Kurze Einführung in HDPE-Rohrmaterial
Jan 16, 2022
High density polyethylene, the English name is "High Density Polyethylene", referred to as "HDPE". HDPE is a highly crystalline, non-polar thermoplastic resin. The appearance of the original HDPE is milky white, and it is translucent to a certain extent in the thin section. PE has excellent resistance to most household and industrial chemicals. Certain types of chemicals are chemically aggressive, such as corrosive oxidants (concentrated nitric acid), aromatic hydrocarbons (xylene), and halogenated hydrocarbons (carbon tetrachloride). The polymer is non-hygroscopic and has good water vapour resistance for packaging applications. HDPE has good electrical properties, especially high insulation dielectric strength, making it very suitable for wires and cables. Medium to high molecular weight grades have excellent impact resistance at ambient temperatures and even as low as -40F.
Obwohl HDPE bereits 1956 eingeführt wurde, ist der Kunststoff noch nicht ausgereift. Dieses vielseitige Material wird ständig für neue Anwendungen und Märkte weiterentwickelt.
PE kann mit den unterschiedlichsten Verarbeitungsverfahren hergestellt werden. Dazu gehören beispielsweise Plattenextrusion, Folienextrusion, Rohr- oder Profilextrusion, Blasformen, Spritzgießen und Rotationsformen.
