【摘要】 本研究采用紫外线(UV)对渔网材料尼龙-6纤维辐照,继而进行接枝AA的表面凝胶化改性研究,以制备一种能防止海洋污损生物附着的渔网材料。研究了辐照条件、凝胶化改性接枝条件等对接枝反应的影响以及凝胶化改性纤维的性能。研究结果表明,采用UV预辐照,可以显著提高尼龙-6纤维对AA的接枝率。接枝率随单体浓度、接枝反应时间的增加而升高;随接枝反应温度的增加先升高后又有所下降;一定量的无机酸使接枝率明显提高;随着阻聚剂盐用量的增加接枝率先增加而后又降低。扫描电镜观察接枝纤维表面可以证实接枝物的存在。接枝AA后尼龙-6纤维的吸水率明显升高,力学性能有所降低。更多还原

【Abstract】 Nylon-6 fishnet materials were irradiated by UV, and grafted by AA to prepare a kind of anti-halobios coherence fishnet.The influences of irradiation, temperature, reaction time etc on grafting rate, the properties of grafting nylon-6 fibers were studied. The results showed that the UV irradiation can improve the graft rate of Nylon-g-AA, which increased with the concentration of monomer and reaction time increasing, increased firstly and then decreased with the temperature and the dosage of Mohr’s salt increasing. A few inorganic acid can accelerate the grafting reaction. The ratio of water absorption was improved evidently.更多还原