高刚韧平衡阻燃抗静电聚丙烯复合材料的制备及矿用管材应用研究
刘国刚 , 孙炜歆 , 杨坤 , 包涵 , 李文慧 , 朱会岐
塑料科技 ›› 2026, Vol. 54 ›› Issue (8) : 73 -78.
高刚韧平衡阻燃抗静电聚丙烯复合材料的制备及矿用管材应用研究
Preparation of High Rigidity-Toughness Balanced Flame Retardant and Antistatic Polypropylene Composites and Their Application in Mining Pipes
为提高煤矿井下特殊工况管道材料的综合性能,制备一种高刚韧平衡矿用阻燃抗静电聚丙烯(FRPP)管材专用材料。以自制高刚韧平衡聚丙烯组合物为基体,采用红磷阻燃剂与超导炭黑协同改性,结合母粒法工艺制备高浓度功能母粒,系统研究母粒添加量对材料性能的影响。结果表明,当高刚韧平衡聚丙烯组合物和母粒质量比为1∶1时,FRPP复合材料的表面电阻降至10⁶ Ω,有焰燃烧时间为2 s,满足MT 113—1995标准要求。此时,FRPP复合材料的弯曲模量高达1 009.00 MPa,具备良好的低温韧性,能够有效解决传统高密度聚乙烯(HDPE)钢丝网骨架复合管在长距架设时下垂的问题。在现场应用中,FRPP管道在许用应力、安全系数及抗下垂能力方面表现优秀,具有工程应用价值。
To improve the comprehensive performance of pipeline materials used in special underground coal mine conditions, a high rigidity-toughness balanced flame retardant and antistatic polypropylene (FRPP) special pipe material was prepared. Using a self-developed high rigidity-toughness balanced polypropylene composition as the matrix, red phosphorus flame retardant and superconducting carbon black were employed for synergistic modification, and a high-concentration functional masterbatch was prepared via the masterbatch process. The effects of masterbatch addition on material properties were systematically investigated. The results showed that when the mass ratio of the high rigidity-toughness balanced polypropylene composition to the masterbatch was 1∶1, the surface resistivity of the FRPP composite decreased to 106 Ω, and the flame burning time was 2 s, meeting the requirements of the MT 113—1995 standard. At this ratio, the flexural modulus of the FRPP composite reached as high as 1 009.00 MPa, and it exhibited good low-temperature toughness, effectively addressing the sagging problem of traditional high-density polyethylene (HDPE) steel wire mesh skeleton composite pipes during long-distance installation. In field applications, the FRPP pipe demonstrated excellent performance in terms of allowable stress, safety factor, and sag resistance, showing promising engineering application value.
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北京低碳清洁能源研究院科技创新项目(S930023072)
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