Polyethylene pipe for water supply and preparation method thereof

• Main Authors: ZHANG JIAN, SHANG LEI, ZHANG JIURU
• Format: Patent
• Language: Chinese; English
• Published: 23.06.2023
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention discloses a preparation method of a polyethylene pipe for water supply, which comprises the following steps: A, preparing the following raw materials in parts by mass: 200 parts of polyethylene, 3-5 parts of carbon black master batch, 1-2 parts of antioxidant, 1-2 parts of flame retardant and 15 parts of polypropylene; b, heating and mixing polyethylene and polypropylene in an open mill, standing and cooling for later use; c, mixing the polyethylene and polypropylene mixture treated in the step B, the carbon black master batch, the antioxidant and the flame retardant in a cutting machine; and D, inputting the mixed raw materials into an extruder for extrusion molding. The defects in the prior art can be overcome, and the impact strength of the polyethylene pipe is improved. 本发明公开了一种给水用聚乙烯管材的制备方法，包括以下步骤：A、准备原料，原料包括，一下份数均为质量份数，聚乙200份，炭黑母3～5份，抗氧化剂1～2份，阻燃剂1～2份，聚丙烯15份；B、将聚乙烯和聚丙烯放入开炼机中加热混合，静置冷却后待用；C、将经过步骤B处理的聚乙烯和聚丙烯混合物以及炭黑母粒、抗氧化剂和阻燃剂放入开料机中混合；D、将混合好的原料输入挤出机挤出成型。本发明能够解决现有技术的不足，提高了聚乙烯管材的抗冲击强度。