超高分子量聚乙烯管道在疏浚输油工程上的应用前景

Ultra-High Molecular Weight Polyethylene Pipe on the Future of Dredging and Oil Project

中国的输油与疏浚工程技术正在飞速发展,迫切需要高性能、高强度、多功能、高安全性及符合绿色环保要求的输油与疏浚管道,以实现石油开采与输送的高效率与低成本,满足疏浚工程中大型多功能挖泥船的强度安全与高效率的需要。超高分子量聚乙烯(ultra-high molecular weightpolyethylene,简称UHMWPE)是由乙烯、丁二烯单体在催化剂的作用下-聚合而成的平均分子量大于150万的热塑性工程塑料。目前,世界范围内UHMWPE的分子量可达150万～1050万,结晶度为65%～85%,密度为0.92～0.96g/cm3。它具有高强度、高耐磨、高耐冲击、高耐寒、自润滑、不结垢、耐腐蚀、耐环境应力开裂性好、高抗内压强度、轻便等优点,可取代钢管和昂贵的合金钢管、不锈钢管,用于疏浚与输油这两大要求极严格的工程领域,实现这两大领域在材料上的突破与创新。

China＇s oil and dredging technology is developing rapidly, however, it is important supporting equipment, oil and dredging pipe, an urgent need for revolution in materials, the formation of high-performance, high-intensity, multi- functional, high security and composite green environmental re- quirements the pipeline. Using oil extraction and transport of high efficiency and low-cost is to meet the needs of the giant multifunctional dredger strength security and high efficiency. Therefore, this project research is imperative. Ultra-high Molecular Weight Polyethylene （ Abbreviation： UHMWPE） is polymeric thermoplastic engineering plastic which is catalyzed with ethylene and butadiene monomer, its average molecular weight is over 2 million. Nowadays the molecular weight of UHMWPE ranges is between 1.5 million to 10.50 million from a view of worldwide, degree of crystallinity ranges is from 65% to 85% and the density ranges is from 0. 92 to 0. 96g/cm3. It has good properties such as highly strength, highly abrasion- resistant, shockproof, highly cold-resistant, self-lubricative, self-clean, corrosion-resistant, resistant to environment stress cracking, highly resistant to intrinsic pressure, light weighted and portable. All these merits make it the top ranked plastic and can replace steel pipe and expensive alloy pipes, stainless steel pipes in two extremely strict engineering fields of dredging and oil transmitting, which achieve the breakthroughs and innovation of the two areas on the material.