Polyolefin pipe with copper ion resistance and preparation method thereof

The invention discloses a polyolefin pipe with copper ion resistance and a preparation method thereof, and relates to the technical field of pipes. The invention relates to a copper-resistant polyolefin material, which comprises the following components by mass: 95-98% of PPRCT; 2-5% of a modified wollastonite composite material; the modified wollastonite composite material comprises wollastonite, an antioxidant and a surfactant, the antioxidant and the surfactant are sequentially grafted on the surface of the wollastonite, the mass ratio of the wollastonite to the surfactant to the antioxidant is (2-2.5): (0.3-0.6): 1.5, and the crystallinity of beta crystals in PPRCT is 60-80%. The polyolefin pipe provided by the invention has excellent pressure resistance, low heat conductivity and good heat resistance, and can prevent a pipeline from being influenced by catalysis of metal copper or free copper when being used in a hot water pipeline system containing a copper material for a long time. 本发明公开了一种具有耐铜离子的聚烯烃管及