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在实验室对渔用共混改性中高分子量聚乙烯/聚丙烯单丝(简称共混改性MMWPE/PP单丝)和普通聚乙烯单丝(简称普通PE单丝)拉伸力学性能进行了比较试验。结果表明,共混改性MMWPE/PP单丝较普通PE单丝断裂强度提高32.3%、结节强度提高25.6%、结强损失率提高7.4%,而断裂伸长率降低47.9%。在保持断裂强力优势的前提下,以共混改性MMWPE/PP绳网替代普通PE绳网,能使远洋拖网与养殖网具用原材料降低消耗及水阻力减小,从而实现渔业生产的降耗减阻。结论可为高性能材料的选配、远洋拖网与养殖网具的优化设计提供参考。
Tensile mechanical properties of high molecular weight polyethylene / polypropylene monofilament (abbreviated as blending modified MMWPE / PP monofilament) and ordinary polyethylene monofilament Compare the test. The results showed that the breaking strength of blend modified MMWPE / PP monofilament increased 32.3%, the nodular strength increased 25.6%, the loss of knot strength increased 7.4% and the elongation at break decreased 47.9%. Maintaining the advantage of breaking strength under the premise of blended modified MMWPE / PP rope instead of ordinary PE rope net, can make the trawling and breeding net with raw materials to reduce consumption and water resistance to reduce, so as to achieve the reduction of fishery production Drag reduction. Conclusions can provide a reference for the selection of high-performance materials, the optimization design of ocean trawling and aquaculture nets.