深水网箱箱体用超高强绳索物理机械性能的研究

Physical and mechanical properties research on ultra-high strength rope used in offshore cage body

2000年～2012年期间东海水产研究所对深水网箱箱体用十二股超高强绳索(以下简称UHSPE绳索)的物理机械性能进行了研究。结果表明,直径12mm的UHSPE绳索的线密度、断裂强力、断裂强度、伸长率分别为80.0ktex、60.7kN、7.59cN/dtex和6.2%;UHSPE绳索具有断裂强力高、断裂强度高、伸长率小的特性;与同等直径的普通合成纤维绳索(以下简称普通绳索)相比,UHSPE绳索断裂强力性能优势明显;在保持绳索断裂强力优势的前提下,以直径12mm的UHSPE绳索来替代直径范围20mm～27mm内的普通绳索,用来制作深水网箱箱体绳索,就能使绳索线密度减小、使用直径减小、断裂强度增加、伸长率减小、网箱阻力减少、网箱箱体用原材料消耗减少。与普通绳索相比,UHSPE绳索具有安全性高、耐磨性好、使用寿命长和性价比好的效果。

Physical and mechanical properties of the 12-strand ultra-high strength rope used in offshore nets have been studied by East China Sea Fisheries Research Institute from 2000 to 2012. The results showed that the value of the linear density of the UHSPE rope with diameter 12 mm was 80.0ktex, the value of the breaking force of the UHSPE rope with diameter 12 mm was 60.7kN, the value of the breaking strength of the UHSPE rope with diameter 12 mm was 7.59 cN/dtex, and the value of the elongation of the UHSPE rope with diameter 12 mm was 6.2%. UHSPE rope had the character of high breaking force, high breaking strength and less elongation; compared to the common synthetic fiber rope （common rope） with same diameter, the breaking strength performance of UHSPE rope was very obvious; On condition of maintaining the rope breaking strength superiority, replacing the common rope by UHSPE rope for the using of offshore cage body, could decrease the linear density, the elongation, the cage resistance, the raw material consumption of cage and the rope using diameter, it also could increase the rope breaking strength. Compared to the common rope, UHSPE rope had high safety, good abrasive resistance, long service life and good cost performance.