropylene is chemically resistant and susceptible to only a strong oxidizer – nitric acid, halogens, etc. At temperatures above 100 ° C may also influence aromatic hydrocarbons. In sub-zero temperatures (-5 …- 15 ° C, depending on the brand) polypropylene becomes brittle.
The above material properties allow the use of polypropylene tubes in almost all spheres of municipal services – from hot and cold water, to the systems of external and domestic Plumbing, as well as in many industrial applications for transportation of various liquids, including chemically aggressive.