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为给渔具设计与材料的合理选配提供科学依据 ,通过差示扫描量热法 (DSC)、广角X射线衍射 (WAXD)及扫描电镜 (SEM )等方法的比较 ,研究了渔用高强度聚乙烯 (high strengthpolyethylene ,简称HSPE)和普通聚乙烯 (PE)单丝的结构与性能。结果表明 ,HSPE单丝的断裂强度和结节强度比普通PE单丝分别提高了 14 .5 4% ,3 .0 5 % ,而断裂伸长率降低了44 .44 % ;HSPE单丝的结晶度和声速值比普通PE单丝分别增加了 6.2 0 %和 76.8% ;HSPE单丝微晶尺寸稍大于普通PE单丝 ,而晶胞参数变化很小 ;HSPE单丝内部结晶形态为平行的串晶和纤维复合结构。正是由于结晶度、取向度的提高以及单丝内部生成了平行的串晶和纤维复合结构 ,导致了渔用HSPE单丝强度的提高。
In order to provide a scientific basis for the reasonable matching of fishing tackle design and materials, the effects of fishing high-intensity poly Structure and Properties of High Strength Polyethylene (HSPE) and Ordinary Polyethylene (PE) Monofilament. The results showed that the breaking strength and nodule strength of HSPE monofilaments increased by 14.54% and 3.05% respectively compared with that of ordinary PE monofilaments, while the elongation at break decreased by 44.44%. The crystallization of HSPE monofilaments Compared with ordinary PE monofilaments, the degree and the speed of sound increased by 6.2% and 76.8% respectively. The size of HSPE monofilaments was slightly larger than that of ordinary PE monofilaments, while the change of unit cell parameters was small. The internal crystal morphology of HSPE monofilaments was parallel Crystal and fiber composite structure. It is precisely because of the degree of crystallinity, degree of orientation and the monofilament parallel to the formation of parallel string and fiber composite structure, resulting in fishing HSPE monofilament strength.