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渔用聚丙烯聚酰胺(PP/PA)复合单丝是东海水产研究所采用共混改性技术及特殊纺丝工艺生产的渔用纤维新材料。课题组在对渔用PP/PA复合单丝和普通聚丙烯(PP)单丝结构和性能前期研究的基础上,对同等加压负荷下两种单丝的磨损质量损失、耐磨度、强度保持率以及伸长变化进行了比较,揭示了单丝材料的结构与耐磨性之间的关系。在相同加压负荷(1.274N)下,干摩擦、水润滑摩擦条件下的渔用PP/PA复合单丝的磨损质量损失较普通PP单丝分别减小了25.9%、10.0%;在1.274N、2.901N和5.351N加压负荷及干摩擦条件下渔用PP/PA复合单丝较普通PP单丝的耐磨度增加了38.4%、28.2%和28.4%;在1.274N、2.901N和5.351N加压负荷及水润滑摩擦条件下渔用PP/PA复合单丝较普通PP单丝的耐磨度增加了63.8%、74.7%和94.6%;在相同加压负荷(1.274N)、摩擦次数及干摩擦条件下,渔用PP/PA复合单丝的断裂强度保持率高于普通PP单丝,而伸长变化较小。实验结果表明,与普通PP单丝相比,渔用PP/PA复合单丝耐磨性增加。
Fishery Polypropylene Polyamide (PP / PA) composite monofilament is a new fishing fiber material produced by blending modification technology and special spinning technology of the East China Sea Fisheries Research Institute. Based on the previous studies on the structure and properties of fishing PP / PA monofilament and ordinary polypropylene (PP) monofilament, the research group studied the wear quality loss, wear resistance, strength Retention rate and elongation changes were compared, revealing the monofilament material structure and wear resistance relationship. Under the same pressure load (1.274N), the wear quality loss of fishing PP / PA composite monofilaments decreased by 25.9% and 10.0% respectively compared with ordinary PP monofilament under the conditions of dry friction and water-lubricated friction; at 1.274N , 2.901N and 5.351N, the abrasion resistance of fishing PP / PA composite monofilaments increased by 38.4%, 28.2% and 28.4% respectively compared with that of ordinary PP monofilament under the pressure load and dry friction condition. At 1.274N, 2.901N and 5.351 Under the same pressure load (1.274N) and the number of rubbing times (MPa), the wear resistance of fishing PP / PA composite monofilament increased by 63.8%, 74.7% and 94.6% And dry friction conditions, the fishing PP / PA composite monofilament rupture strength retention rate higher than ordinary PP monofilament, and the elongation changes smaller. The experimental results show that, compared with ordinary PP monofilament, fishing PP / PA monofilament abrasion resistance increased.