摘要
为了研究Vectran长丝捻度、试样长度、拉伸速度和上浆对其拉伸力学性能的影响,采用等速拉伸的测试方法对Vcetran长丝的拉伸力学性能进行了测试,并对结果进行分析比较。结果表明:Vectran长丝的捻度与断裂强力呈二次多项式关系,与断裂伸长呈线性关系;随着试样长度的增加,Vectran长丝的断裂强力先增大后降低,断裂伸长率则呈现相反趋势;Vectran长丝断裂强力随着拉伸速度的增加而有小幅度增大的变化趋势,而断裂伸长率无明显变化。试验还表明,上浆对Vectran长丝具有增强保伸作用。
Constant speed elongation is used to test the elongation physics of Vectran filament with the test result analyzed and compared. The result shows that： twist has a quadratic polynomial relationship with breaking strength of Vectran filament and a linear relationship with breaking elongation; with the increase of the sample length of Vectran filament, the breaking strength shows increased firstly and then decreased, while the breaking elongation shows the opposite trend; there is a slight increase of breaking strength of Vectran filament with the increase of tensile speed, but yarn breaking elongation is not very obvious. The result also indicates that sizing can improve the elongation of Vectran filament.
出处
《上海纺织科技》
北大核心
2012年第11期26-28,共3页
Shanghai Textile Science & Technology
基金
中央高校基本科研业务费专项资金资助(12D63204)
