Comparative study on mechanical tensile properties of high- strength polyethylene and common polyethylene nets woven by machine in English knot type for fishing
SHI Jian-gao, WANG Lu-min, TANG Zhen-ming, XU Jun-zhuo, JIA Jia-wu
1. Key Laboratory of Marine and Estuarine Fisheries, Ministry of Agriculture, East China Sea Fisheries Research Institute ,Chinese Academy of Fishery Sciences, Shanghai 200090, China; 2. Marine Fisheries Research Institute of Zhejiang, Zhoushan 316100, China
Abstract: Comparisons of mechanical tensile properties of high - strength polyethylene machine weaving netting in English knot type （HSPE machine weaving netting） with common polyethylene machine weaving netting in English knot type （PE machine weaving netting） have been made by applying the SC 5005 fisheries trade standard, GB/T 18673 national standard. The results indicated that, under the same condition（ including linear density of monofilament used for weaving netting, mesh size, resultant linear density of twine, netting ply and twisted technology）, there were significant differences between the 36 - strand HSPE machine weaving netting and 36 - strand PE machine weaving netting in tensile mechanical properties. Under the condition mentioned, above the 36 - strand HSPE machine weaving netting has an advantage over 36 - strand PE machine weaving netting in netting strength, while in percentage of breaking elongation in the same direction （ either in the N - direction or in the T - direction）, the latter is bigger than the former. The standard deviation of the testing results, the standard deviation of the reproducibility tests, and the coefficient variation of the up - mentioned tests are rather small; this means, under the condition of repeat or reproducibility, variation in the testing results are quite small either. Under the prerequisite of a netting strength advantage, the HSPE machine weaving netting, if used in trawler or other fishing is more economical than PE machine weaving netting. It is feasible for us to apphcation and dissemination of the HSPE machine weaving netting in fishing.
石建高, 王鲁民, 汤振明, 徐君卓, 贾家武. 渔用高强度聚乙烯和普通聚乙烯机织网片拉伸力学性能的比较[J]. 大连海洋大学学报, 2006, 21(2): 162-165.
SHI Jian-gao, WANG Lu-min, TANG Zhen-ming, XU Jun-zhuo, JIA Jia-wu. Comparative study on mechanical tensile properties of high- strength polyethylene and common polyethylene nets woven by machine in English knot type for fishing. Journal of Dalian Ocean University, 2006, 21(2): 162-165.
2006, Vol. 21 
