The invention belongs to the technical field of plastic products, and discloses a PE drainage pipe and a production process thereof. The PE drainage pipe is prepared from the following raw materials in parts by weight: 80–100 parts of PE, 3–5 parts of nano-MgO, 0–5 parts of nano-MnS, 5–15 parts of heavy calcium carbonate, 2–5 parts of a coupling agent, 0–3 parts of EVA, 3–5 parts of a flame retardant, 3–10 parts of a toughener, 1–5 parts of a heat stabilizer and 0–2 parts of a processing aid. The beneficial effects of the invention are as follows: nano-MgO can enhance the thermal conductivity of PE products and avoid cold welding during the welding of PE pipes; nano-MnS can maintain the stability of polyethylene molecular chains during welding and prevent thermal oxidation of polyethylene at excessively high welding temperatures; heavy calcium carbonate acts synergistically with nano-MgO and nano-MnS to improve the stability and firmness of welded joints. The addition of nano-MgO, nano-MnS and heavy calcium carbonate broadens the temperature range for PE pipe welding and improves the stability of PE pipe welding.
Area Code: CN
Application Number: CN202010589412.9
